Re: [Elecraft] [K3] Line out, speakers, and L-mix-R settings...

2010-11-29 Thread James Sarte (K2QI)
I have another question that's somewhat related to my original post.  I know
it has been discussed many times over; that one should avoid using a mono
plug in the SPKRS jack.

What I'd like to know though is this:  Would it be OK to use a mono plug in
either front panel PHONES output, or rear panel PHONE or LINE output without
fear of blowing something up?

Manual says it should be fine, but just want to get confirmation beforehand
that this is OK to do.

Tnx!

-- 
73 de James K2QI
President UNARC/4U1UN
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Re: [Elecraft] [K3] Line out, speakers, and L-mix-R settings...

2010-11-27 Thread Mike
Re: point #2.

I don't have a sub rx, so it's never been a problem for me, but I'm thinking of 
adding one.  How does that work if there's a RTTY  signal on both VFO's 
(simplex)? 
Would you have to tap AB?

The manual sez Use CONFIG: LIN OUT to set the level, or to switch from a 
fixed-level 
setting to =PHONES. Does that give you a level control using the AF knob?

73, Mike NF4L

On 11/26/2010 11:52 PM, Richard Ferch wrote:
 James,

 I hope your daughter is feeling better soon.

 Re your questions (based on my observations using sound card software on
 both channels from the LINE OUT jack, and stereo headphones plugged into
 the SPKRS jack):

 1. The CONFIG:SPKRS setting only affects the rear panel SPKRS jack. It
 has no effect on LINE OUT.

 2. None of the audio mixing or level controls has any effect on the LINE
 OUT signal, as far as I can tell. The left channel always carries the
 main RX output, and the right channel always carries the sub RX output.
 The LINE output is raw unmixed audio from the two receivers at a fixed
 level set by CONFIG:LIN OUT.

 3. When CONFIG:SPKRS = 2, the SPKRS jack behaves the same as the
 headphone jacks. With SUB off, the main RX is in both channels, and with
 SUB on and the normal L-MIX-R setting, the main RX and sub RX are in
 left and right channels respectively. Changing the L-MIX-R setting
 affects the SPKRS the same way as it affects the PHONES output.

 When CONFIG:SPKRS = 1, the only speaker output is on the left channel of
 the SPKRS jack, i.e. it disables the right channel output even when SUB
 is on. If SUB is on, the external mono speaker on the left channel
 carries audio from both receivers mixed together, the same as the
 internal speaker. The purpose of the CONFIG:SPKRS = 1 option is to
 protect the speaker amp if a mono plug is plugged into the SPKRS jack.

 73,
 Rich VE3KI






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Re: [Elecraft] [K3] Line out, speakers, and L-mix-R settings...

2010-11-27 Thread Joe Subich, W4TV

 I don't have a sub rx, so it's never been a problem for me, but I'm
 thinking of adding one.  How does that work if there's a RTTY
 signal on both VFO's (simplex)? Would you have to tap AB?

The best way to handle RTTY with signals on both receivers is to run
two copies of MMTTY (or other decoder) - one for reach receiver.  MixW
has a dual receive capability - I don't know about any of the other
software.  In general, one decoder uses the soundcard left channel
and the second uses soundcard right channel audio.  Mixing the two
audio streams does not work ... it merely results in QRM.

73,

... Joe, W4TV


On 11/27/2010 5:34 AM, Mike wrote:
 Re: point #2.

 I don't have a sub rx, so it's never been a problem for me, but I'm thinking 
 of
 adding one.  How does that work if there's a RTTY  signal on both VFO's 
 (simplex)?
 Would you have to tap AB?

 The manual sez Use CONFIG: LIN OUT to set the level, or to switch from a 
 fixed-level
 setting to =PHONES. Does that give you a level control using the AF knob?

 73, Mike NF4L

 On 11/26/2010 11:52 PM, Richard Ferch wrote:
 James,

 I hope your daughter is feeling better soon.

