JVCKENWOOD 371404 UHF Digital base repeater User Manual
JVC KENWOOD Corporation UHF Digital base repeater
User Manual

NXR-700/ NXR-800
INSTRUCTION MANUAL
© B62-1994-00 (K, K2)
09 08 07 06 05 04 03 02 01 00
MANUAL DE INSTRUCCTIONES
MODE D'EMPLOI
BASE-REPETIDOR DIGITAL VHF / BASE-REPETIDOR DIGITAL UHF
VHF DIGITAL BASE-REPEATER/ UHF DIGITAL BASE-REPEATER
BASE-RELAIS NUMÉRIQUE VHF/BASE-RELAIS NUMERIQUE UHF

◆ Thisrepeaterisintendedforuseasaxedbasestationwiththe
antennalocatedoutdoorsontherooftoporonanantennatower.
◆ UseonlythesuppliedDCcord.
◆ DonotremovetheferritecoreattachedtotheDCcord.Doingso
maycauseinterferencewithradiocommunications.
UNPACKING AND CHECKING EQUIPMENT
Note:Thefollowingunpackinginformationisforusebyyour
Kenwood dealer, an authorized Kenwood service center, or the 
factory.
Carefullyunpacktherepeater.Werecommendthatyou
identifytheitemslistedinthefollowingtablebeforediscarding
thepackingmaterial.Ifanyitemsaremissingorhave
beendamagedduringshipment,leaclaimwiththecarrier
immediately.
Item Part Number Quantity
Frontglass B10-2781-XX 1
Dressedscrew N08-0563-XX 1
Bracket J29-0725-XX 2
Flatheadmachinescrew N32-4008-XX 4
Handleandscrewset K01-0421-XX 1
DC cord E30-3344-XX 1
Leadwirewithconnector(15pin) E37-1381-XX 1
Fuse(7.5A) F05-7521-XX 1
Instruction Manual B62-1994-XX 1
Serialnumbersticker B42-7325-XX 1
INSTALLATION
Toinstallthehandlesontothefrontpaneloftherepeater,align
thehandleswiththeholesonthefrontpanel,thensecurethe
handlesusingthesuppliedscrews.
Pleaseconsultyourdealerforinstallingtherepeaterand
antenna.
MICROPHONE
Connect an optional KMC-30, KMC-35, or KMC-9C Kenwood 
microphone to the MICROPHONEjackonthefrontpanel.
NOTICES TO THE USER
FCC WARNING
Thisequipmentgeneratesorusesradiofrequencyenergy.Changes
ormodicationstothisequipmentmaycauseharmfulinterference
unlessthemodicationsareexpresslyapprovedintheinstruction
manual.Theusercouldlosetheauthoritytooperatethisequipmentif
anunauthorizedchangeormodicationismade.
◆ Governmentlawprohibitstheoperationofunlicensedradio
transmitterswithintheterritoriesundergovernmentcontrol.
◆ Illegaloperationispunishablebyneand/orimprisonment.
◆ Referservicetoqualiedtechniciansonly.
INFORMATION TO THE DIGITAL DEVICE USER REQUIRED BY 
THE FCC
Thisequipmenthasbeentestedandfoundtocomplywiththelimits
foraClassBdigitaldevice,pursuanttoPart15oftheFCCRules.
Theselimitsaredesignedtoprovidereasonableprotectionagainst
harmfulinterferenceinaresidentialinstallation.
Thisequipmentgenerates,usesandcangenerateradiofrequency
energyand,ifnotinstalledandusedinaccordancewiththe
instructions,maycauseharmfulinterferencetoradiocommunications.
However,thereisnoguaranteethattheinterferencewillnotoccur
inaparticularinstallation.Ifthisequipmentdoescauseharmful
interferencetoradioortelevisionreception,whichcanbedetermined
byturningtheequipmentoffandon,theuserisencouragedtotryto
correcttheinterferencebyoneormoreofthefollowingmeasures:
  •  Reorientorrelocatethereceivingantenna.
