[Elecraft] DC-supply for a preamp?

[WILLIS COOKE]

That wouldn't quite reach the ground from my antenna but LMR600 has good specs.  How are the connectors to work with?  Do you need a flex jumper at the antenna to allow the rotor to work?  I am using 230 feet of RG-213 which has about 3.5 loss according to the specs.  It works, but I don't do Moon Bounce with it.
 Willis 'Cookie' Cooke 
K5EWJ 




________________________________
From: Ken Roberson <kwroberson at yahoo.com>
To: WILLIS COOKE <wrcooke at yahoo.com>
Sent: Tue, April 27, 2010 12:09:15 PM
Subject: Re: [Elecraft] DC-supply for a preamp?

Hello,
I'm using About 65 ft LMR-600, and Elecraft 6M preamp,This
seems to work ok.

73 Ken K5DNL

--------------------------------------------------------------

--- On Tue, 4/27/10, WILLIS COOKE <wrcooke at yahoo.com> wrote:

> From: WILLIS COOKE <wrcooke at yahoo.com>
> Subject: Re: [Elecraft] DC-supply for a preamp?
> To: w7gj at q.com, "DM4iM" <hamradio at vr-web.de>, "Reflector Elecraft" <Elecraft at mailman.qth.net>
> Date: Tuesday, April 27, 2010, 12:02 PM
> Lance, what kind of coax are you
> using that only has one dB loss at six meters?  7/8" Heliax
> would do it, but LMR-400 would not unless you could keep the
> run under 100 feet.
>  Willis 'Cookie' Cooke 
> K5EWJ 
> 
> 
> 
> 
> ________________________________
> From: Lance Collister <w7gj at q.com>
> To: DM4iM <hamradio at vr-web.de>;
> Reflector Elecraft <Elecraft at mailman.qth.net>
> Sent: Tue, April 27, 2010 11:25:52 AM
> Subject: Re: [Elecraft] DC-supply for a preamp?
> 
> On 4/27/2010 2:32 PM, DM4iM wrote:
> > Elecrafters,
> > this might be a rig-killer and vy stupid, but....
> >
> > Can i power a 6m masthead-preamp by feeding dc via
> choke and coupling
> > C's to the KXV3A's in/out sockets (where the elecraft
> preamp is supposed
> > to sit), or is this a big NONO?
> >
> > Martin
> >
> Hello Martin,
> 
> I think you could do better by simply installing the PR6 at
> the K3 and using low 
> loss coax to the antenna.  Almost all the 6m EME stations
> around the world use a 
> good external preamp in the shack.  If your coax cable
> loss is 1 dB or less, you 
> will not gain anything by mounting the 6m preamp at the
> antenna.
> 
> You can model this for yourself in the EME CALCULATOR
> (accessed from the EME ECHO 
> MODE screen in the old WSJT Version 4). Because the EME
> CALCULATOR and EME ECHO 
> MODE were never re-written in the language used in more
> recent revisions of WSTJ, 
> that old version is still available:
> 
> http://www.physics.princeton.edu/pulsar/K1JT/WSJT498.EXE
> 
> I think you will find it much simpler to keep the preamp in
> the shack!  GL and VY 
> 73, Lance
> 
> -- 
> Lance Collister, W7GJ (ex: WN3GPL, WA3GPL, WA1JXN,
> WA1JXN/C6A, ZF2OC/ZF8, E51SIX)
> P.O. Box 73
> Frenchtown, MT  59834  USA
> QTH: DN27UB
> TEL: (406) 626-5728  URL: http://www.bigskyspaces.com/w7gj
> LIVE MESSENGER CHAT: w7gj at hotmail.com
> 2m DXCC #11, 6m DXCC #815
> 
> Interested in 6m EME?  Ask me about subscribing to the
> Magic Band EME email!
> http://6meme.com/mailman/listinfo/magic_6meme.com
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> 
> 
> 
>       
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>