DRS WJ-8711A User manual

IN STALLATIO N , OPERATION , AN D
IN TERM EDIATE LEVEL M AIN TEN AN CE MAN UAL
FOR THE
W J-8711A DIGITAL HF RECEIVER
P/ N 181126-001, Revision Z
Copyright DRS Signal Solutions, Inc. 1995
All Rights Reserved
DRS Technologies
DRS Signal Solutions, Inc.
700 Quince Orchard Road
Gaithersburg, Maryland 20878-1794
March 2007
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PROPRIETARY STATEMEN T
This do c ument and sub ject matter disclo sed herein are pro prietary items to which
DRS Signal So lutio ns, Inc. reta ins the exclusive rig ht o f disseminatio n,
repro ductio n, manufac ture and sale.
This do cument is pro vided to the individual o r using o rg anizatio n fo r their use
alo ne in the dire ct suppo rt o f the asso ciate d e quipment unless permissio n fo r
further disclo sure is e xpressly granted in writing.
W ARRAN TY
Seller warrants fo r a pe rio d o f o ne ye ar fro m the date o f shipment, unless a
different period has been ag reed upo n and inco rpo rated into the Co ntract, that the
pro ducts delivered o r services rendered will co nfo rm to the spec ifica tio ns and b e
free fro m defects in wo rkmanship and materials. THE FO REG O ING
W ARRAN TIES ARE EXCLUSIVE AN D IN LIEU O F ALL O THER W ARRANTIES O F
MERCHAN TABILITY, FITN ESS FO R PURPO SE, O R O THER W ARRANTIES O R
G UARANTIES O F AN Y KIN D O R DESCRIPTIO N , W HETHER STATUTO RY,
EXPRESS, O R IMPLIED. If the g o o ds delivered o r services perfo rmed fail to
co nfo rm to the wa rranty sta ted in this c lause, Seller will c o rrect the no nco nfo rmity
at its e xpense b y such repair, a djustment, mo difica tio n, o r re pla cement o f the
g o o ds o r services a s Seller de ems expedient. THE FO REG O IN G REMEDY O F
BUYER FO R AN Y FAILURE O F THE G O O DS O R SERVICES TO MEET AN Y
W ARRAN TY IS EXCLUSIVE. BUYER EXPRESSLY AG REES THAT THE LIABILITY O F
SELLER UNDER AN Y W ARRANTY SHALL NO T INCLUDE DAMAG E TO O R LO SS
O F PRO PERTY O THER THAN THE G O O DS CO VERED BY THE CO NTRACT; LO SS
O F PRO FITS O R REVEN UE; IN CREASED CO STS O F AN Y KIND; CLAIMS O F
CUSTO MERS O F BUYER; O R ANY IN DIRECT, SPECIAL, IN CIDENTAL, O R
CO N SEQ UEN TIAL DAMAG ES. As to g o o ds o r co mpo nents where the c usto mer
has funded the repair, Seller will warrant as limited a bo ve, the repaired po rtio n o f
the unit fo r three mo nths fro m the da te o f reshipment. EQ UIPMEN T O R PARTS
DESCRIBED AS BEING MAN UFACTURED BY O THERS ARE SO LD BY SELLER AS IS
and Buyer must lo o k to the respective manufacturer for any and all claims with
reg ard to said equipment o r parts.
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W J-8711A DIGITAL HF RECEIVER
W ARN IN GS iii
W ARN IN G
This unit co nta ins a RAM Integ rate d Circuit (A2 U5 ) that includes an o n-b o ard
lithium so urce used as b ack up po wer fo r memo ry re tentio n. Extreme care sho uld
be used in sto ra ge, handling, and dispo sal o f pa rts having lithium c o ntent.
Impro per handling may present explo sio n hazard. If the Digital Assembly is to be
dispo sed, remo ve the RAM IC. If re pla cement o f the IC is req uired, ca re fully insert
a b lunt, no nme tallic, to o l be tween the bo tto m face o f the IC and the related so cket.
Pry the IC up at a slight angle and remove with fingers.
•W ear eye pro tectio n when handling co mpo nent with lithium c o ntent.
•Do no t puncture , co mpa ct, incinerate, sho rt circuit, o r expo se the lithium
energy source to temperatures abo ve 17 6 °F (8 0 °C).
•Do no t sto re ICs with lithium co ntent lo o se in bins. Sto re `rig inal
co nta iners.
•Dispo se o f ICs with lithium c o ntent pro pe rly. Discharg ed c ells sho uld be
handled with care, as they retain sig nifica nt energ y. They sho uld b e
ele ctrica lly iso lated a nd pa ckag ed fo r dispo sal. Dispo se in acc o rdance
with lo ca l reg ula tio ns fo r haz ardo us material dispo sal. DO N O T
IN CINERATE O R CO MPACT.
•Refer to Figure 7 -2 3 fo r lo catio n o f RAM IC (A2 U5 ) o n the Digita l
Assembly (A2 ).
