Re: K3 and KX3 AGC settings and what the really mean.

[wayne burdick]

Hi Ron,

I'll be documenting these better in the next KX3 errata. In general we  
recommend using the defaults. Here's a quick summary:

> AGC Decay: soft

No equivalent in the KX3. In fact probably not needed even in the K3  
thanks to recent K3 and KX3 AGC improvements.

> Hld: 0.2 (AGC HLD, default 0)

Hold time in seconds for voice-mode AGC. This prevents AGC decay for a  
specified time, which some SSB ops like.

> Pls: nor (AGC PLS, default NOR, just added with the 1.01 MCU release)

Noise-pulse rejection. Prevents the AGC (and S-meter) from charging up  
on one-shot noise events. Try turning a noisy florescent lamp on/off  
right next to the radio; with AGC PLS set to NOR, the KX3 should  
suppress the usual long-decay S-meter response to such pulses. Set it  
to OFF if you want to see what happens to most radios :)

> Slp: 0 (AGC SLP, default 15 on the KX3)

The higher the slope number, the "flatter" the AGC response is. With a  
high setting of slope, signals above the AGC threshold will be held  
very close in audio amplitude even if they vary by many S-units at the  
RF input.

> Thr: 20 (AGC THR, default 5 to 7 depending on firmware release)

This specifies the threshold at which AGC starts to "attack". A higher  
number moves the threshold up.

> F: 200 (AGC FST, default 120; or AGC SLO, default 20)

Specifies the decay rate for AGC slow or fast as selected by the AGC  
switch on the K3 or the AGC SPD menu entry on the KX3. A larger number  
means a faster decay rate.

> AF lim: nor 030 (AF LIM, default 30)

Sets the audio limiter threshold used when AGC is turned OFF. Not yet  
implemented in the KX3.

Wayne
N6KR

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[Jussi Eloranta]

Hi,

This is not directly related to Elecraft but it does have implications
on the use of my K3 ;-)

I live in one of those "cursed" properties that have overhead power
lines in the backyard (from the service pole; the pole itself is in the
neighbors yard, at least...) and you may guess that this does not mix
well with antennas. Right now I am very limited putting anything decent
up without serous safety concerns. Does anyone have any experience in
burying the overhead cables (from the service pole to the house)
underground in So Cal, serviced by Southern California Edison? How
expensive would such an operation be?

Thanks,

Jussi Eloranta, AA6KJ

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[k6dgw]

On 6/24/2012 6:44 PM, Jussi Eloranta wrote:

> Does anyone have any experience in
> burying the overhead cables (from the service pole to the house)
> underground in So Cal, serviced by Southern California Edison? How
> expensive would such an operation be?

The service entrance from the pole pig to your meter [and the meter] are
the property of the utility, and they have an implied easement for it
because you wanted electricity and pay your bill.  How they run it is
their choice.  They might bury the lines for you, get your checkbook
out.  We're on Pacific Gas and Electric and they've flatly refused for
some of our neighbors.  Maybe SCE is more people friendly, but good
luck, it's not likely one of the many priorities [like maybe San Onofre?].

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2012 Cal QSO Party 6-7 Oct 2012
- www.cqp.org

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[Jim Wiley-2]

Some years back, I was facing a similar issue.  I contacted the electric
utility, they suggested I contact one of their approved suppliers (a
local electrical contractor), and go from there.  Short story: They got
it done is about a week, and the cost (then) was about $300.   Most
electric utility companies have a list of approved contractors that they
use, primarily for new construction.  The utility service department
normally does not have the personnel for new construction work (there is
too much of it) and usually comes into play for repair work only.


- Jim, KL7CC



Jussi Eloranta wrote:

> Hi,
>
> This is not directly related to Elecraft but it does have implications
> on the use of my K3 ;-)
>
> I live in one of those "cursed" properties that have overhead power
> lines in the backyard (from the service pole; the pole itself is in the
> neighbors yard, at least...) and you may guess that this does not mix
> well with antennas. Right now I am very limited putting anything decent
> up without serous safety concerns. Does anyone have any experience in
> burying the overhead cables (from the service pole to the house)
> underground in So Cal, serviced by Southern California Edison? How
> expensive would such an operation be?
>
> Thanks,
>
> Jussi Eloranta, AA6KJ
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
>  

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[Jussi Eloranta]

On 06/24/2012 07:26 PM, Jim Wiley wrote:
> Some years back, I was facing a similar issue.  I contacted the
> electric utility, they suggested I contact one of their approved
> suppliers (a local electrical contractor), and go from there. Short
> story: They got it done is about a week, and the cost (then) was about
> $300.   Most electric utility companies have a list of approved
> contractors that they use, primarily for new construction.  The
> utility service department normally does not have the personnel for
> new construction work (there is too much of it) and usually comes into
> play for repair work only.
OK, thanks. I will check with a local contractor.

Yeah, I know that some folks already got frustrated this being "off
topic" but I did not have anyone else to turn to. If anyone else has
good suggestions, email me directly to keep the list traffic minimum.

Thanks,

Jussi Eloranta, AA6KJ

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[Jim Low man]

One of the three overhead lines coming into the
house (cable TV) is superfluous at this point
since we have AT&T U-Verse.  I doubt that I
could get them to remove it, even if I found
a contractor that would bury the electric line.
I think the phone line is still needed for U-Verse.

72/73 de Jim - AD6CW

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