Transmitter; Receiver - Maxon SM5102 Service Manual

1.2 Transmitter

Test Method is ETS 300.086 2001 unless stated.
Performance without Sub-Audio Modulation
Power Output
High Power
Low Power
Audio Freq. Deviation
12.5kHz
20kHz
25kHz
With or without audio sub-modulation (10% peak
deviation)
Audio Characteristic
(Method as FTZ17 TR 2049 July 1988)
Modulation Type F3
Within +1/-3dB of limit at 1kHz:
300Hz to 2.55kHz for 12.5kHz channel spacing
300Hz to 3.0kHz for 20 / 25kHz channel spacing
Modulation Type G3
Within +1/-3dB of 6dB/octave limit wrt 1kHz:
300Hz to 2.55kHz for 12.5kHz channel spacing
300Hz to 3.0kHz for 20 / 25kHz channel spacing
Tx Spurious Emission (conducted and radiated)
Below 1GHz
1 – 4GHz
Mic Sensitivity
At Accessory/Mic connector
15mV +/- 3.5mV
Values for 60% peak dev.
Transmitter Audio Distortion (Without CTCSS)
1kHz
Transmitter Audio Distortion (With CTCSS)
1kHz
Audio frequency = 1kHz, with any CTCSS freq.
combined.
Hum and Noise (Residual Modulation)
Method as FTZ 17 TR 2049 July 1988
Better than 40dB (with PSOPH)
Sub Audio Tones - CTCSS
Tone Range
accuracy
Tone Standard
Non-Standard
Tones
Nominal Tone
Deviation
Sub Audio Tones - DCS
Tone Standard
Tone Deviation 10% ( 3% Pk System Dev. (UK)
50W nominal
5W nominal
Nominal Peak
+/-1.5kHz +/-2.5kHz
+/-2.4kHz +/-4.0kHz
+/-3.0kHz +/-5.0kHz
Better than –36dBm
Better than –30dBm
< 5% (nominal)
< 8% (nominal)
67 to 250.3Hz @ 0.3%
RS-220A EIA
50 to 260Hz @ 0.3%
accuracy
10% (8-15%) Pk Sys Dev.
Normal and Inverted

1.3 Receiver

Test Method is ETS 300.086 2001 unless stated.
Performance without Sub-Audio Modulation
Sensitivity
12dB SINAD UHF: Better than –117dBm
12dB SINAD VHF: Better than –118dBm
Amplitude Characteristic Within +/- 3dB
Adjacent Channel Selectivity
Nominal
12.5kHz Better than 60dB
25kHz Better than 70dB
Spurious Response Rejection
Better than 70dB (100kHz – 4GHz)
Intermodulation Response Rejection
+/- 25 / 50kHz
+/- 50 / 100kHz
Rx Spurious Emissions (radiated) - nominal
9kHz – 1GHz
1GHz – 4GHz
AF Power
AF Distortion – Method as FTZ 17 TR 2049
1kHz
Rx Hum and Noise
Method as TIA / EIA-603
12.5kHz
25kHz
Sub Audio Tones - CTCSS
Tone Range
Tone Standard
Non-Standard
Tones
Decode Sensitivity
Method (Decrease Signal Level, @ 10% peak
dev. with no audio tone)
All Tones
Maxon SM5102Radio
Better than 65dB
Better than 65dB
Better than –57dBm
Better than –47dBm
6W max.
< 5% (nominal)
<40dB No PSOPH
<40dB No PSOPH
67 to 250.3Hz @ 0.3%
accuracy
I-ETS 300.219
50 to 260Hz @ 0.3%
accuracy
<=9dB SINAD