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W J-8711A DIGITAL HF RECEIVER
iv W ARN IN GS
THIS PAGE IN TEN TION ALLY LEFT BLAN K
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A/ (B blank)
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THIS PAGE IN TEN TION ALLY LEFT BLAN K
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W J-8711A DIGITAL HF RECEIVER
LIST OF EFFECTIVE PAGES v
LIST OF EFFECTIVE PAGES
Page Number Descriptio n Revisio n
i Co ver Z
ii Pro prieta ry Statement R
iii W arnings R
iv Intentio nally Bla nk R
A Custo mer Feedb ack Fo rm R
B Intentio nally Bla nk S
v List o f Effective Pag es Z
vi List o f Effective Pag es Y
vii Revisio n Reco rd Z
viii Dec laratio n o f Co nfo rmity R
ix Tab le o f Co ntents T
x thru xii Tab le o f Co ntents V
xiii thru xv Tab le o f Co ntents T
xvi Tab le o f Co ntents V
xvii Tab le o f Co ntents T
xviii Tab le o f Co ntents R
1 -i Sectio n Co ver R
1 -0 Illustratio n S
1 -1 thru 1 -3 Sectio n O ne S
1 -4 Sectio n O ne Y
1 -5 thru 1 -6 Sectio n O ne S
1 -7 Sectio n O ne U
1 -8 thru 1 -1 2 Sectio n O ne S
2 -i Sectio n Co ver R
2 -0 Illustratio n R
2 -1 thru 2 -4 Sec tio n Two R
2 -5 thru 2 -8 Sec tio n Two T
2 -9 thru 2 -1 1 Sectio n Two Z
2 -1 2 thru 2 -1 4 Sectio n Two R
3 -i Sectio n Co ver R
3 -ii Intentio nally Bla nk R
3 -1 thru 3 -1 1 Sectio n Three R
3 -1 2 Sectio n Three V
3 -1 3 thru 3 -1 4 Sectio n Three R
3 -1 5 thru 3 -5 0 Sectio n Three V
4 -i Sectio n Co ver R
4 -ii Intentio nally Bla nk R
4 -1 thru 4 -2 8 Sectio n Fo ur R
5 -i Sectio n Co ver R
5 -ii Intentio nally Bla nk R
5 -1 Sectio n Five R
5 -2 thru 5 -1 8 Sectio n Five R
6 -i Sectio n Co ver S
6 -0 Illustratio n V
6 -1 thru 6 -1 4 Sectio n Six S
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W J-8711A DIGITAL HF RECEIVER
vi LIST OF EFFECTIVE PAGES
LIST OF EFFECTIVE PAGES (Continued)
Page Number Descriptio n Revisio n
7 -i Sectio n Co ver S
7 -ii Intentio nally Bla nk S
7 -1 thru 7 -2 3 Sectio n Seven S
7 -2 4 thru 7 -2 6 Sectio n Seven V
7 -2 7 thru 7 -3 0 Sectio n Seven V
8 -i Sectio n Co ver S
8 -ii Intentio nally Bla nk S
8 -1 thru 8 -6 Sectio n Eig ht S
8 -7 Sectio n Eig ht W
8 -8 thru 8 -7 2 Sectio n Eig ht S
FP-i Sectio n Co ver R
FP-ii Intentio nally Bla nk R
FP-1 / (FP-2 b lank) Fo ldo uts R
FP-3 / (FP-4 b lank) Fo ldo uts R
FP-5 / (FP-6 b lank) Fo ldo uts R
FP-7 / (FP-8 b lank) Fo ldo uts R
FP-9 / (FP-1 0 b lank) Fo ldo uts R
FP-1 1 / (FP-1 2 b lank) Fo ldo uts R
FP-1 3 / (FP-1 4 b lank) Fo ldo uts R
FP-1 5 / (FP-1 6 b lank) Fo ldo uts S
FP-1 7 / (FP-1 8 b lank) Fo ldo uts S
FP-1 9 / (FP-2 0 b lank) Fo ldo uts S
FP-2 1 / (FP-2 2 b lank) Fo ldo uts S
FP-2 3 / (FP-2 4 b lank) Fo ldo uts S
FP-2 5 / (FP-2 6 b lank) Fo ldo uts S
FP-2 7 / (FP-2 8 b lank) Fo ldo uts S
FP-2 9 / (FP-3 0 b lank) Fo ldo uts S
FP-3 1 / (FP-3 2 b lank) Fo ldo uts S
FP-3 3 / (FP-3 4 b lank) Fo ldo uts S
FP-3 5 / (FP-3 6 b lank) Fo ldo uts S
FP-3 7 / (FP-3 8 b lank) Fo ldo uts S
FP-3 9 / (FP-4 0 blank) Fo ldo uts S
FP-4 1 / (FP-4 2 blank) Fo ldo uts S
FP-4 3 / (FP-4 4 blank) Fo ldo uts S
FP-4 5 / (FP-4 6 blank) Fo ldo uts S
Inse rt Appe ndix A Type W J-8 7 1 Y/REF Re fe re nce G e ne rato r O ptio n (P/N 1 8 1 2 8 0 -0 0 1 )
Inse rt Appe ndix B Type W J-8 7 1 1 /PRE Subo ctave Pre se le c to r O ptio n (P/N 1 8 1 2 8 1 -0 0 1 )
Inse rt Appe ndix C W J-8 7 1 1 A/CO R Carrie r-O pe rate d Re lay O ptio n (P/N 1 8 1 2 8 2 -0 0 1 )
Inse rt Appe ndix D Type W J-8 7 1 0 /DS0 1 , W J-8 7 1 1 /DS0 1 , and
W J-8 7 1 2 /DS0 1 Dig ital Sig nal O utput O ptions (P/N 1 8 1 2 7 2 -0 0 1 )
Insert Appe ndix E W J-8 7 1 1 /4 8 8 and W J-8 7 1 2 /4 8 8 IEEE-4 8 8 Inte rfac e O ptio ns (P/N 1 8 1 2 8 3 -0 0 1 )
Inse rt Appe ndix F W J-8 7 1 Y/8 KRF 8 kHz Ro o fing Filte r O ption (P/N 1 8 1 2 8 4 -0 0 1 )
Inse rt Appe ndix H W J-8 7 1 Y/4 8 5 RS-4 8 5 Inte rfac e O ptio n (P/N 1 8 1 2 7 3 -0 0 1 )
Inse rt Appe ndix I Type W J-8 7 1 Y/SEU Spe e ch Enhance me nt Unit (P/N 1 8 1 2 7 4 -0 0 1 )
Inse rt Appe ndix JW J-8 7 1 Y/IFC1 2 5 1 2 .5 kHz IF O utput O ptio n (P/N 1 8 1 2 7 5 -0 0 1 )
Inse rt Appe ndix K Type W J-8 7 1 Y/FSK Fre que ncy Shift Ke ying O ptio n (P/N 1 8 1 4 0 1 -0 0 1 )
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W J-8711A DIGITAL HF RECEIVER
LIST OF EFFECTIVE PAGES vii
W J-8711A DIGITAL HF RECEIVER
REVISION RECORD
Revisio n Descriptio n Date
A Initial issue. 1 1 / 9 3
B Revised specificatio n related to IF bandwidth shape fac to rs. 1 2 / 9 3
C Pro vides additio nal info rmatio n in Sec tio n I co ncerning CO R, DSO 1 , 4 8 8 , 8 KRF, a nd
PCSM o ptio ns. Upda tes so ftwa re relea se histo ry. Adds Appendix C fo r
W J-8 7 1 1 A/ CO R o ptio n and Appendix G fo r W J-8 7 1 1 / PCSM o ptio n.
2 / 9 4
D Adds Appendix H fo r W J-8 7 1 Y/ 4 8 5 o ptio n. Update s Appendix G fo r W J-7 1 Y/ PCSM
o ptio n.
2 / 9 4
E Pro vides applica tio n info rmatio n fo r the Mute Input terminal (TB1 te rminal 1 2 ). 6 / 9 4
F Pro vides info rmatio n o n e nhancements to the AG C so ftware and o n the Synchro no us
AM (SAM) Dete ctio n Mo de. Do cuments upda ted Digital Assembly (A2 ).
