Hi Ken,

I was using both the Racal and the modded ICOM R-75, flipping back and forth
between them for "A-B" tests. I use John Bryant's nifty audio switching
network (see http://www.dxing.info/equipment/audio_switch.dx for the
circuit).

Thanks for reminding me about the comparison review I proposed for the R75
Yahoogroup. I've already modified the Racal a bit, so it's been "hotrodded"
too. I'll try to get to that soon, as the differences in the receivers are
becoming more apparent.

Roanwell headphones, eh? Boy, you have a good memory! I'd even forgotten I'd
owned that model. At the time it was the best set of 'phones I'd ever
encountered for voice reproduction. I've been through some other headsets
since then, including David Clark and Avcomm aviation models. The set I keep
coming back to, however, is the Sennheiser HD-525 headphones I own. They are
extremely comfortable and have a crispness and accuracy of reproduction I
haven't encountered in lesser models. If you can find a set they usually go
for around $50-60 on Ebay. I like to use them along with a Timewave DSP
audio filter when I desire a narrow voice frequency range for DX. Otherwise,
"wide open" they sound great on clear signals, for fidelity. I also have a
fairly good Radio Shack scanner-type headset that I've fitted with
gell-filled earpads for comfort and noise supression.

The Racals are pretty common on the surplus market now, and I don't think
they are being sought after by collectors, so the prices remain decent. Try
to snag one that has been refurbished by the Racal guru, Gary Wingerd.

73,

Guy



"Ken Wilson" wrote in message
...
Hello Guy,

Thanks for the loggings here.

I would assume you were using the Racal.

BTW When are we going to get a comparison between the 6790GM & the Kiwa
mod
R75 ?

I have bid on a couple of 6790GM's but they all went to high for me.
Someday.

One other note. Do you still have the Roanwell headphones you used many
years ago ?

73, Ken KG4BIG

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