Specifications

6
TRANSMITTER
VHF UHF
Model Series : SD-161 SD-171 SD-164 SD-174
Carrier Power : (Nom. Max. Min.)
Hi Power
Low Power
2W < 3W > 1.5W
N/A
5W < 6W > 4.5W
1W<1.5W>0.8W
2W < 3W > 1.5W
N/A
5W < 6W > 4.5W
1W<1.5W>0.8W
Sustained Transmission :
Time : 5 10 30Sec
(Nominal Conditions)
Power : >90% >85% >80% Power : >90% >85% >80%
Frequency Error :
Nominal condition
Extreme condition
< 0.5 KHz
±5.0 ppm
< 0.75 KHz
±5.0 ppm
Frequency Deviation :
25 KHz Channel Spacing
12.5 KHz Channel Spacing
Peak ±5.0, Min. ±3.8
Peak ±2.5, Min. ±1.9
Audio Frequency Response : Within +1/-3dB of 6dB octave
@ 300 Hz to 2.55 kHz for 12.5 kHz C.S.
@ 300 Hz to 3.0 kHz for 25 kHz C.S.
Adjacent Channel Power :
25 KHz Channel Spacing
12.5 KHz Channel Spacing
< 70 dBc @ Nominal Condition , < 65 dBc @ Extreme Condition
< 60 dBc @ Nominal Condition , < 55 dBc @ Extreme Condition
Conducted Spurious Emission : < -60 dBc < -30 dBm < -60 dBc < -30 dBm
Modulation Sensitivity : 100mV RMS @ 60% Peak Dev.
Hum & Noise :
25 KHz Channel Spacing
12.5 KHz Channel Spacing
> 40 dB (without PSOPH)
> 40 dB (with PSOPH)
Modulation Symmetry : < 10% Peak Dev @ 1KHz input for nominal dev. + 20dB
Load Stability :
No osc at ≥ 10:1 VSWR all phase angles and suitable antenna
No destroy at ≥ 20:1 all phase angle
Peak Deviation Range Adjustment
@ 1 KHz, Nom Dev + 20dB :
25 KHz Channel Spacing
12.5 KHz Channel Spacing
Min. 3.5, Max. 6.0
Min. 1.5, Max. 4.0