Radio Test - Kirisun FM540 Service Manual

3. First Level Squelch Adjustment
a.Set the RF signal as -122dBm, modulated frequency deviation as 1.5kHz. On the computer
mode(open), click OK when the value is stable.
b.Set the RF signal as -124dBm, modulated frequency deviation as 1.5kHz. On the computer mode
(close), click OK when the value is stable.
4. Field Strength
a.Set the RF signal as -120dBm, modulated frequency deviation as 1.5kHz. On the computer mode(low
RSSI), click Ok when the value is stable.
b.Set the RF signal as -70dBm and modulated frequency deviation as 1.5kHz. On the computer mode
(high RSSI), click OK when the value is stable.

6.2 Radio Test

The specifications below should be tested in test mode:
RX
1. Sensitivity: <= -120dBm(0.25uV) 12dB SINAD
2. Distortion: <=5%
3. Current: static current <=100mA
RX working current: =400mA
4.CTCSS/DCS Decoding: the radio decodes correctly when it is<= -116dBm(0.35uV)
rd
5. Sensitivity of the 3
rd
6. Sensitivity of the 3
TX
1. Output Power: high (25W±2W)
2. TX Current: high power transmission <= 8A
transmission <=3A
3. Maximum Frequency Deviation: 1.8kHz---2.5kHz
4. TX Distortion: <=5%
5.CTCSS/DCS Frequency Deviation: 0.3---0.5kHz with fine waves
6. TX Frequency Deviation: reference frequency+/-500Hz
7.DTMF Frequency Deviation: 1.5 2.0 kHz
8.FFSK Frequency Deviation: 1050Hz+/-50
squelch off: when RF input is ≤-124dBm, the squelch should be turned off.
squelch on: the squelch should be turned on when RF input is ≥-122dBm.
Middle (10W±2W)Low (5W±1W)
middle power transmission <=5A low power
FM540 Service Manual
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