Received-SPF: neutral (gmail.com: 193.82.116.20 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org)
Message-ID: <001701c6a9d7$3cd395c0$b6838351@w4o8m9>
From: "James Moritz" <james.moritz@btopenworld.com>
To: <rsgb_lf_group@blacksheep.org>
References: <000001c6a99c$0848d120$e6a4c593@RD40002> <004501c6a9d1$a4953a20$6501a8c0@eagles>
Date: Mon, 17 Jul 2006 20:28:52 +0100
MIME-Version: 1.0
Subject: LF: RE: DFCW, power and time.
Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: 7bit
Sender: owner-rsgb_lf_group@blacksheep.org
Precedence: bulk
Reply-To: rsgb_lf_group@blacksheep.org
Status: O

Dear J, LF Group,

Checking the meter would definitely be a good idea - If you are putting out
a decent signal, there must be some current there somewhere! As you say
there should be about 1.4A at the TX output. Also a good idea to check if
anything is getting hot, but not with the carrier present!.

As far as other suggestions go, it is difficult to comment without knowing
how the system is connected up. Reading your past e-mails, I believe the
variometer is connected between antenna and ground, with part of the
windings out of circuit? Is the variometer still coupled to the feeder via a
link winding? How is the isolating transformer you recently added connected
into the system?

Cheers, Jim Moritz
73 de M0BMU

----- Original Message -----
From: J. Allen <vy1ja@northwestel.net>
To: <rsgb_lf_group@blacksheep.org>
Sent: Monday, July 17, 2006 7:48 PM
Subject: LF: Re: RE: DFCW, power and time.


> I have never taken the antenna current meter out of the circuit, so
perhaps
> it is time to put it in the coax inside the shack on the line going out to
> the antenna.  In a 50 Ohm system, the current should be 1.414 amps.  If I
> still see nearly no current, the problem is with the meter.
>
> How does that sound as a plan: check for heat, check the meter?
>
> Any other suggestions?
>
> J.
>
>
>
>