EIP 545A User manual

Artisan Technology Group is your source for quality
new and certied-used/pre-owned equipment
• FAST SHIPPING AND
DELIVERY
• TENS OF THOUSANDS OF
IN-STOCK ITEMS
• EQUIPMENT DEMOS
• HUNDREDS OF
MANUFACTURERS
SUPPORTED
• LEASING/MONTHLY
RENTALS
• ITAR CERTIFIED
SECURE ASSET SOLUTIONS
SERVICE CENTER REPAIRS
Experienced engineers and technicians on staff
at our full-service, in-house repair center
WE BUY USED EQUIPMENT
Sell your excess, underutilized, and idle used equipment
We also offer credit for buy-backs and trade-ins
www.artisantg.com/WeBuyEquipment
REMOTE INSPECTION
Remotely inspect equipment before purchasing with
our interactive website at www.instraview.com
LOOKING FOR MORE INFORMATION?
Visit us on the web at www.artisantg.com for more
information on price quotations, drivers, technical
specications, manuals, and documentation
Contact us: (888) 88-SOURCE | [e-mail] | www.artisantg.com
SM
View
Instra

Models 545A & 548A
Microwave Frequency Counters
EIP Microwave, I nc.
2731 North First Strtttlt, Slln Jose. CA 95134
Manual Part Number 5580033-00
Printed in U.S. A. November 1987
TEL: [phone]
TWX: 910-338-0155
545A. CCN 2209
548A. CCN 2309
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

5580033
Printing History
New editions incorporate all update material since the previous edition. The date on the
title page changes only when a neVv edition is published. If minor corrections and updates
are incorporated, the manual is reprinted but the date and edition number on the title page
do not change.
FIRST EDITION .................... April, 1981
SECOND EDITION .................. April, 1983
THIRD
EDITION.... . . . . . . . . . . . . . . August 1985
FOURTH EDITION .......... . .... . . August 1986
FIFTH EDITION . . . .. ... . . .. . .... . .. . October 1986
SIXTH EDITION • ....•..... . ....•. ... January 1987
SEVENTH
EDITION ......... . .....••. June 1987
EIGHTH
EDITION ................... November 1987
IIi
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

5580 0 33
Certification
EIP Microwave certifies that this instrument was thoroughly inspected and tested, and
found
to be in conformance with the specifications noted herein at time of shipment from
factory .
Warranty
EIP Microwave warrants this counter to be free from defects in material and workmanship
for one year from the date of delivery. Damage due to accident, abuse , or improper signal
level,
is not covered by the warranty. Removal, defaceme nt , or alteration, of any serial or
inspection label, marking, or seal , may void the warranty. EIP Microwave will repair or
replace at its option , a ny components of this counter which prove to be defective during the
warranty period, provided the entire co
unt er is returned PREPAID to EIP or an authorized
service facility. In-warranty counters
will be returned freight prepaid; out - of -warranty units
will be returned freight COLLECT. No other warra nt y other than the above warranty is
expressed or implied.
IV
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