4 / 9 5
G Upda ted manua l to re flect 8 7 1 Y C o ntro l Versio n 0 4 .0 1 .0 5 . Added info rmatio n a bo ut
use o f C I-V Level Co nverter when using CSMA Interface.
1 1 / 9 5
H Adde d info rmatio n req uiring the use o f a shielde d twisted pa ir ca ble with the C SMA
interface to ensure electro mag netic co mpa tibility with o ther devices. Adde d
Dec laratio n o f C o nfo rmity to IEC EMC sta nda rds. Also c o rrec ted errata . Bit 6 o f the
Event Summary Sta tus Re gister is no t used. It canno t be set to flag fro nt panel
para mete r chang es. Impro ved AG C atta ck time spec ifica tio n fro m 1 5 ms to 5 msec .
0 4 / 9 6
I Eliminated spe cifica tio ns re lated to enviro nmental test metho ds a nd vibratio n.
Eliminated W J-8 7 1 Y/ PC SM2 Perso nal Co mputer Signal Mo nito r O ptio n fro m list o f
availa ble o ptio ns. Adde d W J-8 7 1 Y/ PCSW freewa re pro g ram to the equipment
supplied list.
7 / 9 6
J Added W J pa rt number to the title pa ge. Inco rpo rate d a List o f Effec tive Pag es. Added
pag e numbers to section co ver pages and their ba ck pa ge s. Remo ved “ intentio nally
left bla nk” pag es a nd repla ces with “ N o te s” pa ge s that are fo rmatted with headers and
pag e numbers
9 / 9 7
K Inco rpo rated ECO 0 3 9 2 1 6 . 1 1 / 9 8
L Inco rpo ra ted ECO 0 3 9 1 2 0 . 5 / 9 9
M Inco rpo rated ECO 0 2 9 5 9 5 . 5 / 9 9
N Inco rpo rated ECO 0 3 9 6 7 4 . 6 / 9 9
P Inco rpo rated ECO 0 3 9 8 8 3 . 4 / 0 0
Q Inco rpo ra ted ECO 0 4 2 5 0 7 . 1 1 / 0 2
R Inco rpo ra ted ECO 0 4 4 3 9 1 . 1 / 0 4
S Inco rpo rated ECO 0 4 4 6 9 0 . 4 / 0 4
T Inco rpo ra ted ECO 0 4 5 0 8 4 . 7 / 0 4
U Inco rpo ra ted ECO 0 4 5 3 7 1 . 1 1 / 0 4
V Inco rpo ra ted ECO 0 4 6 2 8 5 . 0 9 / 0 5
W Inco rpo ra ted ECO 0 4 6 3 2 3 . 1 0 / 0 5
Y Inco rpo rated ECO 0 4 8 4 4 9 . In Tab le 1 -1 c ha ng ed Lo ca l O scillato r Phase N o ise fro m
-1 1 0 dBc to -1 0 3 dBc.
2 / 0 7
Z Inco rpo rated ECO 0 4 8 6 6 4 . Upda ted pa ra gra ph 2 .2 .5 and Figure 2 -4 . 3 / 0 7
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W J-8711A DIGITAL HF RECEIVER
viii DECLARATION O F CON FORM IITY
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W J-8711A DIGITAL HF RECEIVER
TABLE OF CO N TEN TS ix
TABLE OF CON TEN TS
W J-8711A DIGITAL HF RECEIVER
SECTION 1
GEN ERAL DESCRIPTIO N
Parag raph Page
1 .1 Electrica l Characteristics .................................................................................. 1-1
1 .2 Mechanica l Characteristics .............................................................................. 1-6
1 .3 Eq uipment Supplied......................................................................................... 1 -7
1 .4 Eq uipment Re quired But N o t Supplied ............................................................... 1-7
1 .5 Rec eiver O ptions............................................................................................. 1 -7
1 .5 .1 W J-8 7 1 Y/ REF Reference G e nerato r O ption ....................................................... 1 -7
1 .5 .2 W J-8 7 1 1 / PRE Sub octave Pre selec to r O ption...................................................... 1 -7
1 .5 .3 W J-8 7 1 1 A/ CO R Ca rrier-O perated Relay O ption............................................... 1 -7
1 .5 .4 W J-8 7 1 1 / DSO 1 Digita l Signal O utput Option................................................... 1 -8
1 .5 .5 W J-8 7 1 Y/ 4 8 8 IEEE-4 8 8 Interface O ption.......................................................... 1 -8
1 .5 .6 W J-8 7 1 Y/ 8 KRF 8 kHz Ro o fing Filter O ption ...................................................... 1 -8
1 .5 .7 W J-8 7 1 1 / SPK Internal Speaker O ption ............................................................. 1 -8
1 .5 .8 W J-8 7 1 1 / BFP Blank Fro nt Pa nel O ption............................................................ 1 -8
1 .5 .9 W J-8 7 1 Y/ 4 8 5 4 8 5 Interface O ption ................................................................ 1-8
1 .5 .1 0 W J-8 7 1 Y/ SEU Spee ch Enhancement Union ....................................................... 1 -9
1 .5 .1 1 W J-8 7 1 Y/ IFC 1 2 .5 kHz IF O utput O ption ......................................................... 1 -9
1 .5 .1 2 W J-8 7 1 Y/ FSK Fre quency Shift Keying O ption.................................................... 1 -9
1 .6 W J-8 7 1 1 So ftware Versio n Release History........................................................ 1 -9
1 .6 .1 W J-8 7 1 1 A Internal Co ntro l So ftware Release Histo ry .......................................... 1-9
1 .6 .2 W J-8 7 1 1 A Fro nt Pa nel Co ntro l So ftwa re Release Histo ry ..................................... 1 -1 1
1 .6 .3 W J-8 7 1 1 A DSP So ftware Release History .......................................................... 1 -1 2
SECTION 2
IN STALLATIO N
Parag raph Page
2 .1 Unpa cking and Inspectio n................................................................................ 2-1
2 .2 Insta llation...................................................................................................... 2 -1
2 .2 .1 Rac k Mo unting................................................................................................ 2 -1
2 .2 .2 Mo unting Fe ed fo r Tab le To p O peration............................................................ 2-3
2 .2 .3 Po wer Req uirements ........................................................................................ 2-4
2 .2 .4 Co nnec to r Signals........................................................................................... 2-4
RF IN , Antenna Input (A3 J1) .................................................................... 2 -5
SMO , Sig nal Mo nito r O utput (A3J2) ........................................................ 2 -5
EXT REF, External Reference Input (A3J3) .................................................. 2 -6
IF O UT, Po st-Filte re d IF O utput (A2J1) ....................................................... 2 -6
CSMA, Carrier Sense/ Multiple Access Po rt (A2J2)..................................... 2 -6
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W J-8711A DIGITAL HF RECEIVER
x TABLE OF CO N TEN TS
TABLE OF CON TEN TS (Continued)
SECTION II (Continued)
Parag raph Page
A2 J3 , RS-2 3 2 C Serial Interface Port......................................................... 2 -7
TB1 , Audio Terminal Blo c k (TB1) .............................................................. 2 -7
Line Audio O utputs (TB1 Terminals 1 thru 6) ..................................... 2 -7
Speaker O utput (TB1 Terminals 7 and 8).......................................... 2 -7
DC-Co uple d Audio O utput (TB1 Terminal 9) ..................................... 2 -8
Remo te Signal Streng th Indica to r O utput (TB1 Te rminal 1 0 ) ................ 2-8
Squelch O utput (TB1 Terminal 11)................................................... 2 -8
