36
DB-750X
General
Frequency range
RX: 108-136 MHz AM
136-174 MHz FM Wide/FM Narrow
220-260 MHz FM Wide
350-490 MHz FM Wide/FM Narrow
TX: 136-143.995 MHz FM Narrow
144-147.995 MHz FM Wide
148.000-174 MHz FM Narrow
400-429.995 MHz FM Narrow
430-449.995 MHz FM Wide
450-469.995 MHz FM Narrow
470-490 MHz FM Wide
Number of channels
750 channels
Channel spacing
25 kHz(Wide band)
20 kHz(Middle band)
12.5 kHz (Narrow band)
Phase-locked step
2.5 kHz, 5 kHz, 6.25 kHz, 10 kHz, 12.5 kHz,
15 kHz, 20 kHz, 25 kHz, 30 kHz, 50 kHz
Operating voltage
13.8 V DC ±15%
Squelch
Carrier/CTCSS/DCS/5-Tone/2-Tone/DTMF
Frequency stability
±2.5 ppm
Operating temperature -20 ~ +60°C
Dimensions(WxHxD)
139 (W) x 40 (H) x 212 (D) mm
Weight
about 1.14 kg
Specifications
12
RX/TX: 144-146 MHz, 430-440 MHz
Receiver (ETSI EN 301 783)
Wide band
Narrow band
Sensitivity
(12dB SINAD)
≤0.25 μV
≤0.35 μV
Adjacent channel
selectivity
≥70 dB
≥60 dB
Audio response
+1~-3 dB (0.3-3 kHz) +1~-3 dB (0.3-2.55 kHz)
Hum & Noise
≥45 dB
≥40 dB
Audio distortion
≤5%
Audio power output
>2 W @ 10%
Transmitter (ETSI EN 301 783)
Wide band
Narrow band
Power output
Modulation
16KΦF3E
11KΦF3E
Adjacent channel
power
≥70 dB
≥60 dB
Hum & Noise
≥40 dB
≥36 dB
Spurious emission
≥70 dB
≥70 dB
Audio response
+1~-3dB (0.3-3 kHz)
+1~-3dB (0.3-2.55 kHz)
Audio distortion
≤5%
50 W / 25 W / 10 W / 5 W (VHF)
40 W / 25 W / 10 W / 5 W (UHF)