  •  Increasetheseparationbetweentheequipmentandreceiver.
  •  Connect the equipment to an outlet on a circuit different from that to 
whichthereceiverisconnected.
  •  Consultthedealerfortechnicalassistance.
THANK YOU!
WearegratefulyoupurchasedthisKenwoodrepeater.We
believethiseasy-to-programrepeaterwillbehighlyeffectivein
yourcommunicationssystem,andwillkeeppersonneloperating
atpeakefciency.
Kenwoodincorporatesthelatestinadvancedtechnologyinto
allofourproducts.Asaresult,wefeelstronglythatyouwillbe
pleasedwiththequalityandfeaturesofthisproduct.
PRECAUTIONS
• Donotexposetheunittorainormoisture;topreventreor
electricshock.
• Donotopentheunitunderanycircumstances;toavoidrisk
ofelectricshock.
• Donotexposetheunittolongperiodsofdirectsunlight,nor
placeitclosetoheatingappliances.
• Donotplacetheunitinexcessivelydustyand/orhumid
areas,noronunstablesurfaces.
• Ifyoudetectanabnormalodororsmokecomingfromthe
unit,disconnectthepowerfromtheunitimmediately.Contact
your Kenwood servicecenterordealer.
NXR-700 / NXR-800 INSTRUCTION MANUAL
VHF DIGITAL BASE-REPEATER / UHF DIGITAL BASE-REPEATER

REPEATER OPERATION
Note:Pleaseconsultyourdealerforprogrammingtherepeater.
WheoperatingtherepeaterusinganoptionalOCXOunit,allowthe
unittowarmupfor24hoursafterturningthepoweron.
Whenpowerisappliedtotheunit,thePOWERindicatorlights
green.TurntheVOLUMEcontrolclockwiseuntilaclicksounds,
tounmutethevolume.Rotatetoadjustthevolume.Turnthe
VOLUMEcontrolcounterclockwisefullytomutethevolume
The BUSYindicatorlightsgreenwhilereceivingasignalandthe
TXindicatorlightsredwhiletransmitting.
TRANSCEIVER OPERATION
■ Receive
 Adjustthevolumetoyourdesiredlevel.Youmayneedto
■ Rear Panel
q RX IN jack 
ConnectanRXantennaoraduplexertothisBNC
receptacle.
w TEST/SPKR jack 
Testinput/outputjack.Connectanexternalspeakerto
thisjack.
e CONTROL I/O jack 
ConnectanrepeatercontrollertothisDB-25interface.
r SYNC 1/2 jack 
Connect to other repeater to use synchronous frame 
signal.
t LAN jack 
ConnecttoEthernet.
CONTROLS AND FUNCTIONS
■ Front Panel qw r t y u
io
e
qwr t yu
e
MICROPHONE
VOLUME
COM OFF/
POWERCTRL OCXO BUSY TX
1 2
MON
TAKE
OVER
RPT
DISABLE
A B C
3 4 5 6 7 8
STATUS
TEST/SPKR
RX TX
CONTROL  I/O SYNC
1 2 LAN REF  OUT REF  IN
FUSE
75
DC  13.8V
y REF OUT jack 
Connecttoanotherrepeaterwithinthesitetosupplya
referencesignal.
u REF IN jack 
Connectfromanotherrepeaterwithinthesitetoreceivea
referencesignal.
i FUSE 
Insert7.5Abladefusesintothesefuseholders.
o DC 13.8V jack 
Connecta13.8VDCpowersupplytothisjack.
⑩ TX OUT jack 
ConnectaTXantennaoraduplexertothisreceptacle.
io⑩
readjustthevolumewhenyoureceiveamessagefromyour
dispatcheroranothermemberinyoureet.
•  The BUSYindicatorlightsgreenwhileasignalisbeing
received.
■ Transmit
1 Listentothechannelbeforetransmitting,tomakesureit
isnotbeingused.
2  Press the microphone PTTswitch,thenspeakinyour
normalspeakingvoice.
