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Re: New VARA HF v3.0.2
#VARA
Andrew O'Brien
I finally got around to installing VARA Chat today. I recall Jose's previous message stating VARA CHAT is good for emcomm use and not for CQ Hello Bye QSOs. However I had a QSO with someone via Olivia the other day saying he uses VARA Chat on HF quite a bit. What frequencies are people using it on ?
Andy K3UK
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Re: New VARA HF released 4-3-0
#VARA
Graham
HNY Andy
Yes , just the same as the other vara HF modes , the individual carrier rates are 42 baud , 300 never really made much sense, other than b/w linked to speed / rate , far to high to be robust on HF ..but yes, crazy amounts of data in a speech channel , nearly as quick as the old 9600 on UHF Seems to be being driven by the emergency & ham<>mil users ..? 73 -Graham G0NBD
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Re: New VARA HF released 4-3-0
#VARA
Graham
HNY Sigi
Well , AO-100 has wide and narrow band areas, there are already VARA SAT , which has extended AFC and some link delay measuring modules as well , will also work with any steam powered ssb set ups that need very long tx/rx times , that is more suited to the sat link, as was designed specially for the sat , but , no reason why the high speed varafm-96 could not be used in the wide band section ? I would think the power density of a wide band FM signal is similar to the TV broadcasts ? and zero netting problems , being fm ? 73 -Graham g0nbd Ive never seen the AO-100 transponders full , there is a ROS-HF mode qso running, with prog set to 2 meters no different to the on-air modem, just the highest qrg coded these days .. and with ROS -HF more than one qso can be running at the same time in the same channel
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Re: New VARA HF released 4-3-0
#VARA
Andrew O'Brien
does this keep us in the USA "legal" in terms of FCC imposed baud rates. I can't remember those pesky rules ANdy K3UK
On Sat, Jan 2, 2021 at 12:16 PM Siegfried Jackstien <siegfried.jackstien@...> wrote:
--
Andy
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Re: New VARA HF released 4-3-0
#VARA
Siegfried Jackstien
hmm .. its a tad bit wide to be used on qo100 ;-) ... ok ok its
vara HF ... not vara shf hi hi 100 to 2900 ... sure can you set that in your sdr setup (example a pluto) ... but we should not use more as 2.7 there ... hmmm on the other hand there are stations splattering as wide as a barn door so as long as we keep it linear and not splattering then i guess nobody would moan about using 2.9kc ... wow ... not bad ... 8.5k in a 2.9 kc wide channel ... greetz sigi dg9bfc Am 02.01.2021 um 14:54 schrieb Graham:
New VARA HF released 4-3-0
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New VARA HF released 4-3-0
#VARA
Graham
New VARA HF released 4-3-0
New for 2021 , additional 2750 Hz bandwidth mode added to the VARA family utilising available bandwidth, maximum rate is increased to 8489 Bps in 2750 Hz centered on 1500 Hz mid point tone. The Modem architecture , being optimised to maximise the available bandwidth with new carrier number's / bps rate combinations, all the facilities of the VARA system are maintained , monitor , chat module, bps , and winlink connectivity. Note the level numbers are, then, not directly related Compatibility with existing installations is maintained , by automatic mode detection , as per existing 2300 <>500 mode switching . Rig compatibility , ic7300 may be directly set to the required b/w, where as the ic7100 , requires the use of the SSB voice non standard bandwidth settings of 100 Hz <> 2900 Hz , further details are contained in the pdf documentation 73 -Graham g0nbd
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new SW Radiogram program
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.
Here's hoping for good propagation and Happy New Year to all
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video of K2MO sending images via VARA mode
Andrew OBrien
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Re: How to install VARA HF on Kubuntu on WINE - Need help !
#ros
#varim
#RMSexpress
#VARA
#WinLink
BruceN
Thanks Serge,
It does help. BruceN / K4TQL
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Re: How to install VARA HF on Kubuntu on WINE - Need help !
#ros
#varim
#RMSexpress
#VARA
#WinLink
Serge Robitaille
Bruce,
I have installed WINE following these instructions : https://wiki.winehq.org/Ubuntu The I have replaced the pdh.dll following the instructions in the previous url discussed. Vara launched without error afterward BUT I launch it first before launching WinlinkExpress. So in my case, its a 2 step process. Hope this help ? Serge VA2SR/ZL
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Re: How to install VARA HF on Kubuntu on WINE - Need help !
