K3 Audio routing question

[Craig Smith]

Hi Rich ...

Thanks for the response.

Actually, I think I didn't explain myself well enough in my posting.  I
wasn't referring to a "DX split" situation where the xmit and rx freq are
substantially different.  I was referring to contest operation where I am
running stations that are normally on my transmit freq but with the
occasional need to fine tune the calling station if they are off frequency.
Rather than do this with RIT, I am accustomed to using SPLIT, fixing my xmit
freq on VFO B and fine tuning for rx with VFO A.  This is what I did before
installing the subRX.

Now that I have the subRX, I want to do the same thing, except put the subRX
in "diversity" mode so that I can listen with two antennas simultaneously
while still reserving VFO B for the fixed xmit freq.  This way I can listen
at the same time to my Xmit antenna and an antenna connected to the SubRX
Aux IN (usually my K9AY).  These antennas have different noise levels,
polarization and directionality, so it is useful to listen with both of
them, at least until I find the station I want to respond to.

My question revolves around how the "balance" control operates when set up
as above.  Some posters have indicated that it doesn't work when in
"diversity" mode.  I'm interested in what others have found useful when
using this type of arrangement.  i.e. - how to quickly emphasize one antenna
or the other if needed for a particular station.

73   Craig  AC0DS



______________________________________________________________
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

[Eric NO3M]

Subject: Elecraft email List Official Guidelines 2010a
Date: 07/03/2010
From: [hidden email]

...

5a. Please do not post publicly or privately asking people to stop a
particular thread, no matter how long, off topic or repetitive it gets.
Email me instead.
I will step in when I feel it is necessary to end a thread.
([hidden email])

...

On 07/06/10 19:42, The Smiths wrote:
> Now, Can we end this thread? (for the 4th time)
>    

______________________________________________________________
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

[Richard Ferch]

Craig,

What you need is *not* diversity mode. Diversity mode will not allow you
to fine tune one receiver differently from the other one.

What you need is plain vanilla dual receive. You can either do it in SPLIT
mode the way you describe, or reversed (with the transmitter on VFO A, the
main receiver using the transmit antenna, and the subRX listening on the
Aux antenna and playing the role of the fine tuning receiver). Using the
reversed method, a simple tap of A>B brings the second receiver back to
your transmit frequency, whereas in SPLIT mode you have to press two
buttons (A/B then A>B) to bring the two receivers back together on your
chosen transmit frequency. Either way, you would set the subRX to receive
on its Aux input in order to listen on two antennas simultaneously.

With stereo headphones, the balance control will control the relative
volume in the two ears, i.e. the relative volume of the two receivers.
With a mono speaker (CONFIG:SPKRS = 1), or mono headphones plugged into
the rear speaker jack, you can control how much of each receiver you hear
in the mono audio using the balance control.

73,
Rich VE3KI

> Hi Rich ...
>
> Thanks for the response.
>
> Actually, I think I didn't explain myself well enough in my posting.  I
> wasn't referring to a "DX split" situation where the xmit and rx freq are
> substantially different.  I was referring to contest operation where I am
> running stations that are normally on my transmit freq but with the
> occasional need to fine tune the calling station if they are off
> frequency.
> Rather than do this with RIT, I am accustomed to using SPLIT, fixing my
> xmit
> freq on VFO B and fine tuning for rx with VFO A.  This is what I did
> before
> installing the subRX.
>
> Now that I have the subRX, I want to do the same thing, except put the
> subRX
> in "diversity" mode so that I can listen with two antennas simultaneously
> while still reserving VFO B for the fixed xmit freq.  This way I can
> listen
> at the same time to my Xmit antenna and an antenna connected to the SubRX
> Aux IN (usually my K9AY).  These antennas have different noise levels,
> polarization and directionality, so it is useful to listen with both of
> them, at least until I find the station I want to respond to.
>
> My question revolves around how the "balance" control operates when set up
> as above.  Some posters have indicated that it doesn't work when in
> "diversity" mode.  I'm interested in what others have found useful when
> using this type of arrangement.  i.e. - how to quickly emphasize one
> antenna
> or the other if needed for a particular station.
>
> 73   Craig  AC0DS
>
>
>
>

______________________________________________________________
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

[Joe Subich, W4TV-4]

Craig,

The "balance" control - if you have configured the Sub AF control
as balance - will increase the audio level in one ear (e.g., main
receive in the left ear) and decrease it in the other ear (e.g.,
sub receiver in the right ear) or vice versa in either dual Rx
or Diversity mode.

