SEA Inc of Delaware SEA157 Manuel D’Utilisation

2

SEA  157 SPECIFICATIONS:

2.1

GENERAL

FREQUENCY RANGE:

TX 155-159 MHz
US TX 156.0-157.5 MHz
RX 155-164 MHz

FREQUENCY RESOLUTION:

25 KHz

CHANNELS:

All US, Canadian, Int'l
plus 10 WX

POWER REQUIREMENT:

Voltage, 12 V +30, -10%

NOTE: Basic radio Circuitry

13.6 volts nominal neg-

operates at 12 volts.

ative ground.

CURRENT:

(12 Volt operation) Max TX:

5.5 amps (25W)
1.0 amps (1W)

RX (STBY) 0.4 amp
RX (Max Audio  1 amp

FUSES:

(12 Volt operation) 7.5 amp, external line

2.2

TRANSMITTER

EMISSION:

16K0G3E (Voice)
13K5G2B (DSC)

POWER OUTPUT:

25W, 1W into 50 ohms

SPURIOUS EMISSIONS:

-80 dB or better

SPURIOUS RADIATION:

Complies with FCC 80.211(f)

AUDIO HARMONIC DISTORTION:

10% max.  (EIA)

AUDIO FREQUENCY RESPONSE:

+1,-3 dB of +6 dB/octave
preemphasis 300-3000 Hz

HUM AND NOISE:

50 dB (EIA)

FREQUENCY DEVIATION:

5 KHz max. peak

CARRIER FREQUENCY STABILITY:

+5 ppm, -30 to +60 C
(FCC, EIA)

TRANSMITTER ATTACK TIME:

< 100 milliseconds (EIA)

2-1