5580033
Table of Contents
PAGE PAGE
Sectio n 1, Gener al Infor matio n Sec tion 6, Tr oubl es h oo ting
DescriiJtion .......................... 1-1 Signature Ana lysis . . . . ... . ...... . ...... 6-1
Specifications ........ . ............... 1-2
Free Running ...................... 6·1
Program Controlled .... . ... . ...... . . . 6-3
Section 2, Insta ll at ion
Se lf Diagnosti cs .. . .. .... . . ... ...... ... 6·3
Safety .................................. 2·1
Keyboard Cont r olled Circuit Tests .... .. .. . .. 6-4
I nstallation .......................... 2-2 Tests
.... . ......................... 6-6
Counter I dentification ................ . .. 2·2 Significant Addresses, 1/0 Ports . . . . . . . . . . . . 6-8
Shipping
and Storage . ................... 2·2 Signif
icant Addresses, RAM .... ...... . . . . 6-10
Performan ce Checkout Pr oce dure ...... . .... 2-2 Troub l eshooting Tre es .......... . ... .. .. 6-11
Section 3, Ope r ation
Test Equipment Requir ed ... . ..... ...... 6-11
Front Panel Contro ls an d I ndicators ...... . ... 3- 1
Display . . . . . . . . . . . . . . . . . . . . . . . . . . 3·1
Sec ti on 7, A dj us tm enu a nd Cali br ations
Operating Status .................... 3-2 Gener
al . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7·1
Power Meter/DAC Option ..... . ....... 3-2 Power
Supp ly Adju st ments ......... . ... .. . 7·1
Signal I
nput . .. ... .. .. .. .... . ...... 3-3
Rear Panel Controls
and Connectors .. ... . ... . 3-4
YIG DAC Calibration Process .............. . .. 7-3
YIG DAC
Correction Table .... .. . . .... ... . 7-3
Tim e Ba se Calibration .. .. . . .. . . . ....... . 7-5
Keyb oard ........................ _ .. 3-5
Units . . .... ................. . ... 3-5
Clear (Dat a/ Display) .............. .. . 3-5
T emperature Compe n sated Crystal
Osc
ill ator (TCXO) ..................... 7-5
TCXO Calibration . . . . . . . . . . . . . . . . . . . . . 7-6
B and Selection . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Displ ay I ntensity ...... . ......... ..... . 7-6
Resolut ion/Gate Time Selection ............ 3-7
Display and Data Entry Sequence ..... . ..... 3-8 S
ec ti on 8, Perf or mance Tests
Mu ltiply Function . .................... 3-9
Gen eral . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8·1
Fr equency Limits ............. . . . ..... 3-10 Variable
Li ne Voltage ... ... ........... .. 8·1
Test Selection ....................... 3- 11
Set-Up f or Basic FrequencY"Measurement . . . . . 3- 13
Frequ ency Offsets .................... 3· 13
Required Te st Equipment ....... . . .. ....• 8-1
Band 1
....... . ................... .. 8·1
Band 2 .. . ..... .. ......... . ... .... .. 8-2
Band 3 8·2
Display Er
ror Messages ..... . ..... ...... 3-14
Secti on 4, Theory of Oper atio n Section 9,
Funct io nal Description and
Illus tr ate d Part s Br eak do wn .... . ..... .. ..... 9·1
General
.. . .... .. .......... . .. .. .... . 4·1 Ref
erence Des ig nations and Abbreviati ons ..... . 9· 1
Basic Counte r ... . .................... 4 -L
Asse mb ly L ocations and Cab le Connections .. . .. 9·2
Band 2 Converter . ...... . ............ . . 4-2
Band 3 Converter . . . . . . . . . . . . . . . . . . . . . . 4·7
545A /5 48A Mi crowave Counter T op Assembly
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3
Converter Con tr ol A1 08 ............... 4-7
545 /5 48 Overall Block Di agram ............. 9-5
Convert er A203 . . .................. 4-7
Operation ............... . ... . .... 4 ·9
A1 00 Co u nter In t ercon n ect . . . . . . . . . . . . . 1 00 ·1
Section 5. Main te n ance a nd Se rvi ce
A101 Power Supply ..... ... ......... . 101-1
Maintenance .... .... . ............. ... .. ... 5·1 A1
05 Mic roproc essor . . . . . . . . . . . . . . . . . 1 05 ·1
Fuse Replacement .............. .. .... . ... 5- 1
Periodic Maintenance ...................... 5-1
Serv1ce . . . . . . . . . . . . . . . . . . . . . . . . . . . .
..... 5·2
Disassembly Repair, Replacement and
Reassembly by Assembly .............. . .. 5·2
Factory .. ......... .. ... .. ..... .. .. .... . 5-7
Field
... ... ...... . ........... ...... ... 5-8
v
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

5580033
Table of contents, continued
Section 9, (Continued)
A106 Count Chain
PAGE
106-1
A107 Gate Generator . . . . . . . . . . . . . . . . . 107-1
A1 08 Converter Control . . . . . . . . . . . . . . . 108 -1
A109 Band 2 Converter . . . . . . . . . . . . . . . . 1 09 ·1
A1 10 Front Panel Display and Keyboard . . . . 1 10 -1
A111 Front Panel Logic . .. . ............ 111·1
A203 Microwave Converter ............. 203-1
Section
10, Options
Option 01, Digital- to -Analog Converter (DAC) 01 ·1
Specifications . ....... .... ...... 01·1
Operation .............. .. .. .. . 01·1
Theory of Operation . .... .. .. . .... 01 -2
Calibration
........... ...... . .. 01·6
Troubleshooting ............... . . 01-7
DAC Signatures .
.. ... ........... 01-8
Parts List
.... .. ... ..... ... .. .. 01 ·9
Option 02, Power Measurement ............. . 02 -1
Specifications . . . . . . . . . . . . . . . . . . 02 -1
Operation . . . . . . . . . . . . . . . . . . . . . 02 ·1
Theory of Operation .......... .... 02 ·2
Calibration ..... , ........ .. .... 02 ·6
Option 03, Time Base Oscillators ...... . ... 03 /4/5· 1
04,
05 Oven Oscillator Power Supply . . . . . 03 /4/5-3
Oven Oscillator Calibration ....... 03 /4 /5-4
Option 06, Extended Freque n cy Capabi li ty ... . .. 06 -1
Specifications . . . . . . . . . . . . . . . . . . 06 -1
Op eration .... . .... ..... .... . . . 06 -1
Theory of Operation -Hardware .. .. .. 06 -2
Theory of Operation- Software .... .. 06 -3
Locking Process ... , . . . . . . . . . . . . . . . . 06·3
Initialization . . . . . . . . . . . . . . . . . . . 06-3
VCO Sweep . . . . . . . . . . . . . . . . . . . . 06 -3
Centering
... . . .... , . . . . . . • . . . . 06-4
Performance Tests
.......... .. .. . 06-6
Option 07, Remote Programming /BeD Output .... 07 -1
Specifications . . . . . . . . . . . . . . . . . . 07 -1
Operation .. . ................•. 07 ·1
BCD Output ... ..... ........ . 0 7-1
Re mote Programming . . . ...... .. 07 -2
Control Line Functions . . . . . . . . . 07 -2
Data Line Functions ... ...... .. 07 -2
Program Line
Functions . . . . . . . . . 07 -3
VI
PAGE
Section 10, (Continued)
Data Entry . . . . . . . . . . . . . . . . . . . . 07-4
Data Examples . . . . . . . . . . . . . . . . . . 07 -4
Remote Programming Pin Conn ec ti ons .. 07 -5
Theory of Operation . . . . . . . . . . . . . . 07 -6
Part s List . . . . . . . . . . . . . . . . . . . . . 07 -9
Option 08 , General Purpose Int erface Bus (GPIB) .•. 08 -1
GPIB
Funct i ons Im ple me nted .... . .... 08-1
Setting Add re ss Switch . .... .. ...... 08 ·1
Device Dependent Data In put ..... ... . 08 ·2
GPIB
Instruction Format . .... .. ... .. 08-2
Formal Definition of In structions . . . . .. 08 -3
Program
Code Set . . . . . . . . . . . . . . . . . 08 -4
Available Commands . . . . . . . • . . . . . . • 08 -6
Data Output Format .... .. .... . . , . 00· 10
Program Examples ....... • . .. ••... 08-1 1
Reading Measur
ement .... . ...•.. ... 08 · 12
Allowable Address Codes .. . .. .... • . . 08 - 13
Parts List ................•.•... 0 8· 15
Option 09, Rear I nput . . . . . . . . . . . . . . . . . . . . 09-1
010, Chassis Slides .... ... . . ......... 010-1
Op ti on 13, Mate -C IIL Interface . ................ 013 -1
Option 14, 0.1 Hz Resolut io n . ..... . .•. ........ 014-1
Appendix A, Accessories . ... . ...... .. . ...... A· 1
Furnished Accessories
..... .... . ...... . .. • A·1
Pur chased Accessories . ... ..... ...... .... . A-1
Remote Sen so r Option .... ... . . . ... . . • .... A·1
Service Kit ....• . ... . ...... .. ..... .. A -2
Appendix B. List of Ma nuf actu rers .... . ... ...... .. B-1
Appendix C, Memory Address Ch
anges. . . . . . . . . . . . . C1
New Error Messages. . . . . . . . . . . . . . . . . . . . . . . . C2
Oth er New Features . . . . . . . . . . . . . . . . . . . . . . C2
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

