Maggiore Hi Pro R1 Operating instructions

MAGGIORE ELECTRO]VC
LABORATORY
Hi Pro
OPERATING AND MAINTENANCE
MANUAL
Hi Pro "R1 " REPEATER

DESCRIPTION
-Ihe Hi Pro "Rl" is an extremely rugged completell'solid statc repeater designed for continuous operation.
State ofthe art det,ices are cngineered into tight knit straightfonvard electronic design throughout both transmitter
and receiver. Rcliablc, lou'current den.rand, colnpactness. uncxcelled perforrnance and ease ofoperation are the nct
rcsult.
The duai conversion recerver rvith its FET front end and extrerncll' high-Q circuits boast low noise and sensitivit-v
of betlcr then 0.2 uv or less Signal gain of 90 db or nore is accomplished frorn the IF amplifrer along rvith a very
lol' norse floor. Regulated oscillators, arnplifiers and squelch circuits produce unmatched stability Audio
reproduction is ofan unusualll'high order ofdistortion free clariS' Advanced squelch prevents chopping rnost
prer,alent in other repeater systcms The overall result is a receiver rvell suited for harsh RF environment.
The transmitter section produces a vcry clean. stable signal. designed for continuous operation. A well regulated
crystal oscillator and audio ampliher is employed for initial frequency stability along with well selected
components insure a high degree of stability. High-Q RF shielded stages provide minimum interstage spurious
reaction and maximum isolation A lolv pass filter is placed at the output to further insure undesirable frequencv
products not being emitted. The excellent audio charactcristics frorn the rcceiver are carried over to the transrnitter
and passed on and rebroadcast to thc antenna.
Tlte Hi Pro "Rl" is constructed in a series of rnodules *'hich are casill' removable for servicing. The design lends
it sclf to interfacing n'ith other equiprncnt. Placernent of componcnts we re carefulll' selected to insure cool
opcration and cffi cicnt opcrlrliolr.
A modern st_vle. srnall size and lou'profilc cornpliment the rvhole repeater systeln.
SECTION 1 INSTALI-ATION
t2
Unpacking.
Carefully remove your Repcater from the packing carton and examine it for signs of shipping damage.
Should any shipping damage be apparent, notiS the delivering carrier immediately, stating the full extenl
of the darnage. It is recommended -vou keep the shipping carton and all packaging in the event thc carrier
may want to examine them in addition to storage, moving, or reshipment becomes necessary.
Location.
Placement ofthe Repeater is not very critical and should be governed by convenience and accessibility.
Since the unit is so compact. many possibilities present themselves BE SURE TO PROVIDE PLENTY
OF VENTILATION BOTH ABOVE AND BELOW TI{E REPEATER. A FAN MOLINTED IN THE
REAR OF TT{E REPEATER WITH AIR FLOW DIRECTED TOWARD THE I{EAT SINKS WOULD
BE ADVANTAGEOUS. BUT NOT NECESSARY IF TEMPERATURES REMAIN BELOW IOO"
FARENF{EIT.
Pou'er Requirelnents.
The "RI" Repeater is not supplicd w'ith a I l0r,AC 60cy porver supply A 13.8 volt DC, ncgativc ground
system capable of at least 5 amps is rcquired. The "Rl " can be ordered with a separate AC power supply.
The lorv current draw is ideal for use in a remote solar polver system. Some precautions must be takcn
holvever to thc condition of thc electrical system. Items such as lorv battery, poor voltage regulation, e1c..
will impair operation of your repeater system.
1.3
tl

