Midland Radio P25 Transmitter Specifications, Rated RF Output Power Frequency Stability

Syn-Tech III P25 Portable Radio

OPERATION MANUAL

8.2Transmitter Specifications

TRANSMITTER SPECIFICATIONS

	VHF	UHF
Frequency Range	136-174 MHz	380-470 MHz
Frequency Separation	Full Bandsplit	Full Bandsplit
Channel Spacing	12.5 / 20 / 25 / 30 kHz	12.5 / 20 / 25 / 30 kHz
Frequency Step	2.5 / 3.125 kHz	2.5 / 3.125 kHz
Rated RF Output Power *	1-5 W	1-5 W
Frequency Stability *	± 2.5 ppm	± 1.5 ppm
(-30°C / +60°C; 25°C ref)
Modulation Limiting *
Analog 25 kHz channel	± 5.0 kHz	± 5.0 kHz
Analog 12.5 kHz channel	± 2.5 kHz	± 2.5 kHz
C4FM Modulation Fidelity **	≤ 2 %	≤ 2 %
RMS Error
C4FM Deviation	1800 ±100 Hz	1800 ±100 Hz
Spurious Emissions *	≤ -70 dBc	≤ -70 dBc
(Conducted and Radiated)
Audio Frequency Response *
(6 dB/Octave Pre-emphasis	+1, -3 dB	+1, -3 dB
from 300 to 3000 Hz)
Hum and Noise Ratio
Analog 25 kHz channel *	≥ 52 dB	≥ 46 dB
Analog 12.5 kHz channel *	≥ 46 dB	≥ 40 dB
Audio Distortion *	≤ 1 %	≤ 1 %

* Measured in the analog mode per EIA-603 under nominal conditions.

** Measured in the digital mode per TIA-102.CAAA under nominal conditions.

62

680-090-2041 Version 5.0

http://www.midlandradio.com