5580033
Figure Numb er
Page
3-1
3-2
3-3
3-4
4-1
4-2
4-3
4-4
4-5
4-6
4-7
4-8
4-9
4-10
4-11
5-1
6-1
6-2
6-3
6-4
6-5
6-6
6-7
6-8
6-9
6- 10
6-11
6- 12
6-13
6-
14
Front Panel, Model 545A . . .. ...... . . 3-1
Front Panel, Model 548A ............ 3-3
Rear Panel . .. ................... 3-4
Keyboa rd .... ....... .. .. ...... . 3-5
Cou nter Blo ck Diagram, Simplified .. . .. 4-1
Band 2 Converter Block Diagram,
Simplified
............. . ....... 4-3
Band 2 Converter Operation ...... .... 4-4
Band 2 Operating Ranges ............ 4-5
Band 3 Conve rter , Simplified . . .. .... . 4-6
Band 3 Operation, Simplified .. ....... 4-8
Band3SearchforSignal ........... 4- 10
Determin e Largest Signal .. . .... ... . 4-11
YIG Centering . .. ..... .. ........ 4-12
Calculate N and VCO Frequ ency ...... 4-13
Band 3 Signal Tracking .. .......... 4- 14
Cou n ter Assemb ly Locations 5-9
Microprocessor
Free Running Si gnatures . . 6-2
Self Diagnostic Error In dications ....... 6-3
Keyboard Configuration for Tests Requiring
H exadecima l In put s .... ... ... . ... 6-4
Keyboard Test Signatures . .. ... .. .. . . 6-5
Converter Ramp Test Signa tu res ...... . 6-6
1/0 Addresses . . . . . . . . . . . . . . . . . . 6-8
RAM Fr
eq u ency Storage .. ... ...... 6- 10
RAM Power Storage ... . ......... . 6-10
Troubleshooting Test Equip . Required .. 6- 11
Main Troubl es hooting Tr ee .......... 6-12
Program In operative ... ........... 6-13
Keyboard
.. . . .... ............. 6- 14
Band 1 . . . . . . . . . . . . . . . . . . . . . . . 6-15
200 MHz Test .. ...... .......... 6-16
6- 15 Band2 .......... ....•... ... . . 6- 16
6- 16 Band 3 .................... . .. 6-17
6- 17 Power M eter & P owe r Meter Zero DAC . . 6- 20
7-1 Adjustment L oca tions . ...... .. .... 7-2
7 ·2 IF S1g nal . . . . . . . . . • . ....•...... 7-4
9-1 Assembly L
ocations/Cable Connect i ons .. . . 9-2
9-2 545 / 548 Bl ock Diagr am ........ . ....... 9·5
100 -1 Co u nter Interconnect
Component L ocator . . . . . . . . . . 100-4
1
00 -2 Counte r- Int erconnect Sc h ema ti c .. . .... 100 -5
101 -1
101-2
101 -3
Power Supply Block D1agram ..... .
Pow er Su pply Co mponent Locator ..
P owe r Su pply Sche matiC ...... . . .
101-1
101·4
101·5
vi i
F
ig ur e
10 5-1
10 5-2
10 5-:J
10 6-1
10 6-2
106-3
107-1
10 7-2
10 7-3
10 7-4
108-1
108 -2
108-3
108 -4
,
0-1
110-2
111-1
111-2
11 1-3
111-4
203-1
List of Illustrations
Page
Micr oprocessor Block Diagram . . . . . 105·2
Mi cr oprocessor Component L ocator. . 1 05 ·5
Mi cr oprocesso r Schematic ........ 10 5 ·7
Coun t Chain Block Diagram . . • • • . . 10 6·2
Count Chain Component L oca tor . . . 1 06 ·6
Co
unt Chain Sc hem atiC . . . . . • . • . • 106-7
G ate Generator Timin g Diagram . . ..
G ate Generator Block Diagram ...•.
Gate Generator Component Locat or
Gat e Generator Schematic ...•. •..
Conv erte r Control Block Diag ram .••
Pro g ram mab le Frequ enc y
Div
ider Diagram .. •. •......•.
Conve rter Co nt rol Componen t Lo cator
Conv erter Control Schematic . , •• •.
10 7-3
10 7-4
10 7-8
10 7-9
108 ·1
10 8·2
10 8-8
10 8·9
Ba nd 2 Converter Blo ck Diagram .... 10 9-4
Band 2 Converter Componen t L oca tor 1 09 - 10
Band 2 Converter Schema t iC . . • . . . 1 09 - 11
Fr on t Panel Display and
Keyboard Component Locator . . • 1 10 -4
Front Pane l Display
and Keyboa rd Schematic . . . . • . 110·5
Memory U pdate Mode Sequence . ... 11 1 ·2
Fr on t Panel logic Block Diagram ... 11 1·3
Front Panel Logic Compo n en t Locator 111-6
Fr on t Panel Logic Schematic . • . . . . 111·7
B
and 3 Microwave Converter
Bl oc k Di agram . • . . . . . . • . • • • 203 ·2
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

