Elecraft

New transmit monitor

Classic

List

Threaded

6 messages Options

w4giw

New transmit monitor

After waiting for 4 years, I was very disappointed that the new monitor in addition to the RF views did not provide a way to look at the transmit audio in the pass band in the same manner as it does for received SSB audio. All of the newer Icom Rigs have this capability.

On numerous occasions I have briefly seen my own audio show up during transmit but as soon as speech is paused, the P3 reverts to receive and on transmit the scope freezes. I have been told this occurs when a pin on the RS232 makes and intermittent poor connection. The same thing can be forced by pulling the RS 232 input to the P3. I am also told that this ability is the result of a “stray” pickup. In my case the strength of the stray pickup, when it occurs, has always been enough to provide a good view of my audio if I am running 100 watts. By making some pick up changes the strength of this stray signal could be increased or amplified.

It would seem very possible to have a menu selection that would allow the P3 to break the connection upon transmit to allow you to use the display to set up your own audio and to see what is happening at the audio level. The P3 now shifts back and forth from receive to transmit and instead of freezing the display during transmit, in a new mode it would allow your own audio to display in the pass band instead of the new SSB view.

It might even be done on a manual basis by having an RS 232 adapter in the line that would have a manual switch connected that would open and close the line. This would only be used when working with your own audio. In this case the new modes would have to be turned off to take the P3 back to where it is now.

Any one else have any interest in the above or any experience in this area??? Wayne, Eric or Al any comment please.
______________________________________________________________
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
Message delivered to [hidden email]

Elecraft mailing list

Re: New transmit monitor

I also was disappointed as to not see that feature

I would like to see that added

From: "[hidden email]" <[hidden email]>
To: [hidden email]
Sent: Tuesday, May 19, 2015 11:04 AM
Subject: [Elecraft] New transmit monitor

After waiting for 4 years, I was very disappointed that the new monitor in addition to the RF views did not provide a way to look at the transmit audio in the pass band in the same manner as it does for received SSB audio. All of the newer Icom Rigs have this capability.

On numerous occasions I have briefly seen my own audio show up during transmit but as soon as speech is paused, the P3 reverts to receive and on transmit the scope freezes. I have been told this occurs when a pin on the RS232 makes and intermittent poor connection. The same thing can be forced by pulling the RS 232 input to the P3. I am also told that this ability is the result of a “stray” pickup. In my case the strength of the stray pickup, when it occurs, has always been enough to provide a good view of my audio if I am running 100 watts. By making some pick up changes the strength of this stray signal could be increased or amplified.

It would seem very possible to have a menu selection that would allow the P3 to break the connection upon transmit to allow you to use the display to set up your own audio and to see what is happening at the audio level. The P3 now shifts back and forth from receive to transmit and instead of freezing the display during transmit, in a new mode it would allow your own audio to display in the pass band instead of the new SSB view.

It might even be done on a manual basis by having an RS 232 adapter in the line that would have a manual switch connected that would open and close the line. This would only be used when working with your own audio. In this case the new modes would have to be turned off to take the P3 back to where it is now.

Any one else have any interest in the above or any experience in this area??? Wayne, Eric or Al any comment please.
______________________________________________________________
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
Message delivered to [hidden email]

______________________________________________________________
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
Message delivered to [hidden email]

Alan Bloom

Re: New transmit monitor

In reply to this post by w4giw

The signal that the P3 receives when the K3 is in transmit mode is due
to random leakage of the transmit IF signal out the K3's IF OUT
connector. One reason I haven't implemented this as a standard feature
is that it might not be reliable. If you happen to have a K3 with
better isolation than most, there may not be enough IF leakage to be
usable. (I didn't want to volunteer to take the customer service calls. :=)

Another reason is that you can't use it to measure signal quality
anyway. It just displays the IF signal before up-conversion and
amplification, so most signal defects don't show up.

The one thing it is useful for is to adjust the transmit equalizer. I
did this on my own K3 to reduce the bass and enhance the treble to get a
more-or-less flat frequency response with my voice and mic.

If you want to do that, just temporarily disconnect the RS-232 cable
between the K3 and P3. That way the P3 doesn't know when the K3 is
transmitting and so it continues to display the spectrum. Since
adjusting the equalizer is generally a one-time "set and forget"
procedure, I figured it is not too inconvenient to have to unhook the
RS-232.

