Date   

Re: Older fast-scan video software?

M0PWX
 

May be a newer iteration of the program you are thinking ofūüėä

 

Glad to be able to point you along the  way, hopefully in the right direction, and hopefully not down a blind alley or rabbit hole

 

73

 

Peter

M0PWX

 

M0PWX Grabber Page (qsl.net)

 

From: Facility 406
Sent: 27 November 2022 23:26
To: main@digitalradio.groups.io
Subject: Re: [digital-mode-radio] Older fast-scan video software?

 

On 11/27/2022 08:36, M0PWX wrote:
> Could it be this ? NBTV it was used in one of the Canadian high power
> experiments a month or so back
> https://ghostsintheairglow.space/how-tune

Close, real close, may be related.

The one I'm thinking of may go back to Windows 3.11, might be as new as
Windows 98.

There was a box for settings, and a gray box similar to what is in your
screen shot, but it was mostly transparent, not a dialog box, and
whatever was in the box was translated to a 1200Hz bandwidth audio
signal that came out of the computer speakers in real-time as the box
was moved around the screen.  The image the box was drug over could be
static, or moving.  Controls were basic, not much more than TX/RX.

Your screenshot mentions NBTV, so I may have been looking online for the
wrong software.

Searching for NBTV brought up this link:

http://www.k3pgp.org/software.htm

With the callsign IZ8BLY, the Italian callsign I was thinking of, I was
a letter off!  I'll send the fellow a message asking about the software
I think he created in the 90's.

Thank You for your post, it has provided me with quite a bit of information.

I also came across this page, with a lot of older software:

http://www.hffax.de/

Kurt









 


Re: Older fast-scan video software?

Facility 406
 

On 11/27/2022 08:36, M0PWX wrote:
Could it be this ? NBTV it was used in one of the Canadian high power experiments a month or so back
https://ghostsintheairglow.space/how-tune
Close, real close, may be related.

The one I'm thinking of may go back to Windows 3.11, might be as new as Windows 98.

There was a box for settings, and a gray box similar to what is in your screen shot, but it was mostly transparent, not a dialog box, and whatever was in the box was translated to a 1200Hz bandwidth audio signal that came out of the computer speakers in real-time as the box was moved around the screen. The image the box was drug over could be static, or moving. Controls were basic, not much more than TX/RX.

Your screenshot mentions NBTV, so I may have been looking online for the wrong software.

Searching for NBTV brought up this link:

http://www.k3pgp.org/software.htm

With the callsign IZ8BLY, the Italian callsign I was thinking of, I was a letter off! I'll send the fellow a message asking about the software I think he created in the 90's.

Thank You for your post, it has provided me with quite a bit of information.

I also came across this page, with a lot of older software:

http://www.hffax.de/

Kurt


Re: Older fast-scan video software?

M0PWX
 

Could it be this ? NBTV it was used in one of the Canadian high power experiments a month or so back

 

https://ghostsintheairglow.space/how-tune

 

 

Peter

M0PWX

 

M0PWX Grabber Page (qsl.net)

 

From: Facility 406
Sent: 27 November 2022 02:02
To: main@digitalradio.groups.io
Subject: [digital-mode-radio] Older fast-scan video software?

 

I've got the worst memory for this, and the software could be on any one
of a few dead computers....

What was the live streaming video software being played with about 20-25
years ago on Long Wave?

It wasn't fancy, just a small box that could be hovered over an image or
webcam display, and send live video at 1200Hz audio bandwidth.

All I recall is it was produced by a fellow in Italy.

General searches by description isn't bringing anything up.

Ideas?

Kurt




 


Older fast-scan video software?

Facility 406
 

I've got the worst memory for this, and the software could be on any one of a few dead computers....

What was the live streaming video software being played with about 20-25 years ago on Long Wave?

It wasn't fancy, just a small box that could be hovered over an image or webcam display, and send live video at 1200Hz audio bandwidth.

All I recall is it was produced by a fellow in Italy.

General searches by description isn't bringing anything up.

Ideas?

Kurt


Re: Canyon Communications

Graham
 

Hi -

I think you will  find the  satellite  version of the VARA modem  VSAT, will  function well  over the 
vhf/ssb channel

VSAT  has enhanced  netting and AFC functions, intended to  facilitate  link establishment over the  AO-100 sat
its primarily  the  VARA-HF modem , limited the  MFSK for non registered , the ofdm levels are available to gateways 

With its intrinsically low symbol rates, the  modem is robust in disturbed paths 

Likely 5 MHz would provide suitable linkage , Vara HF or VSAT will  function over the nvis path , due to compatible symbol rate 

73-Graham
g0nbd 


Re: Canyon Communications

Bruce
 

Hi Greg.
In San Diego CA, we to have a lot of Canyons and valleys. Red Cross DST is always looking for ways to pass disaster traffic, when normal means are not available. Red Cross did a test where we sent out a solar powered station "Go-Kit" into the desert about 90 miles from the SD headquarters, where  there was a 11 element horizontally polarized beam. The desert station had a small "Arrow" beam.   We were running FT897 with Pactor modems at both ends of the path. We used "Knife Edge Refraction" to scatter 2 meter SSB signals over the mountain range. We also tried 7 MHz HF but found a better path on 2 meter SSB. We used the RIT to exactly tune the radio's to the correct freq, with normal voice pitch, then switched to digital. After the SCS Pactor modems "Locked ON' They gave good reliable copy and we sent forms and map attachments. back and forth, - even with weak signals. With 2 meter SSB we could also use Pactor 4.
73 Bruce - WA6DNT@... -  Red Cross DST - IEEE/Move ! & 2  -   SHARES HF

On 11/22/2022 10:01 AM, Greg Ella wrote:

Hi,
I live in northern Colorado, and I am working on reliable communications
in and out of our canyons.
 
I've tried NVIS SSB Voice, with good results.  I also want to try
some sound card digital modes shooting down the canyon, on
6 Meters and 2 Meters.
 
There will be a lot of multipath with this technique, and a lot of signal loss,
since our canyons tend to have a lot of turns in them.
 
I'm looking for suggestions on modes to try.  I run Linux, so I'd prefer a
mode that is in FLDigi.  Thor is looking interesting right now.,
 
Greg Ella
N0EMP
 



April 19th 1999 : My first ever PSK31 QSO

Andrew OBrien
 

I was looking through some old logs , trying to determine when my first ever PSK31 QSO was .   Turns out my log records the QSO as "RTTY" .  I will have to see if I can figure out other QSO that were logged as RTTY instead of the correct "PSK31".  I think my complete log is from ADIF files, probably before PSK31 had an ADIF assigned.  Anyway, I found the text of my first PSK31 QSO, see below


Andy K3UK

When was your first ever PSK31 QSO ? Mine was April 19th ,
1999 ... see below.


Andy, now K3UK.

----------------------------------------------


fg5gi de kb2eoq kb2eoq kb2eoq

KB2EOQ DE FG5GI RS 58 NAME ALAIN K

hello Alain, wow this works ! my first psk31 qso bk to u.

Congratulations, sure you send a bottle of champagne !
my adresse in the call book k

Champagne to Frenchman, never ! maybe some bourbon ! Name is Andy
an
d the qth is Fredonia NY, you are 59+++++ bk


i wait a bottle ! your mod is not stable in phase ? have you good
schelded wire for
Tx ? k

(KB2EOQ) just using old cable, not good shield, will get new cable
tomorrow.
TNx for letting me know. will say 73 and get a better signal
tomorrow.
73 de kb2eoq sk
yes sure that will be better , remember the bottle
SALUT ANDY bonsoir sk
73 and I'll send bottle. Bonsoir .
kb2eoq


--
Andy K3UK


new SW Radiogram program available

 

Hello to all the digital folks out there.
 
A new program for the Shortwave Radiogram broadcasts has now been posted on the SW Radiogram website.
 
If you're new to decoding digital, this is a pretty nice way to get your feet wet. You can use your desktop or laptop, or you can use an Android device such as a smartphone or tablet. You can find links to the SW Radiogram website, software for decoding, and wiki articles with extensive details and help at: http://www.udxf.nl/events.html.  
 
If you'd like to see a list of web receivers (which are often reported as being used), receiver, transceiver and SDR applications and more, take a look at the SW Radiogram gateway at https://wiki.radioreference.com/index.php/Shortwave_Radiogram_Gateway
 
Help is also available on Facebook and Twitter. The SW Radiogram website has the links. 
 
Radio Northern Europe International also uses digital modes during its broadcasts. See https://rnei.org/ for more information. 
 
KBC Radio in the Netherlands also uses digital modes in their broadcasts.  They usually announce the frequency, time and modes they are going to use on their Facebook page https://www.facebook.com/TheMightyKbc
   
Here's hoping for good propagation 


Re: Canyon Communications

Walter Underwood
 

I believe that MARS uses MT63, long interleave. There are a three bandwidth options. It is very robust. I would start with that.


wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

On Nov 22, 2022, at 10:01 AM, Greg Ella <gregella53@...> wrote:

Hi,
I live in northern Colorado, and I am working on reliable communications
in and out of our canyons.
 
I've tried NVIS SSB Voice, with good results.  I also want to try
some sound card digital modes shooting down the canyon, on
6 Meters and 2 Meters.
 
There will be a lot of multipath with this technique, and a lot of signal loss,
since our canyons tend to have a lot of turns in them.
 
I'm looking for suggestions on modes to try.  I run Linux, so I'd prefer a
mode that is in FLDigi.  Thor is looking interesting right now.,
 
Greg Ella
N0EMP
 




Canyon Communications

Greg Ella
 

Hi,
I live in northern Colorado, and I am working on reliable communications
in and out of our canyons.
 
I've tried NVIS SSB Voice, with good results.  I also want to try
some sound card digital modes shooting down the canyon, on
6 Meters and 2 Meters.
 
There will be a lot of multipath with this technique, and a lot of signal loss,
since our canyons tend to have a lot of turns in them.
 
I'm looking for suggestions on modes to try.  I run Linux, so I'd prefer a
mode that is in FLDigi.  Thor is looking interesting right now.,
 
Greg Ella
N0EMP
 



new SW Radiogram program available

 

Hello to all the digital folks out there.
 
A new program for the Shortwave Radiogram broadcasts has now been posted on the SW Radiogram website.
 
If you're new to decoding digital, this is a pretty nice way to get your feet wet. You can use your desktop or laptop, or you can use an Android device such as a smartphone or tablet. You can find links to the SW Radiogram website, software for decoding, and wiki articles with extensive details and help at: http://www.udxf.nl/events.html.  
 
If you'd like to see a list of web receivers (which are often reported as being used), receiver, transceiver and SDR applications and more, take a look at the SW Radiogram gateway at https://wiki.radioreference.com/index.php/Shortwave_Radiogram_Gateway
 
Help is also available on Facebook and Twitter. The SW Radiogram website has the links. 
 
Radio Northern Europe International also uses digital modes during its broadcasts. See https://rnei.org/ for more information. 
 
KBC Radio in the Netherlands also uses digital modes in their broadcasts.  They usually announce the frequency, time and modes they are going to use on their Facebook page https://www.facebook.com/TheMightyKbc
   
Here's hoping for good propagation 


Re: Digital mode specifics?

Andrew OBrien
 


several members of this group used to use QPSK 31 back in the day when BPSK31 was first introduced by Peter G3PLX .  It was considered my robust than
plain BPSK31 , although a bit tricky to tune in those days. The signal in your YouTube video sounded a bit like the various multi carrier PSK modes used by NBEMS folks in Fldigi. Maybe a 500 QPSK .  However there seemed to be two different tones in your signal. 
Andy K3UK


FLRig 857d VFOa and VFOb not working correctly #Software

Patrick
 

I have a Yeasu 857d that is still unable to properly switch between VFOa and VFOb either with the specific buttons or the A/B button.
The FLRig application always reports VFOa though the radio could be on one or the other. Clicking VFOb will light up the indicator in the application for a moment but it always goes back to a.
Clicking either VFOa, VFOb or A/B does toggle the radio though erotically, meaning it may switch but it will likely switch back to whatever the radio was on.


new SW Radiogram program available

 

Hello to all the digital folks out there.
 
A new program for the Shortwave Radiogram broadcasts has now been posted on the SW Radiogram website.
 
If you're new to decoding digital, this is a pretty nice way to get your feet wet. You can use your desktop or laptop, or you can use an Android device such as a smartphone or tablet. You can find links to the SW Radiogram website, software for decoding, and wiki articles with extensive details and help at: http://www.udxf.nl/events.html.  
 
If you'd like to see a list of web receivers (which are often reported as being used), receiver, transceiver and SDR applications and more,take a look at the SW Radiogram gateway at https://wiki.radioreference.com/index.php/Shortwave_Radiogram_Gateway
 
Help is also available on Facebook and Twitter. The SW Radiogram website has the links. 
 
Radio Northern Europe International also uses digital modes during its broadcasts. See https://rnei.org/ for more information. 
 
KBC Radio in the Netherlands also uses digital modes in their broadcasts.  They usually announce the frequency, time and modes they are going to use on their Facebook page https://www.facebook.com/TheMightyKbc
   
Here's hoping for good propagation 


Digital mode specifics?

Facility 406
 

Years ago I used to listen to a digital signal above the AM broadcast band.

In the late 90's, with the help of a fellow at a naval base, the signal was identified as a DGPS correction signal transmitted by Cochrane Technologies in the US gulf. I verified frequencies, licenses, locations, et cetera, but unfortunately, Cochrane is long gone, and I hadn't thought to ask them specifics about their signal years ago.

Earlier this year, I described the signal and frequencies, asked around, and a fellow had made a recording of it. At the time, he didn't know what it was, but I was able to ID it for him:

https://www.youtube.com/watch?v=82GSv3y-Ry0

Doing some research, I was able to find out the mode is QPSK. An example can be heard on this page:

https://www.sigidwiki.com/wiki/DGPS

And a very similar sounding signal, here:

https://www.sigidwiki.com/wiki/Iranian_Navy_QPSK_Modem

What I'm trying to figure out, is precisely what kind of "QPSK" signal the Cochrane signal, and some of the examples, are.

A search for QPSK signals brings up all sorts of things labeled QPSK, many sounding nothing like each other. I even have a few amateur radio programs with "QPSK" modes, which also sounds entirely different.

Can anyone ID the specific QPSK signal type (Baud, shift, tones, whatever) in the Cochrane recording, the DGPS QPSK audio example, or the Iranian Navy example, as those three seem to match? Since it was used for DGPS, it must be incredibly common, and easy to generate, and decode, but I find no references. What is the QPSK mode with the tone, then data, tone, then data...? A bonus would be a program that generates the signal, then I could really study it.

Any ideas?

Kurt


[Announcement] FreeDV Activity Day - November 5-6, 2022

Mark Thompson
 


-----Original Message-----
From: Mooneer Salem <mooneer@...>
To: digitalvoice@...; freetel-codec2@...; ham-radio-tech-notes@groups.io
Sent: Thu, Oct 6, 2022 2:20 am
Subject: [Freetel-codec2] [Announcement] FreeDV Activity Day - November 5-6, 2022

Hi all,

We'll be doing another FreeDV Activity Day on the weekend of November 5-6, 2022! This event will bring together people interested in HF digital voice on the air for conversation and fun. Contacts usingthe official applicationas well as the SM1000 handheld microphone are welcome.

(Note: this is different than previous Activity Days in that you have the entire weekend, not just a 24 hour period. This may continue for future Activity Days based on how the upcoming one goes.) 

Event time: 12AM Pacific time (0700Z) on November 5 to 11:59PM (0759Z) on November 6 (49 hours). Note: Daylight Saving Time ends in the US during Activity Day weekend.

Suggested frequencies:
80 meters: 3.625, 3.643 or 3.693 MHz
40 meters: 7.177 MHz
20 meters: 14.236 MHz
17 meters: 18.118 MHz
15 meters: 21.313 MHz
12 meters: 24.933 MHz
10 meters: 28.330 or 28.720 MHz

(Note that LSB/DIGL is used below 10MHz as per current convention for voice modes, USB/DIGU otherwise.)

As this isn't a contest, there's no pressure to make contacts or send logs, but you can always confirm QSOs via the usual means if you'd like (LoTW, eQSL, QRZ, etc.) Enabling PSK Reporter in the FreeDV application and joining theQSO Finderare recommended, however, so others can see that you're on the air and hearing them (for instance, here'sthe current map of listeners). :D

Feel free to spread this far and wide among your local ham friends and groups! :) Let me know if you have any questions about the event and definitely post here if you have issues getting the application working prior to the event.

Thanks,

-Mooneer K6AQ
_______________________________________________


new SW Radiogram program available

 

Hello to all the digital folks out there.
 
A new program for the Shortwave Radiogram broadcasts has now been posted on the SW Radiogram website.
 
If you're new to decoding digital, this is a pretty nice way to get your feet wet. You can use your desktop or laptop, or you can use an Android device such as a smartphone or tablet. You can find links to the SW Radiogram website, software for decoding, and wiki articles with extensive details and help at: http://www.udxf.nl/events.html.  
 
If you'd like to see a list of web receivers (which are often reported as being used), receiver, transceiver and SDR applications and more, take a look at the SW Radiogram gateway at https://wiki.radioreference.com/index.php/Shortwave_Radiogram_Gateway
 
Help is also available on Facebook and Twitter. The SW Radiogram website has the links. 
 
Radio Northern Europe International also uses digital modes during its broadcasts. See https://rnei.org/ for more information. 
 
KBC Radio in the Netherlands also uses digital modes in their broadcasts.  They usually announce the frequency, time and modes they are going to use on their Facebook page https://www.facebook.com/TheMightyKbc
   
Here's hoping for good propagation 


Re: Like-New Xiegu X6100 For Sale

Tony
 

All:

Here's a picture of the X6100. More photos upon request. 

Tony -K2MO

On 10/22/2022 3:29 PM, Tony via groups.io wrote:

All:

Need to downsize so I'm selling my Xiegu X6100 HF transceiver. It was purchased new a few months ago and it's in like-new condition. It came with the latest firmware and works perfectly. Has built-in ATU and is easy to run digital with one USB cable for CAT and audio. They sell for $640.00 + tax new. Comes with factory box and accessories.

Asking $490.

Tony -K2MO  



Like-New Xiegu X6100 For Sale

Tony
 

All:

Need to downsize so I'm selling my Xiegu X6100 HF transceiver. It was purchased new a few months ago and it's in like-new condition. It came with the latest firmware and works perfectly. Has built-in ATU and is easy to run digital with one USB cable for CAT and audio. They sell for $640.00 + tax new. Comes with factory box and accessories.

Asking $490.

Tony -K2MO  


new SW Radiogram program available

 

Hello to all the digital folks out there.
 
A new program for the Shortwave Radiogram broadcasts has now been posted on the SW Radiogram website.  
 
If you're new to decoding digital, this is a pretty nice way to get your feet wet. You can use your desktop or laptop, or you can use an Android device such as a smartphone or tablet. You can find links to the SW Radiogram website, software for decoding, and wiki articles with extensive details and help at: http://www.udxf.nl/events.html.  
 
If you'd like to see a list of web receivers (which are often reported as being used), receiver, transceiver and SDR applications and more, take a look at the SW Radiogram gateway at https://wiki.radioreference.com/index.php/Shortwave_Radiogram_Gateway
 
Help is also available on Facebook and Twitter. The SW Radiogram website has the links. 
 
Radio Northern Europe International has announced its new schedule for program 34.  
See https://rnei.org/2022/09/27/radio-northern-europe-international-show-34-announcement/ 
 
KBC Radio in the Netherlands also uses digital modes in their broadcasts.  They usually announce the frequency, time and modes they are going to use on their Facebook page https://www.facebook.com/TheMightyKbc
 
Here's hoping for good propagation 

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