Motorola HT750 - Manual (Page 5)

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
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