Jerry:
You're right. I hadn't bothered to do the math. I don't have
experience with the AADE displays, but they look like quality products.
I'm tempted to try one with my Century 22 or with my Heath HW-100. I
have an SB-650 display for the HW-100, but every time I use it, I have
to open it and reseat or swap chips to make it work properly!
73,
Bob WB2VUF
On 5/30/2011 10:00 AM, Jerry Haigwood wrote:
Bob,
The AADE display will not work without modifications. The problem
comes the way Ten Tec did the HFO/PTO mixing scheme. On some bands the 9MHz
IF frequency is subtracted from the HFO/PTO mix to get the correct frequency
display. On other bands, 9MHz is added to the HFO/PTO mix to get the
correct frequency display. Also, you need to know which sideband you are on
to correct for the 3KHz difference in the sideband frequencies. All this
logic is accomplished by the display logic board and the U10 chip. However,
AADE is the company I have been working with to develop the new display.
Neil has a prototype and I will try it out this week. I'll let everyone
know how well it works.
Jerry W5JH
-----Original Message-----
From: tentec-bounces@contesting.com [mailto:tentec-bounces@contesting.com]
On Behalf Of Bwana Bob
Sent: Monday, May 30, 2011 8:50 AM
To: Discussion of Ten-Tec Equipment
Subject: Re: [TenTec] Corsair II U10 Problems
How about one of the AADE (Almost All Digital Electronics) display kits?
http://aade.com/dfd2.htm
73,
Bob WB2VUF
On 5/28/2011 6:37 PM, Barry N1EU wrote:
Jerry, manual is available at http://tentec.com/files/Corsair%20Manual.pdf
Understood about wanting to stick with the PTO for the cleanest
possible signal. If you find a replacement for the display, please
post the info to the list.
One thing that appeals to me about the PTO option is getting a
smoother, weightier tuning action with variable tuning rate. I wish I
could install my hefty Omni 6 tuning knob on my Corsair, but the shaft
diameters are different.
73/GL, Barry N1EU
On Sat, May 28, 2011 at 10:17 PM, Jerry Haigwood<jerry@w5jh.net> wrote:
Barry,
The reason I purchased the Corsair was to get rid of a DDS. I would
not want to ruin a perfectly good receiver by adding more digital
noise/spurs to it. I have other rigs which have a DDS in them if I want to
listen to the noise. :-) I am currently looking at a replacement for the
Corsair II display. It may also fit the Corsair I. However, I don't have
enough info on how the Corsair I works. Anyone have a manual I could look
at?
Jerry W5JH
-----Original Message-----
From: tentec-bounces@contesting.com
[mailto:tentec-bounces@contesting.com] On Behalf Of Barry N1EU
Sent: Saturday, May 28, 2011 1:11 PM
To: Discussion of Ten-Tec Equipment
Subject: Re: [TenTec] Corsair II U10 Problems
No, I wouldn't assume your 68705 is going to fail anytime soon. If it
did, you could either:
1. purchase a parts rig to have spare boards on hand OR
2. replace the PTO with DDS VFO which could drive a freq. display
directly
73/GL,
Barry N1EU
On Sat, May 28, 2011 at 5:43 PM, Jerry Haigwood<jerry@w5jh.net> wrote:
All,
I am new to the list and also new to the Corsair II I recently
purchased. I have seen some U10 problems recently. If U10 truly fails,
what are the options for repair? I have been told Ten Tec no longer has
any
U10 (68705) ICs. Anybody know if that is true? I recently purchased a
288
filter and 263G VFO from a ham who had U10 fail. He decided to part out
the
radio rather than repair it. I also see a corsair on QTH.Com which has
U10
problems. Is the U10 problem something I should "look forward to?"
Jerry W5JH
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