Re: LF: Re: another good night for TA reception

["Douglas D. Williams" <kb4oer@gmail.com>]

Correction: The LF Converter has an OCXO, not a TXCO (whatever that is).

Never try to type while someone is talking to you. ;-)

D.

On Sun, Jan 1, 2012 at 8:03 AM, Douglas D. Williams <kb4oer@gmail.com> wrote:

Mal,

I am currently using an active e-probe antenna that was made by Jack
Smith at Clifton Laboratories. I asked him to custom modify this one
to be more sensitive than his standard version below 10 kHz, because I
plan to use it to try to receive a TA signal on your "dreamer's band".
He was able to make it quite sensitive down to 3 kHz at the expense of
using some parts with a lower voltage rating, so I have to be careful
not to short out the coax, etc. It is located about 15 meters from my
house and the base of the antenna is a mere 3 meters above ground, and
about 10 meters from the treeline.

http://i81.photobucket.com/albums/j231/Goranothos/antenna.jpg

My receiver is an Icom R75 (with CW filters), preceded by an LF
Converter of AMRAD design with a TXCO for frequency stability,
preceded by a 500 kHz low pass filter.

I also have a Wellbrook LFL1010, which is not currently in service,
but since this season is starting off so well, I may put it back up
for comparison with the e-probe.

Over the years, I have used several different antennas for LF
reception, including tuned longwires, homebrew e-probes that I
constructed,  homebrew loops, but I must say I am very impressed with
the Clifton Labs product, as well as the LFL1010, which I used last
season. Someday I would like to construct a large ferrite core
receiving antenna.

73,
Doug KB4OER

On 1/1/12, mal hamilton <g3kevmal@talktalk.net> wrote:
> Doug
> Nice screen shot from you. You are receiving extremely well. What sort of
> antenna do you use.
> You might also hear/see me on 500 Khz running 10W erp
>
> 73 es tnx
> de mal/g3kev