Uniden UM625C English Owners Manual - Page 49

Transmitter WHAM x 4 Base Transmitter, Receiver WHAM x 4 Base Transmitter

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Public Address/Listen Back Output Power @ Max. Volume PA1/PA2 Microphone Input 10mV, 1 KHz (4 Ω)25 watts PA1 + PA2 Microphone Input 10mV, 1KHz (2 Ω) 35 watts Listen Back Sensitivity (Hail 1/Hail 2) 5 mV WHAM x 4 Base Specifications Measurement Conditions Power Source External Antenna Impedance Test Temperature Reference Audio Output Power Audio Output Impedance 13.8 VDC 50 Ω 25°C±5°C 2W (Ext. SP) 4 Ω Transmitter Section - WHAM x 4 Base Transmitter Specification Unit RF Power (No Mod) dBm Audio Sensitivity (1KHz -3.1dBm0 Input) dBV Frequency Response 300Hz dB 3000Hz dB Distortion (15KHz LPF) % S/N Ratio (CCITT Filter) dB Deviation KHz Frequency Tolerance at 25°C PPM Nominal 4 -44 -1 -1 3 55 500 -92 Receiver Section - WHAM x 4 Base Transmitter Sensitivity 20dB SINAD (CCITT FILTER) dBm -92 Frequency Response 300Hz dB -1.5 3000Hz dB 0 Distortion (1KHz - 3.1 dBm0 Input) % 3 S/N Ratio (CCITT Filter) dB 55 Limit 0> -47~-41 -4~2 -4~2 40 399~621

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49
Public Address/Listen Back
Output Power @ Max. Volume
PA1/PA2 Microphone Input 10mV, 1 KHz (4
Ω
)25 watts
PA1 + PA2 Microphone Input 10mV, 1KHz (2
Ω
) 35 watts
Listen Back Sensitivity (Hail 1/Hail 2) 5 mV
WHAM x 4 Base Specifications
Measurement Conditions
Power Source
13.8 VDC
External Antenna Impedance
50
Ω
Test Temperature
25°C±5°C
Reference Audio Output Power
2W (Ext. SP)
Audio Output Impedance
4
Ω
Transmitter Section - WHAM x 4 Base Transmitter
Specification
Unit
Nominal
Limit
RF Power (No Mod)
dBm
4
0>
Audio Sensitivity (1KHz -3.1dBm0 Input)
dBV
-44
-47~-41
Frequency Response
300Hz dB
-1
-4~2
3000Hz dB
-1
-4~2
Distortion (15KHz LPF)
%
3
<5
S/N Ratio (CCITT Filter)
dB
55
>40
Deviation
KHz
500
399~621
Frequency Tolerance at 25°C
PPM
-92
<-87
Receiver Section - WHAM x 4 Base Transmitter
Sensitivity 20dB SINAD (CCITT FILTER)
dBm
-92
<-87
Frequency Response
300Hz dB
-1.5
-4.5~1.5
3000Hz dB
0
-3~3
Distortion (1KHz - 3.1 dBm0 Input)
%
3
<5
S/N Ratio (CCITT Filter)
dB
55
>50
Specifications