Diversity UHF Receiver
OPERATING INSTRUCTIONS
1. Connect the power cord or install the batteries.
2. Attach the antennas.
3. Connect the audio cable to the audio output XLR.
4. Set the front panel Audio Output Level control to minimum and set the Power switch to either Int or Ext, depend-
ing upon the power source. Check to see that the front panel Power LED lights up.
5. Adjust the transmitter gain. THIS IS PERHAPS THE MOST IMPORTANT STEP IN THE SET UP PROCE-
DURE. See your transmitter manual (Operating Instructions section) for details on how to adjust the transmitter
gain. In general, adjust the transmitter gain so that the voice peaks will cause the 0dB LED on the front of the
receiver to light on the loudest peak audio levels. This will result in the best possible signal to noise ratio for the
system without causing overload distortion.
6. Adjust the Audio Output control according to the type of input on your equipment. The Range switch (located in
the battery compartment) sets the adjustment range of the front panel Audio Output control and has three posi-
tions.
Low (toward the front panel): The adjustment range is from –50dBm to –20dBm.
High (center): Allows an adjustment from –30dBm to 0dBm
Fixed (toward the rear panel): Sets the audio output to a fixed +4dBm with no
front panel control.
The input levels of different cameras, VCRs, and PA equipment vary, which may require that you set the Audio
Output control to an intermediate position. Try different settings and listen to the results. If the output of the
receiver is too high, you may hear distortion or a loss of the natural dynamics of the audio signal. If the output is
too low, you may hear steady noise (hiss) along with the audio. The UCR195D audio output is designed to drive
any audio input device from microphone level to +8dBm line level.
Note:
When using the +4 dBm FIXED position of the output range switch, do not ground pin 2 or pin 3 of the XLR output!
The output impedance is only 50 Ohms (unbalanced) when in the FIXED position and this is not enough to isolate
the audio amplifier from a short to ground. Distortion will result. This is in contrast to the DR195 receiver which
has a transformer coupled output. With a transformer coupled output, one end needs to be grounded when connect-
ing an unbalanced load to the output jack.
AUDIO
AMP
OUTPUT LEVEL ADJUST
AND RANGE SWITCH
XLR
OUT
AMP
LEVEL
LO
HI
FIXED
LO
50
511
511
HI
FIXED
50
511
1k
511
MONITOR
MONITOR
OUT
3
1
MUTE
RELAY
2
UCR195 Simplified Audio Output Circuit
UCR195 REPLACEMENT PARTS and ACCESSORIES
Part No. Description
A-500S UHF Rubber Duck Antenna, straight connector
A-500RA UHF Rubber Duck Antenna, right angle connector
32251 Velcro mounting strips
35753 Zippered, padded vinyl system pouch
CH12 AC Power Adapter, 110V input, 12VDC output
Rio Rancho, NM – USA
11
(14 pages)
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Comments to this Manuals