 Re your questions (based on my observations using sound card software on
 both channels from the LINE OUT jack, and stereo headphones plugged into
 the SPKRS jack):

 1. The CONFIG:SPKRS setting only affects the rear panel SPKRS jack. It
 has no effect on LINE OUT.

 2. None of the audio mixing or level controls has any effect on the LINE
 OUT signal, as far as I can tell. The left channel always carries the
 main RX output, and the right channel always carries the sub RX output.
 The LINE output is raw unmixed audio from the two receivers at a fixed
 level set by CONFIG:LIN OUT.

 3. When CONFIG:SPKRS = 2, the SPKRS jack behaves the same as the
 headphone jacks. With SUB off, the main RX is in both channels, and with
 SUB on and the normal L-MIX-R setting, the main RX and sub RX are in
 left and right channels respectively. Changing the L-MIX-R setting
 affects the SPKRS the same way as it affects the PHONES output.

 When CONFIG:SPKRS = 1, the only speaker output is on the left channel of
 the SPKRS jack, i.e. it disables the right channel output even when SUB
 is on. If SUB is on, the external mono speaker on the left channel
 carries audio from both receivers mixed together, the same as the
 internal speaker. The purpose of the CONFIG:SPKRS = 1 option is to
 protect the speaker amp if a mono plug is plugged into the SPKRS jack.

 73,
 Rich VE3KI






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Re: [Elecraft] [K3] Line out, speakers, and L-mix-R settings...

2010-11-27 Thread Richard Ferch
Mike,

Thanks for pointing that out - I had completely forgotten about that 
option. I guess it's time I printed out a new copy of the manual! Of 
course, that changes the answer to James' question #2; if you want the 
LINE output to be a clone of the headphones output, set CONFIG:LIN OUT 
to =PHONES.

With CONFIG:LIN OUT =PHONES, when the subRX is off, the main RX is in 
both channels. This setting seems tailor-made for James' situation 
(listening to speakers through a sound card).

For digital modes, as Joe has pointed out, when SUB is on, you use the 
two channels to feed two independent copies of MMTTY (or other 
software). You do not want any mixing of the two signals. Also, you do 
not want the volume control to affect the audio level going into the 
decoder. If you use the audio pitch as a tuning aid, you want the 
ability to turn the audio down or to change the balance between the two 
channels without interrupting the ongoing decoding of both signals.

When SUB is off, you only use (or need) one channel in the sound card. 
The right channel waterfall just goes black when the sub RX is off. You 
can use two different decoding algorithms on a single signal by running 
two (or more) independent decoding programs (e.g. two or more separate 
copies of MMTTY using different profiles) from a single channel in the 
sound card.

73,
Rich VE3KI


NF4L wrote:

 Re: point #2.

 I don't have a sub rx, so it's never been a problem for me, but I'm thinking 
 of
 adding one.  How does that work if there's a RTTY  signal on both VFO's 
 (simplex)?
 Would you have to tap AB?

 The manual sez Use CONFIG: LIN OUT to set the level, or to switch from a 
 fixed-level
 setting to =PHONES. Does that give you a level control using the AF knob?

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Re: [Elecraft] [K3] Line out, speakers, and L-mix-R settings...

2010-11-27 Thread Mike
Joe, if you mean stand alone MMTTY, I don't understand. I wouldn't want to copy 
copy 
both signals.
Each copy of MMTTY could use a different sound card (given 2 sound cards) but 
still 
no way to direct sound by channel.

I suppose the Windoze mixer could be used to set the balance. Or cut a wire in 
the 
audio cable.