Mute Input (TB1 Terminal 12).......................................................... 2 -8
PO W ER, 9 0 -2 6 4 VAC Line Po wer Input (FL1 J1)......................................... 2-8
PHO N ES, Fro nt Pa nel Headpho nes Ja ck (A1J1)......................................... 2 -9
G ro und Stud .......................................................................................... 2-9
2 .2 .5 Co nfiguring the Rec eiver fo r Re mo te O perations................................................. 2 -9
2 .3 Eq uipment Malfunctio ns ................................................................................... 2-12
2 .4 Pre pa ra tio n fo r Reshipment o r Sto rage............................................................... 2-13
SECTION 3
LOCAL OPERATION
Parag raph Page
3 .1 Intro duction .................................................................................................... 3 -1
3 .2 Desc riptio n o f Co ntro ls, Indicato rs, and Displays ................................................ 3 -1
3 .2 .1 The Tuned Freq ue ncy Display ........................................................................... 3-2
3 .2 .2 The Tune Lo c k Ke y a nd Le d .............................................................................. 3-3
3 .2 .3 The
←(Left) and →(Rig ht) Arro w Keys.............................................................. 3 -3
3 .2 .4 The Tuning W heel........................................................................................... 3 -4
3 .2 .5 The
↑(Up) and ↓(Do wn) Arro w Keys................................................................ 3 -4
3 .2 .6 The N ume ric Entry Keys (0 -9 and Decimal Point)................................................. 3 -5
3 .2 .7 The kHz (Kilo hertz ) and MHz (Meg ahertz) Keys ................................................. 3 -7
3 .2 .8 The C E (Clea r Entry) Key.................................................................................. 3-7
3 .2 .9 The Step Tune Key........................................................................................... 3-7
3 .2 .1 0 The Auxiliary Pa ra meter Displays...................................................................... 3-7
3 .2 .1 1 The IF BW Key and Led ................................................................................... 3-8
3 .2 .1 2 The DET Mo de Key and Le d ............................................................................. 3-9
3 .2 .1 3 The Sq ue lch Key and Led ................................................................................. 3-9
3 .2 .1 4 The AG C Key and Led ..................................................................................... 3-9
3 .2 .1 5 The BFO Key and Led ...................................................................................... 3-10
3 .2 .1 6 The + / - Zero Key ............................................................................................ 3-10
3 .2 .1 7 The Blanker Key and Led.................................................................................. 3-11
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W J-8711A DIGITAL HF RECEIVER
TABLE OF CO N TEN TS xi
TABLE OF CON TEN TS (Continued)
SECTION 3 (Continued)
LOCAL OPERATION
Parag raph Page
3 .2 .1 8 The Special Functio n Ke y a nd Led ..................................................................... 3 -1 1
Selecting the Passband Tuning Mo de with the SPECIAL FUN CTIO N Key....... 3 -1 2
Sele cting the BITE Initializa tio n Mo de with the SPECIAL FUNCTIO N Key ...... 3 -1 3
Sele cting the Re mo te Co ntro l Selectio n Mo de
with the SPECIALFUNCTIO N Key............................................................ 3-13
Selecting the Remote Baud Rate Entry Mo de
with the SPECIALFUNCTIO N Key............................................................ 3-13
Selecting the CSMA Address Mo de with the SPECIAL FUN CTIO N Key......... 3 -1 4
Sele cting the IF Bandwidth Select Mo de
with the SPECIALFunctio n Key................................................................. 3-14
Displaying the Currently Selected Reference Frequency............................... 3 -1 5
Selecting the AG C Thresho ld Fe ature........................................................ 3 -1 5
Selecting the Variable AG C Decay Time Feature ....................................... 3 -1 6
3 .2 .1 9 The Auxiliary Pa ra meter Edit Knob .................................................................... 3 -1 7
3 .2 .2 0 The Memo ry/ Sca n Sec tio n Alphanumeric Display............................................... 3 -1 9
3 .2 .2 1 The Dwell Key and Led .................................................................................... 3-19
3 .2 .2 2 The Step Size Key and Led ............................................................................... 3-19
3 .2 .2 3 The C hannel View key and Led......................................................................... 3-20
3 .2 .2 4 The C hannel Exec ute Key a nd Led..................................................................... 3 -2 1
3 .2 .2 5 The Sc an Type Key and Leds ............................................................................ 3-21
3 .2 .2 6 The Sc an Setup Key and Led ............................................................................ 3-21
3 .2 .2 7 The Frequency Lo cko ut Ke y .............................................................................. 3-23
3 .2 .2 8 The Channel Sto re Key .................................................................................... 3-24
3 .2 .2 9 The Clear Key................................................................................................. 3 -2 4
3 .2 .3 0 The C hannel Include Key.................................................................................. 3-25
3 .2 .3 1 The Channel Skip Key...................................................................................... 3-25
3 .2 .3 2 The Sc an Key a nd Led ..................................................................................... 3-26
3 .2 .3 3 The Pause Key and Led .................................................................................... 3-26
3 .2 .3 4 The Memo ry/ Scan Pa ra meters Edit Knob ........................................................... 3 -2 7
3 .2 .3 5 The Pho nes O utput Vo lume Co ntro l Knob ........................................................... 3 -2 8
3 .2 .2 6 The Speake r Key and Leds ............................................................................... 3-28
3 .2 .3 7 The Speake r O utput Vo lume Co ntro l Knob ......................................................... 3 -2 8
3 .2 .3 8 The RF Input Key ............................................................................................. 3-29
