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Last modified 2023-08-25

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RadioShack Pro-2055 (20-428)

A picture of RadioShack Pro-2055 (20-428)

SPECIFICATIONS

GENERAL
Type:VHF/UHF receiver/scanner
Frequency range: 25-54 / 108-174 / 216-512 / 806-824 / 849-869 / 894-960 / 1240-1300 MHz (USA)
Tuning steps:5 / 6.25 / 7.5 / 8.33 / 12.5 / 25 KHz (Depending on band)
Frequency stability:? ppm
Mode:AM / FM
Channels / memory management: 1000 regular in 10 banks @ up to 60 channels per second
Alpha tags
Service search banks
Non volatile EEPROM storage
Power supply:13.8 VDC
Current drain / power consumption:600 mA
Antenna impedance / connector:50 ohm / BNC
Dimensions (W*H*D):185*55*135 mm (7.25*2.25*5.31")
Weight:790 g (1.74 lb)
Other features: Trunking: Motorola I/II/II, EDACS and LTR.
Signal Stalker II. Weather alert SAME/FIPS. Skywarn. CTCSS/PL and DCS.
Attenuator (20 dB). Cloning. PC programmable.




RECEIVER SECTION
Receiver system: Triple conversion superheterodyne
1st IF: 380.8 MHz
2nd IF: 21.4 MHz
3rd IF: 455 KHz
Sensitivity: AM (20 dB S/N)
25-54 MHz: 1 uV
108-137 MHz: 1 uV
137-174 MHz: 1.5 uV
216-225 MHz: 3 uV
406-512 MHz: 2 uV
806-960 MHz: 2 uV
1240-1300 MHz: 3 uV
FM (20 dB S/N)
25-54 MHz: 0.3 uV
108-137 MHz: 0.3 uV
137-174 MHz: 0.5 uV
216-225 MHz: 1 uV
406-512 MHz: 0.5 uV
806-960 MHz: 0.7 uV
1240-1300 MHz: 0.7 uV
Selectivity: AM/FM except AM 25-28 MHz
20 KHz (-6 dB)
36 KHz (-50 dB)
AM 25-28 MHz
10 KHz (-6 dB)
12 KHz (-50 dB)
Image rejection:
AF output power / speaker:1.5 W at 10% distortion / 8 ohm
External speaker connector:




MISCELLANEOUS
Manufactured:China (By GRE), 2005-200x (Discontinued)
Additional info: FCC ID: ADV2000428
Related documents:
Modifications and fixes:
Reviews:
Options / Accessories:
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