Transverting - Finished!

Well,

You may remember the 4M transverter I started making here:

http://g0mgx.blogspot.co.uk/2015/04/transverting-even-more.html

I mentioned that I was waiting for a zlpll from here:

http://zl2bkc.com/projects/zlpll/

to complete the project.

Well, it arrived today and I have installed it in the tranverter:

Marc, ON5VW was kind enough to offer me an on air test, so this is my signal as received in JO10 over the water in Belgium:

So that's the final proof of concept - all working as planed!

Good, egh?

Transverting - Complete!

Well,

The 4M Transverter I started back here:

http://g0mgx.blogspot.co.uk/2015/04/transverting-even-more.html

Is now **nearly** complete.I say nearly as I am still waiting for a ZLPLL board from here.

The interior has been completed and all wiring completed, here's a shot mid way though that process:

Now, you may remember that I have a Gemini 4M & 6M amplifier. Well, this was configured for a 25W drive level when I bought it, so I needed to modify it for the lower drive level of this transverter. The amplifier includes an attenuator which needed to be replaced. Here's a view of the Gemini with the covers removed:

In the photo above I have highlighted with a red circle the component that needed to be replaced. You can hopefully see that I have also had to remove the internal covers from the RF board screened enclosure to access the part.

Here's the RF board with the new attenuator installed:

This is working beautifully from the transverter now and giving me full power out from the transverter drive levels.

Good, egh?

Transverting - Even More More!

So,

Following from the start of the 4M Transverter project I posted about last time:

http://g0mgx.blogspot.co.uk/2015/04/transverting-even-more.html

I've done some more today.

The power amp module is built and mounted on the rear of the enclosure with an aluminium heat spreader:

The rest of the enclosure is prepared:

The internal wiring is almost complete, I've just run out of SMA cables - which is a bit of a bummer! I'm also waiting for the ZLPLL from here to complete the project properly.

Not a bad start though, egh?