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Last modified 2025-04-30

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SEA 157

A picture of SEA 157

SPECIFICATIONS

GENERAL
Type:Marine VHF transceiver
Frequency range: TX: 155-159 MHz
RX: 155-163.6 MHz
Tuning steps:Channelized
Frequency stability:±5 ppm @ -30 to +60°C (-22 to +140°F)
Mode:FM
Channels / memory management: All US, Canadian and international channels
NOAA weather channels
10 expansion channels
Priority function
Duplex shift / offset:Automatic according to bandplan
Power supply:13.8 VDC
Current drain / power consumption:RX: 600 mA
TX: Max 6 A
Antenna impedance / connector:50 ohm / SO-239
Dimensions (W*H*D):244*91*65 mm (9.6*3.6*2.56")
Weight:1.4 Kg (3 lb)
Other features: DSC. Channel 16/9 button. Dual watch. Scrambler. Weather alert.
Scanning. MariTEL ready. Clock. GPS option (NMEA).




RECEIVER SECTION
Receiver system: Double conversion superheterodyne
1st IF: ? MHz
2nd IF: ? KHz
Sensitivity:0.3 uV (12 dB SINAD)
Squelch sensitivity:
Selectivity:80 dB (Adjacent channel)
Image rejection:80 dB
AF output power / speaker:4 W at 10% distortion / 4 ohm
External speaker connector:




TRANSMITTER SECTION
RF output power: High: 25 W
Low: 1 W
Modulation system:
Max FM deviation (Factory set):±5 KHz
Spurious emissions:Better than -? dB
Microphone impedance / connector:? ohm / ?-pin
Microphone input level:? mV




MISCELLANEOUS
Manufactured:USA, 2007-201x (Discontinued)
Additional info:
Related documents:
Modifications and fixes:
Reviews:
Options / Accessories:
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