If you are using dual RX mode (only) and have set L - MIX - R to
Ab  Ab, the mix control will change the relative proportion of
each signal in both ears (e.g., go from all main to all sub or
vice versa).

73,

    ... Joe, W4TV

On 7/6/2010 9:36 PM, Craig D. Smith wrote:

> Hi Rich ...
>
> Thanks for the response.
>
> Actually, I think I didn't explain myself well enough in my posting.  I
> wasn't referring to a "DX split" situation where the xmit and rx freq are
> substantially different.  I was referring to contest operation where I am
> running stations that are normally on my transmit freq but with the
> occasional need to fine tune the calling station if they are off frequency.
> Rather than do this with RIT, I am accustomed to using SPLIT, fixing my xmit
> freq on VFO B and fine tuning for rx with VFO A.  This is what I did before
> installing the subRX.
>
> Now that I have the subRX, I want to do the same thing, except put the subRX
> in "diversity" mode so that I can listen with two antennas simultaneously
> while still reserving VFO B for the fixed xmit freq.  This way I can listen
> at the same time to my Xmit antenna and an antenna connected to the SubRX
> Aux IN (usually my K9AY).  These antennas have different noise levels,
> polarization and directionality, so it is useful to listen with both of
> them, at least until I find the station I want to respond to.
>
> My question revolves around how the "balance" control operates when set up
> as above.  Some posters have indicated that it doesn't work when in
> "diversity" mode.  I'm interested in what others have found useful when
> using this type of arrangement.  i.e. - how to quickly emphasize one antenna
> or the other if needed for a particular station.
>
> 73   Craig  AC0DS
>
>
>
> ______________________________________________________________
> 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
>

______________________________________________________________
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

[W8JI]

Hi Craig,

You said:

>  I recently installed the sub RX and plan to use it
> for CW contesting.
> When running, I like to use Split with the xmit freq on VFO B.  I then
> tune
> the calling stations, if required, using VFO A.  I normally use a fairly
> wide BW (300-500 Hz) to avoid much tuning on strong signals.  I was hoping
> to use the "diversity" mode for this so that I could monitor two antennas
> at
> once, one in each ear.  If copy became difficult or if the other antenna
> was
> creating more interference than help, it would be useful to use the
> "balance" control to focus my attention on the signal I was trying to
> copy.

I personally don't think the K3 balance is that useful for contesting
because the knobs are too small, concentric, and in a cluster. I strongly
prefer switching on an external panel. The boxes on either side of the K3
select audio lines and the particular antennas, the rotary circle on the
sloped box to the left between the K3 and Yaesu controls directions.

http://www.w8ji.com/contest_station_w8ji.htm#Typical_160_Meter_Multi-op_Contest_Setup

The only time anyone needs diversity mode is when receiving weak signals all
from the same direction, or perhaps on SSB/RTTY so receivers are always
locked. The K3 already does everything we use in contests! Sometimes it just
takes an extra external switch or two to do things right, fast, painless,
and easy.

73 Tom

______________________________________________________________
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

[Craig Smith]

Thanks, Joe, for the clear explanation.

It seems that I will be able to use the "diversity" mode when running and
the locked dual RX mode in S&P to some advantage.  And the unlocked dual RX
mode for SO2V.  I'll know lots more, of course, after the contest.  I'll
experiment with it some first to get more familiar with the options
available.  At least I'll have lots to play with if the conditions are lousy
;>)

      73   Craig  AC0DS

<> The "balance" control - if you have configured the Sub AF control
<> as balance - will increase the audio level in one ear (e.g., main
<> receive in the left ear) and decrease it in the other ear (e.g.,
<> sub receiver in the right ear) or vice versa in either dual Rx
<> or Diversity mode.
<>
<> If you are using dual RX mode (only) and have set L - MIX - R to
<> Ab  Ab, the mix control will change the relative proportion of
<> each signal in both ears (e.g., go from all main to all sub or
<> vice versa).

