This complete, tested FM828 A Band receiver board has been carefully removed from a A type FM828 transceiver which was fitted with a multi-channel oscillator module.
The receiver module being offered has not been modified (but there is tons of information on undertaking mods and NO SMD to contend with!)
I have other FM828 series components, boards etc HERE - time to do some experimentation with this nice old analog communications technology!
PHILIPS - Receiver PCB/Module
Type: FM828 A Band (Mk2)
Part # 3052 309 92141
Removed from a multi-channel transceiver
146Mhz ~ 175Mhz design frequency range
Analog - not a hint of digital technology in these units!
Dimensions: 170mm x 78mm x 24mm
Weight: 200g
Nicely engineered (the old fashioned way using single sided PCB, discrete components, no SMD) and numerious PCB numbered pins for external connections (reference to the readily available manuals online indicate which pin does what)
Plenty of manuals, discussion forums online talk about the FM828 (after almost 50 years these things just keep on going!)
COSMETIC CONDITION:
PCB is clean and it doesn't appear to have been 'worked on'
Clear plastic insulation sheet on the solder side of the PCB has been left intact.
All interconnection wiring has have been removed except the very small diameter coax for the input signal.
PLEASE NOTE THAT I AM NOT SUPPLYING ANY REMOVABLE CRYSTALS with this module.
TESTING:
Immediately prior to carefully dismantling the FM828, I set it up to test the RX side of things using a crystal I found which was suitable for the purpose. Fired up my RF signal generator and received carrier signal with this RX board - all fine. This board has the 10.7Mhz IF and I believe the bandwidth is 25Khz (wideband) - NDK are still in operation (Japan) but I cannot locate any information on these old filter part numbers.
Crystal filter fitted:
NDK
10P17D
10.7MHZ
2502
I have now packed this board into sealed plastic.
So there you have it, yes it's crystal locked but perhaps someone can see potential in this unit - getting it going just for fun or experimentation.