5580033
List of Illustrations, continued
Figure
)1 - 1.
)1 -2.
01 -3.
01
-4.
01 -5.
J2 - 1.
J2-2.
J2-
3.
J2-4.
)3
/4/5 -1.
)3/4/5-
2.
)3 /4 /5 -3.
)3/4/5-4.
P age
DAC B oa rd , Simplified
01 -2
Keyboard Con tro l .. .......... _ ... 01 -4
DAC Board Update ............... 01-5
DAC Component Lo ca tor ......... 01 -10
DAC Schematic ................ 01 -11
Power Meter Hardware . . . . . . . . . . . . 02-3
Power Met er Task .. .. ......... . . _ 02 -3
Gate Generator Component Loc ator .. _. 02·10
Gate Gen erator Schematic .. ..... _ ... 02- 11
Time Base Oscillator Option
Spec ifi ca ti o ns .............. 03/4 /5 -1
Component Location, Tim e Base
Opt io n . . . . . . . . . .. . . . . . . . . . 03/ 4/5 -2
Tim e Base Option, Interconnection
D iag ram ............. . . ... 03/4 /5 -2
Oven Oscillator Power S upply (A 112)
Component Lo
ca tion . . . . . . . . . 03/4 /5 -3
)
3/ 4/5-5. Time Base Calibration ..... .. .. . 03/4 /5 ·4
!3 /4 /5 -6. Tim e Base Option Sche mat ic . . . . . 03/4/5 -6
Figur e
06-1.
06· 2.
07-1.
07-
2.
07 -3.
07-4.
OB -1.
- 08 -2.
08-3.
08-4.
010 -1.
v ii i
Frequency Extension Block Diagram
Locat
io n of Installed Band 4
Converter
••• •••• • ••••• 0 •• • •••
Page
06-2
06 -7
Data Entry Ti ming .......... . ... . 07-4
Remote Programming/BCD Block
D'
1agram . . .......• . ....... • ..
07-7
Remote Programming/ Be D Component
Lo ca tor .. ... .... .. ........ .
Remote Programming/
BeD
Schematic ... . ........... _ .. .
Allowab le Address Codes . . ..... .. .
Locati on of GP IB in Counter ...... .
GP IB Component Locator .... . ... .
GPIB Sc hematic . . .. ... . . ...... .
Side V ie w of Counter with Option 10
07-10
07-
11
08-13
08 ·14
08-16
08-17
Installed . .. .. . ......... . .. .. 010 -1
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

5580021
DESCRIPTION
Section 1
General Information
The 54XA series counters are microprocessor- based heterodyne instruments. The 545A and 5 48A span the
frequency
range fr om 10 Hz to 18 GHz and 10 Hz to 26.5 GHz. respec tively. The model 548A, when
equ
ipp ed with frequency extension capab ility (Option 06). is u sed in conju nct ion with a remote se n sor
( See Model 590) to measure up to 110 GHz.
Using keyboard control, the 54
XA series co unt ers provide fr equency offsets and frequency se lectivi ty .
Options include Power M easu r eme nt , full Systems capability via GPIB or BCD/Remote Programming
and
D/A Converter output.
Full fr equency range is covered in three b ands. Ban d 1 is a high impedance i nput (1 M oh m/20 pF). and
spans a 10 Hz to 100 MHz ran ge, with a sensi tivity of 25 mV RM S. Band 2 h as an input impedance of
50 ohm s, a 10 MHz to 1 GHz range, with a sensitivity of - 20 dBm. Band 3 has an input impedan ce of
50 ohms n om in al ove r a range of 1 GHz to 18 ( or 26.5) GHz, and asensitiv ity to -30 dBm. For frequencies
above 26.5 GHz a
re mot e se nsor, wi th an appropriate waveguide input, is ca ll ed Band 4.
M easu rem en ts are presented on a 12 digit L ED display th at is sec tionalized to read GHz, MH z, kHz, and
H
z. Wh en th e op ti onal power meas ur ement functio n is activated, the digits on th e far right display po wer
in dBm with .1 dB r esol uti on, and frequency resolution is li mit ed to 1 00kHz.
1·1
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

