[Elecraft] P3 wish list

[Alan Bloom]

Unless you change microphones or operators, transmit audio equalization
should be pretty much a "set and forget" type calibration.

I'm a little nervous about making this an "official" feature, because
the signal level is not well-controlled.  It depends on stray leakage
through a balanced mixer and "blow-by" past a couple of PIN diode
switches.  If the mixer in a particular K3 happens to be very well
balanced or the PIN diodes have extra-low capacitance, there may not be
enough signal level to adjust the equalizer properly.  It also depends
on frequency band and transmit power level.

There may be a better way to do this.  It's on my list of things to look
at as soon as I get time.

Alan N1AL


On Fri, 2010-11-19 at 06:17 +1000, Gary Gregory wrote:
> I would like to be able to 'switch' such a feature On/Off without any
> external 'box'
> 
> As I am operating portable all the time there is a need for me to check this
> daily.
> 
> YMMV
> 
> Gary
> 
> On Thu, Nov 18, 2010 at 11:10 PM, Howard K2HK <k2hk at arrl.net> wrote:
> 
> >
> >
> >
> > I assume Alan monitors the reflector :-). Hope he is sufficiently
> > interested.
> >
> > Howard..K2HK
> > Smith's:
> >
> > Agreed, I concur with you. I don't need any more boxes on my desk either,
> > especially when a button on the Menu could turn off the RS-232 'mute'
> > control.. seems like a pretty easy thing to do to me. Just thought that I
> > would give you a work around for the time being.
> > Be sure to send your ideas to Alan.. he's the only one that can program it
> > into the P3
> >
> >
> >
> > From: k2hk at arrl.net
> > To: elecraft at mailman.qth.net
> > Date: Thu, 18 Nov 2010 02:53:31 +0000
> > Subject: Re: [Elecraft] P3 wish list
> >
> >
> > That's an easy fix. But I have so many boxes on my desktop and it would
> > seem more natural to me to be incorporated into the P3. Doesn't seem like it
> > would be a major project.
> > Howard..K2HK
> >
> > Smith's wrote:
> > you could always use an A/B serial box and just switch to B when you want
> > to do your testing. That's an easy "up front" solution if they don't add
> > that ability for you.
> >
> >
> > From: k2hk at arrl.net
> > To: elecraft at mailman.qth.net
> > Date: Thu, 18 Nov 2010 02:26:25 +0000
> > Subject: [Elecraft] P3 wish list
> >
> >
> > I found checking and adjusting the K3 output on the P3 a useful function.
> > Would it be difficult to make it a front panel function w/o the need to
> > reach in the back and remove the RS232 cable?
> >
> > Howard..K2HK
> >
> >
> >
> > ______________________________________________________________
> > Elecraft mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/elecraft
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:Elecraft at mailman.qth.net
> >
> > This list hosted by: http://www.qsl.net
> > Please help support this email list: http://www.qsl.net/donate.html
> >
> 
> 
>