All that strikes me as a kludge, but I certainly don't have a better solution. 
:-(

Mike NF4L


On 11/27/2010 8:14 AM, Joe Subich, W4TV wrote:
I don't have a sub rx, so it's never been a problem for me, but I'm
 thinking of adding one.  How does that work if there's a RTTY
 signal on both VFO's (simplex)? Would you have to tap AB?
 The best way to handle RTTY with signals on both receivers is to run
 two copies of MMTTY (or other decoder) - one for reach receiver.  MixW
 has a dual receive capability - I don't know about any of the other
 software.  In general, one decoder uses the soundcard left channel
 and the second uses soundcard right channel audio.  Mixing the two
 audio streams does not work ... it merely results in QRM.

 73,

  ... Joe, W4TV


 On 11/27/2010 5:34 AM, Mike wrote:
 Re: point #2.

 I don't have a sub rx, so it's never been a problem for me, but I'm thinking 
 of
 adding one.  How does that work if there's a RTTY  signal on both VFO's 
 (simplex)?
 Would you have to tap AB?

 The manual sez Use CONFIG: LIN OUT to set the level, or to switch from a 
 fixed-level
 setting to =PHONES. Does that give you a level control using the AF knob?

 73, Mike NF4L

 On 11/26/2010 11:52 PM, Richard Ferch wrote:
 James,

 I hope your daughter is feeling better soon.

 Re your questions (based on my observations using sound card software on
 both channels from the LINE OUT jack, and stereo headphones plugged into
 the SPKRS jack):

 1. The CONFIG:SPKRS setting only affects the rear panel SPKRS jack. It
 has no effect on LINE OUT.

 2. None of the audio mixing or level controls has any effect on the LINE
 OUT signal, as far as I can tell. The left channel always carries the
 main RX output, and the right channel always carries the sub RX output.
 The LINE output is raw unmixed audio from the two receivers at a fixed
 level set by CONFIG:LIN OUT.

 3. When CONFIG:SPKRS = 2, the SPKRS jack behaves the same as the
 headphone jacks. With SUB off, the main RX is in both channels, and with
 SUB on and the normal L-MIX-R setting, the main RX and sub RX are in
 left and right channels respectively. Changing the L-MIX-R setting
 affects the SPKRS the same way as it affects the PHONES output.

 When CONFIG:SPKRS = 1, the only speaker output is on the left channel of
 the SPKRS jack, i.e. it disables the right channel output even when SUB
 is on. If SUB is on, the external mono speaker on the left channel
 carries audio from both receivers mixed together, the same as the
 internal speaker. The purpose of the CONFIG:SPKRS = 1 option is to
 protect the speaker amp if a mono plug is plugged into the SPKRS jack.

 73,
 Rich VE3KI


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Re: [Elecraft] [K3] Line out, speakers, and L-mix-R settings...

2010-11-27 Thread Joe Subich, W4TV

  I suppose the Windoze mixer could be used to set the balance. Or cut 
  a wire in the audio cable.

You don't want to mix the signals ... they would QRM each other.  I
can't see any reason for mixing them and running independent copies
of MMTTY or MixW in the dual channel mode is the best way to select
the signal.

73,

... Joe, W4TV

On 11/27/2010 8:58 AM, Mike wrote:
 Joe, if you mean stand alone MMTTY, I don't understand. I wouldn't want to 
 copy copy
 both signals.
 Each copy of MMTTY could use a different sound card (given 2 sound cards) but 
 still
 no way to direct sound by channel.

 I suppose the Windoze mixer could be used to set the balance. Or cut a wire 
 in the
 audio cable.

 All that strikes me as a kludge, but I certainly don't have a better 
 solution. :-(

 Mike NF4L


 On 11/27/2010 8:14 AM, Joe Subich, W4TV wrote:
 I don't have a sub rx, so it's never been a problem for me, but I'm
 thinking of adding one.  How does that work if there's a RTTY
 signal on both VFO's (simplex)? Would you have to tap AB?
 The best way to handle RTTY with signals on both receivers is to run
 two copies of MMTTY (or other decoder) - one for reach receiver.  MixW
 has a dual receive capability - I don't know about any of the other
 software.  In general, one decoder uses the soundcard left channel
 and the second uses soundcard right channel audio.  Mixing the two
 audio streams does not work ... it merely results in QRM.

