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  3. RT1050 AIS vs RS20S

Navicom RT1050 AIS vs Simrad RS20S

What RT1050 AIS does better (1) and where RS20S wins (0) — every spec side by side.

Navicom RT1050 AIS
Navicom · 2025RT1050 AIS
5.6Score
1 advantage≈ £420
Higher score
vs
Simrad RS20S
Simrad · 2025RS20S
5.4Score
0 advantages≈ £360
4.0Ruggedness3.6
7.3Features7.3
Dimensions

Size comparison

RT1050 AISRS20S
91 × 18055167 × 16189
RT1050 AISRS20SDifference
Height180 mm161 mm+19 mm
Width91 mm167 mm−76 mm
Depth55 mm89 mm−34 mm
Weight935 g1,180 g−245 g

Drawn to the same scale from the official dimensions (front and side).

Why is RT1050 AIS better than RS20S?

  1. Weight935 g vs 1,180 g+26%

Why is RS20S better than RT1050 AIS?

RS20S has no measurable advantages in this pair.

Specifications

Side by side

Navicom RT1050 AISNavicom RT1050 AIS≈ £4205.6
Simrad RS20SSimrad RS20S≈ £3605.4
Radio & range
Radio standardsAmateur VHF, Marine VHFAmateur VHF, Marine VHF
Frequency ranges161.975 - 162.025 MHz156.050 - 163.275 MHz
Transmit power25 W25 W
Squelchadjustableadjustable
Power & battery
Battery voltage13.8 V12 V
Power sourceMains / 12 V vehicleMains / 12 V vehicle
Design & durability
Weight935 g1,180 g
Width91 mm167 mm
Height180 mm161 mm
Depth55 mm89 mm
Protection ratingIPX7IPX7
Water protection (IPx)IPx7IPx7
DisplayBacklit displayBacklit display
ColoursBlackBlack
Features
Channel scanYesYes
Dual watchYesYes
Emergency / SOS alarmYesYes
GPSYesYes
Connectivity
Headset / earpiece jackYesYes
Radios in the base pack11
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