MC 6800 DSC - President Electronics
MC 6800 DSC - President Electronics
MC 6800 DSC - President Electronics
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8. TECHNICAL SPECIFICATIONS<br />
Power supply DC 12 V +30/-10%<br />
Channel capability<br />
55 international channels<br />
1~28, 60~88 simplex & semi-duplex<br />
Frequency Resolution<br />
25 KHz<br />
Method of frequency generation<br />
synthesizer<br />
Dimension<br />
180(W) x 50(H) x 230(D) mm<br />
Weight<br />
1680 g<br />
1. Receiver<br />
Multi Channel Receiver<br />
The receiver incorporates a dual conversion super-heterodyne design.<br />
Tuning frequency range<br />
156.300-162.025 MHz<br />
IF frequency used:<br />
21.4 MHz; 455 KHz<br />
Maximum useable sensitivity<br />
6 dBµ e.m.f. of 20 dB/SINAD<br />
Adjacent Channel selectivity<br />
70 dB<br />
Inter-modulation Rejection<br />
68 dB<br />
Current:<br />
0.9 A (Max Audio)<br />
0.3 A (STBY)<br />
Audio Frequency Response<br />
+1, -3 dB of +6 dB/octave<br />
De-emphasis 300-3000 Hz<br />
Hum and Noise<br />
Audio output<br />
46<br />
40 dB<br />
3.5 W at less than 10% distortion<br />
with 8 Ohm external speaker<br />
2 W only internal speaker<br />
2. Channel 70 Monitor General specification<br />
Frequency<br />
CH70 (156.525 MHz)<br />
Sensitivity<br />
0 dBµ e.m.f. for 20 dB/SINAD<br />
Band width<br />
16 KHz<br />
First IF frequency used<br />
17.9 MHz<br />
Second IF frequency used<br />
455 KHz<br />
Adjacent Channel Selectivity<br />
70 dB<br />
Inter-modulation Rejection<br />
65 dB<br />
Mode of Reception<br />
16K0G2B<br />
3. Transmitter<br />
Type of emission<br />
16K0F3E(Voice)<br />
13K5G2B(<strong>DSC</strong>)<br />
Frequency range<br />
156.025 - 157.425 MHz<br />
Output power<br />
25 W, 1 W into 50 Ohms<br />
Audio Harmonic Distortion 10%<br />
Audio Frequency Response<br />
+/-3 dB of +6 dB/octave<br />
Pre-emphasis 300 - 3000 Hz<br />
Hum and Noise<br />
-40 dB<br />
Frequency Deviation<br />
5 KHz max peak<br />
Spurious Emissions (Radiated) 0.25 µW<br />
Current 5 A (25 W)
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