[600MRG] 630 meter transverter

Sun Jan 8 12:58:01 CST 2017

Dave:

Ya done real good, Kid!!!! :-)

To all (or at least some): "Go thou and do likewise."

I think I will.

Ken W7EKB

On 8 Jan 2017 at 13:53, Dave Riley wrote:

> Re: 630m transverter
> 
> Here is my first try at re-inventing the ham radio 630m wheel...
> Gone are the days of aluminum chassis and Greenlee punches, etc., so 
> from now on I take a piece of very good 'surplus' gear and replace the 
> insides with something like this:
> 
> http://www.radiocom.net/600M/TxVerter2.jpg
> 
> which became this:
> http://www.radiocom.net/600M/TxVerter3.jpg
> 
> I called it 'plug and play' and so far no squawks, but six years ago I 
> lost my wife ( she went straight up ) and ham radio became fallow ground.
> 
> A few years ago I dusted out the cob webs and started all over...
> 1. Using the venerable Icom IC706 which went to sea for years and used 
> with home brew 'transverters' on every band from 17.2 kcs. to 10 ghz...
>      Recently I copied Q5 sigs ( pencil and paper ) from the remaining 
> RF Alternator still on the air @ SAQ in Grimeton, Sweden...
>      It's nice to have all the features of a rig like the 706 which you 
> can also use literally from DC to light, in fact it even worked great on 
> 474 thz laser with NC1K QSO in Plymouth, Mass.
> 2. I had a cherry Ameco TX62 transmitter which was sacrificed first as a 
> linear amp for the FM band ( only used the final tube ) and that more 
> recently was changed to a high lever RF mixer between mixing the 10mhz. 
> from a GPS clock sine wave and the Icom running ssb on 10.475 mhz 
> yielding four watts to drive a converted Mitsubishi Stereo audio amp 
> capable of several hundred watts on 630 meters...
> 
> It's still plug and play and lots of fun, stay tuned for latest iteration...
> Now it starts with the IC706, a 20 db coax attenuator, bnc double 
> balanced mixer, home brew 7 element low pass filter for 600m, all amp'd 
> up to 1 watt and thence to a reworked Ramsey dual FET RFPA yielding an 
> easy clean 20 watts out ( more on this later )...
> Ham radio is alive and well and still great for building, re-learning, 
> and collecting automatic QSOs nightly using WSPR..
> 
> Life is good, 73s from DaveR AA1A, KC4USX, KSBK, and WD2XSH/17
> 
> INT QSO 50.4 AM IMI K
> 
> 
> 
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