5580033
SPECIFICATIONS
BAND 1
RAN GE 10H z tO 1 00 MH1
--
SENS ITI VITY 25 mV rms
I MPEDANCE 1 M n / ~0 pF
CONNECTOR
BNC !fema le)
MAX . INPUT LEVEL
1 20 V rms •
DAMAGE LEVEL 150 V rms
.
.
(Above 1 KHz max . onput will decrease at 6
dB/ octave
down to 3.0 V rms . )
BAND 2
RANGE
10 MH z to 1 GHz
SE NS ITIVIT Y · 20 dBm
DYNA M IC RA N GE 30 dB
IMP EDANCE SOn N omi nal
CO NNECTOR BNC (f e mal ~)
MAX INPUT LEVEL +10dBm
DA M AGE LEV EL +27 dBm
ACOU IS ITION TIME
< 50 m sec
BAND 3
RANGE 1 GHz to 18 G Hz I26 .S GHz for model 54 8AI
--
SENSI TIV I TY
-30dBm : 1.0GHz to 1 2.4 GHz
-20 dBm : 18 GHz to 22 GHz
-2S
dBm : 12.4 GHz to 1B GHz
- 15 dBm : 22 GHz 10 26.5 GHz
DY N AMIC RANGE
1 G Hz 10 12.4 GHz, 37 dB 18 GH1
to 22 GHz, 27 dB
12.4 GHz to 18 G Hz, 32 dB 22 GHz to 26.S GHz, 22 dB
~DANCE
SOH No;;:;· inal
-------
---
CONNEC T OR
M odo ! S45A · Precoso on t yp e N, (female )
M
ode l 548A · AP C • 3.S (f emale)
----
--
M AX . INPUT LEVEL
+7 dBm
f[)AMAGE L EVE L S W
atts (+ 37 dBm l
ACQUISITION TIM E -
250 msec I ndependent of f requency
AUTO AMPLITUDE
IAu t oma t oc amplitude doscromma11on of tw o
DISCR
IMINATI ON
f req uen c1es l 10 dB
f---'-=" -
FM M ODU LA TI ON 20 MHz P Pup to 10 MH z rat e
VSWR < 2 5 1 lVPICal
FREQUENCY LIMIT Keyboa rd con to ol of d es ored lorn1ts ( standard ). Co u nte r
will measure largest s1gnal woth 1n prog r ammed l1mots
Sognal O
UtS1d e o per at ong band must be separat ed by at
least 1
00 MH L f rom eit her li mot For Si gnals m ore than
10 dB above desired sognal, separa to on is typ , ca lly 200
MH z
TIME BASE
FREQUE N CY 10 MH z TCXO
~A ;...;,.; G ..;: I .,;: N ::.c G ::..::. R c.c A ..;: T _ E _______________ <~ I 1 x 1o -7 !per mon th 11 x 101 11 x 10 · 6 1P~ r ye a•
~S ~ H ~ Q~R ~ T ~ T ~ E '-' R~ M '-'--------------<~ I ~ 1 - x ~ 1
7
o~--~ ' lrl r ~ m ~ s ~ f o ..;: r ~ o ~ n - csecondave r agl ngt ime . --- ---- ~
TE MP ERAT URE < J I x 10· 61 0' 1o + 50 ' C
LINE VARI ATI ON' < 11 x 1Q · 71 ± 10 %chan ge,
WARM UP TIM E
OUTPUT FREQ UEN CY
EXT . T IM E BASE
NON E
10 MH z, squ ar e-wave, 1 V Pil mln~mum into 50 Ohms.
Requ ires 10 MHz , 1 V P·P minlmlm Into 300 o hms .
1-2
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