3 .2 .3 9 The Manua l G a in C o ntro l Knob ........................................................................ 3 -2 9
3 .2 .4 0 The Sig nal Level Meter..................................................................................... 3-29
3 .2 .4 1 The Remote Key and Led .................................................................................. 3-30
3 .2 .4 2 The Po wer Switch............................................................................................ 3 -3 0
3 .3 Turning o n the Receiver.................................................................................... 3-30
3 .3 .1 Perfo rming a Co ld Sta rt a t Po we r-Up ................................................................. 3 -3 1
3 .4 Intro ductio n into Receiver O perations ................................................................ 3 -3 1
3 .5 O peration in the Manual Mo de ........................................................................ 3 -3 2
3 .5 .1 Ente ring the Tuned Frequency........................................................................... 3-33
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W J-8711A DIGITAL HF RECEIVER
xii TABLE OF CO N TEN TS
TABLE OF CON TEN TS (Continued)
SECTION III (Continued)
LOCAL OPERATION
Parag raph Page
3 .5 .2 Selecting a Detec tio n Mo de.............................................................................. 3-34
3 .5 .3 Selecting a n IF Bandwidth................................................................................ 3-36
Including an IF Bandwidth Filte r fo r Sele ction............................................. 3 -3 6
3 .5 .4 Setting the Squelch Level.................................................................................. 3-37
3 .5 .5 Attenuating o r Amplifying Input Sig nals Via the RF Input Path Selectio n ................. 3 -3 7
3 .5 .6 Selecting the G ain Co ntro l Mo de ...................................................................... 3 -3 8
3 .5 .7 Aiding C W Detec tio n with the BFO Function...................................................... 3 -3 8
3 .5 .8 Passband Tuning in CW Dete ctio n Mode........................................................... 3 -3 9
3 .5 .9 Blanking O ut N o ise Interference ....................................................................... 3 -3 9
3 .5 .1 0 Using the Tunable N o tc h Filter.......................................................................... 3 -4 0
3 .6 Sto ring Current Rec eiver Parameters in Memory ................................................. 3 -4 0
3 .7 Changing Rec eiver Para meters to Tho se Sto red in a Memo ry Channel .................. 3-42
3 .8 O peration in the Scan Mo de ............................................................................ 3-42
3 .8 .1 Using the Dwell Timer...................................................................................... 3-43
3 .8 .2 Sca n Setups.................................................................................................... 3 -4 3
CHANN ELScan Setup ............................................................................ 3-44
Fre quency-to -Freq uency (F1 →F2 ) Sc an Setup............................................. 3 -4 5
Fre quency-to -Fre quency with Lo c ko uts (F1 →F2 w/ Lo c k) Sca n Setup ............. 3 -4 6
3 .8 .3 Placing the Re ceiver in Scan Mode ................................................................... 3 -4 6
3 .8 .4 Pausing a nd Restarting Scans ........................................................................... 3-46
3 .9 Running the Built-In-Te st Functio n (BITE) .............................................................. 3 -4 7
3 .1 0 Displa ying the Re ceiver' s C urrent Internal Co ntro l So ftware Versio n...................... 3-49
3 .1 1 Setting Remo te O pera tio n Co nfig uratio ns fro m the Fro nt Pa nel ............................. 3-49
3 .1 1 .1 Selecting the RS-2 3 2 o r the CSMA Interfac e fo r Remo te O pera tio ns...................... 3-49
3 .1 1 .2 Selecting the Baud Rate fo r Re mo te O perations .................................................. 3 -5 0
3 .1 1 .3 Selecting the Rec eiver's Address fo r CSMA Re mo te O peratio ns............................ 3-50
SECTION IV
RS-232 REM OTE OPERATION
Parag raph Page
4 .1 Intro duction .................................................................................................... 4 -1
4 .2 Interfacing W ith the W J-8711A ........................................................................ 4 -2
4 .3 Co mmand Messag e Fo rmatting ........................................................................ 4-3
4 .3 .1 Terminato rs fo r Co mmands and Q ueries............................................................ 4 -3
4 .3 .2 Fo rmats o f Q uery Re spo nses............................................................................. 4-3
4 .3 .3 Repre sentatio ns o f N umeric Arg uments.............................................................. 4-4
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W J-8711A DIGITAL HF RECEIVER
TABLE OF CO N TEN TS xiii
TABLE OF CON TEN TS (Continued)
SECTION IV
RS-232 REM OTE OPERATION (Continued)
Parag raph Page
4 .4 Rec eiver Device Messag es ............................................................................... 4-5
4 .5 Co mmunica tio n Messages................................................................................ 4-16
4 .6 Rec eiver Status Summary ................................................................................. 4-20
4 .6 .1 Sta tus Bytes .................................................................................................... 4 -2 2
4 .6 .2 Event Summary Status Reg ister.......................................................................... 4 -2 2
4 .6 .3 Rec eiver Status Register ................................................................................... 4 -2 3
4 .6 .4 Device-Dependent Erro r Reg ister....................................................................... 4 -2 4
4 .7 Me ssag e Pro c essing ........................................................................................ 4 -2 5
4 .8 RS-2 3 2 C o mmunicatio ns Pro to col...................................................................... 4 -2 6
4 .8 .1 XO N / XO FF Protocol ....................................................................................... 4 -2 6
4 .8 .2 EN Q / ACK Protocol......................................................................................... 4 -2 7
4 .8 .3 Buffer Handling............................................................................................... 4 -2 7
Input Buffer............................................................................................ 4 -2 7
O utput Buffer......................................................................................... 4 -2 7
SECTION V