- i Hr.-sh noise gcneratiou or lo\\' po\i'er output and hum cart usualll be traced to a poll'er sourcc deficiencl'
I-orr voltage uhilc rrndcr load rr.ill not produce satisfacton rcsults l'rom vour Repeater svstern and
perlbrmance rrill bc grcatlr inrpaired.
C-{UTION: Erccssir,c voltage ( abor c I l0 / 2-l()r' AC - l -5r DC ) u'ill carrsc damage to vour rcpcillcr.
Be sure to clieck thc sourcc voltage before couuecliug artv po\\'cr to \our repeater'. Do not defeat ground
pin on the porier cord. Alu'avs Usc A GroLrndcd Oullct.
I + Anteuna.
Thc most important single itenr that riill influence thc perfornrancc of anv communicatiou slsteur is the
antenna. For that rcasou. a good high quahlr'gain anteuna of -5() ohurs irrrpcdance is recomureuded. 'lhe
antenna should bc free l'rom mechanical joints and clamps to reducc thc possibilrtv of poor connections
generating noisc in the svstem. Whell adjusting vollr antenna. b1.'all rncans. follou'the manufacturer's
instructions. There arc some pilfalls to ar oid. For crample. do not atternpt to adjust an antcnna for lon'cst
VSWR u'ith thc rcpcater transurittcr. NE\ER tn an\ adjustn'rerrls n'hile connected to the duplexer.
Rather use a lo\\ po\\cr transrrritter and an in line \\'att meter siirrilar to the Bird.13 n'ith the propcr
conncctions and slug.Use hardline or dubble shielded cablc artd avoid long runs.Ar,oid using adapters to
match cables and connectors on the Rcpeater. antenna or duplcxcrs.
SECTION 2 OPERATION
2.1 InitialPrcparalions.
a. Connect the antennas or duplerer cables to the l{epcalcr coaxial conr}ectors. Make sure the coar
are tlic right inrpcdauce of -j0 ohnis and tllal cor)rlcctors arc lcll soldered. tight and not shortcd.
b. Makc sure the porver su'itch is in the olf position. This preveuts the transnritter from being ke1'ed up
iir the repeal nrodc.
c. lf an auto palch is to be uscd thcu conncct thc phone linc at this timc.
d. Connect to a propcr po\\er sorlrcc.
e. Do not adiust thc volumc or squclch cor)trol locatcd insidc of llic rcpcater. Thcsc tlro controls arc
preset at tlic facton'. Rcadjusting thcsc controlls u'ill adversih'cflcct the overall opcration of the
s) stelll.
I I Operalion.
Su'itch on the pol,r'er b1 pushing don n on the su'itch locatcd on the rear panel. panel.
I I Reception.
a. A optional speaker can bc attached to feed thru "B" located inside the ccnter compartrncnt of the
Repeater. A adjustable "T" pad u'ill bc neccssan'to control the volunre. DO NOT adjust the master
volume control orr the rcceiver board as this u'ill upsct all rcpcat and auto patch audio levels.
b The squelch control on receivcr board has bcen sct at the factorv and sltould not require an1'furtl'rer
adjustncnt.
I + Transmitting.
a Tl're transmitter po$'cr output has been set at the f.rctory and should not be increased. Little bencfit
nould be realized and thc increase in poncr ma1'resuh in premalure failure of the pou,cr atnplifier. .:
b. In tl're event that vou rna\'\\'ant to decreasc thc output of the pou'er amplifier, a control on the exciter
board has been pror.,idcd. The maximuur dccrease il poucr should not cxcced oue third of marimutn
po$cr output This u'ill insure maximum stabilitt of tlic amplifier.

