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Last modified 2024-09-07

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Midland/Alan 507 "SpeakEasy"

A picture of Midland/Alan 507 ''SpeakEasy''

SPECIFICATIONS

GENERAL
Type:License-free LPD transceiver
Frequency range:433.075-434.775 MHz
Channels / tuning steps:69
Frequency stability:? ppm
Mode:FM
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: Max 100 mA
Antenna impedance / connector:50 ohm / Non-removable antenna
Dimensions (W*H*D):? mm (?")
Weight:? g (? oz)
Other features:Roger beep. Dual watch. Scanning.




RECEIVER SECTION
Receiver system: Double conversion superheterodyne
1st IF: 21.4 MHz
2nd IF: 455 KHz - Ceramic filter: CFW455EU
Sensitivity:
Selectivity:
Image rejection:
AF output power / speaker:? mW at ?% distortion / ? ohm
External speaker connector:




TRANSMITTER SECTION
RF output power:10 mW (ERP)
Modulation system:
Max FM deviation (Factory set):±5 KHz
Spurious emissions:Better than -? dB
Microphone impedance / connector:? ohm / ?
Microphone input level:? mV




MISCELLANEOUS
Manufactured:Philippines, 200x-200x (Discontinued)
Additional info:
Related documents: Schematic (256 Kb)
FM-IF: MC3361
PLL: TB31202FN
Modifications and fixes:
Reviews:
Options / Accessories:
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