CSM A REM OTE CON TROL
Parag raph Page
5 .1 Intro duction .................................................................................................... 5 -1
5 .2 Co ntro lling Multiple Re ceivers Via the CSMA Interface ........................................ 5-1
5 .3 Setting Up the Rec eiver Fo r Remo te CSMA Interface............................................ 5-2
5 .4 Electrica l Req uirements o f the Inte rface .............................................................. 5-3
5 .5 Serial Data Tra nsmissio ns................................................................................. 5-4
5 .6 Co mmand Messag e Fo rmatting ........................................................................ 5-4
5 .7 Co ntro l Co des ................................................................................................ 5-5
5 .8 Deta ils o n Co mmand a nd Re spo nse Fo rmats ...................................................... 5 -7
5 .8 .1 Tuned Freq uency Co mmand W itho ut Ac kno wle dg e [0 0 ] ..................................... 5 -7
5 .8 .2 Tuned Freq uency Co mmand W ith Ac kno wle dg e [05].......................................... 5 -8
5 .8 .3 Respo nse To Tuned Freq uency Requests [03]...................................................... 5 -9
5 .8 .4 Respo nse To Tuned Freq uency Range Requests [0 2 ] ............................................ 5-9
5 .8 .5 Detectio n Mo de/ IF Bandwidth Co mmand W itho ut Ac kno wledg e [0 1 ] .................. 5-10
5 .8 .6 Detec tio n Mo de / IF Bandwidth C ommand W ith Ackno wledg e [0 6 ] ....................... 5-11
5 .8 .7 Respo nse To Detec tio n Mo de/ IF Bandwidth Requests [0 4 ] ................................... 5 -1 1
5 .8 .8 G ain C o ntro l Mo de Co mmand W ith Ackno wle dg e [3 1 ]...................................... 5-12
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W J-8711A DIGITAL HF RECEIVER
xiv TABLE OF CO N TEN TS
TABLE OF CON TEN TS (Continued)
SECTION V
CSM A REM OTE CON TROL (Continued)
Parag raph Page
5 .8 .9 Respo nse To G a in C o ntro l Mo de Req uests [30].................................................. 5 -1 3
5 .8 .1 0 Ma nual G ain Level Co mmand W ith Ac kno wle dg e [3 3 ]....................................... 5-13
5 .8 .1 1 Respo nse To Manual G a in Level Requests [32]................................................... 5 -1 4
5 .8 .1 2 BFO Freq ue ncy Co mmand W ith Ackno wledg e [35]............................................ 5 -1 4
5 .8 .1 3 Respo nse To BFO Freq uency Requests [34] ........................................................ 5 -1 5
5 .8 .1 4 RF Input Pa th Co mmand W ith Ac kno wle dg e [39] ............................................... 5 -1 5
5 .8 .1 5 Respo nse To RF Input Path Requests [38]............................................................ 5 -1 6
5 .8 .1 6 Device Co ntro l Mo de Co mma nd W ith Ackno wledg e [3 7 ] ................................... 5 -1 6
5 .8 .1 7 Respo nse To Device Co ntro l Mo de Req ue sts [3 6 ]................................................ 5-17
5 .9 Co llisio n Detectio n .......................................................................................... 5-18
SECTION VI
CIRCUIT DESCRIPTIO N
Parag raph Page
6 .1 W J-8 7 1 1 A Digita l HF Receiver Functio nal Descriptio n......................................... 6-1
6 .2 Circuit Descriptio ns ......................................................................................... 6-3
6 .2 .1 RF Assembly, (A3 ) ........................................................................................... 6-3
6 .2 .2 Digital Assembly, (A2 ) ..................................................................................... 6-8
6 .2 .3 Fro nt Panel Assembly (A1) ............................................................................... 6 -1 2
6 .2 .4 Po wer Supply Assembly, (PS1 ).......................................................................... 6-14
SECTION VII
M AIN TEN AN CE
Parag raph Page
7 .1 G eneral ......................................................................................................... 7 -1
7 .2 Preventive Maintenance Pro c edures .................................................................. 7-1
7 .2 .1 Cle aning a nd Lubrica tio n................................................................................. 7-1
7 .2 .2 Scheduled Preventive Maintenance Pro cedures................................................... 7 -1
7 .3 Inspec tio n fo r Damage and W ear..................................................................... 7-1
7 .4 Test Equipment Required .................................................................................. 7-2
7 .5 Tro ublesho o ting and Fa ult Iso la tion ................................................................... 7 -2
7 .6 W J-8 7 1 1 A Digita l HF Receiver Perfo rmance Tests............................................... 7 -2
7 .6 .1 Po wer Co nsumptio n ........................................................................................ 7-2
7 .6 .2 Fro nt Panel Tests ............................................................................................. 7-4
7 .6 .3 Reference Frequency Timebase Accuracy........................................................... 7-5
7 .6 .4 Fine Tuning Accuracy ...................................................................................... 7-7
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W J-8711A DIGITAL HF RECEIVER
TABLE OF CO N TEN TS xv
TABLE OF CON TEN TS (Continued)
SECTION VII (Continued)
M AIN TEN AN CE
Parag raph Page
7 .6 .5 Signal Streng th Accuracy ................................................................................. 7-8
7 .6 .6 W J-8 7 1 1 A Sensitivity Perfo rmance Test............................................................. 7 -9
7 .6 .7 Audio Disto rtio n Perfo rmance Test..................................................................... 7 -1 2
7 .6 .8 Squelch/ Mute Perfo rmance Test........................................................................ 7 -1 4
7 .6 .9 Rec onstructed IF O utput Perfo rmanc e Test .......................................................... 7 -1 5
7 .6 .1 0 RF/ IF Sig nal Path Perfo rmance Test................................................................... 7 -1 7
7 .7 Co rrec tive Maintenance Pro c edures .................................................................. 7 -1 8
7 .7 .1 Remo ving the Rece iver To p Co ver..................................................................... 7 -1 8
7 .7 .2 Replacing the Receiver To p Co ver..................................................................... 7 -1 9
7 .7 .3 Fro nt Panel Assembly (A1 ) Remo val Pro c edures.................................................. 7 -1 9