Alan N1AL

On 05/19/2015 08:04 AM, [hidden email] wrote:

> After waiting for 4 years, I was very disappointed that the new
> monitor in addition to the RF views did not provide a way to look at
> the transmit audio in the pass band in the same manner as it does
> for received SSB audio. All of the newer Icom Rigs have this
> capability.
>
> On numerous occasions I have briefly seen my own audio show up during
> transmit but as soon as speech is paused, the P3 reverts to receive
> and on transmit the scope freezes. I have been told this occurs when
> a pin on the RS232 makes and intermittent poor connection. The same
> thing can be forced by pulling the RS 232 input to the P3. I am also
> told that this ability is the result of a “stray” pickup. In my case
> the strength of the stray pickup, when it occurs, has always been
> enough to provide a good view of my audio if I am running 100 watts.
> By making some pick up changes the strength of this stray signal
> could be increased or amplified.
>
> It would seem very possible to have a menu selection that would allow
> the P3 to break the connection upon transmit to allow you to use the
> display to set up your own audio and to see what is happening at the
> audio level. The P3 now shifts back and forth from receive to
> transmit and instead of freezing the display during transmit, in a
> new mode it would allow your own audio to display in the pass band
> instead of the new SSB view.
>
> It might even be done on a manual basis by having an RS 232 adapter
> in the line that would have a manual switch connected that would open
> and close the line. This would only be used when working with your
> own audio. In this case the new modes would have to be turned off to
> take the P3 back to where it is now.
>
> Any one else have any interest in the above or any experience in this
> area??? Wayne, Eric or Al any comment please.
> ______________________________________________________________

Elecraft mailing list

Re: New transmit monitor

Any way to get that a menu option that we can turn on and off as desired?

From: Alan <[hidden email]>
To: [hidden email]
Sent: Tuesday, May 19, 2015 5:37 PM
Subject: Re: [Elecraft] New transmit monitor

The signal that the P3 receives when the K3 is in transmit mode is due
to random leakage of the transmit IF signal out the K3's IF OUT
connector. One reason I haven't implemented this as a standard feature
is that it might not be reliable. If you happen to have a K3 with
better isolation than most, there may not be enough IF leakage to be
usable. (I didn't want to volunteer to take the customer service calls. :=)

Another reason is that you can't use it to measure signal quality
anyway. It just displays the IF signal before up-conversion and
amplification, so most signal defects don't show up.

The one thing it is useful for is to adjust the transmit equalizer. I
did this on my own K3 to reduce the bass and enhance the treble to get a
more-or-less flat frequency response with my voice and mic.

If you want to do that, just temporarily disconnect the RS-232 cable
between the K3 and P3. That way the P3 doesn't know when the K3 is
transmitting and so it continues to display the spectrum. Since
adjusting the equalizer is generally a one-time "set and forget"
procedure, I figured it is not too inconvenient to have to unhook the
RS-232.

Alan N1AL

On 05/19/2015 08:04 AM, [hidden email] wrote:

______________________________________________________________
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
Message delivered to [hidden email]

______________________________________________________________
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
Message delivered to [hidden email]

David Olean

Re: New transmit monitor

I adjusted my equalizer along the same lines except I used a 2nd K3 with P3
panadaptor. I tweaked it until I saw a nice flat audio response across the
entire SSB bandwidth. I was using a David Clark headset with an electret mic
element. As soon as I did that I started getting almost 100% positve remarks
on the audio without even asking the other station how it sounded. Most
signals I hear seem to have a bass peak and the high end is usually down
many dB. It helps if you turn on averaging as just one pass of a few words
can give a misleading result. I guess the best way is to insert an audio
oscillator signal into the mic and adjust as you sweep up in frequency.

