HT750 and HT1250
Specifications
Factory Mutual Approvals
The HT Series is Factory Mutual approved and Canadian Standard Association approved as
intrinsically safe for use in Classes I, II, and III, Division 1, Groups C, D, E, F and G, as well as
non-incendive use in Class I, Division 2, Groups A, B, C and D on models ordered with the Factory
Mutual option, and battery.
General Specifications
Low Band
VHF
UHF
HT750 Channel Capacity
4 or 16
HT1250 Channel Capacity
128
Power Supply
Rechargeable battery 7.5V
Dimensions: H x W x D
With NiMH High Capacity Battery
5.40 in x 2.26 in x 1.50 in (137mm x 57.5mm x 37.5 mm)
With impres NiMH Battery
5.40 in x 2.26 in x 1.60 in (137mm x 57.5mm x 40 mm)
With impres NiMH FM Battery
5.40 in x 2.26 in x 1.60 in (137mm x 57.5mm x 40 mm)
With impres Li-ion Battery
5.40 in x 2.26 in x 1.30 in (137mm x 57.5mm x 40 mm)
Weight:
With NiMH High Capacity Battery
15.0 oz. (420g)
With impres NiMH Battery
17.5 oz. (488g)
With impres NiMH FM Battery
17.5 oz. (488g)
With impres Li-ion Battery
12.8 oz. (358g)
Average Battery Life
@ 5/5/90 Duty Cycle*:
Low
High
Low
High
Power Power
Power Power
With NiMH High Capacity Battery
11 hrs
8 hrs
11 hrs
8 hrs
With impres NiMH Battery
17 hrs
11 hrs
17 hrs
13 hrs
With impres NiMH FM Battery
16 hrs
10 hrs
16 hrs
13 hrs
With impres Li-ion Battery
18 hrs
11 hrs
18 hrs
14 hrs
FCC description
AZ489FT3794 (136-174 MHz)
AZ489FT4826 (403-470 MHz), AZ489FT4834 (450-512 MHz)
AZ489FT1625 (29.7-42 MHz, 42-50 MHz)
Receiver
Specifications
Low Band
VHF
UHF
Frequencies
29.7–42 MHz
136–174 MHz
403–470 MHz
35–50 MHz
450–512 MHz
Hum and Noise
-45 dB @ 20/25 kHz -45 dB @ 12.5 kHz, -50 db @ 25 kHz
Sensitivity (12 dB SINAD) EIA
.30 µV
.25 µV
Sensitivity (20 dB SINAD) ETS
.50 µV
HT750 Channel Spacing
20/25 kHz
12.5/20/25 kHz
HT1250 Channel Spacing
20/25 kHz
12.5/15/20/25/30 kHz
PLL Steps 2.5, 3.125 kHz
Intermodulation
70 dB
Adjacent Channel Selectivity
60 dB @ 12.5 kHz/70 dB @ 25 kHz
Spurious Rejection
70 dB
Rated Audio
0.5 W
Audio Distortion @ Rated Audio
3% typical
Audio Response (300 – 3000 Hz)
+1 to -3 dB
Conducted Spurious Emission
-57 dBm < 1 GHz
FCC Part 15
-47 dBm > 1 GHz
Transmitter
Specifications
Low Band
VHF
UHF
Frequencies
29.7–42 MHz
136–174 MHz
403–470 MHz
35–50 MHz
450–512 MHz
Power Output
1–6 W
1–5 W
1–4 W
Frequency Stability
±10 ppm
±5 ppm @ 25 kHz
(-30° C to +60° C, +25° Ref.)
±2.5 ppm @ 12.5 kHz
Modulation Limiting
+ 5.0 @ 20 kHz
±2.5 @ 12.5 kHz/±4.0 @ 20 kHz/
+5.0 @ 25 kHz
Spurs/Harmonics
-36 dBm < 1 GHz
-30 dBm > 1 GHz
Channel Spacing
20/25 kHz
12.5/20/25 kHz
FM Hum & Noise
-40 dB typical
Adjacent Channel Power
- 60 dB @ 12.5, -70 dB @ 25 kHz
Audio Response (300 – 3000 Hz)
+1 to - 3 dB
Audio Distortion
3%
FM Modulation
25 kHz
12.5 kHz 25/30 kHz 12.5 kHz 25 kHz
16KOF3E
11KOF3E 16KOF3E 11KOF3E 16KOF3E
Portable Military Standards 810 C, D, & E
Applicable MIL-STD
810C
810D
810E
Methods Procedures
Methods Procedures
Methods Procedures
Low Pressure
500.1
1
500.2
2
500.3
2
High Temperature
501.1
1,2
501.2
1,2
501.3
1,2
Low Temperature
502.1
2
502.2
1,2
502.3
1,2
Temperature Shock
503.1
1
503.2
1
503.3
1
Solar Radiation
505.1
1
505.2
1
505.3
1
Rain
506.1
1,2
506.2
1,2
506.3
1,2
Humidity
507.1
2
507.2
2,3
507.3
2,3
Salt Fog
509.1
1
509.2
1
509.3
1
Dust
510.1
1
510.2
1
510.3
1
Vibration
514.2
8,10
514.3
1
514.4
1
Shock
516.2
1,2,5
516.3
1,4
516.4
1,4
Environmental Specifications
Operating Temperature
-30 to +60° C
Storage Temperature
-55 to +85° C
Humidity
95% RH @ 8 Hr.
ESD
IEC 801-2 KV
Water Intrusion
IP54
5
