VXR1000.pdf
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1、1 2003 VERTEX STANDARD CO., LTD. E137190A Service Manual VXR-1000 (VHF) The VXR-1000 Series is designed to provide extended handheld coverage by repeating transmissions in both directions through an existing high power mobile radio. Reliability is assured by a highly integrated surface mount circuit
2、 design and a aluminum extrusion chassis. Important channel frequency data is stored in EEPROM, and is easily programmable by dealers using a personal computer and the Vertex VPL-1 Programming Cable and CE-22 Software. Please take a few minutes to read this manual carefully. The information presente
3、d here will allow you to derive maximum performance from your VXR-1000. After reading it, keep the manual handy for quick reference, in case questions arise later on. Were glad you joined the Vertex team. Call on us any time, because our business is communications. Let us help you get your message a
4、cross. Vehicular Cross-band Repeater Contents Operating Manual Reprint. 2 Specifications . 4 Installations . 5 Interconnection with Vertex VX- Series Transceiver . 7 VXR-1000 Trunking Interface Manual.11 CE-22 Programming Software .14 Exploded View open: high-Z (4.7 k) * JP1005: Controls the maximum
5、 drive level of the transmit audio output to the mo- bile. Short: low level output (0-100 mV)*; open: high level output (0-5 V). JP1001/1002/1003: Polarity of Power supply control. De- fault setting: active high (JP1003: short). VR1001: Mobile Microphone level VR1002: Mobile RX Audio (External Modul
6、a- tion level) VR1007:Mobile TX Audio (output level) * default setting The VXR-1000 has a fixed 3 minute time-out tim- er for base to handheld transmissions. If the mobile COR is active for more than 3 minutes it will send a error blip and cease transmission until the mobile COR is inactive. FUNCTIO
7、NAL DESCRIPTION When the user leaves the vehicle, they activate their mobile radio via its front panel or a sepa- rate switch. When the mobile radio is receiving a signal, the VXR-1000 will begin transmitting on the hand-helds receive frequency. The user is able to hear and respond to all radio traf
8、fic, including other hand-helds on the same frequen- cy. The repeater jumpers and potentiometers are custom-configured for use with the particular mobile radio to which it will be connected. The CE-22 software is used to program the repeater for the required operating parameters. TRUNKING OPERATION
9、When the radio is connected to a trunking mo- bile you wish to access the system from your handheld radio, key the handheld briefly then release the PTT key. The radio will attempt to acquire a voice channel on the trunking system by keying the mobile for 200 mS and monitor- ing the “on-air detect”
10、line from the mobile. If the VXR-1000 does not see the radio transmit at all (system is busy), it will send a low tone to the handheld to alert you that the system is busy. The radio will automatically retry every 5 sec- onds and send a “busy” tone to the handheld with each unsuccessful attempt, to
11、indicate progress of the call attempt. If unsuccessful af- ter 30 seconds, the radio will transmit an “inter- cept” tone to alert the handheld that the call at- tempt failed. When the VXR-1000 detects that the mobile is transmitting, it will continue to monitor the “on- air detect” line until the tr
12、ansmitter remains keyed for at least 250 mS to determine if the ra- dio is merely handshaking or retrying. After successful acquisition of a voice channel, it will continue to hold the mobiles PTT active for 2 seconds and transmit a “go-ahead” blip to the handheld. You may then key their handheld to
13、 speak on the voice channel. If you do not key up within the 2-second period, the radio will un- key the mobile and send the “intercept” tone, as before. 4 Specifications GENERAL Frequency Range:150 - 174 MHz (Receive frequencies within a 5 MHz spread over the range 150 - 174 MHz) Number of Channels
14、:16 Channels Channel Spacing:12.5/25 kHz Supply Voltage:13.8V DC, negative ground Ambient Temperature Range:30 C to +60 C Frequency Stability:2.5 ppm RF Input-Output Impedance:50 Audio Output Impedance:8 Case Size (WHD):111 25.4 136 mm (4.4” 1” 5.4”) Weight:400 g (0.9 lb.) RECEIVER Circuit Type:Doub
15、le Conversion Superheterodyne Sensitivity:EIA 12dB SINAD 0.30 V 20 dB Quieting:0.40 V Squelch Threshold:0.2 V to 2 V Adjacent Channel Selectivity:60 dB Intermodulation Rejection:60 dB Spurious and Image Rejection:60 dB Conducted Spurious Emissions: 57 dBm Audio Output:1 W into 8 w/3 V, Squelch close
16、d: 0 V. This input level can be switched between “Squelch open” and “Squelch closed” when this pin is at “high” level via CE-22. Impedance: 1 M. The Squelch Threshold level can be changed by ad- justment of VR1003. Pin 8: Mobile Microphone Audio Mobile microphone audio input. This is the same au- di
17、o which is being sent to the mobile radios Mic Amp circuit (i.e. the microphones audio is “split” between the mobile radio and the VXR-1000) Input impedance: 100 k The input level to the mobile transceiver can be changed via CE-22 (range) and VR1001 (value). CE-22 EXT MIC level “HIGH”: 18 dBm 0 dBm
18、CE-22 EXT MIC level “LOW”: 44 dBm 18 dBm Pin 9: Mobile TX detect/Mobile Microphone PTT Mobile Tx/Rx control input. This input function can be switched between “Mobile MIC PTT” input and “Mobile Tx Detect” line input via CE-22. This input level can be switched between “Tx” and “Rx” when this pin is a
19、t “high” level via CE-22. Input impedance: 10 k. Note:, When the VXR-1000 is used in a Trunking sys- tem, the “Mobile TX Detect” input signal must be re- ceived from the mobile transceiver when connected to the Trunking system (the VXR-1000 checks this pins level to confirm successful connection to
20、the trunking system). When this pin is at “high” level (3 V), the VXR-1000 is commanded into the TRANSMIT mode. When a successful “handshake” occurs with the Trunk- ing system, this line goes “low” and the VXR-1000 is released into the RECEIVE mode. Pin 4: Mobile PTT Output This pin controls the mob
21、ile transceivers TX/RX status. This pin is an open-collector, “active-low” circuit. When this pin closes to ground, the mobile transceiver is switched into the TRANSMIT mode. Maximum current: 20 mA. Pin 5: Vcc (13.8 V) This pin is the DC power supply connection for the VXR-1000. Maximum current: 2A.
22、 Pin 6: Mobile Receive Audio Receiver audio input to the VXR-1000 from the mobile transceiver. Function VXR-1000 turns on when this pin connects to ground. VXR-1000 turns off when this pin connects to ground. VXR-1000 turns off when this pin is “high” level. VXR-1000 turn on when this pin is “high”
23、level. JP1001 short short open open J1002 short open short open J1003 open short open short 7 This document outlines the interconnections and hardware settings required for interface of the Ver- tex VXR-1000 Compact Mobile Repeater to the Vertex VX- series of mobile transceivers. 1. Interconnections
24、 to Mobile Transceivers The chart below shows the interconnections between J1004 on the VXR-1000 and the correspond- ing interface jacks on the compatible mobile transceivers. Note 1: The Mobile COR Detect line may be connected, inside the mobile trans- ceiver, to either pointshown (e.g. for the VX-
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