Dave K1WHS

----- Original Message -----
From: "Harry Yingst via Elecraft" <[hidden email]>
To: <[hidden email]>; <[hidden email]>
Sent: Tuesday, May 19, 2015 11:13 PM
Subject: Re: [Elecraft] New transmit monitor

>
> Any way to get that a menu option that we can turn on and off as desired?
>
>
>
> From: Alan <[hidden email]>
> To: [hidden email]
> Sent: Tuesday, May 19, 2015 5:37 PM
> Subject: Re: [Elecraft] New transmit monitor
>
> The signal that the P3 receives when the K3 is in transmit mode is due
> to random leakage of the transmit IF signal out the K3's IF OUT
> connector. One reason I haven't implemented this as a standard feature
> is that it might not be reliable. If you happen to have a K3 with
> better isolation than most, there may not be enough IF leakage to be
> usable. (I didn't want to volunteer to take the customer service calls.
> :=)
>
> Another reason is that you can't use it to measure signal quality
> anyway. It just displays the IF signal before up-conversion and
> amplification, so most signal defects don't show up.
>
> The one thing it is useful for is to adjust the transmit equalizer. I
> did this on my own K3 to reduce the bass and enhance the treble to get a
> more-or-less flat frequency response with my voice and mic.
>
> If you want to do that, just temporarily disconnect the RS-232 cable
> between the K3 and P3. That way the P3 doesn't know when the K3 is
> transmitting and so it continues to display the spectrum. Since
> adjusting the equalizer is generally a one-time "set and forget"
> procedure, I figured it is not too inconvenient to have to unhook the
> RS-232.
>
> Alan N1AL
>
>
>
>
>
> On 05/19/2015 08:04 AM, [hidden email] wrote:
>> After waiting for 4 years, I was very disappointed that the new
>> monitor in addition to the RF views did not provide a way to look at
>> the transmit audio in the pass band in the same manner as it does
>> for received SSB audio. All of the newer Icom Rigs have this
>> capability.
>>
>> On numerous occasions I have briefly seen my own audio show up during
>> transmit but as soon as speech is paused, the P3 reverts to receive
>> and on transmit the scope freezes. I have been told this occurs when
>> a pin on the RS232 makes and intermittent poor connection. The same
>> thing can be forced by pulling the RS 232 input to the P3. I am also
>> told that this ability is the result of a “stray” pickup. In my case
>> the strength of the stray pickup, when it occurs, has always been
>> enough to provide a good view of my audio if I am running 100 watts.
>> By making some pick up changes the strength of this stray signal
>> could be increased or amplified.
>>
>> It would seem very possible to have a menu selection that would allow
>> the P3 to break the connection upon transmit to allow you to use the
>> display to set up your own audio and to see what is happening at the
>> audio level. The P3 now shifts back and forth from receive to
>> transmit and instead of freezing the display during transmit, in a
>> new mode it would allow your own audio to display in the pass band
>> instead of the new SSB view.
>>
>> It might even be done on a manual basis by having an RS 232 adapter
>> in the line that would have a manual switch connected that would open
>> and close the line. This would only be used when working with your
>> own audio. In this case the new modes would have to be turned off to
>> take the P3 back to where it is now.
>>
>> Any one else have any interest in the above or any experience in this
>> area??? Wayne, Eric or Al any comment please.
>> ______________________________________________________________
>
> ______________________________________________________________
> 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
> Message delivered to [hidden email]
>
>
> ______________________________________________________________
> 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
> Message delivered to [hidden email]

Elecraft mailing list

Re: New transmit monitor

I used to have a Flex-radio and this is the one feature I miss (being able to see the Transmitted signal)

From: Dave Olean <[hidden email]>
To: Harry Yingst <[hidden email]>; [hidden email]; [hidden email]
Sent: Tuesday, May 19, 2015 7:36 PM
Subject: Re: [Elecraft] New transmit monitor

I adjusted my equalizer along the same lines except I used a 2nd K3 with P3
panadaptor. I tweaked it until I saw a nice flat audio response across the
entire SSB bandwidth. I was using a David Clark headset with an electret mic
element. As soon as I did that I started getting almost 100% positve remarks
on the audio without even asking the other station how it sounded. Most
signals I hear seem to have a bass peak and the high end is usually down
many dB. It helps if you turn on averaging as just one pass of a few words
can give a misleading result. I guess the best way is to insert an audio
oscillator signal into the mic and adjust as you sweep up in frequency.

Dave K1WHS

----- Original Message -----
From: "Harry Yingst via Elecraft" <[hidden email]>
To: <[hidden email]>; <[hidden email]>
Sent: Tuesday, May 19, 2015 11:13 PM
Subject: Re: [Elecraft] New transmit monitor