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Last modified 2023-08-21

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RadioShack Pro-136 (20-136)

A picture of RadioShack Pro-136 (20-136)

SPECIFICATIONS

GENERAL
Type:HF/VHF/UHF receiver/scanner
Frequency range: 25-54 / 88-174 / 380-512 MHz (USA)
Also TV-channel audio on VHF
Tuning steps:5 / 6.25 / 12.5 / 100 KHz (Depending on band)
Frequency stability:? ppm
Mode:AM / FM / WFM
Channels / memory management: 200 regular in 10 banks @ 53 channels per second
5 service banks
50 skip
Priority function
NOAA weather channels
Power supply:12 VDC (Barrel connector, center positive)
Three LR6 / AA batteries for clock backup and short-term scanning
Current drain / power consumption:110-280 mA
Antenna impedance / connector:50 ohm / BNC
Dimensions (W*H*D):210*75*145 mm (8.4*2.3*5.8")
Weight:550 g (1.21 lb)
Other features: Alarm clock. Weather alert, FIPS, SAME and Skywarn.
Data cloning. PC programmable.




RECEIVER SECTION
Receiver system: Triple conversion superheterodyne
1st IF: 265.5 MHz
2nd IF: 10.8 MHz
3rd IF: 450 KHz
Sensitivity: FM (20 dB S/N @ 3 KHz deviation)
28-54 MHz: 0.3 uV
137-174 MHz: 0.4 uV
400-512 MHz: 0.5 uV
AM (20 dB S/N @ 60% modulation)
25-28 MHz: 1.0 uV
108-137 MHz: 1.1
380-400 MHz: 1.2 uV
WFM (20 dB S/N @ 22.5 KHz deviation)
88-108 MHz: 0.7 uV
TV-sound (20 dB S/N @ 45 KHz deviation)
VHF-Lo: 0.8 uV
VHF-Hi: 0.8 uV
Selectivity:
Image rejection:
AF output power / speaker:1.1 W at ?% distortion / 8 ohm
External speaker connector:




MISCELLANEOUS
Manufactured:China, 2004-200x (Discontinued)
Additional info:
Related documents:User manual (615 KB)
Modifications and fixes:
Reviews:
Options / Accessories:
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