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Last modified 2009-01-16

Midland/Alan 507

Type:License free LPD transceiver
Frequency range:433.075-434.775 MHz, 69 channels (25 KHz steps)
Mode:FM
RF Power output:Max 10 mW ERP
After modification: >300 mW
Receiver system:Dual conversion superheterodyne
1st IF: 21.4 MHz
2nd IF: 455 KHz - Ceramic filter: CFW455EU
Sensitivity:N/A
Selectivity:N/A
Image rejection:N/A
Voltage:3.6-4.5 VDC (3*LR6)
Current drain:RX: Max ? mA
TX: Max 100 mA
Impedance:Built-in antenna
Dimensions (W*H*D):50*100*30 mm
Weight:100 gr (without batteries)
Manufactured:Philippines, 200x-200x
Other:Roger beep, scan & dual watch
Related documents:Schematic (256 Kb)
FM-IF: MC3361, PLL: TB31202FN
Modifications: