Date   

Re: Unusual PSK31 in Waterfall

Tom
 

Rick, it was not you.

 

Thanks.

 

                                                --Tom, KC3DNG

 

From: 070Club@groups.io [mailto:070Club@groups.io] On Behalf Of Rick Sterling
Sent: Monday, July 22, 2019 12:59 PM
To: 070Club@groups.io
Subject: Re: [070Club] Unusual PSK31 in Waterfall

 

I was just wondering, was this my signal Tom?

KI7OIY

 

Rick

 

On Mon, Jul 22, 2019 at 7:55 AM Bill Garwood <n4gbk@...> wrote:

Probably overdriven as Jerry mentioned.  But a clean signal can become distorted at the receiving end.  If you receive a wide or distorted signal, maybe try turning down the RF gain on your receiver or turn on an RF attenuator to see if this improves the reception of that station.  There is also some debate as to whether to turn on or off the AGC in your receiver.  Just be aware that it is not always the transmitting station at fault as the distortion which causes the PSK software to have problems decoding can be caused by propagation and /or by the technical capabilities and adjustments or maladjustments of the equipment at the receiving end.

Enjoy PSK31.  Hope to see you soon on the waterfall.

 

Happy Radio and 73!

Bill N4GBK in FM16

 

Sent from Mail for Windows 10

 


From: 070Club@groups.io <070Club@groups.io> on behalf of Jerry N9AVY <n9avy@...>
Sent: Sunday, July 21, 2019 5:37:53 PM
To: 070Club@groups.io <070Club@groups.io>
Subject: Re: [070Club] Unusual PSK31 in Waterfall

 

Looks like overdriven or overpowered signal is my guess.  Also seems to be mis-tuned. Signal should be between the red lines.  Hope you had mode set to BPSK31.

 

What software are you using ??

Jerry  n9avy

 

Sent from Mail for Windows 10

 

From: Tom
Sent: Sunday, July 21, 2019 4:01 PM
To: 070Club@groups.io
Subject: [070Club] Unusual PSK31 in Waterfall

 

Hello,

 

            Bill, # 1191, just told me there is no such thing as a stupid question in this group so here goes.

 

            I spotted the below on my waterfall the other day during a QSO with the transmitting station. It’s a PSK31 signal but looks very different from what I am used to seeing:

 

 

            Error! Filename not specified.

 

            What is unusual are the side bands that appear on both sides of the main signal. At first I thought it was another protocol interfering with the station but the side bands only appeared when the station was transmitting. The QSO did not go so well. He was getting good copy on me but I was only getting about 20 to 30 percent of what he was sending. 

 

            I am curious if anyone has seen this before and if it’s indicative of some type of interference or operating problem.

 

Thanks.

 

 

                                                --Tom, KC3DNG

 


Re: Unusual PSK31 in Waterfall

Tom
 

Thank you all for the great feedback. 


Jerry, you  asked about the software I am running. It is Fldigi v4.1.03.  The mode I was operating at the time was BPSK31.  The setup is a FT-991A connected via USB to a Win7 PC.

 

Bill, thank you for the suggestion on turning down RF gain and/or turning off AGC. I will keep that in mind in case I see this again. I know that I had to set the data port gain on my FT-991A to a 6 out of 100 in order to not overdrive when I transmit so it makes sense that some people could be having this problem (an overdriven signal).

 

Thanks.

 

                       --Tom, KC3DNG

 

From: 070Club@groups.io [mailto:070Club@groups.io] On Behalf Of Jerry N9AVY
Sent: Monday, July 22, 2019 11:05 AM
To: 070Club@groups.io
Subject: Re: [070Club] Unusual PSK31 in Waterfall

 

In my 16 years tenure as an Official Observer with ARRL,  I used to find a lot of wide signals.  My first move was to turn off AGC and insert attenuation. This usually proved whether the signal was at fault or not.  In most cases the signal was fine.

 

Many times the fault may lay in the computer’s sound card as no 2 soundcards are alike and may introduce distortion into signal.  There are also other factors such as strong adjacent signal interference or mixing of products of modulation or even local noise in shack.

 

Upshot of this is if it happens with regularity it should be a concern, but if it’s only a one time thing , don’t be too concerned.

 

Jerry  n9avy

 

 

Sent from Mail for Windows 10

 

From: Bill Garwood
Sent: Monday, July 22, 2019 9:55 AM
To: 070Club@groups.io
Subject: Re: [070Club] Unusual PSK31 in Waterfall

 

Probably overdriven as Jerry mentioned.  But a clean signal can become distorted at the receiving end.  If you receive a wide or distorted signal, maybe try turning down the RF gain on your receiver or turn on an RF attenuator to see if this improves the reception of that station.  There is also some debate as to whether to turn on or off the AGC in your receiver.  Just be aware that it is not always the transmitting station at fault as the distortion which causes the PSK software to have problems decoding can be caused by propagation and /or by the technical capabilities and adjustments or maladjustments of the equipment at the receiving end.

Enjoy PSK31.  Hope to see you soon on the waterfall.

 

Happy Radio and 73!

Bill N4GBK in FM16

 

Sent from Mail for Windows 10

 

From: 070Club@groups.io <070Club@groups.io> on behalf of Jerry N9AVY <n9avy@...>
Sent: Sunday, July 21, 2019 5:37:53 PM
To: 070Club@groups.io <070Club@groups.io>
Subject: Re: [070Club] Unusual PSK31 in Waterfall

 

Looks like overdriven or overpowered signal is my guess.  Also seems to be mis-tuned. Signal should be between the red lines.  Hope you had mode set to BPSK31.

 

What software are you using ??

Jerry  n9avy

 

Sent from Mail for Windows 10

 

From: Tom
Sent: Sunday, July 21, 2019 4:01 PM
To: 070Club@groups.io
Subject: [070Club] Unusual PSK31 in Waterfall

 

Hello,

 

            Bill, # 1191, just told me there is no such thing as a stupid question in this group so here goes.

 

            I spotted the below on my waterfall the other day during a QSO with the transmitting station. It’s a PSK31 signal but looks very different from what I am used to seeing:

 

 

           

 

            What is unusual are the side bands that appear on both sides of the main signal. At first I thought it was another protocol interfering with the station but the side bands only appeared when the station was transmitting. The QSO did not go so well. He was getting good copy on me but I was only getting about 20 to 30 percent of what he was sending. 

 

            I am curious if anyone has seen this before and if it’s indicative of some type of interference or operating problem.

 

Thanks.

 

 

                                                --Tom, KC3DNG

 

 


Anyone need DM80?

John Hendry KG5OIB
 

I'm in Marathon, Texas for the next 7 days, and will try to work 20 and 40 meters from here.   

I'm definitely going to work some this evening.

John
KG5OIB


Re: Unusual PSK31 in Waterfall

Rick Sterling <KI7OIY@...>
 

I was just wondering, was this my signal Tom?
KI7OIY

Rick

On Mon, Jul 22, 2019 at 7:55 AM Bill Garwood <n4gbk@...> wrote:

Probably overdriven as Jerry mentioned.  But a clean signal can become distorted at the receiving end.  If you receive a wide or distorted signal, maybe try turning down the RF gain on your receiver or turn on an RF attenuator to see if this improves the reception of that station.  There is also some debate as to whether to turn on or off the AGC in your receiver.  Just be aware that it is not always the transmitting station at fault as the distortion which causes the PSK software to have problems decoding can be caused by propagation and /or by the technical capabilities and adjustments or maladjustments of the equipment at the receiving end.

Enjoy PSK31.  Hope to see you soon on the waterfall.

 

Happy Radio and 73!

Bill N4GBK in FM16

 

Sent from Mail for Windows 10

 


From: 070Club@groups.io <070Club@groups.io> on behalf of Jerry N9AVY <n9avy@...>
Sent: Sunday, July 21, 2019 5:37:53 PM
To: 070Club@groups.io <070Club@groups.io>
Subject: Re: [070Club] Unusual PSK31 in Waterfall
 

Looks like overdriven or overpowered signal is my guess.  Also seems to be mis-tuned. Signal should be between the red lines.  Hope you had mode set to BPSK31.

 

What software are you using ??

Jerry  n9avy

 

Sent from Mail for Windows 10

 

From: Tom
Sent: Sunday, July 21, 2019 4:01 PM
To: 070Club@groups.io
Subject: [070Club] Unusual PSK31 in Waterfall

 

Hello,

 

            Bill, # 1191, just told me there is no such thing as a stupid question in this group so here goes.

 

            I spotted the below on my waterfall the other day during a QSO with the transmitting station. It’s a PSK31 signal but looks very different from what I am used to seeing:

 

 

            Capture.JPG

 

            What is unusual are the side bands that appear on both sides of the main signal. At first I thought it was another protocol interfering with the station but the side bands only appeared when the station was transmitting. The QSO did not go so well. He was getting good copy on me but I was only getting about 20 to 30 percent of what he was sending. 

 

            I am curious if anyone has seen this before and if it’s indicative of some type of interference or operating problem.

 

Thanks.

 

 

                                                --Tom, KC3DNG

 


Re: Unusual PSK31 in Waterfall

Jerry N9AVY
 

In my 16 years tenure as an Official Observer with ARRL,  I used to find a lot of wide signals.  My first move was to turn off AGC and insert attenuation. This usually proved whether the signal was at fault or not.  In most cases the signal was fine.

 

Many times the fault may lay in the computer’s sound card as no 2 soundcards are alike and may introduce distortion into signal.  There are also other factors such as strong adjacent signal interference or mixing of products of modulation or even local noise in shack.

 

Upshot of this is if it happens with regularity it should be a concern, but if it’s only a one time thing , don’t be too concerned.

 

Jerry  n9avy

 

 

Sent from Mail for Windows 10

 

From: Bill Garwood
Sent: Monday, July 22, 2019 9:55 AM
To: 070Club@groups.io
Subject: Re: [070Club] Unusual PSK31 in Waterfall

 

Probably overdriven as Jerry mentioned.  But a clean signal can become distorted at the receiving end.  If you receive a wide or distorted signal, maybe try turning down the RF gain on your receiver or turn on an RF attenuator to see if this improves the reception of that station.  There is also some debate as to whether to turn on or off the AGC in your receiver.  Just be aware that it is not always the transmitting station at fault as the distortion which causes the PSK software to have problems decoding can be caused by propagation and /or by the technical capabilities and adjustments or maladjustments of the equipment at the receiving end.

Enjoy PSK31.  Hope to see you soon on the waterfall.

 

Happy Radio and 73!

Bill N4GBK in FM16

 

Sent from Mail for Windows 10

 

From: 070Club@groups.io <070Club@groups.io> on behalf of Jerry N9AVY <n9avy@...>
Sent: Sunday, July 21, 2019 5:37:53 PM
To: 070Club@groups.io <070Club@groups.io>
Subject: Re: [070Club] Unusual PSK31 in Waterfall

 

Looks like overdriven or overpowered signal is my guess.  Also seems to be mis-tuned. Signal should be between the red lines.  Hope you had mode set to BPSK31.

 

What software are you using ??

Jerry  n9avy

 

Sent from Mail for Windows 10

 

From: Tom
Sent: Sunday, July 21, 2019 4:01 PM
To: 070Club@groups.io
Subject: [070Club] Unusual PSK31 in Waterfall

 

Hello,

 

            Bill, # 1191, just told me there is no such thing as a stupid question in this group so here goes.

 

            I spotted the below on my waterfall the other day during a QSO with the transmitting station. It’s a PSK31 signal but looks very different from what I am used to seeing:

 

 

           

 

            What is unusual are the side bands that appear on both sides of the main signal. At first I thought it was another protocol interfering with the station but the side bands only appeared when the station was transmitting. The QSO did not go so well. He was getting good copy on me but I was only getting about 20 to 30 percent of what he was sending. 

 

            I am curious if anyone has seen this before and if it’s indicative of some type of interference or operating problem.

 

Thanks.

 

 

                                                --Tom, KC3DNG

 

 


Re: Unusual PSK31 in Waterfall

Bill Garwood
 

Probably overdriven as Jerry mentioned.  But a clean signal can become distorted at the receiving end.  If you receive a wide or distorted signal, maybe try turning down the RF gain on your receiver or turn on an RF attenuator to see if this improves the reception of that station.  There is also some debate as to whether to turn on or off the AGC in your receiver.  Just be aware that it is not always the transmitting station at fault as the distortion which causes the PSK software to have problems decoding can be caused by propagation and /or by the technical capabilities and adjustments or maladjustments of the equipment at the receiving end.

Enjoy PSK31.  Hope to see you soon on the waterfall.

 

Happy Radio and 73!

Bill N4GBK in FM16

 

Sent from Mail for Windows 10

 


From: 070Club@groups.io <070Club@groups.io> on behalf of Jerry N9AVY <n9avy@...>
Sent: Sunday, July 21, 2019 5:37:53 PM
To: 070Club@groups.io <070Club@groups.io>
Subject: Re: [070Club] Unusual PSK31 in Waterfall
 

Looks like overdriven or overpowered signal is my guess.  Also seems to be mis-tuned. Signal should be between the red lines.  Hope you had mode set to BPSK31.

 

What software are you using ??

Jerry  n9avy

 

Sent from Mail for Windows 10

 

From: Tom
Sent: Sunday, July 21, 2019 4:01 PM
To: 070Club@groups.io
Subject: [070Club] Unusual PSK31 in Waterfall

 

Hello,

 

            Bill, # 1191, just told me there is no such thing as a stupid question in this group so here goes.

 

            I spotted the below on my waterfall the other day during a QSO with the transmitting station. It’s a PSK31 signal but looks very different from what I am used to seeing:

 

 

           

 

            What is unusual are the side bands that appear on both sides of the main signal. At first I thought it was another protocol interfering with the station but the side bands only appeared when the station was transmitting. The QSO did not go so well. He was getting good copy on me but I was only getting about 20 to 30 percent of what he was sending. 

 

            I am curious if anyone has seen this before and if it’s indicative of some type of interference or operating problem.

 

Thanks.

 

 

                                                --Tom, KC3DNG

 


Re: Unusual PSK31 in Waterfall

Jerry N9AVY
 

Looks like overdriven or overpowered signal is my guess.  Also seems to be mis-tuned. Signal should be between the red lines.  Hope you had mode set to BPSK31.

 

What software are you using ??

Jerry  n9avy

 

Sent from Mail for Windows 10

 

From: Tom
Sent: Sunday, July 21, 2019 4:01 PM
To: 070Club@groups.io
Subject: [070Club] Unusual PSK31 in Waterfall

 

Hello,

 

            Bill, # 1191, just told me there is no such thing as a stupid question in this group so here goes.

 

            I spotted the below on my waterfall the other day during a QSO with the transmitting station. It’s a PSK31 signal but looks very different from what I am used to seeing:

 

 

           

 

            What is unusual are the side bands that appear on both sides of the main signal. At first I thought it was another protocol interfering with the station but the side bands only appeared when the station was transmitting. The QSO did not go so well. He was getting good copy on me but I was only getting about 20 to 30 percent of what he was sending. 

 

            I am curious if anyone has seen this before and if it’s indicative of some type of interference or operating problem.

 

Thanks.

 

 

                                                --Tom, KC3DNG

 


Re: Unusual PSK31 in Waterfall

W5DP
 

My first guess is that the station is over modulating a whole lot. That's why you had difficulty in decoding his signal. The sidebands are produced by the spurious emissions that are caused from extreme over modulating. IOW, his ALC is probably off the scale. 

de Dustry
W5DP


Unusual PSK31 in Waterfall

Tom
 

Hello,

 

            Bill, # 1191, just told me there is no such thing as a stupid question in this group so here goes.

 

            I spotted the below on my waterfall the other day during a QSO with the transmitting station. It’s a PSK31 signal but looks very different from what I am used to seeing:

 

 

            Capture.JPG

 

            What is unusual are the side bands that appear on both sides of the main signal. At first I thought it was another protocol interfering with the station but the side bands only appeared when the station was transmitting. The QSO did not go so well. He was getting good copy on me but I was only getting about 20 to 30 percent of what he was sending. 

 

            I am curious if anyone has seen this before and if it’s indicative of some type of interference or operating problem.

 

Thanks.

 

 

                                                --Tom, KC3DNG


Re: Welcome

Jerry N9AVY
 

Tom:

 

Don’t be afraid to ask questions.  That’s why we’re all here.    No dumb questions , just dumb answers. 

 

Welcome and 73,

 

Jerry N9AVY

 

Sent from Mail for Windows 10

 

From: Tom
Sent: Sunday, July 21, 2019 3:28 PM
To: 070Club@groups.io
Subject: Re: [070Club] Welcome

 

Hello Jim and Group,

    Thanks very much for the welcome. It's great to be part of the group. I am new to HF and

even more new to PSK31. Got started on field day when a club-mate let me run his digital station while he took a break. I was hooked and haven't been able stop.

I am still trying to figure a lot of this out so if you see me do something stupid please let me know.

Thanks.


                              --Tom, KC3DNG

 


Re: Welcome

Tom
 

Hello Jim and Group,

    Thanks very much for the welcome. It's great to be part of the group. I am new to HF and even more new to PSK31. Got started on field day when a club-mate let me run his digital station while he took a break. I was hooked and haven't been able stop.

I am still trying to figure a lot of this out so if you see me do something stupid please let me know.

Thanks.


                              --Tom, KC3DNG


365 Date Watch List - VA3TPS

stan W9SMR
 

Steve, VA3TPS, of Fenelon Falls, ON has completed his 360 award with 362 Dates worked, including Leap Day.

Help Steve whip this one out by looking for him on 8/8, 8/10, 11/10 and 11/11.

Good job, Steve, on this as well as Top Dog in the 40M Firecracker Sprint and 1st Place in the TDW Bonus Station Category.

You set the bar awfully high!!

73
Stan
W9SMR - 070  #1611
PODXS 070 - PR Director


Welcome

Jim K5SP
 

Please join me in welcoming our new PODXS070 member(s):

2698?? Tom?? KC3DNG

Jim K5SP
Membership Director.


--
Jim,  K5SP #483
Member Services Director


Re: LONP and 26 Awards First Upload - KC3FL

David, K9DWR
 

Well, that’s ONE way to do it… nice job :-)


David, K9DWR
#1604 LONP #255
david@graniteweb.com

On Jul 18, 2019, at 11:28, stan robinson <robinstan@hotmail.com> wrote:

John, KC3FL, 070 #2566

Congrats on a fabulous first upload of 3,231 QSOs. You leaped right over the LONP 100 and grabbed the LONP 200 level as LONP #423.

And grabbing those 26 other awards is phenomenal. To complete your 366 Award, you just need those 5 dates in September/October and of course, the next Leap Day!


LONP and 26 Awards First Upload - KC3FL

stan W9SMR
 

John, KC3FL, 070 #2566

Congrats on a fabulous first upload of 3,231 QSOs. You leaped right over the LONP 100 and grabbed the LONP 200 level as LONP #423.

And grabbing those 26 other awards is phenomenal. To complete your 366 Award, you just need those 5 dates in September/October and of course, the next Leap Day!

Keep up the good work!

We'll be looking for you.

73,
Stan
W9SMR - 070  #1611
PODXS 070 - PR Director


Re: Welcome

stan W9SMR
 

Welcome Ray!!

I enjoyed our Ragchew yesterday and I am so pleased that you have joined this fabulous group.

Will look for you on the waterfall again.

73,
Stan
W9SMR/9

________________________________________
From: 070Club@groups.io <070Club@groups.io> on behalf of Jim K5SP <jinnis@swbell.net>
Sent: Thursday, July 18, 2019 8:22 AM
To: 070Club@groups.io; WA1FFT@aol.com
Subject: [070Club] Welcome

Please join me in welcoming our new PODXS070 member(s):??

2697?? Ray?? WA1FFT

Jim K5SP
Membership Director

--
Jim, K5SP #483
Member Services Director


Welcome

Jim K5SP
 

Please join me in welcoming our new PODXS070 member(s):??

2697?? Ray?? WA1FFT

Jim K5SP
Membership Director
--
Jim,  K5SP #483
Member Services Director


Re: Today on 20m

Jerry N9AVY
 

Someone should have known better than to have DXpedition on that frequency or near it.  I took advantage of that to call CQ in various digi modes.  I was as legal as they were !   

 

Jerry   n9avy

 

Sent from Mail for Windows 10

 

From: Karl Heinz Kremer - K5KHK - PODXS 070 # 2645
Sent: Wednesday, July 17, 2019 9:03 PM
To: 070Club@groups.io
Subject: Re: [070Club] Today on 20m

 

It actually was FT8 in DXpedition (or fix and hound) mode  from 1A0C (Malta) - they are using 14.071 as their FT8 frequency: http://www.1a0c.com/band-plans/

Karl Heinz Kremer

PDF Acrobatics Without a Net 

PDF Software Development, Training and More... 


On Jul 17, 2019, at 6:11 PM, Jerry N9AVY <n9avy@...> wrote:

 

Wow,  got home and found 20m filthy with what appeared to be FT-8 signals on 14070.  Did someone forget to tell those guys that’s a PSK frequency ???

 

Well,  did work Matthew in GA, but thunderclouds were moving in and skies got really dark. Shut down the rig.

 

On another front, I approved a bunch of endorsements for KC3FL & W9SMR.  Way to go guys  !!!!

 

 

 

Jerry  n9avy

 

Sent from Mail for Windows 10

 

 


Re: Today on 20m

Karl Heinz Kremer - K5KHK - PODXS 070 # 2645
 

It actually was FT8 in DXpedition (or fix and hound) mode  from 1A0C (Malta) - they are using 14.071 as their FT8 frequency: http://www.1a0c.com/band-plans/

Karl Heinz Kremer
PDF Acrobatics Without a Net 
PDF Software Development, Training and More... 

On Jul 17, 2019, at 6:11 PM, Jerry N9AVY <n9avy@...> wrote:

 

Wow,  got home and found 20m filthy with what appeared to be FT-8 signals on 14070.  Did someone forget to tell those guys that’s a PSK frequency ???

 

Well,  did work Matthew in GA, but thunderclouds were moving in and skies got really dark. Shut down the rig.

 

On another front, I approved a bunch of endorsements for KC3FL & W9SMR.  Way to go guys  !!!!

 

 

 

Jerry  n9avy

 

Sent from Mail for Windows 10

 


Today on 20m

Jerry N9AVY
 

 

Wow,  got home and found 20m filthy with what appeared to be FT-8 signals on 14070.  Did someone forget to tell those guys that’s a PSK frequency ???

 

Well,  did work Matthew in GA, but thunderclouds were moving in and skies got really dark. Shut down the rig.

 

On another front, I approved a bunch of endorsements for KC3FL & W9SMR.  Way to go guys  !!!!

 

 

 

Jerry  n9avy

 

Sent from Mail for Windows 10

 

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