5580 03 3
SPECIFICATIONS, continued
GENERAL
RESOLUTION Front panel keyboard i'l2_ ut select 1 Hz to 1 GHz
MEASUREMENT
TIME
1 m sec f or 1 KHz resolution
1 sec for 1 Hz resol ut i on
DISPL AY 12 digit LED sectiona lized
ACCURACY
± 1 co unt ±ti me bose error
TEST Fron t panel selected diag nosti cs
SAMPLE RATE
Controls time between measure ments v ar iable from
100 ms ec typ , to 10 sec . Switchable Hold position
holds display indefinitely.
RESET Resets display to zero and In itiates new reading
OFFSETS Keyboard co ntrol of frequen cy offsets ( st andard) and
power offs ets (standard with pow er measurement Opt i on 02).
Displayed fr equency (power) Is offset by e nt ering value to 1 Hz
resol
uti on (0 .1 dB powe r).
OPERATIO N TEMP . o
·c to so ·c
POWER
100 /1 20/220/2 40 /VAC ± 10 % (selecta ble ) 50 to
60Hz, 60 VA typi cal
WEIGHT, NET
-26 lbs. (1 1 .8 k~)
W EIG HT, SHIPPI NG
- J2 1bs .
(14.5 kg)
DI MEN S ION S (HWD)
3.5" x 16.75" x 14.0" (89 mm X 4 25 mm X 356 mml
ACCESSORIES FURNISHED
Power Cord and Manual
BAND 4
Used
with 578 10 6 Counter and 590 Frequency Extension Kit
OPTION
91
92
93 94 95 96
SELECT BAND 41 42
43 44
42 or 43 41 or 42
Waveguide Band Ka u E w v a
Range 26.5-40 GHz 4Q-60 GHz
Go-90 GHz 90- 1 10 GHz
60 -7 5 GHz
33-50 GHz
Sensitiv ity
(typ)
-2 5d8m
-25 dBm -25 dBm -
25 dBm -25 dBm
-2 5 dBm
(-20 dBm min)
Waveguide Size WR
-2 8
WR - 19
WR-12 WR- 10 WR- 15 WR-22
Waveguide Flange UG-599/U UG-363/U UG-387/U
UG -3 87/U
UG -3 85 /U
UG -3 83/U
Ma x. Input (typ) t5 dBm
-+5 dBm -+5 dBm t5 dBm t5 dBm
+5 dBm
Damage Level
t10 dBm
t10 dBm t10 d8m t10 dBm t10 d8m
t10 dBm
Aqulslt•on Time (typ) <2 .5 sec
<2 .5 sec <2 .5 sec <2.5 sec <2 .5 sec
<2 .5 sec
EXAMPLE:
lf desired m eas urem ent Is 60 - 90 G Hz . the required equipment Is:
Model 578 with O pti on 06 - Extended Frequency and
M ode l 590 - Extended Frequ en cy Cable Kit with Op t ion 93 - R emo te Se n sor
1-3
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

5580033
SPECIFICATIONS, continued
----
OPTIONS See Secti
on 10 for deta iled i nformat i on .
01 D
TO A CONV EATER
DAC will convert any three consec ut i ve ly displayed digi ts into an analog vol t age
output on rear panel.
02 POWER METER
1
to 18/26 .6 GHz will measure sine wave amplit ude to 0,1 dBm resolut io n fr om sensi tiv i ty to -10 dBm ;
f rom -10 dBm to over load and display 0.2 dBm resolut ion simultaneously with frequency.
Power offset to 0.1 dB reso lu tion , select ab le f rom f ron t panel.
Opt ion will not degrade the basic perfo rmance of the coun ter.
TIME BASE OSCILLATOR OPTIONS:
03 04 05
AGING RATE/2 4 HOURS
<i s" 10·9 1
(Al ter 72 ho ur warm-up)
<1 1 X 10 · 91
< i5x1Q ·10 j
SHOAT TEAM STAB I LITY
< 1 x 10 -IOrms < 1 x
1Q ·10 rms < 1 x
10 '10 rms
(1 sec on d average)
0" to +50 •C TEMPERATURE
S TABILIT Y
<1 6 x 10 ·8 1
<iJ x 10· 81
< I J x 10· 81
± 10 % LI NE VO LTAGE CHANGE
<i s x 10-1 01
< 12 x 1o-1o 1 < 12 x 1o- 1o 1
06
EXTENDED FREQUENCY CAPABILITY -S 48A
Use in conJ unction with models S90 Frequen cy Ex1ension kit
07 REMOTE PR OG RA M MING /BCD OUTPUT
08 GP JB - Provid es programm ing and o utput capabil ity per IEEE 48 8· 1978 .
09 REAR I NPUT
10 CHASSIS SLIDES
1-4
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

5580033
SAFETY
Section 2
Installation
The Model 545A/548A Microwave Counter is a Safety Class I instrument. This instru ment has
been designed and
tested accord ing to int er national safety requ ireme nt s. This ma nual
contains information, cautions, and warnings that must be followed by the service person to
ensure safe operation and to retain the instru me nt in safe condition.
SAFETY SYMBOLS
WARNING
CAUTION
The WAR NING si gn denotes a hazard. It ca lls attenti on to a pr oced ure or
prac t ice which, if not co rrectly perf orme d or adher ed to , co uld result in
personal injury.
The CAU
TI ON sign denotes a hazard. It calls attention to an operating
proce dur e or p ractice which, if n ot correc tly p erformed or ad hered to, could
result in d amage to or destr uc tion of part or all of the product.
OVERALL SAFETY CONSIDERATIONS
WARNING
Before this instrument Is switched on, the protective earth
terminals of this instrument must be connected to the
protective conduction of the (mains) power cord. The mains
plug shall only be inserted In a socket outlet provided with a
protective earth contact. The protective action must not be
negated by the use of an extension cord (power cable)
without a protective earth (grounding) conductor.
WARNING
Only fuses with the required rated current, voltage, and
specified type s hould be used. Do not use repaired fuses or
short - circuited fuse holders . To do so could cause a shock
or fire haz ard .
WARNING
Whe ne ver it is likely that the protection has been impaired,
the instrument must be made inoperative and be secured
aga inst any unintended operation.
WARNING
All
protecti ve earth terminals . ex tension cords,
autotran s formers, and devices connected to this I nstrument
should be connected to a socket outlet prov i ded with a
protecti ve earth contact . Any interruption of the protection
will cau se a potential shock hazard th at could result in
personal injury .
2- 1
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

