1-2 MODEL CHART AND TECHNICAL SPECIFICATIONS
3.0 Technical Specifications
Data is specified for +25°C unless otherwise stated.
General Specifications
Channel Capacity
GP340
GP640
GP680
16
16 (Conventional)
16 (Conventional)
Power Supply Rechargeable battery 7.5v
Dimensions:  H x W x D (mm)  Height excluding knobs
With standard high capacity NiMH battery
With ultra high capacity NiMH battery
With NiCD battery
With Lilon battery
137 x 57.5 x 37.5
137 x 57.5 x 40.0
137 x 57.5 x 40.0
137 x 57.5 x 33.0
Weight: (gm)
With Standard high capacity NiMH battery
With Ultra high capacity NiMH battery
With NiCD battery
With Lilon battery
GP340/GP640 GP680
420 428
500 508
450 458
350 358
Average Battery Life @5/5/90 Cycle:
With Standard high capacity NiMH battery
With Ultra high capacity NiMH battery
With NiCD battery
With Lilon battery
 Low Power  High Power
11 hours  8 hours
14 hours  11 hours
12 hours  9 hours
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
Dust and Humidity: Protection provided via environment 
resistant housing exceeding MIL STD 
810 C/D /E and TIA/EIA 603