User's Manual

UV-1G User Manual Rev. O 600MHz US – July 16
th
, 2019 87 of 95
TROUBLESHOOTING & FAQS
Wired intercom audio quality is poor.
The 2-wire intercom must be allowed to go through a brief automatic tuning process when everything
is set up (cables are connected on both sides of wired intercom, units are powered on). To start this
tuning process, press the given intercom enable button (#13 or #16 on Figure 1) until the associated
2W LED is illuminated green. This forces the system to start the tuning process. You may notice some
low level white noise audio briefly on the intercom. This is used to tune the system. After a few
seconds, the intercom will be tuned and ready to use.
Belt Pack audio levels are extremely low and sometim
es momentarily spike loudly.
Ensure that two or more Belt Packs are not transmitting on the same frequency. This problem has been
observed under these conditions.
Weak signal or poor reception on channel 2.
Check the base transmitter “separate” and “combine” switch to ensure that the two transmitters are
feeding the ports that you intend to use. If you are going into a TX-8 combiner, then you must place
the switch in “separate” and connect both transmitter antennas. If you are using one transmitter
antenna, then you must place the switch in “combine.”
Details:
When using any transmitter combiner, it is necessary
to limit the RF signals going in to each input to
one frequency. This is because inserting more than one frequency into a single RF amplifier pallet will
create RF intermodulation distortion. The Radio Active Designs UV-1G may be used stand alone or in a
multiple system configuration with a transmitter combiner such as the TX-8.
In the stand-alone mode of operation, one may place a whip antenna directly on to the rear panel BNC
of the unit. In this case, one would place the UV-1G in to “Combined” mode. If you are deploying any
transmitter combiner you must place the switch in to the “Separate” mode. This will place the two
internal transmitters on to both BNC RF output connections on the rear panel.
LEDs or LCD backlight on Base Station or Belt Pack will not turn on.
Blackout Mode may be enabled. Refer to the Display Settings section for more information on Blackout
Mode.
Sweeping tone on belt pack.
One of the base station transmitters is disabled and the belt pack receiver is looking for a signal, or the
belt pack receiver or base transmitter may be mistuned.
Details:
Radio Active Designs systems are deployed in a varie
ty of Life Safety and Mission Critical applications.
For this reason, we chose to implement a closed loop system from the belt pack out to the belt pack in.