This is an interesting 403 MHz receiver unit that can easily be converted to other frquencies close to this or wider by changing the filters, originally it was aprt of a satellite transmit and receive system, we do have the transmitter boards and the pair match each other by means of a header, no circuit diagrams but really interesting board either for parts or just to study the theory.
Unit has 2 toko filters at about 400Mhz and it looks like a third smaller so it might be IF high to solve image problems.
Mini Circuits TUF-1LH mixer various toko |MC120 coils a MC13135DW PLL plus various filters.
Could be used for small link receivers private comms etc. useful board, PLL could be cropped off for other projects
There is a diagram that a buyer has sent to us which may be of help for future buyers
We have recently increased our prices. For some of our parts the price is listed in the item title , for example: 10uf 16v capacitors Item 140, 100 pieces for £1.00, we have been unable to change this. The quantities per order are correct but please look at the buy it now for correct price.
Our postage prices have changed as Royal Mail has increased their prices. They have also changed their postal weight groups, so we have tried to change our pricing accurately but we will be checking our orders to make sure they are correct. We add £1.00 for packaging and handling so if your order arrives and you have been charged more than this, then please let us know so that we can refund you and change item listing. Thank you.