______________________________________________________________
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

[g0afh]

Hi

Yes, for me it has a very real advantage. Most of the time the K3 is in
'diversity mode' although I am not strictly listening in diversity as my
antennae are pointing in different directions. The advantage for me is
that the receivers are locked together as well as they can be -
including the filtering.

I'll make up a switch box / balance control.

I didn't expect this thread to grow quite the way it has!

Thanks for the info.
73
Ian.

W8JI Tom wrote:

> You are correct, that is not diversity mode but it has an advantage.
> We often do that on 160 meters, where my antennas have very deep
> wide-area nulls. We can lock one ear one direction and move the other
> ear to other directions to scan for signals.
>
> In this mode we often use different bandwidths and sometimes even have
> one channel USB and the other LSB on CW with the USB channel offset
> lower in frequency and the LSB channel offset higher.  On SSB however
> it would obviously be same sideband and always same frequency, so I
> understand the utility in what you do.
>
> The one thing I dislike about the K3 is the location of volume
> controls while in that mode. I would prefer a fast "balance" or fader
> that is easy to grab to instantly fade one channel out. I think this
> is really what you are asking for.
>
> I have this feature on my antenna and audio selector panel. Easy to
> grab. Using dual audio gain controls is too cumbersome for this mode.
>
> http://www.w8ji.com/images/Shack/RX-ant-select.jpg
>
> 73 Tom
>
> ----- Original Message ----- From: "g0afh" <[hidden email]>
> To: <[hidden email]>; <[hidden email]>
> Sent: Tuesday, July 06, 2010 4:26 AM
> Subject: Re: [Elecraft] K3 Audio routing question
>
>
>> Hi Don,
>>
>> Imagine a system with good isolation between antennae such as you can
>> achieve with long yagi's at VHF/UHF. In my left ear I have the main RX
>> with stations from the UK, in my right ear I have the sub RX and
>> stations from Europe. I have a QRM from another G in my left ear when I
>> am called by a weak station from Europe which I hear in my right ear. As
>> the antennae have nice patterns I can barley hear the QRM from the G on
>> the antenna pointing at Europe. Now I want to mute or attenuate the
>> audio from the main RX and listen to the audio from the sub RX in both
>> ears. I know this will not be diversity any more but I'd quite like the
>> filter controls to continue to affect both receivers without having to
>> press BSET. After I have worked the station I need to return to
>> diversity mode listening to both receivers again.
>>
>> Diversity mode almost does what I want with both receivers locked
>> together, I just need to be able to select which audio I listen to at a
>> given time. I can easily make up a box to switch the audio but I would
>> have thought that what I want to do is not that uncommon.
>>
>> Hope this makes more sense.
>> 73
>> Ian
>> G0AFH
>>
>> Don Wilhelm wrote:
>>> Diversity reception requires hearing both the main and the subRX, each
>>> with their own antenna.
>>> I do not understand why one would want to listen to only the subRX when
>>> doing diversity receive - it nullifies any benefit of diversity.
>>> Can you explain further, maybe there is something I am missing.
>>>
>>> 73,
>>> Don W3FPR
>>>
>>> The Smiths wrote:
>>>
>>>> Lyle,
>>>>
>>>> As you know, this is NOT working in the Diversity mode as this
>>>> person wants to use it.  It is ONLY available with SUB mode at the
>>>> time. Perhaps you can Stress to Wayne that he should finally make
>>>> it available for use when in Diversity...
>>>>
>>>>
>>>>
>>>>
>>> ______________________________________________________________
>>> 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
>>>
>> ______________________________________________________________
>> 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 
>

______________________________________________________________
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

[Richard Ferch]

I think it is finally beginning to sink in here. Yes DIVRSTY mode would be
one way to lock both receive VFOs together, with the transmit VFO on a
separate frequency. (Another way would be to LINK the two VFOs and use
RIT.) I can now see why you might want to use DIVRSTY mode even for
non-diversity receive.