7 .7 .4 Fro nt Panel Assembly (A1 ) Replacement Pro c edures ............................................ 7-20
7 .7 .5 Fro nt Panel PC Assembly (A1 A1 ) Re mo val Pro cedure s......................................... 7-21
7 .7 .6 Fro nt Panel PC Assembly (A1 A1 ) Re pla cement Pro cedure s................................... 7 -2 1
7 .7 .7 Dig ita l Co ntro l PC Assembly (A2 ) Remo val Pro c edures ........................................ 7-23
7 .7 .8 Digital Co ntro l PC Assembly (A2 ) Replacement Pro cedures .................................. 7 -2 4
7 .7 .9 RF Tuner Assembly (A3 ) Remo val Pro c edures...................................................... 7 -2 5
7 .7 .1 0 RF Tuner Assembly (A3 ) Replac ement Pro c edures................................................ 7 -2 5
7 .7 .1 1 Po wer Supply Assembly (PS1 ) Remo val Pro c edures ............................................. 7 -2 6
7 .7 .1 2 Po wer Supply Assembly (PS1 ) Repla cement Pro c edures ....................................... 7-27
7 .7 .1 3 Filter/ Po wer (FL1 J1 ) Remo val Pro c edures ........................................................... 7 -2 8
7 .7 .1 4 Filter/ Po wer (FL1 J1 ) Replac ement Pro c edures ..................................................... 7 -2 8
7 .7 .1 5 Ram/ Battery (A2 U5 ) Re mo val/ Replace ment Pro cedure s ...................................... 7-29
SECTION VIII
REPLACEM EN T PARTS LIST
Parag raph Page
8 .1 Unit Numbering Metho d .................................................................................. 8-1
8 .2 Reference Designatio n Prefix ............................................................................ 8 -1
8 .3 Pro visio ning N o te – Inco nsistencies In Part Numbering Co nventio ns...................... 8-1
8 .4 List o f Ma nufacturers........................................................................................ 8-2
8 .5 Parts List......................................................................................................... 8 -2
8 .6 W J-8 7 1 1 A Digita l HF Receiver, Main Chassis.................................................... 8 -7
8 .6 .1 Type 4 8 2 1 0 8 -1 Fro nt Panel PC Assembly, A1A1 ............................................... 8 -8
8 .6 .2 A Type 7 9 7 2 1 4 -1 Digital Co ntro l PC Assembly, A2 ............................................... 8 -1 2
8 .6 .2 B Type 9 0 4 9 7 8 -1 Digital Co ntro l PC Assembly, A2 ............................................... 8 -3 1
8 .6 .3 Type 7 9 7 0 0 6 -1 RF Tuner PC Assembly, A3 ....................................................... 8 -5 1
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W J-8711A DIGITAL HF RECEIVER
xvi TABLE OF CO N TEN TS
TABLE OF CON TEN TS (Continued)
FOLDOUTS
Fo ldo ut Page
FO -1 W J-8 7 1 1 A Critical Dimensio ns Diag ram............................................................ FP-1
FO -2 Fro nt Panel Co ntro ls, Indicato rs and Display....................................................... FP-3
FO -3 Example o f a Channel Sc an O pera tio n (3 Sheets)............................................... FP-5
FO -4 Example o f a n F1 →F2 Sca n O peratio n with and witho ut Lo c ko uts (2 Sheets) ....... FP-1 1
FO -5 Type 7 9 7 0 0 6 -X RF Tuner Assembly (A3 ), Schematic
Diag ram 5 8 1 2 7 4 (3 Sheets) ............................................................................ FP-1 5
FO -6 Type 7 9 7 2 1 4 -1 Digital Co ntro l Assembly (A2 ), Sc hematic
Diag ram 5 8 1 8 3 9 (4 Sheets) ............................................................................ FP-2 1
FO -6 A Type 9 0 4 9 7 8 -1 Digital Co ntro l Assembly (A2 )
Schematic Diag ram 9 0 4 9 8 1 (4 Sheets) ............................................................. FP-2 9
FO -7 Type 4 8 2 1 0 8 -1 Fro nt Panel Circuit Ca rd Assembly (A2 A1 ),
Schematic Diag ram 5 8 1 2 6 7 (2 Sheets) ............................................................. FP-3 7
FO -8 Type W J-8 7 1 1 A Digita l HF Receiver, Main Chassis
Schematic 5 8 1 6 5 0 (3 Sheets) .......................................................................... FP-4 1
LIST OF TABLES
Table Pag e
1 -1 W J-8 7 1 1 A Digita l HF Receiver Specifications .................................................... 1 -2
2 -1 List o f C o nnec to rs ............................................................................................ 2-5
3 -1 Tunable N o tch Filter Range .............................................................................. 3-41
3 -2 BITE Erro r Codes............................................................................................. 3 -4 7
4 -1 Rec eiver Device Messag es ............................................................................... 4-5
4 -2 Co mmunica tio n Messages................................................................................ 4-16
4 -3 Sta tus Byte Reg ister, Bit Evaluation .................................................................... 4 -2 0
4 -4 Event Summary Sta tus Reg ister, Bit Evaluation..................................................... 4 -2 3
4 -5 Rec eiver Status Reg ister, Bit Evaluation .............................................................. 4 -2 4
4 -6 Device-Dependent Erro r Reg ister, Bit Evaluation.................................................. 4 -2 5
4 -7 Suppo rted RS-2 3 2 C Co mmunicatio ns Co ntro l Co mmands.................................... 4 -2 6
5 -1 CSMA Co ntro l Code ....................................................................................... 5 -6
6 -1 RF Data Co ntrol .............................................................................................. 6 -7
7 -1 Required Test Equipment.................................................................................. 7-3
7 -2 Rec eiver Sensitivity Perfo rmance Test Equipment Co nnectio n ................................ 7 -1 0
7 -3 Selected IF Bandwidth Frequency Range ............................................................ 7 -1 6
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W J-8711A DIGITAL HF RECEIVER
TABLE OF CO N TEN TS xvii
TABLE OF CON TEN TS (Continued)
LIST OF ILLUSTRATION S
Figure Page
1 -1 W J-8 7 1 1 A HF Receiver ................................................................................... 1-0
2 -1 Installatio n o f Jo nathan Type 1 1 0 Q D-1 6 -2 Slide Mo unts...................................... 2-2
2 -2 Installing the Mo unting Feet fo r Ta ble To p O pera tio n .......................................... 2-3
2 -3 W J-8 7 1 1 A Rear Panel ..................................................................................... 2-4
2 -4 Lo cating and Setting Co nfiguration DIP Switches A2 S1 and A2 S2........................ 2 -1 1
2 -5 Examples o f Set DIP Switc hes A2 S1 and A2S2................................................... 2 -1 2
4 -1 Rec eiver Status Data Structure........................................................................... 4-21