 73,

   ... Joe, W4TV


 On 11/27/2010 5:34 AM, Mike wrote:
 Re: point #2.

 I don't have a sub rx, so it's never been a problem for me, but I'm 
 thinking of
 adding one.  How does that work if there's a RTTY  signal on both VFO's 
 (simplex)?
 Would you have to tap AB?

 The manual sez Use CONFIG: LIN OUT to set the level, or to switch from a 
 fixed-level
 setting to =PHONES. Does that give you a level control using the AF knob?

 73, Mike NF4L

 On 11/26/2010 11:52 PM, Richard Ferch wrote:
 James,

 I hope your daughter is feeling better soon.

 Re your questions (based on my observations using sound card software on
 both channels from the LINE OUT jack, and stereo headphones plugged into
 the SPKRS jack):

 1. The CONFIG:SPKRS setting only affects the rear panel SPKRS jack. It
 has no effect on LINE OUT.

 2. None of the audio mixing or level controls has any effect on the LINE
 OUT signal, as far as I can tell. The left channel always carries the
 main RX output, and the right channel always carries the sub RX output.
 The LINE output is raw unmixed audio from the two receivers at a fixed
 level set by CONFIG:LIN OUT.

 3. When CONFIG:SPKRS = 2, the SPKRS jack behaves the same as the
 headphone jacks. With SUB off, the main RX is in both channels, and with
 SUB on and the normal L-MIX-R setting, the main RX and sub RX are in
 left and right channels respectively. Changing the L-MIX-R setting
 affects the SPKRS the same way as it affects the PHONES output.

 When CONFIG:SPKRS = 1, the only speaker output is on the left channel of
 the SPKRS jack, i.e. it disables the right channel output even when SUB
 is on. If SUB is on, the external mono speaker on the left channel
 carries audio from both receivers mixed together, the same as the
 internal speaker. The purpose of the CONFIG:SPKRS = 1 option is to
 protect the speaker amp if a mono plug is plugged into the SPKRS jack.

 73,
 Rich VE3KI


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Re: [Elecraft] [K3] Line out, speakers, and L-mix-R settings...

2010-11-27 Thread Mike
I'm not suggesting mixing signals, in fact I'm trying to arrive at a method of 
conveniently eliminating one of them.

I just looked into MMTTY and saw (for the first time)  the ability to select 
mono, 
left, or right. Kewl! :-P

73, Mike NF4L


On 11/27/2010 9:26 AM, Joe Subich, W4TV wrote:
 I suppose the Windoze mixer could be used to set the balance. Or cut
 a wire in the audio cable.

 You don't want to mix the signals ... they would QRM each other.  I
 can't see any reason for mixing them and running independent copies
 of MMTTY or MixW in the dual channel mode is the best way to select
 the signal.

 73,

  ... Joe, W4TV

 On 11/27/2010 8:58 AM, Mike wrote:
 Joe, if you mean stand alone MMTTY, I don't understand. I wouldn't want to 
 copy copy
 both signals.
 Each copy of MMTTY could use a different sound card (given 2 sound cards) 
 but still
 no way to direct sound by channel.

 I suppose the Windoze mixer could be used to set the balance. Or cut a wire 
 in the
 audio cable.

 All that strikes me as a kludge, but I certainly don't have a better 
 solution. :-(

 Mike NF4L


 On 11/27/2010 8:14 AM, Joe Subich, W4TV wrote:
 I don't have a sub rx, so it's never been a problem for me, but I'm
 thinking of adding one.  How does that work if there's a RTTY
 signal on both VFO's (simplex)? Would you have to tap AB?
 The best way to handle RTTY with signals on both receivers is to run
 two copies of MMTTY (or other decoder) - one for reach receiver.  MixW
 has a dual receive capability - I don't know about any of the other
 software.  In general, one decoder uses the soundcard left channel
 and the second uses soundcard right channel audio.  Mixing the two
 audio streams does not work ... it merely results in QRM.

