[TenTec] A-Meter Calibration in 3.033xa

[Bob McGraw - K4TAX]

Some of the newer radios, Argonaut VI and Eagle, the S meter is not affected 
by the AGC speed selection.  Also, and I believe correctly applied, the use 
of the RF Gain or attenuator function, does not affect the S meter display. 
In other words, the S meter calibration always references S-9 being equal to 
50 uV at the antenna terminal.

As I haven't had an Orion or Orion II on the bench in some months, I may not 
accurately recall some of the specifics for these radios.

73
Bob, K4TAX




----- Original Message ----- 
From: "Barry N1EU" <barry.n1eu at gmail.com>
To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
Sent: Monday, April 08, 2013 7:07 AM
Subject: Re: [TenTec] A-Meter Calibration in 3.033xa


>I use a 565, not a 566, but my understanding from previous discussions was
> that the slow AGC in the latest firmware WAS slow in its receiver gain
> control and it was only the s-meter action that was fast.  The fast 
> s-meter
> was throwing everybody off - listen with your ears for slow gain control.
> I could be wrong, but I seem to remember John Henry weighing in with that
> info.  If true, that means it's not a bug.
>
> 73,
> Barry N1EU
>
> On Mon, Apr 8, 2013 at 11:28 AM, Kim Elmore 
> <cw_de_n5op at sbcglobal.net>wrote:
>
>> Aha! I noticed the same thing last night! I set my "slow" AGC to some s l
>> o w values (1 dB per second and 1 s hang time), but nothing changes in
>> accordance with the settings. I, too, will go back to 3.29 for now.
>>
>> 73,
>>
>> Kim N5OP
>>
>> "People that make music together cannot be enemies, at least as long as
>> the music lasts." -- Paul Hindemith
>>
>> On Apr 7, 2013, at 23:16, Dave Heil <k8mn at frontiernet.net> wrote:
>>
>> > We installed it on K8WDQ's O II and it fixed the meter problem while
>> introducing another:  The slow AGC was not slow at all.  We tried
>> adjustments but found no success.  We finally decided to reinstall 3.029
>> until the bugs are worked out.
>> >
>> > 73, Dave Heil K8MN
>> >
>> > On 4/7/2013 23 31, Tony Lelieveld wrote:
>> >> Kim,
>> >>
>> >> It does NOT affect the AGC and it is NOT AGC derived.  The S-meter
>> >> signal is processed through the DSP in the IF.  You can turn your 
>> >> manual
>> >> gain control up or down as much as you wish without affecting the
>> >> S-meter movement.  I personally love this feature but must admit that 
>> >> it
>> >> took a while to get used to it.
>> >>
>> >> 73, Tony VE3DWI.
>> >
>> >
>> >
>> >
>> > -----
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>> >
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