As Joe described, you can use CONFIG:L-MIX-R to mix both receivers into
both ears in dual receive, but not in DIVRSTY mode, and you can then use
the BALANCE control to adjust the relative strengths of the two receivers.
Before doing this in the heat of battle, though, you might want to
experiment with it with the receivers LINKed and on the same frequency.
Others have already pointed out that there will be "picket-fencing" in the
frequency response, and you can actually see this for yourself.

With both receivers having matched roofing filters and both tuned to the
same frequency and LINKed, using a single antenna, I observe a fairly
pronounced "picket-fence" effect in the audio response as I tune past a
carrier. In fact, I can hear notches in the band noise as well as in
signal strengths as I tune up and down the band. This suggests to me that
L-MIX-R would only be useful when the two receive VFOs are tuned to
different frequencies. The frequencies must differ by at least a few 10s
of Hz - if they are only a few Hz apart, I hear a very annoying, more or
less rapid, beat or flutter in the audio. This, of course, only confirms
what has already been pointed out (which is a consequence of the basic
physics of the situation), but just in case you want or need to see it for
yourself, you can easily give it a try...

73,
Rich VE3KI


______________________________________________________________
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

[Eric Swartz - WA6HHQ]

Folks - Let's end this thread ASAP. I'll allow another 4-5 postings, if
necessary, then let's let it rest.

I count 44 postings (some a little overheated emotionally ;-) in the
past 1.5 days.  Waaaay too many on a single topic.

73, Eric  WA6HHQ
List moderator


______________________________________________________________
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

[The Smiths]

That's NOT the case.  If anyone would actually try turning on the Mix feature that Lyle gave them access to via the utility terminal they would quickly discover for themselves that it DOES work, and it works VERY WELL.  Especially when using a Beverage and Vertical antenna together.  It can lower the noise ratio very effectively.
Furthermore if you have 2 antennas that are working perpendicular directions on the same phase the L-R mixer will help increase the signal strength. It does NOT always cancel out signals.  It does NOT cause picket fencing either, and you do not need to offset your Freq. either.


For goodness sake people, try the thing, Stop making all these assumptions.  Things on paper aren't always what they are when you apply them to practical situations.  I'm sorry that Joe feels differently, and he's welcome to it, but this opinion is coming from someone that has not even bothered to try this feature out, because his theory on paper tells him otherwise.
As someone that has, and IS using this feature on the K3 (though the Elecraft utility terminal window !EEFF;) I can say with FACT that it DOES work, and it works well for SOME, not all, situations.  Some times it's easier to just try something than letting others tell you something isn't going to work.. No matter how smart they are or how convincing their theory is (and yes, I am giving Joe credit for being an intelligent person).


Finally, I'll only ask that Joe doesn't make any more personal attacks on here because my views differ from his.  This is a discussion with more than one opinion. I have 25 years of experience using Radio, doing design work, repairs, and I've been using Diversity mode with and without mixing for MANY years, regardless of what he thinks.


 

 


 

> Date: Wed, 7 Jul 2010 13:10:26 -0400
> From: [hidden email]
> To: [hidden email]
> Subject: Re: [Elecraft] K3 Audio routing question
>
> I think it is finally beginning to sink in here. Yes DIVRSTY mode would be
> one way to lock both receive VFOs together, with the transmit VFO on a
> separate frequency. (Another way would be to LINK the two VFOs and use
> RIT.) I can now see why you might want to use DIVRSTY mode even for
> non-diversity receive.
>
> As Joe described, you can use CONFIG:L-MIX-R to mix both receivers into
> both ears in dual receive, but not in DIVRSTY mode, and you can then use
> the BALANCE control to adjust the relative strengths of the two receivers.
> Before doing this in the heat of battle, though, you might want to
> experiment with it with the receivers LINKed and on the same frequency.
> Others have already pointed out that there will be "picket-fencing" in the
> frequency response, and you can actually see this for yourself.
>
> With both receivers having matched roofing filters and both tuned to the
> same frequency and LINKed, using a single antenna, I observe a fairly
> pronounced "picket-fence" effect in the audio response as I tune past a
> carrier. In fact, I can hear notches in the band noise as well as in
> signal strengths as I tune up and down the band. This suggests to me that
> L-MIX-R would only be useful when the two receive VFOs are tuned to
> different frequencies. The frequencies must differ by at least a few 10s
> of Hz - if they are only a few Hz apart, I hear a very annoying, more or
> less rapid, beat or flutter in the audio. This, of course, only confirms
> what has already been pointed out (which is a consequence of the basic
> physics of the situation), but just in case you want or need to see it for
> yourself, you can easily give it a try...
>
> 73,
> Rich VE3KI
>
>
> ______________________________________________________________
> 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