5580033
INSTALLATION
No special installation instructions are required. The counter is a self-contained bench or rack
mounted unit and only requires connection to a standard 100/120 /220/2 40V 50-60 Hz power
line
for operation. CAUTION
Check current rating of counter fuse and setting of rear
panel VAC selector switch before applying power to counter.
COUNTER ID ENTIFICATION
This counter is identified by two sets of numbers, the model number 545A or 548A and a serial
number that is located on a label affixed to the rear panel. Both numbers must be mentioned in
any correspondence regarding this counter .
SHIPPING
Should it be necessary to ship the counter, wrap it in heavy plastic or kraft paper and repack in
original container if available. If the original container cannot be used, use a heavy (275 -po und
test) double-walled
carto n with approximately four inches of packing material between the
counter and the inn er carton. Seal the carton with strong filament tape or strapping. Mark the
car ton to Indicate that it contains a fragile electronic instrument.
STORAGE
The instrument sho uld be stored In an environment that is pro t ec ted fr om sand, dust, and
other
contam inants at an altitu de of less than 12,000 m (40,000 ft) and should not be exposed
to
temperatures beyond the ran ge of -40° C to 75° C, humidity above 95 ±5% (75 ±5%
above 30°C, 45 ±5% above 30°C}, dripping water, or vibration shock of greater than 2 g.
PERFORMANCE CHECKOUT PROCEDURE
The following procedure ca n be performed without special tools or equipment.
1. Turn co unter power switch off. Check fuse rating and setting of AC POWER switch on rear
panel.
2. Connect
power cord to 100/120 or 220/240 V, 50-660 Hz single-phase power source. The
ground terminal on t he power co rd plug should be grounded.
3. Turn
POWER swit ch on. Dashes will be displayed for about one second, followed by all O's.
This indicates that automatic self- check has been co mpleted.
TEST
4. Press 0 0 GJ. Display should read 200 000 000 ± 1.
TEST
5. Press 0 0 [D. Display should read a ll B's and a ll annunciators should be lit.
TEST
6. Press 0 0 CIJ. Each display segment sho uld light in turn.
TEST
7. Press 0 0 GJ. Each digit should light in turn.
8. This
comp letes the perf orma n ce checkout procedure.
2- 2
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

5580021
.. .
I l '3 '3 S t~, 6 '-1 -, , :' -, ,
lr.f -- -- .. ~-·------- ------ --~ ~
Figure 3·1. Front Panel, Model 545A
FRONT PANEL CONTROLS AND INDICATORS
DISPLAY
Section 3
Operation
• Th e 12 digit LED displ ay provi des a direct numerical readout of a m easur em ent or of an input
fr equency. The fr eq uency readout is displayed in a fixed posi ti on format that is sec tionali ze d in
GHz, MH z, kHz and H z. Power information is displayed in dBm to 0.1 dB r eso l utio n, on the three
right-m os t digits. Wh en bot h power and fr equency are displayed, fr eq uency resoluti on is l imit ed to
100kH z.
• POWER switch turns counter on.
• SAMPLE RATE/HOLD va ri es time between measurements from 0. 1 to 10 secon ds (n omi na l).
(
Ga te time is added to sample time, thus the mini mum reading for 1 Hz r esol ut ion is 1.1 seco nds.)
The last reading
is retai ned inde finit ely in HOLD.
•
GATE lights when the signal gate is open and a measu reme nt is bei ng made.
• SEARCH l ig h ts wh en the counter is n ot locked to an input signa l.
• RESE T manually ove r-rides all control s, r esets the counter and converter, and initiat es a new readin g.
3-1
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

5580033
OPERATING STATUS
The ope ratin g status of the counte r is indicated by a series of LEDs. When th e co unt er is displaying input
data, instead of a measurement, the ap propriate LED status indicat or will flash.
• REMOTE lights to indicate that front panel contro ls are disabled, and that the counter is being
co ntrolled by the GPIB option (08). or by the BCD/Remote P rogramming option (07).
•
EXT REF lights to indicate the counter is set to an externa l time base reference.
CAUTION
When EXT REF lights it does NOT
indicate that correct signal level
has been applied .
•
dBm lights to indi cate t hat the Power Meter option (02) is active.
• FRO LMT, L OW/ HIGH lights when frequency limits for Ba nd 3 operation have been sel ected.
• OFFSET, PWR/FRQ lights when power and/or frequency offsets are s tor ed in the cou nt er memory.
• Band 1, 2, 3, 41, 42, 43, 44 light to indicate which operating range has been sel ected. When any
Band 4 annunciator is lit it i ndicates that the Extended Frequency Capabi li ty optio n (06) h as been
sel ected (Available on 548A only).
• DAC lights to indic ate that the Digital- to -A nalog Converter option 01 is act ive.
• MLT lights to indicat e the multiplier function is active.
POWER METER/DAC OPTION KEYBOARD
Four keys control t he opera ti on of these options .
• ON/ OFF push button ac tivates/deactivates power meter.
• OFFSET push button activates the power offset fun ction.
• dB pushbutton acts as a t erm ina tor for the input of power of fsets.
• DAC pushbutton, follow ed by two c1igits (00-12). activates the DAC opt i on. The number keyed
in will sel ect the most significant digit (00 = OFF, 01 = 1 Hz, 12 = 10 GHz).
3-2
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