5 -1 Rec o mmended Co ntro ller Setup ........................................................................ 5-2
5 -2 Co mpo sitio n o f O ne Byte o f Serial Data ............................................................ 5-4
5 -3 Fo rmat o f Typica l Co mmand Message Packet..................................................... 5 -4
5 -4 Fo rmat o f ACK a nd NAK Messages .................................................................. 5-5
5 -5 Tuned Frequency Co mmand Fo rmat W itho ut Ac kno wledg e .................................. 5-8
5 -6 Tuned Frequency Co mmand Fo rmat W ith Ac kno wledge ...................................... 5 -8
5 -7 Tuned Freq ue ncy Request Re spo nse Fo rmat........................................................ 5 -9
5 -8 Tuned Freq ue ncy Range Re quest Re spo nse Format.............................................. 5 -1 0
5 -9 Dete ctio n Mo de / IF Ba ndwidth Co mma nd Fo rmat W itho ut Ackno wledg e ............... 5 -1 0
5 -1 0 Detectio n Mo de/ IF Bandwidth Co mmand Fo rmat W ith Ac kno wledg e ................... 5-11
5 -1 1 Detectio n Mo de/ IF Bandwidth Re quest Respo nse Fo rmat..................................... 5 -1 2
5 -1 2 G ain Co ntro l Mo de Co mmand Fo rmat .............................................................. 5-12
5 -1 3 G ain Co ntro l Mo de Req ue st Fo rmat.................................................................. 5-13
5 -1 4 Manua l G ain Level C o mmand Fo rmat ............................................................... 5-13
5 -1 5 Manua l G ain Level Re quest Fo rmat ................................................................... 5 -1 4
5 -1 6 BFO Freq ue ncy Co mmand Fo rmat..................................................................... 5 -1 4
5 -1 7 BFO Freq ue ncy Request Respo nse Fo rmat.......................................................... 5 -1 5
5 -1 8 RF Input Path Co mmand Fo rmat........................................................................ 5 -1 6
5 -1 9 RF Input Path Request Re spo nse Fo rmat.............................................................. 5-16
5 -2 0 Device Co ntro l Mo de Co mmand Fo rmat............................................................ 5-17
5 -2 1 Device Co ntro l Mo de Req uest Respo nse Format.................................................. 5 -1 7
5 -2 2 Jammer Co de ................................................................................................. 5-18
6 -1 Digital HF Rec eiver Functio nal Blo ck Diagram .................................................... 6 -0
6 -2 RF Assembly Blo c k Diag ra m ............................................................................. 6-4
6 -3 Digital Assembly Functio nal Blo ck Diagram........................................................ 6 -9
6 -4 Fro nt Pa nel Assembly Functio nal Blo ck Diagram ................................................. 6 -1 3
7 -1 Po wer Co nsumptio n Perfo rmance Test Equipment Co nnec tio n............................... 7-3
7 -2 Fro nt Panel Test Equipment Co nnections............................................................. 7 -4
7 -3 Reference Freq uency Timeba se Acc uracy
Perfo rmance Test Equipment Co nnec tion............................................................ 7-6
7 -4 Fine Tuning Acc urac y Perfo rmance Test Equipment Co nnec tio n ............................ 7 -7
7 -5 Rec eiver Sensitivity Perfo rmance Test Equipment Co nnectio n ................................ 7-9
7 -6 Audio Disto rtio n Perfo rmance Test Equipment Co nnec tio n .................................... 7 -1 2
7 -7 Squelch/ Mute Pe rfo rmance Test Equipment Co nnectio n....................................... 7-14
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W J-8711A DIGITAL HF RECEIVER
xviii TABLE OF CO N TEN TS
TABLE OF CON TEN TS (Continued)
LIST OF ILLUSTRATION S
Figure Page
7 -8 Rec o nstructe d IF O utput Perfo rmance Test Equipment Co nnectio n ......................... 7-15
7 -9 RF/ IF Sig nal Pa th Perfo rmance Test Equipment Co nnec tio n .................................. 7 -1 7
7 -1 0 Remo ving/ Replacing Re ceiver To p Co ver .......................................................... 7 -1 9
7 -1 1 Fro nt Panel Assembly (A1 ) Remo ve and Repla ce Pro c edures (Part 1 ) ..................... 7 -2 0
7 -1 2 Fro nt Panel Assembly (A1 ) Remo ve and Repla ce Pro c edures (Part 2 ) ..................... 7 -2 1
7 -1 3 Fro nt Pa nel PC Assembly (A1 A1 ) Remo ve a nd Repla ce Pro c edures (Part 1 ) ........... 7 -2 2
7 -1 4 Fro nt Pa nel PC Assembly (A1 A1 ) Remo ve a nd Repla ce Pro c edures (Part 2 ) ........... 7 -2 2
7 -1 5 Dig ital C o ntro l PC Assembly (A2 ) Remo ve and Replace Pro cedures (Part 1 ) ........... 7 -2 4
7 -1 6 Dig ital C o ntro l PC Assembly (A2 ) Remo ve and Replace Pro cedures (Part 2 ) ........... 7 -2 4
7 -1 7 RF Tuner Assembly (A3 ) Remo ve and Re pla ce Pro c edures (Pa rt 1 ) ........................ 7-25
7 -1 8 RF Tuner Assembly (A3 ) Remo ve and Re pla ce Pro c edures (Pa rt 2 ) ........................ 7-26
7 -1 9 Po wer Supply (PS1 ) Remove a nd Replace Pro cedure s (Part 1 ) .............................. 7 -2 7
7 -2 0 Po wer Supply (PS1 ) Remove a nd Replace Pro cedure s (Pa rt 2 ) .............................. 7 -2 7
7 -2 1 Filte r/ Po wer (FL1 J1 ) Remo val a nd Re pla cement Pro c edures (Pa rt 1 ) ...................... 7-28
7 -2 2 Filte r/ Po wer (FL1 J1 ) Remo val a nd Re pla cement Pro c edures (Pa rt 2 ) ...................... 7-29
7 -2 3 RAM/ BATTERY (U5 ) Remo val and Replacement Pro cedure s ................................. 7 -3 0
8 -1 W J-8 7 1 1 A Main Chassis Co mpo nent Lo c ations.................................................. 8 -6
LIST OF APPEN DICES
Appendix A Type W J-8 7 1 Y/ REF Reference G enerato r O ptio n (P/ N 1 8 1 2 8 0 -0 0 1 )
Appendix B Type W J-8 7 1 1 / PRE Subo ctave Preselecto r O ptio n (P/ N 1 8 1 2 8 1 -0 0 1 )
Appendix C W J-8 7 1 1 A/ CO R Ca rrier-O pera ted Re la y O ptio n (P/ N 1 8 1 2 8 2 -0 0 1 )
Appendix D Type W J-8 7 1 0 / DS0 1 , W J-8 7 1 1 / DS0 1 , a nd W J-8 7 1 2 / DS0 1 Digita l Signal
O utput O ptio ns (P/ N 1 8 1 2 7 2 -0 0 1 )
Appendix E W J-8 7 1 1 / 4 8 8 and W J-8 7 1 2 / 4 8 8 IEEE-4 8 8 Interface O ptio ns (P/ N 1 8 1 2 8 3 -0 0 1 )
Appendix F W J-8 7 1 Y/ 8 KRF 8 kHz Ro o fing Filter O ptio n (P/ N 1 8 1 2 8 4 -0 0 1 )
Appendix G Future Use
Appendix H W J-8 7 1 Y/ 4 8 5 RS-4 8 5 Interfac e O ptio n (P/ N 1 8 1 2 7 3 -0 0 1 )
Appendix I Type W J-8 7 1 Y/ SEU Speech Enhancement Unit (P/ N 1 8 1 2 7 4 -0 0 1 )
Appendix J W J-8 7 1 Y/ IFC1 2 5 1 2 .5 kHz IF O utput O ptio n (P/ N 1 8 1 2 7 5 -0 0 1 )
Appendix K Type W J-8 7 1 Y/ FSK Freq uency Shift Keying O ptio n (P/ N 1 8 1 4 0 1 -0 0 1 )
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