If you're thinking about getting something going for our new 630m band, the following web resources may be of help to you.
There are a couple of 630m transmitters available on the commercial market that I know of.
JUMA , in Finland, offers the TX500, an extremely well engineered 60W Class D CW transmitter in kit form.
|JUMA TX500 Transmitter: http://www.jumaradio.com/juma-tx500/|
(Note: since posting this blog 2 years ago, VK3XDK's website is no longer present, so I am not sure if he is still able to provide this item)
|VK3XDK Linear Transverter: http://www.vk3xdk.net46.net/|
From the U.S.A., WA3ETD offers a Class D transverter (non-linear) in either prebuilt or kit form.
At 13.2VDC, an output of 19-22W is claimed from the single FET final amplifier. Full details can be viewed here.
|MF Solutions Transverter: https://wg2xka.wordpress.com/for-sale-wanted/|
Roger's (G3XBM) has been widely reproduced in the UK and makes a nice way to get on the band on CW or with WSPR. Although the final amplifier is non-linear, with a little experimentation, it could be put into a linear mode for PSK or the JT modes. Perhaps that is what M1GEO did, as his video shows the transverter being used on SSB.
|M1GEO's Homebrew Version of the G3XBM Xvrtr|