User Manual Part 2

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2. Select the Low Deviation test and set the analyzer as required to measure transmitter
deviation. This test generates continuous repetitions of bits 10100000. Deviation should be 848-
1037 Hz.
3. Click the “PTT” button to transmit the tone. When finished, click that button again to
turn the transmitter off.
4. Select the “High Deviation” test which transmits a standard transmitter test pattern.
Deviation should be 2544-3111 Hz.
5. The “1011 Hz” test transmits a standard 1011 Hz tone similar to that used for the receiver
test. This tone can be used to check the operation of other radios.
6. The “Silence” test transmits a standard silence test pattern which produces no receive
audio output by the receiving radio. This tone can also be used to test other radios.
7. Select “Normal” to transmit a standard voice signal by speaking into the radio
microphone.
6.6 ANALOG PERFORMANCE TESTS
6.6.1 GENERAL
The PCTune software is not used for analog channel performance testing. Simply program
the desired channels using the PCConfigure software as described in Section 4. The RPI is still
required to monitor the audio output signal from the radio.
Depending on the application, 12.5 kHz and 25 kHz test channels may need to be
programmed. Also, test channels programmed with or without Call Guard
®
(CTCSS/DCS)
squelch control may be required.
6.6.2 RECEIVER PERFORMANCE TESTS
1. Connect a signal generator to the antenna jack using a 6 dB or greater pad. Set the output
for the channel frequency, modulated with 1 kHz at the following deviation:
12.5 kHz Channels - 1.5 kHz
25 kHz Channels - 3.0 kHz
2. Connect a SINAD meter to the receive audio jack of the RPI (see Figure 6-3) This is a
low level fixed audio output.
SINAD Sensitivity