Readers of rec.radio.shortwave may be interested to check out my lastest
posting on my SDR-1000 blog. I had the opportunity last week to do a
"hands-on" comparison between a Winradio g313e receiver and my Flex-Radio
SDR-1000. My friend and I concentrated on medium wave DX ability of the
rigs, both for daytime DX with the locals at full power, and prior to
sunrise for trans-Pacific MW splits.

I will also soon be posting an entry unrelated to the SDR, but hopefully
still of interest to radio enthusiasts-- the results of a direct "A-B"
comparison between a Kiwa-hotrodded Sony ICF-2010 and an Eton E1 portable.

The blog URL is below.

73,

Guy Atkins
Puyallup, WA USA
www.sdr-1000.blogspot.com

Guy Atkins wrote:
Readers of rec.radio.shortwave may be interested to check out my lastest
posting on my SDR-1000 blog. I had the opportunity last week to do a
"hands-on" comparison between a Winradio g313e receiver and my Flex-Radio
SDR-1000. My friend and I concentrated on medium wave DX ability of the
rigs, both for daytime DX with the locals at full power, and prior to
sunrise for trans-Pacific MW splits.

I will also soon be posting an entry unrelated to the SDR, but hopefully
still of interest to radio enthusiasts-- the results of a direct "A-B"
comparison between a Kiwa-hotrodded Sony ICF-2010 and an Eton E1 portable.

The blog URL is below.

73,

Guy Atkins
Puyallup, WA USA
www.sdr-1000.blogspot.com

If you are talking 5 ft on a side for your Wellbrook loop, then your
results are similar to mine in that this seems to be all the ALA 100
will take without losing gain on the high end of the HF band.

How do you bring the wires back to the ALA100? I came up with two
possibilities:
http://www.lazygranch.com/images/radio/3loop1.gif
http://www.lazygranch.com/images/radio/3loop2.gif

The advantage of 3loop2 is that you don't have wire that is
perdendicular to the rest of the loop.

Also, what is the spacing between your loop wires?

Getting back to the SDRs, it would have been a more interesting review
if an analog radio were thrown into the mix. Also saving some audio
clips would be useful.

Hi Miso,

My Wellbrook ALA 100 uses connections that are closer to what you show in
your first image (3loop1), but the lead wires are fairly short. I have
positioned the windings on one "side" of the vertical support pole, and the
protective box with the ALA 100 inside is on the other side, as close as
possible to the ends of the windings.

I am using 3 inches spacing between turns, which is what Andy Ikin of
Wellbrook recommended when I asked for his opinion on the project.

On the SDR radio comparison, I didn't include any audio clips as the results
were so close. I suppose the clips could have demonstrated the audio
*quality* difference, but I didn't think of that. Maybe when I next on a
DXpedition with John he and I can record something; we may be back at the WA
coast next month. Come to think of it, I can probably get an audio clip from
him of some DX we both listened to and recorded during the last DXpedition,
such as 2YB Wellington on 783 kHz.

I didn't included my modded R-75 analog receiver in the Winradio/Flex-Radio
comparison, as I've already covered it in detail in former comparisons in
the blog.

73,

Guy


wrote in message
oups.com...

If you are talking 5 ft on a side for your Wellbrook loop, then your
results are similar to mine in that this seems to be all the ALA 100
will take without losing gain on the high end of the HF band.

How do you bring the wires back to the ALA100? I came up with two
possibilities:
http://www.lazygranch.com/images/radio/3loop1.gif
http://www.lazygranch.com/images/radio/3loop2.gif

The advantage of 3loop2 is that you don't have wire that is
perdendicular to the rest of the loop.

Also, what is the spacing between your loop wires?

Getting back to the SDRs, it would have been a more interesting review
if an analog radio were thrown into the mix. Also saving some audio
clips would be useful.