RigPix logo

Midland logo


Back to main

Back to Midland

Next receiver/scanner


Copyright logo


Last modified 2025-08-19

Valid HTML 4.01 Transitional

Midland 13-903

A picture of Midland 13-903

SPECIFICATIONS

GENERAL
Type:UHF receiver/scanner
Frequency range: 450-470 MHz
Tuning steps:Channelized
Frequency stability:? ppm
Mode:FM
Channels / memory management: 4 regular @ 12 channels per second
Channel 1 bypass switch
One XTAL per channel (HC-25U)
Power supply:4.8-6 VDC (Four R6 / AA alkaline or NiCd batteries)
or 6 VDC external, TS "Minijack" (3.5 mm)
Current drain / power consumption:25-120 mA
Antenna impedance / connector:50 ohm / Threaded socket
or 50 ohm / TS "Subminijack" (2.5 mm)
Dimensions (W*H*D):70*136*35 mm (2.75*5.38*1.38")
Weight:283 g (10 oz), without batteries
Other features:Charging jack.




RECEIVER SECTION
Receiver system: Double conversion superheterodyne
1st IF: 10.7 MHz
2nd IF: 455 KHz
Sensitivity:0.5 uV (20 dB quieting)
Squelch sensitivity:0.5 uV (Threshold)
Noise figure:
Selectivity:60 dB (Adjacent channel)
Image rejection:60 dB
AF output power / speaker:250 mW at 10% distortion / ? ohm
External speaker connector:TS "Minijack" (3.5 mm)




MISCELLANEOUS
Manufactured:Japan, 1974-197x (Discontinued)
Additional info:
Related documents:
Modifications and fixes:
Reviews:
Options / Accessories:
18-106
18-112
18-243
AC adapter. 110-120 VAC to 6 VDC, 200 mA
Battery charger for in-unit recharging
Coil loaded UHF rubber antenna