VHF/UHF Vehicular Repeater
|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 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 CE22 Software.
Please take a few minutes to read this manual carefully. The information presented here will allow you to derive maximum performance from your VXR-1000.
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- Microphone Jack
Connect the microphone plug to this jack.
- CHANNEL Selector Knob
This knob selects the operating channel.
- PRI Indicator
When on, "PRI" indicates that the unit is at priority count zero and will repeat all transmissions.
- TX Indicator
When on, "TX" indicates that the repeater is transmitting to the handheld.
- COR Indicator
This lamp blinks red when the VXR-1000 is receiving a signal from a handheld, and glows red while the VXR-1000 is
receiving a sub-audible tone from the handheld.
- MBL Indicator
This lamp blinks red when the Mobile is receiving signal from repeater or base, and glows red while the Mobile is transmitting to the repeater or base.
- PWR Indicator
This is the main "POWER ON" indicator for the VXR-1000.
- VOLUME Knob
This knob adjusts the receiver volume.
No Channel Data
(Channel is Vacant)
TX, COR, and PWR Indicators Blink
ARTS Out of Range
PWR Indicator Blinks
JP1004: Controls the output impedance of the transmit audio line to the mobile radio. Short: low-Z (600
ohms); open: high-Z (4.7 k ohms)*
JP 1005: Controls the maximum drive level of the transmit audio output to the mobile. Short: low level output (0-100 mV)*; open: high level output (0-5 V).
JP1001/1002/1003: Polarity of Power supply control. Default setting: active high (JP 1003: short).
(* default setting)
VR1001: Mobile Microphone level
VR1002: Mobile RX Audio (Ext. Mod level)
VR1007: Mobile TX Audio (output level)
The VXR-1000 has a fixed 3 minute time-out timer 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.
When the user leaves the vehicle, they activate their mobile radio via its front panel or a separate switch. When the mobile radio is receiving a signal, the VXR-1000 will begin transmitting on the hand-held's receive frequency. The user is able to hear and respond to all radio traffic, including other hand-helds on the same frequency. 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.
When the radio is connected to a trunking mobile 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 monitoring the "on-air detect" 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 seconds and send a "busy" tone to the handheld with each unsuccessful attempt, to indicate progress of the call attempt. If unsuccessful after 30 seconds, the radio will transmit an "intercept" tone to alert the handheld that the call attempt failed.
When the VXR-1000 detects that the mobile is transmitting, it will continue to monitor the "on-air detect" line until the transmitter remains keyed for at least 250
ms to determine if the radio is merely handshaking or retrying. After successful acquisition of a voice channel, it will continue to hold the mobile's PTT active for 2 seconds and transmit a "go-ahead" blip to the handheld. You may then key their handheld to 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.
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- EXT SP (External Speaker)
An external loudspeaker may be connected to this 2-contact, 3.5-mm mini-phone jack.
- DSUB 9-Pin Accessory Connector
External TX audio line-input, PTT, external RX audio line-output, and other signals may be obtained from this connector for use with accessories.
- Antenna Socket
The Antenna socket is a standard 50 ohm BNC antenna connector.
||Mobile TX Audio
||PWR Supply Cntrl
||Mobile PTT Output
||Vcc (13.8V DC)
||Mobile RX Audio
||Mobile COR Detect
||Mobile Mic Audio
||Mobile TX Detect/
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