SECTIO\ 3 IIAINTENAI{CE.
Titc necessih' of completely realigning the repcatcr is rurlikelr . Tl're most coulnoll cause of brcakdorvn
ls .olttponcnl failure due to lightning strikcs. Il is felt that the average o*'ncr *'ould not har,e the
necessan equipment or facilities to accornplish realignment in anr.case. If in the event i1 is necessan,
ltr- do providc pertinent instruction to realignntcnl.
Great carc and precision are cmploved in its manufacturc and ri'arrantl sen'ice is prorided to insurc
thal it n.reets specifications. Adjustncnts not outlined hereiu should not be undcrtaken unlcss the ou'ner
is skilled as a tcchnician.
: I Transrnitter Crystal Alignment.
a Connccl a 50 ohm durnnrl'load to the transurittcr oulput of thc rcpcatcr.
b. Ker the repeater transmitter and slorvlt' ad-just thc trinuncr capacitor located next to the transmitter
cn'stal. until thc desired frequency is achieved. Do not attempt to do tliis u'itl.rout a proper high
quulitr frcqueno monitor.
: .: Receir.er C4'stal Alignntent.
a Placc Rcpeater in simplex mode.
t Coiurect tcst oscillator to the receiver coarial conncctor aud sel to thc proper receir"er frequcncr.
c Slorilv ad.iust thc trinrnrer capacitor located uexl to thc rcceir.er cn'st{tl. until the desired frequeno'is
achiq'cd.
I I For information on controllcr oocratiou refer to the controller mauual.
SAFETY INSTRUCTIONS
i RE,,\D ALL THE INSTRUCTIONS BE.FORE OPERATING THE EQUTPMENT.
] RETAIN ALL INSTRUCTIONS AFTER READING FOI{ FUTURE REFERENCE
.: HEED WARNINGS IN THE OPERATING INSTRUCTIONS.
] DO NOT PLACE EQUIPMENT NEAR OR IN WA'|ER OR N1OISTURE OR C]LOSE TO
CONTAINERS THAT MAY SPLASH ONTO THE EQUIPMENT.
: REPEATERSHOULDNOT BE PLACED ON ORNEARANYHOTEQUIPMENT
- ONLY USE POWER SOURCES RECOMMENDED BY THE MANUFACTURER.
- PO\\TER CORDS SHOULD BE ROUTED SO TFIAT THEY ARE NOT LIKELY TO BE
CRUSHED OR PINCHED BY ITEMS PLACED UPON OR AGAINST THEM. PAY
PARTICULAR ATTENTION TO CORDS AND THERE CONDITION AND KEEP AWAY
FROM HEAT AND FLAME.
J CARE SHOULD BE TAKEN TO PREVENT OBJECTS AND LIQUIDS FROM FALLING
OR SPILLING INTO THE ENCLOSURE.
Y DAN{AGE REQUIRING SERVICE.
,4 T'HE POI4.ER SUPPLY OR PROTEC:TIOI{ (:IRC:UITS A]T1.. 1)AMAGI'D.
B LIQUIDS OR OB.IECT'S E]VTERING |'HE CABINET,
c EQUIPMENT', DOtiS NOI',APPEAIT l',O OP||nATE NORMALLY OR TiXHTBITS TLARKED
CHANGE IT{ I' EII]IO RMANC E.
D I.HE II.NCLOSURE HAS BEEN DAMAGED.
i,, THE USER SHOULD NOT ATTEMPT TO SERVICE THE EQTJIPMENT REFER ALL
REPAIRS TO A QUALIFIED TECHNIC]IAN.

Maggiore Electronic Lab.
FEED THRU IDENTIFICATION
R1 REPEATER
A +.13.8 VDC
B RECE IVER
.C RECEIVER
.D SPARE
.,E" TRANSMIT
F' SPARE
G KEYING (switched 13.8 VDC)
,.H" 13.8 VDC SUPPLY
A 112'' FEED THRU GROMET IS SUPPLIED ON REAR OF REPEATER
FOR CONNECTIONS TO EXTERNAL ACCESSORIES.
USE A WELL FILTERED 13.8 VDC, 5 AMP OR BETTER SUPPLY.
FANS OR HEATERS ARE NOT REQUIRED UNLESS SUBJECTED TO
EXTREME HEAT OR COLD.
A FUSE AND REVERSE VOLTAGE PROTECTION IS PROVIDED.
___ FRoNEA!N.E!
HIGH LEVEL AUDIO
COS
HIGH LEVEL AUDIO INPUT
R1 4.7 ohms 2 W
R2 4.7 k 114 W
RECEIVER
@wrorcw
CONIROL
PIT S!!rrC{D 1l8VJ1A
EXCITER
CONTROLLER
COMPARTMENT
1J3VDC
D1 PROTECTION DIODE ssPSL,R

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FRONT PANEL
ot
IRANSMITTER
O C0MPARTMENT OHi Pro " Rl"
otREMOVE THESE TWO SCREWS
N MoUNT FAN SUPPoRT BRACKEI
I ol
*,J, I
o [Jlr tnr o
I
=---r--*
FAN
BRACKET FRONT PANEL
TR,ANSMITTER I
DC FAN
TO
ls.
PTT INPUT. RED WIRE FROM
FAN.
FEED FAN POWER CORD THROUGH
1/2" GROMMET IN REAR OF REPEATER.
ATTACH BLACK WIRE TO GROUND TERMINAL
NEAR REAR PANEL GROMMET. ATTACH
RED wlRE To PTT LINE IRED + WHITE].
ON TRANSMITTER BULKHEAD.
DC FAH II{STRUCTIOHS.
f pLrase NorE: soME "Rr" REPEATERS wrLL REourRE DRILLING A t/16" HoLE.