Uniden UM-525 - Manual (Page 48)

48
Transmitter - Marine Radio
Power Output
LO 1 watt
HI 25 watts
Power Requirement (Output)
LO Not rated
HI 5.6A at 13.8V DC
Modulation FM ±5 kHz deviation (FCC designator F3E)
Audio Distortion Less than 8% with 3 kHz deviation with 1000 Hz modulating frequency
Spurious Suppression -25 dBm @ Hi, -25 dBm @ Lo
Output Power Stabilization Built-in automatic level control (ALC)
Frequency Range 156 to 158 MHz
Frequency Stability ±5 ppm @ -20°C to + 50°C
Receiver - Marine Radio
Frequency Range 156 to 163 MHz
Sensitivity 0.25 µV for 12 dB SINAD
Circuit Dual Conversion Super Heterodyne PLL
Squelch Sensitivity 0.2 µV (nominal) Threshold
Spurious Response 90 dB
Adjacent Channel Selectivity 80 dB @ ±25 kHz
Audio Output Power INT SP 1.8 watts (10% Distortion)
Power Requirement 450 mA @ 13.8V DC squelched, 1.4A @ 13.8V DC at maximum audio
output
IF Frequencies 1st 45 MHz, 2nd 450 kHz
Inter Modulation Immunity 80 dB
Image rejection (1st and 2nd) 80 dB
IF Rejection (1st and 2nd) 80dB
Hailer/Fog Horn
Output Power @ 400 Hz Max. Volume (Horn 1 / Horn 2 @4
Ω
) 25 watts
(Horn 1 + Horn 2 @2
Ω
) 35 watts
Specifications