Overview of Philips FM-814 & FM-815 VHF/UHF FM base station transceivers.
Created 29th August 2003, last updated 14th December, 2012
FM815's are all UHF models and were built in the following bands:-
Tx815/T 400 - 420 MHz
Tx815/U 450 - 480 MHz
Tx815/W1 480 - 500 MHz
Tx815/W2 500 - 520 MHz
Rx815 Mk1 400 - 470 MHz T & U bands (with cap and xtal multiplication changes)
Rx815 Mk3 Same coverage range as for transmitters as shown above. These receivers were based on UHF FM828 mobile units.
Rx815 Mk4 These units are a mixture of FM828 (LO strip)& FM92 (frontend & IF) technologies and are superior units to Mk1
& Mk3 units. The U band units tune straight down to the 70cm band without modification & give commendable performance.
FM814 is the nomenclature used for the VHF units. They are based upon FM828 VHF mobile PCB's, with a 50W afterburner.
Models are as follows:-
A band 148 - 174 MHz VHF High Band
B band 118 - 136 MHz (from memory) These were built for use by DCA/Air Services use by their ground radio staff.
E band 70 - 85 MHz VHF Mid Band (formerly known as VHF Low Band)
G band 30 - 45 MHz VHF Low Band in three sub bands.
overview supplied by Paul VK1BX
NOTE: only licensed Amateur Radio operators can operate this modified equipment on assigned Amateur frequencies/bands.
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