[TenTec] Eagle AT slow?

Bob McGraw - K4TAX RMcGraw at Blomand.net
Sun Sep 7 22:26:07 EDT 2014


I can explain why the tuner has to retune on the same frequency.......as 
stated by the operator  " Leaving it on that frequency, a minute or so later 
a second try also took 15 seconds. A third tune, on the same frequency 
another minute later, took 10 seconds."   Clearly the operator asked the ATU 
to perform a second and third tune routine on the same frequency.  Why?  No 
needed to do this in my experience.

Every time the TUNE routine is activated the ATU will run through the entire 
matching routine as it should.    Once the match is obtained, it is retained 
in memory for that band.  Moving to other bands and running the ATU routine 
will then attain a match and that data is stored.  Then returning to the 
original band and frequency the original match data is loaded and a match 
exists without running the TUNE routine.

Now to confirm the match is retained, switch to CW mode and press the PTT 
button.  The SWR will be then indicated showing the match previously 
attained for that band.  It is not necessary to press the TUNE button the 
"check" what match exists unless one has changed frequency or band and the 
ATU routine has not been run for that band/frequency.


73
Bob, K4TAX





----- Original Message ----- 
From: "R. Eric Sluder via TenTec" <tentec at contesting.com>
To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
Sent: Sunday, September 07, 2014 9:03 PM
Subject: Re: [TenTec] Eagle AT slow?


> John,
>
> I cannot explain as to why your Eagle tuner has to retune on the same freq 
> unless your actually disabling it and then reenabling when you press to 
> tune again.  If you hold the button too long you'll do just that.
>
> As to the ATU latency... It has been discussed and explained several times 
> in years past.  A quick search on the email forum will provide you with 
> all kinds of enlightenment.
>
> 73
>
> -Eric
> W9WLW
>
>> On Sep 7, 2014, at 6:33 PM, K3GHH <k3ghh at arrl.net> wrote:
>>
>> I'd welcome some comments on the internal Eagle AT (Model 599AT).
>>
>> Here's mine: On 3570 KHz, where my MFJ-269 shows the old trap doublet has 
>> an SWR of 2.7, the Eagle took 15 seconds to tune. Leaving it on that 
>> frequency, a minute or so later a second try also took 15 seconds. A 
>> third tune, on the same frequency another minute later, took 10 seconds.
>>
>> On 40m, where the SWR is 2.1, tuning takes 7 seconds.
>>
>> I know the old antenna here at the camp needs work... but that behavior 
>> on 80 doesn't seem right. The manual (p. 37) says the AT is "designed to 
>> recall the last tuned setting for a given band." Maybe I don't understand 
>> how that memory works, but I don't think the MFJ-293B that I have at home 
>> would behave like this.
>>
>> --John K3GHH/2 _______________________________________________
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