558 00 21
'"'
26Y99'3:13958 '
. .
Figure 3· 2. Front Panel, 548A
SIGNAL INPUT
.~..:- ~t\)
~ .. ::.:..4®
• Band 1 i nput conn ector (BNC female) h as a nominal input impedance of 1 M eg ohms, sh un ted by
20 pF. It is used for measurements in the range of 1 0Hz to 100 MH z.
• Band 2 input connector (BNC femal e) h as a nominal input impedan ce of 50 oh ms. It is used fo r meas -
ur ements in the range of 10 MH z to 1 GH z.
• Band 3 input connector on the model 545A is a precision type N female. It is used for cou nt er oper·
a ti on in the range of 1 GHz to 18 GH z. Mod el 548A has an APC-3.5 female connector t hat is used
f or operat ion in the r ange of 1 GHz to 26.5 GH z.
• Band 4 is used in co njun ction with the Extend ed Frequency capab ilit y op ti on (06), the Mod el 590
Fr eq uency Extension Cable kit and a remote senso r. Remote se n sors are op tions to the Model 590
and cover waveguide bands fr om 26.5 to 110 GH z.
3-3
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

5580021
Figure 3-3. R ear Panel
REAR PANEL CONTROLS AND CONNECTORS
e Spaces label ed BAND 1, BAND 2, BAND 3, BAND 4, and TO REMOTE SENSOR are u sed f or th ose
connec tor s in in st rum ents eq uipped with Option 09, Rear Panel I nput .
• TIME BASE
ADJUST co ntr ol is used with options 03, 04, or 05 only. Sc r ewdriver adjus tm ent a ll ows
precise se tting of the int e rn al ovenized crystal oscill ator.
• T IM E BASE INT /EX T s wit ch selects ei th er the internal time base or an external 10 MHz refer ence.
• TIME BASE con n ecto r (BNC female) a ll ows monitoring of internal 10 MHz time base, or input of an
externa l 10 MHz reference.
• DAC OUT connector prov id es a voltage analog to any speci fi ed three digits of fr equency displayed, in
in strume nts eq uipp ed w ith Option 01, D to A Co nv erter.
• GPIB co n nec t or is u sed with the IEEE 4 88 - 1 978 Gener .. l Purp ose Interface Bus.
• FUSE provides overload protection . Use a 1 amp slow ·bl ow MDL type fuse for 100 / 1 20Vopera tion.
U se a .50 a mp sl ow - blow FST type fu se for 220/240 V ope r atio n.
• VA C SWITCH sets th e operat ing voltage of the counter to match power line. Th ere are 4 sett ings:
100 , 120, 220, and 240 VAC. Cou nt er will operate at voltages within ± 10 % of se l ec t ed li ne voltage,
at fr eq uencies of 50 to 60 Hz.
CAUTION
Switch setti ng and fuse rating must match power line vol ta ge.
• AC POWER
con n ector accepts th e p ower co rd supp l ie d w it h th e counter.
3-4
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

558 0 033
MULT
D MHz
•I
FREQ FREQ
LIMIT
II liD
offset low high GHz
BAND RESOL TEST
DATA
.....
..
C R
••
DISPLAY
Figure 3-4. Keyboard
KEYBOARD
The keyboard consists of 16 pushbuttons that co ntr ol ma j or f unct ions of th e co unt er. Twelve keys are
used for numerical da ta en t ry, the dtgtts 0 t hroug h 9, the deci mal point and t he minus sign. Two k ey s
(MHz
and GHz) act as t erm i nators for the tnput of fr equency offset or f requency ltmit s. The CL EAR
DATA and CLEAR DISPLAY keys are us ed to clear s tor ed or displayed data. Seven of the numerical keys
are al so used to select the band, r esolutton, t est f unction, frequen cy of f set , fre qu ency limits, and mu ltiplier
function.
UNITS (MH z/ GHz)
PRESS :
PRESS :
MHz
0 Complete s Entry Sequence
0 Completes Entry Se quence
GHz
CLEAR (DATA / DISPLAY)
DATA
PRESS : D
CLEAR
PRESS : CLE
AR
D
DI SP LA Y
Return "STORED" da ta of select ed fu nction to Pow er On state.
Clears Limits (Low/Htgh), Offsets, DAC, and multiplier operations .
Clears disp lay. Does not af fect stored data. Restores counte r to
mea s ur ement mode.
3-5
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

L
5580033
BAND SELECTION
To select one of three standard operating bands on th e model 545A or 548A .
BAND
BAND BAND
PRESS : O
CQ
or
00
or
00
Notice annunc ia tor flash and selected band number will light when chosen. This f ea ture al lows multiple
inputs to be connected and selected in turn.
The "BAND" KEY follow ed by a numeric key enabl es the following ba nd se lection.
BAND
0 W 10Hz · 100 MH z Input
PRESS :
PRES S:
BAND
0 010 MH z · 1 GHz Input
BAND
0 0 1 GH z- 18 GHz (Mod el 545A) 26 .5 GHz (Model 548A)
PRESS :
On th e model 548A equ ipp ed with option 06, a 590 cable kit an d appropriate optional remote sensor,
Band 4 is
se lected by :
PRESS :
BAND
08]0
BAND
For exampl e, with th e91 Sensor you will press : DCDGJ
3·6
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com