 73,

... Joe, W4TV


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Re: [Elecraft] [K3] Line out, speakers, and L-mix-R settings...

2010-11-27 Thread Richard Ferch
Mike,

I don't understand why you think there is a problem. I guess I don't 
understand what you are trying to do.

The hardware setup to use both receivers in RTTY is simple, and no 
different from what you use with a single receiver - a single stereo 
cable from the K3's LINE OUT to the sound card's LINE IN for receive, a 
single mono (or stereo) cable from the sound card's LINE OUT to the K3's 
LINE IN for AFSK transmit, and use RTS on the radio control port for 
PTT. Or, if you prefer FSK, replace the AFSK transmit cable with FSK and 
PTT keying circuits to the AUX input.

There is no need for a second sound card, no need to cut cables, no need 
to use a mixer to adjust balance.

You set up one copy of MMTTY to receive using only the left channel of a 
single sound card, and a separate copy of MMTTY to receive using only 
the right channel of the same sound card. The two operate entirely 
independently. One decodes the signal from the main receiver, the other 
one from the sub receiver. If you only want to copy one signal, just 
don't look at the output from the other copy of MMTTY, or if you find it 
distracting, just turn SUB off and/or close down the second copy of MMTTY.

 From N1MM Logger, you can open two Entry windows, one for each VFO, and 
open a separate Digital Interface window from each Entry window, with 
separate copies of MMTTY each configured to use the appropriate channel 
of the sound card. You can receive on both receivers at once, and choose 
which one to transmit to with the \ key. Or, if you only want to use 
one VFO, just close down the second Entry window.

73,
Rich VE3KI


NF4L wrote:

 All that strikes me as a kludge, but I certainly don't have a better 
 solution. :-(

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Re: [Elecraft] [K3] Line out, speakers, and L-mix-R settings...

2010-11-27 Thread Mike
Richard,

The problem is, as usual, my lack of understanding of how something works. Now 
that I 
realize that MMTTY can select either channel, I get it. Unfortunately my PSK 
software 
can't do that. :-(

Thanks to both you and Joe for the guidance.

73, Mike NF4L

On 11/27/2010 10:54 AM, Richard Ferch wrote:
 Mike,

 I don't understand why you think there is a problem. I guess I don't
 understand what you are trying to do.

 The hardware setup to use both receivers in RTTY is simple, and no
 different from what you use with a single receiver - a single stereo
 cable from the K3's LINE OUT to the sound card's LINE IN for receive, a
 single mono (or stereo) cable from the sound card's LINE OUT to the K3's
 LINE IN for AFSK transmit, and use RTS on the radio control port for
 PTT. Or, if you prefer FSK, replace the AFSK transmit cable with FSK and
 PTT keying circuits to the AUX input.

 There is no need for a second sound card, no need to cut cables, no need
 to use a mixer to adjust balance.

 You set up one copy of MMTTY to receive using only the left channel of a
 single sound card, and a separate copy of MMTTY to receive using only
 the right channel of the same sound card. The two operate entirely
 independently. One decodes the signal from the main receiver, the other
 one from the sub receiver. If you only want to copy one signal, just
 don't look at the output from the other copy of MMTTY, or if you find it
 distracting, just turn SUB off and/or close down the second copy of MMTTY.

   From N1MM Logger, you can open two Entry windows, one for each VFO, and
 open a separate Digital Interface window from each Entry window, with
 separate copies of MMTTY each configured to use the appropriate channel
 of the sound card. You can receive on both receivers at once, and choose
 which one to transmit to with the \ key. Or, if you only want to use
 one VFO, just close down the second Entry window.

 73,
 Rich VE3KI


 NF4L wrote:

 All that strikes me as a kludge, but I certainly don't have a better 
 solution. :-(



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Re: [Elecraft] [K3] Line out, speakers, and L-mix-R settings...