     
_________________________________________________________________
The New Busy is not the too busy. Combine all your e-mail accounts with Hotmail.
http://www.windowslive.com/campaign/thenewbusy?tile=multiaccount&ocid=PID28326::T:WLMTAGL:ON:WL:en-US:WM_HMP:042010_4
______________________________________________________________
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

[Joe Subich, W4TV-4]

I understand that Eric has said "that's it" on this discussion but
I will not allow outright LIES to stand.

 > I'm sorry that Joe feels differently, and he's welcome to it, but
 > this opinion is coming from someone that has not even bothered to
 > try this feature out, because his theory on paper tells him
 > otherwise.

I'm not speaking opinion and I'm not speaking from theory ... I have
used diversity receive in many situations both professionally and as
an amateur.  That first hand experience has confirmed as absolute
fact what the theory predicts that mixing the two outputs creates
the same fading as one is trying to overcome by using diversity.
I'm not the only one who is fully aware of that fact of physics ...
every commercial diversity system ever built either uses some form
of switching to select the signal with a higher signal to noise ratio
or employs an automatic phase compensating combiner.

Mixing is appropriate and supported in DUAL RECEIVE mode - if you
want to mix, use that mode - don't screw up diversity for everyone
just to satisfy your own laziness and obvious lack of technical
competence.

 > Finally, I'll only ask that Joe doesn't make any more personal
 > attacks on here because my views differ from his.

Anyone who accuses people of being "silicon cops" has no room to
ask that people refrain from personal attacks.

73,

    ... Joe, W4TV

On 7/7/2010 2:23 PM, The Smiths wrote:

>
> That's NOT the case.  If anyone would actually try turning on the Mix
> feature that Lyle gave them access to via the utility terminal they
> would quickly discover for themselves that it DOES work, and it works
> VERY WELL.  Especially when using a Beverage and Vertical antenna
> together.  It can lower the noise ratio very effectively. Furthermore
> if you have 2 antennas that are working perpendicular directions on
> the same phase the L-R mixer will help increase the signal strength.
> It does NOT always cancel out signals.  It does NOT cause picket
> fencing either, and you do not need to offset your Freq. either.
>
>
> For goodness sake people, try the thing, Stop making all these
> assumptions.  Things on paper aren't always what they are when you
> apply them to practical situations.  I'm sorry that Joe feels
> differently, and he's welcome to it, but this opinion is coming from
> someone that has not even bothered to try this feature out, because
> his theory on paper tells him otherwise. As someone that has, and IS
> using this feature on the K3 (though the Elecraft utility terminal
> window !EEFF;) I can say with FACT that it DOES work, and it works
> well for SOME, not all, situations.  Some times it's easier to just
> try something than letting others tell you something isn't going to
> work.. No matter how smart they are or how convincing their theory is
> (and yes, I am giving Joe credit for being an intelligent person).
>
>
> Finally, I'll only ask that Joe doesn't make any more personal
> attacks on here because my views differ from his.  This is a
> discussion with more than one opinion. I have 25 years of experience
> using Radio, doing design work, repairs, and I've been using
> Diversity mode with and without mixing for MANY years, regardless of
> what he thinks.
>
>
>
>
>
>
>
>
>> Date: Wed, 7 Jul 2010 13:10:26 -0400 From: [hidden email] To:
>> [hidden email] Subject: Re: [Elecraft] K3 Audio routing
>> question
>>
>> I think it is finally beginning to sink in here. Yes DIVRSTY mode
>> would be one way to lock both receive VFOs together, with the
>> transmit VFO on a separate frequency. (Another way would be to LINK
>> the two VFOs and use RIT.) I can now see why you might want to use
>> DIVRSTY mode even for non-diversity receive.
>>
>> As Joe described, you can use CONFIG:L-MIX-R to mix both receivers
>> into both ears in dual receive, but not in DIVRSTY mode, and you
>> can then use the BALANCE control to adjust the relative strengths
>> of the two receivers. Before doing this in the heat of battle,
>> though, you might want to experiment with it with the receivers
>> LINKed and on the same frequency. Others have already pointed out
>> that there will be "picket-fencing" in the frequency response, and
>> you can actually see this for yourself.
>>
>> With both receivers having matched roofing filters and both tuned
>> to the same frequency and LINKed, using a single antenna, I observe
>> a fairly pronounced "picket-fence" effect in the audio response as
>> I tune past a carrier. In fact, I can hear notches in the band
>> noise as well as in signal strengths as I tune up and down the
>> band. This suggests to me that L-MIX-R would only be useful when
>> the two receive VFOs are tuned to different frequencies. The
>> frequencies must differ by at least a few 10s of Hz - if they are
>> only a few Hz apart, I hear a very annoying, more or less rapid,
>> beat or flutter in the audio. This, of course, only confirms what
>> has already been pointed out (which is a consequence of the basic
>> physics of the situation), but just in case you want or need to see
>> it for yourself, you can easily give it a try...
>>
>> 73, Rich VE3KI
>>
>>
>> ______________________________________________________________
>> 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
>  _________________________________________________________________
> The New Busy is not the too busy. Combine all your e-mail accounts
> with Hotmail.
> http://www.windowslive.com/campaign/thenewbusy?tile=multiaccount&ocid=PID28326::T:WLMTAGL:ON:WL:en-US:WM_HMP:042010_4
>
>