•  The TXindicatorlightsredwhiletransmitting.
3 Whenyounishspeaking,releasethePTTswitch.
!0
!1
!2
q Speaker
w CH/STATUS Display 
Two17-segmentdigitsdisplaythechannelnumber,name,
orstatus.
e STATUS indicator 
Indicatesthestatusoftherepeater.
r Programmable Function keys 
Pressthesekeystoactivatetheirprogrammable
functions.
t COM jack 
ConnecttoPC.ConformtoRS-232Cstandard.
y VOLUME control 
Turnclockwiseuntilaclicksounds,tounmutethevolume.
Rotatetoadjustthevolume.Turncounterclockwisefully
tomutethevolume.
u MICROPHONE jack 
Connectamicrophonetothis8-pinmodularjack.
i POWER indicator 
LightsgreenwhenpowerissuppliedtotheDC 13.8V 
jack.Blinkswhenanabnormalvoltageispresent.
o TX indicator 
Lightsredwhiletransmitting.
!0 BUSY indicator 
Lightsgreenwhileasignalisbeingreceived.
!1 OCXO indicator 
TheOCXOindicatorshowsthestateofthereference
10MHzoscillator:
 LightsGreenwhenusingareferencesignalfroman
optionalOCXOunit.
 LightsOrangewhenusingareferencesignalfromanother
repeater.
 Lightsredwhennoreferencesignalisavailableorwhen
anerroroccurs.
 Doesnotlightwhenthereferencesignalisaninternal
VCXOsignal.
!2 CTRL indicator 
TheCTRLindicatorshowstheRCCHstatuswhileusing
Digitaltrunking:
 LightsGreenwhentherepeaterisusedasRCCH.
 BlinksGreenwhenusinganon-dedicatedchannel,and
RCCHisusedasRDCH.
 DoesnotlightwhenusingRDCH.


MANDATORY SAFETY INSTRUCTIONS TO INSTALLERS AND USERS 
• Use only manufacturer or dealer supplied antenna. 
• Antenna Minimum Safe Distance: 60 cm (2 feet), 50% duty Cycle. 
• Antenna Gain: 0 dBd referenced to a dipole. 
The Federal Communications Commission has adopted a safety standard for human 
exposure to RF (Radio Frequency) energy which is below the OSHA (Occupational 
Safety and Health Act) limits. 
• Antenna Mounting: The antenna supplied by the manufacturer or radio dealer must not 
be mounted at a location such that during radio transmission, any person or persons 
can come closer than the above indicated minimum safe distance to the antenna, i.e. 
60 cm (2 feet) , 50% duty Cycle. 
• To comply with current FCC RF Exposure limits, the antenna must be installed at or 
exceeding the minimum safe distance shown above, and in accordance with the 
requirements of the antenna manufacturer or supplier. 
• Vehicle installation: The antenna can be mounted at the center of a vehicle metal roof 
or trunk lid, if the minimum safe distance is observed. 
• Base Station Installation: The antenna should be fixed-mounted on an outdoor 
permanent structure. RF Exposure compliance must be addressed at the time of 
installation. 
Antenna substitution: Do not substitute any antenna for the one supplied or 
recommended by the manufacturer or radio dealer. 
You may be exposing person or persons to excess radio frequency radiation. You may 
contact your radio dealer or the manufacturer for further instructions. 
Maintain a separation distance from the antenna to person(s) of at least 
60 cm (2 feet) , 50% duty Cycle. 
You, as the qualified end-user of this radio device must control the exposure conditions 
of bystanders to ensure the minimum separation distance (above) is maintained 
between the antenna and nearby persons for satisfying RF Exposure compliance. The 
operation of this transmitter must satisfy the requirements of Occupational/Controlled 
Exposure Environment, for work-related use, transmit only when person(s) are at least 
the minimum distance from the properly installed, externally mounted antenna. Transmit 
only when people outside the vehicle are at least the recommended minimum lateral 
distance away from the antenna/vehicle