2010-11-27 Thread Joe Subich, W4TV

 I just looked into MMTTY and saw (for the first time) the ability to
  select mono, left, or right. Kewl! :-P

Yes, if you're not trying to copy both signals at the same time (e.g.,
split RTTY DX), you can use MMTTY's ability to select Left or Right
to select Main/Sub without running two copies.

73,

... Joe, W4TV

On 11/27/2010 10:45 AM, Mike wrote:
 I'm not suggesting mixing signals, in fact I'm trying to arrive at a method of
 conveniently eliminating one of them.

 I just looked into MMTTY and saw (for the first time)  the ability to select 
 mono,
 left, or right. Kewl! :-P

 73, Mike NF4L


 On 11/27/2010 9:26 AM, Joe Subich, W4TV wrote:
   I suppose the Windoze mixer could be used to set the balance. Or cut
   a wire in the audio cable.

 You don't want to mix the signals ... they would QRM each other.  I
 can't see any reason for mixing them and running independent copies
 of MMTTY or MixW in the dual channel mode is the best way to select
 the signal.

 73,

   ... Joe, W4TV

 On 11/27/2010 8:58 AM, Mike wrote:
 Joe, if you mean stand alone MMTTY, I don't understand. I wouldn't want to 
 copy copy
 both signals.
 Each copy of MMTTY could use a different sound card (given 2 sound cards) 
 but still
 no way to direct sound by channel.

 I suppose the Windoze mixer could be used to set the balance. Or cut a wire 
 in the
 audio cable.

 All that strikes me as a kludge, but I certainly don't have a better 
 solution. :-(

 Mike NF4L


 On 11/27/2010 8:14 AM, Joe Subich, W4TV wrote:
 I don't have a sub rx, so it's never been a problem for me, but I'm
 thinking of adding one.  How does that work if there's a RTTY
 signal on both VFO's (simplex)? Would you have to tap AB?
 The best way to handle RTTY with signals on both receivers is to run
 two copies of MMTTY (or other decoder) - one for reach receiver.  MixW
 has a dual receive capability - I don't know about any of the other
 software.  In general, one decoder uses the soundcard left channel
 and the second uses soundcard right channel audio.  Mixing the two
 audio streams does not work ... it merely results in QRM.

 73,

 ... Joe, W4TV


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Re: [Elecraft] [K3] Line out, speakers, and L-mix-R settings...

2010-11-27 Thread Kok Chen
On Nov 27, 2010, at 11/275:14 AM, Joe Subich, W4TV wrote:

 MixW has a dual [RTTY] receive capability - I don't know about any  
 of the other software.

On the Mac OS X side, cocoaModem has two independent receive channels  
in the wideband RTTY and the dual RTTY interfaces.  There are two  
identical sets of user interfaces in a single window -- this gets rid  
of the window focus problem of running multiple copies of a software  
modem.

There are two cross ellipses, independent mark and space tones, baud  
rate, and filter settings -- you can even run 75 baud and Mark-only on  
one decoder, while running 45.45 baud and Mark/Space decoding on the  
other.  In the case of wideband RTTY, there are independent  
waterfalls.

Dual RTTY decode has been in practice in some time now.  In the old  
days, it was done with multiple TU -- this is one of the reasons why  
normally sane people have multiple HAL ST-8000 in the shack.  Just  
like other modes, having concurrent receive capability on on both the  
DX and a split pile reduces doubling.

Using multiple TU back then required manually scanning the pileup  
using the VFO knob.  If you have a waterfall that is watching the  
pile, you can pretty much pinpoint the DX's QSX by watching where a  
signal appears in the pileup waterfall right after the DX finishes  
sending his exchange.  A software modem that is capable of agile  
transmit can then pounce on that QSX (or find the next hole in the  
direction the DX is tuning).