______________________________________________________________
> 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
>
______________________________________________________________
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

[The Smiths]

Not having a perfect diversity set up here at my QTH, I can say that all of your "first hand experience" both as an amateur and as a professional differs from my personal findings.  So we'll have to agree to disagree. As you see, I am not attacking you personally, or even saying that you are wrong, simply that I disagree with your knowledge based on my personal use with MY particular set ups.

As for not wanting to "screw up everyone's" diversity mode, well, I would suggest that you also request that the RIT, XIT, Notch and Split button all get removed from your rig as well.  After all, any one of those buttons can easily put your rig in a state where you're unable to receive or transmit on it's intended frequency.  Therefore it could potentially make communications un-useable on your rig. Imagine if the Notch was accidently turned on and the selected notch freq. was sitting right in the middle of your pass band. As you already know, you would now hear NOTHING.. Just like the cancelation that you fear so much could happen with the Mixer mode enabled in the config menu, should one voluntarily and purposefully turn it on.

Having an option that can be disabled by a config menu is no different than any of the above buttons I've just talked about. For those of us that will find this feature useful I would rather YOU not be the deciding factor as to whether or not it is available for my use.
It fact, as I pointed out to you in private e-mail, it was Lyle in his last post to us that suggested "who is he" to be the "Silicon police" and it's not his place to decide who can do what with their rigs.  I don't recall naming you directly Joe.  I'm sorry that this has become such a difficult thing for you to discuss.

Eric, I would suggest that this is the right time to end this thread... It's obvious that some have become so agitated they can no longer have a rational discussion on the subject, it seems this may have escalated to an emotional level for some.  Thank you for allowing the extra few posts.

     
_________________________________________________________________
The New Busy is not the too busy. Combine all your e-mail accounts with Hotmail.
http://www.windowslive.com/campaign/thenewbusy?tile=multiaccount&ocid=PID28326::T:WLMTAGL:ON:WL:en-US:WM_HMP:042010_4
______________________________________________________________
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

[Eric Swartz - WA6HHQ]

The technical content of this thread, including the disagreements, has
been fine and quite informative. But the large volume of postings on
this topic, and the loss of civility by several posters, has now ended
its usefulness.

[Thread ended]


73, Eric  WA6HHQ
List Moderator - and playground monitor from time to time..
______________________________________________________________
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