Posted by
w9gb on
Feb 24, 2012; 6:09pm
URL: http://elecraft.85.s1.nabble.com/high-power-tuner-tp7314904p7315588.html
Ian -
I have been watching product developments
I this power/automatic operation category:
Palstar HF-AUTO
http://www.palstar.com/hf-auto.php
RF Concepts/Alpha 4040 Automatic Tuner
http://www.rfconcepts.com/PRODUCTS/New-Products/Alpha4040
E-Z Tuner - Jim Garland, W8ZR
(2002 QST article and ARRL Handbooks)
http://www.w8zr.net/eztuner/index.htm
I made a suggestion to Steve at RF Concepts, a couple of years ago,
when RF Concepts was planning a high-power HF automatic tuner.
They needed to incorporate more uProcessor/controller power (since W8ZR
Basic Stamp)
in their planned offering, since the state-of-art has progressed since 2002.
They did, using Linux kernel with the Beagleboard XM
The Palstar and RF Concepts/Alpha offerings are INDOOR tuners.
I have a preference to have the tuner outdoors at the antennas
or feedpoints (like commercial broadcasters).
==
IF Wayne, N6NR is coming to Dayton -
it would be nice to SEE one of the KAT500 prototypes
==
Greg, w9gb
=== previous message ===
Date: Fri, 24 Feb 2012 08:32:58 -0800
From: Wayne Burdick <
[hidden email]>
Subject: Re: [Elecraft] high-power tuner
To: Bill Hammond <
[hidden email]>
> We're just making sure performance is as good as possible. (The stakes
> are even higher in a QRO tuner.)
>
> The most recent prototype worked great, in general, but on 6 meters we
> felt the loss was a fraction of a dB too high. The PCB layout has
> been changed to cut the RF path length and strays by a factor of two,
> which should do the trick. We'll receive these boards in a week or so
> and should have test results a week after that. This suggests that we
> could have some field test units out in mid/late-March.
>
> 73,Wayne - N6KR
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