[Elecraft] Fwd: Re: AGC Mod S-Meter

[Darrell Bellerive]

Forwarding to the list as per Dave's request.

----------  Forwarded Message  ----------

Subject: Re: AGC Mod S-Meter
Date: March 7, 2007 07:35 pm
From: "Dave White" <dwds at trinustech.com>
To: va7to at yahoo.ca

Hi Darrell:

I chose the values for the S Meter voltage feed to be the most accurate; S1
with 1uv and S9 with 50uv.  It also allowed full range of the S Meter as the
RF gain control was rotated through its range. Its possible that other
values would work as well.

As to the C3 issue, I was using a REV D board (before the POT was installed
in R1), and thus the cct traces on my Control board might have been
different.  The attachment position of C3 is not critical - as it is a DC
cct and C3 is used for suppression; it has no other affect.

You might want to pass this information on to the Reflector, as I no longer
have my K2 and am not receiving the digests any longer.

I'm glad the MOD is working out for you.

Regards

Dave

----- Original Message -----
From: "Darrell Bellerive" <va7to at yahoo.ca>
To: "Dave White" <dwds at trinustech.com>
Sent: Wednesday, March 07, 2007 12:33 PM
Subject: AGC Mod S-Meter

> Dave,
>
> Could you please explain to me why you chose the range of 1 volt to 1.7
> volts
> for the S-meter range adjusted by RM3? Seems that higher voltages will
> yield
> a greater spread between S LO and S HI settings.
>
> By the way if you haven't read my post to the Elecraft list, I have
> installed
> your mod and am very pleased with it. By the way I am still waiting on an
> answer as to why your diagram shows C3 moving from U2 pin 5 to the RF Gain
> line.
>
> Thanks for a great mod!!!
>
> Darrell
>
> --
> Darrell Bellerive
> Amateur Radio Stations VA7TO and VE7CLA
> Grand Forks, British Columbia, Canada

-------------------------------------------------------

-- 
Darrell Bellerive
Amateur Radio Stations VA7TO and VE7CLA
Grand Forks, British Columbia, Canada