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Last modified 2024-09-05

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RadioShack 21-1840

A picture of RadioShack 21-1840

SPECIFICATIONS

GENERAL
Type:License-free FRS transceiver
Frequency range:462.5625-467.7125 MHz
Channels / tuning steps:14
Frequency stability:? ppm
Mode:NFM
Memory channels / management:
Repeater shift / offset:Simplex only
Power supply:3.6-4.5 VDC (Three R6 / AA alkaline or rechargeable batteries)
Current drain / power consumption:RX: ? mA
TX: ? mA
Antenna impedance / connector:50 ohm / Non-removable antenna
Dimensions (W*H*D):? mm (?")
Weight:? g (? oz)
Other features:CTCSS/PL.




RECEIVER SECTION
Receiver system: ? conversion superheterodyne
Sensitivity:
Selectivity:
Image rejection:
AF output power / speaker:? mW at ?% distortion / Headset operation only
External speaker connector:




TRANSMITTER SECTION
RF output power:? mW (ERP)
Modulation system:
Max FM deviation (Factory set):±2.5 KHz
Spurious emissions:Better than -? dB
Microphone impedance / connector:? ohm / ?
Microphone input level:? mV




MISCELLANEOUS
Manufactured:199x-xxxx (Discontinued)
Additional info:
Related documents:
Modifications and fixes:
Reviews:
Options / Accessories:
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