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GP338 Specifications
*Frequency Rang (MHz) 29-42 / 35-50 / 136-174 / 330-400 / 403-470 / 450-527
Channel Capacity 128 Channels
Power Supply Provided through rechargeable battery - 7.5V
WEIGHT: With Standard High Capacity NiMH Battery: 428 gm
With Ultra High Capacity NiMH Battery: 508 gm
With NiCD Battery: 458 gm
With LiIon Battery: 358 gm
 
AVERAGE BATTERY LIFE @ 5/5/90 CYCLE Low Power High Power
With Standard High Capacity NiMH Battery: 11 hours 8 hours
With Ultra High Capacity NiMH Battery: 14 hours 11 hours
With NiCD Battery: 12 hours 9 hours
With LiIon Battery: 11 hours 8 hours
Sealing: Withstands rain testing per MIL STD 810 C/D/E and IP54
Shock and Vibration: Protection provided via impact resistant housing exceeding
MIL STD 810-C/D/E and TIA/EIA 603
 
DIMENSIONS H x W x D
  (Radio footprint height excluding knobs)
  With Standard High Capacity NiMH Battery: 137mm x 57.5mm x 37.5mm
  With Ultra High Capacity NiMH Battery: 137mm x 57.5mm x 40.0mm
  With NiCD Battery: 137mm x 57.5mm x 40.0mm
  With LiIon Battery: 137mm x 57.5mm x 33.0mm
  (Radio footprint height excluding knobs)
Dust and Humidity:Protection provided via environment resistant housing exceeding
 MIL STD 810 C/D/E and TIA/EIA603
TRANSMITTER  
SPECIFICATION
Low Band VHF/UHF
*Frequency (MHz)
29 - 42, 35 - 42 136-174 / 330-400
  403-470 / 450-527
Frequency separation
Channel spacing		 Full bandsplit#
12.5 / 20 / 25kHz
Freq Stability:(-30oC to 60oC,+25oC Ref.)
Power
± 0.0010% +/- 0.00025%
6W 5W (VHF)
4W (UHF)
Modulation limiting
±4.0 @ 20kHhz,
±2.5 @ 12.5kHz
±5.0 @ 25kHz

FM Hum & Noise
Conducted/Radiated Emission
Modulation FCC Type
Audio Response
(from 6 dB/octave pre-emphasis 300-3000Hz)
Audio Distortion 		-40dB
-36 dBm < 1 GHz /
-30 dBm > 1 GHz
12.5 kHz 11K0 F3E / 25 kHz 16K0F3E +1 to -3dB
3%
RECEIVER  
SPECIFICATION
Low Band
VHF/UHF
*Frequency
Frequency separation
Sensitivity (12dB SINAD) EIA
Intermodulation (EIA) 		29 - 42, 35 - 42 136-174 / 330-400 /
403-470 / 450-527
Full bandsplit
.30µV .25µV
65dB 70dB
Adjacent Channel Selectivity

Spurious Rejection
Rated Audio
Audio Distortion 		60dB @12.5, 60dB @ 12.5kHz,
70dB @ 25kHz 70dB @ 25kHz

70dB
500 mW
3%
Hum and Noise
Audio Response (300-3000Hz)
Conducted Spurious Emission 		-45dB @ 12.5kHz, -50dB @ 25kHz
+1 to -3dB
-57dBm < 1Ghz, -47dBm > 1Ghz / FCC Part 15

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