JPS PTG-10, Инструкция по установке и эксплуатации, Страница: 12 / 26

PTG-10 Operations Manual
2-4
Interoperability Now!
2.8 Interconnect Information
2.8.1 Input and Output Connections Plus Power and Ground
All external connections are made via wires that enter the unit through a grommet located on the
side of the chassis. The wires are connected to JP1 as shown in Table 2-1.
2.9 Setting Levels
The unit is factory set for the audio input level from the receiver to be -10 dBm and the audio
output level of the PTG-10 to be 0 dBm. The PTG-10 is also factory set for the pilot tone level
to be 0 dBm. Below is the procedure for setting the levels of the receive and pilot tone audio on
the PTG-10:
Please refer to Figure 5-2 .
1. Connect the receiver audio to the PTG-10 as shown. Either COR or /COR may be
used. The COR input produces a tone when a high signal is present. /COR produces
a tone when a low input signal is present.
2. Place a 1 kHz reference test tone (3 kHz deviation wideband / 1.5 kHz narrowband)
into the receiver antenna input.
3. Adjust R8 for the desired audio output level measured across pins 5 and 6.
4. Remove the test tone from the receiver so that the receiver squelches; then adjust R4
for the desired tone level.
Table 2-1 JP1-Input/Output Connector
Eight way screw driver terminal block.
Pin Signal
1 Ground
2 COR Input
3 /COR Input
4 Unbalanced Audio Input
5 Balanced Audio Output A
6 Balanced Audio Output B
7 Ground
8 +11 to +15 VDC Power Input