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  3. RT-820W vs C65B

Radtel RT-820W vs Retevis C65B

What RT-820W does better (3) and where C65B wins (0) — every spec side by side.

Radtel RT-820W
Radtel · 2026RT-820W
3 advantages≈ £85
vs
Retevis C65B
Retevis · 2026C65B
6.2Score
0 advantages≈ £95
Higher score
8.3Range & power2.9

Why is RT-820W better than C65B?

  1. Transmit power20 W vs 5 W4×
  2. Channels500 vs 3215.6×
  3. DisplayMonochrome display vs No display

Why is C65B better than RT-820W?

C65B has no measurable advantages in this pair.

Specifications

Side by side

Retevis C65BRetevis C65B≈ £956.2
Radio & range
Radio standardsVHF, UHFAmateur VHF, Amateur UHF
LicenceAmateur licenceAmateur licence
Digital mode (DMR / dPMR)Yes—
Dual band (VHF + UHF)YesYes
Frequency ranges136–174 MHz, 400–470 MHz440 - 470 MHz; 88 - 108 MHz
Transmit power20 W5 W
Channels50032
Privacy codes (CTCSS / DCS)—260
CTCSS / DCS sub-tonesYesYes
Squelch—adjustable
Call tones—10
Power & battery
Battery capacity—1,800 mAh
Battery voltage—7.4 V
Power source—Rechargeable pack
USB-C charging—Yes
Battery level indicator—Yes
Design & durability
Weight—255 g
Width—134 mm
Height—62 mm
Depth—40 mm
Protection rating—IP67
Water protection (IPx)—IPx7
DisplayMonochrome displayNo display
Colours—Orange
Features
VOX (hands-free)YesYes
Channel scan—Yes
Emergency / SOS alarmYesYes
FM radio—Yes
Key lock—Yes
Roger beep—Yes
Monitor button—Yes
Voice encryption / scrambler—Yes
PC programmableYesYes
Connectivity
Headset / earpiece jack—Yes
Connectors—USB-C, 2,5 und 3,5 mm
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