Date: Sat, 17 Jan 2009 09:54:53 -0500
From: "dave.riley3" <dave.riley3@verizon.net>
To: <rsgb_lf_group@blacksheep.org>
Cc: "600MRG" <shmrg@piobaire.mines.uidaho.edu>
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Subject: LF: Re: Plug and Play
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correction   www.radiocom.net/600M/LOOP1107.jpg




----- Original Message ----- 
From: "dave.riley3" <dave.riley3@verizon.net>
To: <rsgb_lf_group@blacksheep.org>
Cc: "600MRG" <shmrg@piobaire.mines.uidaho.edu>
Sent: Saturday, January 17, 2009 8:32 AM
Subject: LF: Plug and Play


> At this stage of the game I've graduated to 'plug and play' RF 
> electronics, thanks to Mini-Circuits and like parts, all available for a 
> song on E-Bay.
>
> The IC706 made many trips so sea and was most useful as a duplex CW 
> transceiver on the marine CW and SITOR frequencies, and it is so old as to 
> be almost serial #1.
>
> The picture @ this link shows a scheme for 10kc-510kc transceive. It is 
> most self explanatory with the only hidden info is that I cut the B+ lead 
> to the final of the IC706 and so by magic the RF output level @ 10.500 
> mhz. dropped to 7 milliwatts, talk about luck and a happy mixer.
>
> www.radiocom.net/600M/TxVerter2.jpg
>
> The QRG is held to tight specs by use of the GPS diciplined clock 10mhz as 
> the LO input to the DB Mixer.
>
> On 500kc. I use the modified Ramsey 1W amp shown, followed by a modified 
> 200W Mitsubishi stereo amp with giant 900V FETS, and thence to a modified 
> SB200, now designated as a SB600M. The Greenlee punches around here are 
> all dull and old, so why start from scratch any more??
> Rework of junk commercial and military boxes is now the caper.
>
> www.radiocom.net/600M/SB600M3.jpg
>
> And here is the best TX antenna I have used so far here, free of any 
> ground radials and many top load wires hung up in trees, but only meant 
> for really poor soil conductivity mind you and that is < .5 millimho here 
> on silica soil. Always wondered how it would be to have an antenna in 
> 'free space'.
> It amounts to a 65' vertical of #4 wire inside garden hose and laid over 
> high pine trees. A free extra is that the loop is certainly more quiet 
> than the Marconi vertical. It also works DX up to 6M so we took all the 
> other wire antennas down. Life is getting simple, so we do.
>
> www.radiocom.net/600M/Loop1107.jpg
>
> Too much fun and not enuf air time!!  Even had a SKN QSO on 600M, ham 
> radio is still fun...
>
> Regards to all,
>
> Dave@WD2XSH/17
>
>
>
>
>