It used to be like shooting fish in a barrel for people with two RTTY  
decoders and agile receive (e.g., waterfall tuning) to work the split  
RTTY pileups.  Just ask RTTY DXers who have been using cocoaModem's  
wideband RTTY interface.

But more people have that capability today (what with the Flex-5000  
and the LP-PAN), to the point that if you don't have dual decoding and  
agile tuning capability, you are now at a distinct disadvantage.

Of course you need a sound card that has two or more inputs (or a  
digital interface like the microKeyer/digiKeyer).  Some of the cheaper  
digital interfaces are only wired for a single input channel, even  
when the codec is a stereo one.

73
Chen, W7AY

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Re: [Elecraft] [K3] Line out, speakers, and L-mix-R settings...

2010-11-26 Thread James Sarte (K2QI)
No suggestions?

Hope everyone had a good thanksgiving.  I know mine is about to start; my
11mo daughter just came home from pediatric ICU.  I am thankful for that.

73,
James K2QI

On Wed, Nov 24, 2010 at 10:19 PM, James Sarte (K2QI) k2qi@gmail.comwrote:

 Curious thing I noticed today; plugged in my headphones only to continue
 hearing monoraul audio coming out of my PC's speakers.  It took me a second
 to realize that audio from the K3 was being piped out of the LINE OUT jack
 in the rear, into my PC's input, and out to the two speakers I have sitting
 on my desk.

 At first I thought it was strange that the audio I was hearing was only
 coming out of the left speaker rather than both.  I checked the manual and
 after a few minutes of reading realized that under normal situations,
 activating the SUB would provide the right channel.  I then started playing
 around a bit more, and figured I'd post this question to the group just to
 make sure I understand how these functions work properly.

 My experimentation led me to the SPKRS settings which was currently set at
 1.  With the SUB off, I changed the speaker setting to 2 but no change;
 audio was still being heard on the left speaker and not the right.  Am I
 then correct in my assumption that the speakers setting has no bearing on
 the actual number of channels being output from the LINE OUT jack?

 This brings me to my second question - is there a way to get both L and R
 channel audio output to the LINE OUT jack just from the main receiver
 without the SUB being activated?

 My last question, does the SPEAKERS setting only affect the SPKR OUT jack
 on the rear panel?  According to the manual, leaving it at 1 will only
 provide one channel of audio.  Would setting it to 2 provide both LR
 channels to the speakers regardless of SUB activation?

 Mni tnx es happy thanksgiving.
 --
 73 de James K2QI
 President UNARC/4U1UN




-- 
73 de James K2QI
President UNARC/4U1UN
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Re: [Elecraft] [K3] Line out, speakers, and L-mix-R settings...

2010-11-26 Thread Richard Ferch
James,

I hope your daughter is feeling better soon.

Re your questions (based on my observations using sound card software on 
both channels from the LINE OUT jack, and stereo headphones plugged into 
the SPKRS jack):

1. The CONFIG:SPKRS setting only affects the rear panel SPKRS jack. It 
has no effect on LINE OUT.

2. None of the audio mixing or level controls has any effect on the LINE 
OUT signal, as far as I can tell. The left channel always carries the 
main RX output, and the right channel always carries the sub RX output. 
The LINE output is raw unmixed audio from the two receivers at a fixed 
level set by CONFIG:LIN OUT.

3. When CONFIG:SPKRS = 2, the SPKRS jack behaves the same as the 
headphone jacks. With SUB off, the main RX is in both channels, and with 
SUB on and the normal L-MIX-R setting, the main RX and sub RX are in 
left and right channels respectively. Changing the L-MIX-R setting 
affects the SPKRS the same way as it affects the PHONES output.

When CONFIG:SPKRS = 1, the only speaker output is on the left channel of 
the SPKRS jack, i.e. it disables the right channel output even when SUB 
is on. If SUB is on, the external mono speaker on the left channel 
carries audio from both receivers mixed together, the same as the 
internal speaker. The purpose of the CONFIG:SPKRS = 1 option is to 
protect the speaker amp if a mono plug is plugged into the SPKRS jack.

