Transmitter Specifications
9K80D7D, 16K0F3E, 11K0F3E, 16K0F1D,
10K0F1D
Adjacent Channel Power Ratio
12.5 kHz offset, 6 kHz BW: 67 dB
Tx Noise in Rx Band 142 dBc/Hz
Intermodulation Attenuation 65 dB
* Full transmitter output power is available during battery revert.
NOTICE: The output power reference plane is the output connector of the power amplifier. The
loss of the transmitter output cable (PA output to back of base radio) is 3% at 450 MHz.
However, the base radio software allows the transmitter output power to be set at 10% above
rated value. If more than 70 dB Intermodulation Attenuation is required at a site, an external
circulator should be added to the transmitter output.
Table 10: GTR 8000 Base Radio Specifications for IV&D UHF R1 (380–435 MHz)
Receiver Specifications
Frequency Range 380–435 MHz
Modulation C4FM, H-CPM, FM
Analog Sensitivity (12 dB SINAD)
12.5 kHz: -118 dBm
25 kHz: -117 dBm
Digital Sensitivity 5% Bit Error Rate Static
(BER)
C4FM: -118 dBm
H-CPM: -116 dBm
Faded Sensitivity 5% Bit Error Rate (BER)
C4FM: -110 dBm
Intermodulation Rejection 85 dB
Digital Adjacent Channel Rejection 60 dB
Analog Adjacent Channel Rejection (EIA603)
Analog 12.5 kHz
75 dB
Analog Adjacent Channel Rejection (TIA603D) Analog 12.5 kHz: 50 or 60 dB (adjustable)
Analog 25 kHz: 80 dB
Spurious and Image Response Rejection 85 dB
100 dB with preselector
Analog Audio Response +1, -3 dB from 6 dB per octave de-emphasis;
300–3000 Hz referenced to 1000 Hz at line out-
put
Analog Audio Distortion 3% or 5% (adjustable)
Analog FM Hum and Noise
MN003286A01-E
Chapter
1: GTR 8000 Base Radio Description
47
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