1-8 UHF Specifications
December, 2009 68009328001-A
1.8 UHF Specifications
General
Transmitter
Receiver
All specifications are subject to change without notice.
UHF
Frequency: 403–440 MHz
438–470 MHz
465–496 MHz
Channel Capacity: 128 Channels
Power Supply: 7.5 Volts ±20%
Dimensions with:
High Capacity  NiCd, 
High Capacity Li-Ion,
NiMH Std, and Slim Li-
Ion Batteries
130.5mm H x 62mm W x 
45mm D
(5.12” H x 2.4” W x 1.75” D)
Weight:
High Capacity  NiCd, 
High Capacity Li-Ion,
NiMH Std, 
Slim Li-Ion 
451g (15.91 oz.)
396g (13.97 oz.)
467g (16.47 oz.)
397g (14.0 oz.)
Average Battery Life 
@ (5-5-90 Duty
Cycle):
High  Capacity NiCd
High Capacity Li-Ion 
NiMH Std
Slim Li-Ion
Capacity
(mAh)
1100
1800
1400
1600
4 W
8 Hrs.
14 Hrs.
10 Hrs.
12 Hrs.
1 W
9 Hrs.
19 Hrs.
13 Hrs.
17 Hrs.
UHF
RF Output
NiMH @ 7.5 V:
Low
1 W
High
4 W
Frequency: 403–440 MHz
438–470 MHz
465–496 MHz
Channel Spacing: 12.5/20/25 kHz
Freq. Stability:
(-30°C to +60°C)
0.00025%
Spurs/Harmonics: -36 dBm < 1 GHz
-30 dBm > 1 GHz
Audio Response:
(from 6 dB/oct. Pre-
emphasis, 300 to 
3000 Hz)
+1, -3 dB
Audio Distortion:
@ 1000 Hz, 60%
Rated Max. Dev.
<3%
FM Noise: -40 dB (12.5 kHz)
-45 dB (25 kHz)
UHF 
12.5 kHz
UHF 
20/25kHz
Frequency: 403–440 MHz
438–470 MHz
465–496 MHz
Sensitivity
12 dB EIA SINAD:
0.25 μV (typical)
Adjacent Channel 
Selectivity:
-60 dB -70 dB
Intermodulation: -70 dB
Freq. Stability
(-30°C to +60°C):
0.00025%
Spur Rejection: -75 dB
Image and 1/2 I-F 
Rejection:
-70 dB
Audio Output
@ <5% Distortion:
500 mW