73,
Rich VE3KI






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Re: [Elecraft] [K3] Line out, speakers, and L-mix-R settings...

2010-11-26 Thread k2qi . nyc
Thank you Rich,

My daughter had a severe case of bronchiolitis. I'm happy to say that she's on 
the mend back at home.

Also, I'm grateful for your reply to my questions. You have confirmed my 
assumptions.

73 and Happy Holidays,
James K2QI
Sent via BlackBerry from T-Mobile

-Original Message-
From: Richard Ferch ve3...@storm.ca
Sender: elecraft-boun...@mailman.qth.net
Date: Fri, 26 Nov 2010 23:52:09 
To: elecraft@mailman.qth.netelecraft@mailman.qth.net
Subject: Re: [Elecraft] [K3] Line out, speakers, and L-mix-R settings...

James,

I hope your daughter is feeling better soon.

Re your questions (based on my observations using sound card software on 
both channels from the LINE OUT jack, and stereo headphones plugged into 
the SPKRS jack):

1. The CONFIG:SPKRS setting only affects the rear panel SPKRS jack. It 
has no effect on LINE OUT.

2. None of the audio mixing or level controls has any effect on the LINE 
OUT signal, as far as I can tell. The left channel always carries the 
main RX output, and the right channel always carries the sub RX output. 
The LINE output is raw unmixed audio from the two receivers at a fixed 
level set by CONFIG:LIN OUT.

3. When CONFIG:SPKRS = 2, the SPKRS jack behaves the same as the 
headphone jacks. With SUB off, the main RX is in both channels, and with 
SUB on and the normal L-MIX-R setting, the main RX and sub RX are in 
left and right channels respectively. Changing the L-MIX-R setting 
affects the SPKRS the same way as it affects the PHONES output.

When CONFIG:SPKRS = 1, the only speaker output is on the left channel of 
the SPKRS jack, i.e. it disables the right channel output even when SUB 
is on. If SUB is on, the external mono speaker on the left channel 
carries audio from both receivers mixed together, the same as the 
internal speaker. The purpose of the CONFIG:SPKRS = 1 option is to 
protect the speaker amp if a mono plug is plugged into the SPKRS jack.

73,
Rich VE3KI






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[Elecraft] [K3] Line out, speakers, and L-mix-R settings...

2010-11-24 Thread James Sarte (K2QI)
Curious thing I noticed today; plugged in my headphones only to continue
hearing monoraul audio coming out of my PC's speakers.  It took me a second
to realize that audio from the K3 was being piped out of the LINE OUT jack
in the rear, into my PC's input, and out to the two speakers I have sitting
on my desk.

At first I thought it was strange that the audio I was hearing was only
coming out of the left speaker rather than both.  I checked the manual and
after a few minutes of reading realized that under normal situations,
activating the SUB would provide the right channel.  I then started playing
around a bit more, and figured I'd post this question to the group just to
make sure I understand how these functions work properly.

My experimentation led me to the SPKRS settings which was currently set at
1.  With the SUB off, I changed the speaker setting to 2 but no change;
audio was still being heard on the left speaker and not the right.  Am I
then correct in my assumption that the speakers setting has no bearing on
the actual number of channels being output from the LINE OUT jack?

This brings me to my second question - is there a way to get both L and R
channel audio output to the LINE OUT jack just from the main receiver
without the SUB being activated?

My last question, does the SPEAKERS setting only affect the SPKR OUT jack on
the rear panel?  According to the manual, leaving it at 1 will only provide
one channel of audio.  Would setting it to 2 provide both LR channels to
the speakers regardless of SUB activation?

Mni tnx es happy thanksgiving.
-- 
73 de James K2QI
President UNARC/4U1UN
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