Got one airband receiver kit from a popular an auction site,
(kit's are cheaper now from what I've seen)
Kit includes everything and even some extra components (better more than less).
It worked first time after assembly. Already with that in mind (or as standalone in case of failure) decided to convert it to use the Si5351 clock generator IC, re-using the airband VFO box I made to convert the PAE receiver from single channel to VFO. The Park Air Electronics receiver conversion wasn't successful because of the low range of the internal VFO without manually retuning the coil so the box and the inner Arduino was kind of redundant:
The PAE airband receiver, single channel selection by dip switch's. for what the air band vfo box project was initial intended:
So for the Airband kit I place the Si5351 (and the kit itself) inside the airband vfo box and changed the code from the DIP connections to the clock programming of the Si5351. The connection to the airband receiver kit mixer from the Si5351 is strait forward and worked first time:
For the in place kit connection on the PCB what needs to be changed is the connection to NE602 on pin 6 and pin 7, applying the VFO signal on pin 6 of the NE602, the oscillator part (in the kit) is removed by means of disconnecting pin 6 and 7 to the main board..
..using a simple adapter to be inserted inline without modifications on the PCB :
The kit without adapter
Final product with adapter in place and connected to the Si5351:
Still no external squelch and volume on the box (mid and right pot's) because I don't have a drill around....
The power will be provided from the Park Air electronics receiver, that will remain single channel, so when I power it on will get that channel and another one I can select on the new airband kit.
Have a nice week!