#ros
#varim
#RMSexpress
#VARA
#WinLink
BruceN
On Tue, Dec 22, 2020 at 09:34 PM, Serge Robitaille wrote:
https://www.bountysource.com/issues/92142283-idea-for-installing-old-pdh-dll-for-nt-4-0Serge, Was that all that you needed to do? Were there other instructions to go along with what you cited? BruceN / K4TQL
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Re: How to install VARA HF on Kubuntu on WINE - Need help !
#ros
#varim
#RMSexpress
#VARA
#WinLink
Serge Robitaille
Got it working on a 32bits architecture with Rafael's help.
VARA 4.0.6 requires the following dll modification in System32 (https://www.bountysource.com/issues/92142283-idea-for-installing-old-pdh-dll-for-nt-4-0) Ros is in the loop...maybe the both of them will address this issue in the next version of Vara. Hope this help
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Radio Northern Europe International Christmas special
Radio Northern Europe International has announced its Christmas special (which includes a digital portion), which starts broadcasting on the 23rd.
See https://rnei.org/2020/12/21/radio-northern-europe-internationals-christmas-special-announcement/ for more information.
Per Roger on the World of Radio reflector regarding the use of PSK500.....
Sending PSK as AM modulation is less of a problem, but demodulation in AM should be avoided! I recommend separate demodulation in USB and LSB, ideally from an IQ recording.In the case of the AM sum signal (left+right), there is often a destructive phase overlap and decoding problems.
Software as mentioned in the article:
Easypal: http://www.g0hwc.com/sstv_drm_news.html
WinDRM: https://www.sigidwiki.com/wiki/WinDRM
7-Zip: https://www.7-zip.org/
Here's hoping for good propagation
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Re: Windows 10 "listen to this device" option for VAC uses ?
Yes good point John With this ''not selected'' it's not possible to route audio from a app running on say sdr & fire fox to data app , vara , fldigi etc using the internal audio routing Selecting , allows the windows mixer to be selected as audio in Then there is a listen to this device option, which if activated caused [on my] win10 set up something like a ' wem copicat' effect , loop round delayed audio feed back ..all for free .. Applicable to System audio , as opposed to device audio -? 73- Graham
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Re: Windows 10 "listen to this device" option for VAC uses ?
John G8BPQ
Windows often has a "Stereo Mix" device to receive what you are
sending. On a couple of machines it disapeared with an update, but
these ideas fixed it (One on each machine)
toggle quoted messageShow quoted text
https://thegeekpage.com/stereo-mix/ 73, John G8BPQ
On 22/12/2020 17:08, Andrew OBrien
wrote:
In the old days, we used to choose a "listen to this device" option in the Windows "Recording" tab when wanting to hear the audio that VAC was piping to our digital mode software. I looked again for this option in Windows 10 and do not see it. Any suggestions?
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Re: Windows 10 "listen to this device" option for VAC uses ?
Graham
Andy - May or may not be the same , this was the resolve of the missing ''one of the '' audio usb links from the ic7100 ..full final,post in 7100 group ..may be the same for the audio cable .. The audio codec from the 7100 lists as microphone , whereas 'all' the apps where authorised to Use ‘the’ pc microphone , There is a separate , more detailed authorisation field , in the ''Manage sound devices'' I suspect , the default setting was / is Disable .. the 7100 was set to disable
Setting to Enable , codec is now listed as microphone , and showing in the device input lists
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Re: Windows 10 "listen to this device" option for VAC uses ?
Graham
Andy
There was something odd round win10 and the ic7100 missing one of the usb audio feeds , needing the device in windows to be 'identified' or similar .. there are two or three layers to the audio set up .. just trying to pick up the posts , either rsgb-tech or the 7100 group ..icom uk had no idea at the time , probably post win-upgrade 73-Graham
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Re: Windows 10 "listen to this device" option for VAC uses ?
Ralph Mowery
Use two computers and pipe the sound from one to the other. You can try this program. Seems to work fair for me sometimes.
On Tuesday, December 22, 2020, 12:08:51 PM EST, Andrew OBrien <k3ukandy@...> wrote:
In the old days, we used to choose a "listen to this device" option in the Windows "Recording" tab when wanting to hear the audio that VAC was piping to our digital mode software. I looked again for this option in Windows 10 and do not see it. Any suggestions? Andy K3UK _._,_._,_ ._,_._,_
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Windows 10 "listen to this device" option for VAC uses ?
Andrew OBrien
In the old days, we used to choose a "listen to this device" option in the Windows "Recording" tab when wanting to hear the audio that VAC was piping to our digital mode software. I looked again for this option in Windows 10 and do not see it. Any suggestions?
Andy K3UK
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Re: How to install VARA HF on Kubuntu on WINE - Need help !
#ros
#varim
#RMSexpress
#VARA
#WinLink
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