[Elecraft] [Elecraft_K3] RE: [K3] RX Audio/AGC

[Sam Morgan]

I my be wrong Mike,
but I don't think the AF Limiter is active *IF* the AGC is active
my understanding is it is only active if AGC is *OFF*

Quote from pg 15 of K3 owners manual D10.pdf:
AGC off/on (when off, an AF limiter
is available; see CONFIG:AF LIM)

also pg 53:

AF LIM NOR (Advanced.) Adjustable AF output limiter for use when AGC is 
turned off. This
can protect your ears if a large signal appears. Signals or noise above the
threshold will sound highly distorted due to the limiting action, 
reminding you to
back down the AF or RF gain. Typical settings for those who often turn 
AGC off
are 17 to 23; some experimentation will be required.




On 1/25/2014 6:35 PM, mikerodgerske5gbc at yahoo.com wrote:
>
>
> Hi Knut,
>
> Sorry I cannot. I don't have that capability. I might be able to record
> it on my iPhone.
>
> I'm going to try to remedy it with EQ. I think it's bumping the AF
> limiter providing the limiter is in the circuit with AGC on.
>
> It just seemed to me that since rf gain cured it, AGC should too, so I
> wouldn't have to turn RF down for one station and up for others. Gets
> old after a while. And not talking about s9++++ signals either.
>
> Thanks
> Mike R
>
> RIP- Mr 500.  STP's Andy Granatelli from racing fans everywhere.
>
> On Jan 25, 2014, at 1:13 PM, <ab2tc at arrl.net <mailto:ab2tc at arrl.net>> wrote:
>
>> Hi,
>>
>> Can you post an audio clip exhibiting the problem? It's very difficult
>> to help with just a verbal description of the problem. I have never
>> heard any pops or clicks from the K3 AGC. I know what it sounds like.
>> I use HDSDR with slow AGC setting with my Afedri SDR and it's terrible
>> on strong signals. The person currently in charge of HDSDR has
>> promised  to look at it.
>>
>> AB2TC - Knut
>>
>> ---In Elecraft_K3 at yahoogroups.com
>> <mailto:Elecraft_K3 at yahoogroups.com>, <mikerodgerske5gbc at ...> wrote:
>>
>> I have a ongoing nuisance. On USB it seems high voices will pop/crack
>> just like if AGC was off and hitting the AF limiter. Reducing RF Gain
>> clears it up.
>> Turning agc threshold down has no effect.
>>
>> Is there a agc setting that might correct this? I haven't tried slope
>> which is 15 (max).


-- 
GB & 73
K5OAI
Sam Morgan