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Maintenance
UltraVoice (UV)
Adjusting the transmit deviation
To adjust the transmit deviation, do the following:
1. Simultaneously press buttons 5 and 7 on the UV+ controller card. This causes the
controller to transmit for approximately 8 seconds.
2. Measure the deviation level using a radio service monitor set to the correct RF.
3. Adjust the TX level (UV+ controller card front panel) for the following deviation
level on the radio service monitor.
a. If bandwidth is 12.5 kHz (typical), then adjust for 1.5 kHz deviation. If using
private line, add 0.375 kHz private line deviation to the signal.
b. If bandwidth is 25 kHz, then adjust for 3 kHz deviation. If using private line, add
0.75 kHz private line deviation to the signal.
4. If this step fails to solve issue, then check base station deviation levels as per base
station documentation and manual. Also if used, check the repeater.
Vertex Radio Programming Cables
When equipped with a Vertex Radio (Model VX-4500) in your two-way RTUs, purchase
the following cables for programming:
• RIB FIF-12A USB interface cable
• CT-104A interface cable
Use the RIB FIF-12A USB cable to connect to your computer. Use the CT-104A cable to
connect from the RIB FIF-12A USB cable to the radio.
600-ohm Adjustment Procedure for Activation Audio
To use the 600-ohm input for activation receive audio, at JP6, place a jumper across pins
2 and 3. JP6 is located internally on the main controller card.
1. RX adjustment
Transmit a tone from the base station.
• Ensure base station TX level was previously adjusted properly.
• Ensure tone is not clipped by viewing waveform with an oscilloscope.
• Nominal base station TX level is 1 V
p-p
Adjust the level at TP16 (UV+ controller card) for 1 V
p-p
• REC gain adjustment R105 (UV+ controller card front panel).
• Ensure tone is not clipped by viewing waveform with an oscilloscope.
Содержание ultravoice UV
Страница 42: ...42 Installation UltraVoice UV Figure 15 Omni Antenna Installation Example...
Страница 43: ...43 Installation Installation Operation and Service Manual Figure 16 Antenna Grounding...
Страница 71: ...71 Appendix C Drawings Figure 25 UV Controller Two way Radio Wiring Diagram...
Страница 72: ...72 Figure 26 UVTD IP Broadband Wiring Diagram...