Well done, Julian! I have replaced 455kHz NFM filter with a sharper slopes one, haven't done much testing either. Leo

If you are struggling, send the PCB over and I will put in for you. I am in Silverstone. I have 0402 caps. The smallest caps I have manually worked with are 0201 - they love falling down PCB vias, heh

Julian, Have you fixed it yet? It's a cap that passes IF 455/450kHz to the detector so not really "RF" or a critical value. Leo

I was wrong, the connector pitch is 0.5mm. I got it wrong because half the pins (13) are on one side and the other 13 are on the other. And the spacing between the PCB pin pads is 1.00mm. I got the 1.

I can believe that. Kenwood TNC is a reasonably standalone module (this is why I am using itseparately) but it frequently communicates with the rest of the system via internal dedicated serial port. I

From the service manual and internet pictures it looks like a 26 way vertical FFC connector with 1.00mm pitch. Have a look here https://www.digikey.com/products/en/connectors-interconnects/ffc-fpc-fla

Joe, I have just recently (this week) bought a spare TNC from D700 for a project - to play with. It came with a ribbon cable. I forgot it in the office but I will have a look while I am there over the

Do you have a high resolution picture of this part? Leo

Thanks, Lutz! Leo

Is there a way of overriding APRS beacon lat/lon coordinates with specified, rather than dynamic ones from internal GPS? Alternatively, is there a way of disabling internal GPS altogether? Thanks Leo