status update

I have just build some of the components in the box.
The transverter/cb radio can now receive 160-10 meter. It can also transmit a tiny signal.

Multiband HAM to CB transverter

This is the starting point of the multiband HF to CB transverter.
The shown setup actually receives pretty well. I have tested it on 160,80 and 40. The other bands are closed during the night.

The components are:
-CB transceiver. It is modified it has 0.1 Milli Watt output.
-SDR kits VFO using si570.
-A bandpass filter for 160 to 10. Made in Russia, bought on Ebay.
-A HPF-501 mixer and a amplifier using a bfy 90. Using the same concept as my 40 meter to CB transverter.

That is enough to build a converter to CB. It should be able to transmit as well but I have not tried transmitting yet. It will probably put out 0.05 milli Watt.

I have a 5 Watt amplifier kit for 10 to 160 meter. This PA comes from box73 hamradio. I want to use it to amplify the signal to QRP level. The output of the transverter can not drive this amplifier so I need a small amplifier. I may use a MAR amplifier.

The PA kit does not include a heatsink so I will search the internet to get one.
Maybe the local electronic shops have a suitable one but I doubt it.

Lowpass filters are needed to filter the signal out ofthe PA. I already have one. Just another ebay purchase. It was part of a 100 watt HAM band transceiver so it should be suitable for my project. A picture of it will be posted soon.

One of the other projects I am working on is a QRP HF transceiver. I will combine both projects. After all only the LO and The IF frequency are different in those projects. The CB radio will be used on a fixed channel. The IF strip of the QRP transceiver uses 9 MHz. The SDR kits vfo can be setup for another IF offset by pressing a few buttons. It is a piece of cake.