New VARA SAT v4.0.2 The new version of V-SAT , regains full compatibility with 'Winlink' whilst providing the enhancements ,of the latest VARA HF 4 release. BW 2300 Hz 'only', same as V4 HF Dynamic AF

Rick I , just noticed the P4 and V4 speeds , had , in effect reversed, where as the other modes , look to be similar , interesting would be comparison of OLIVIA and ROS-HF-4 modes P4 is used on HF out

Yes , Quite agree Andy , The vara modem started years before it broke the surface , in many variations, the fully odfm version was and remains radical , the mfsk front end to the HF version, signalled

Its unclear as to why the simulator results where so wrong and now so right , applying to just one mode, where as other's remain, apparently, unaffected ? What was identified as causing the discrepanc

Andy, Setting just 'psk' in the map , produces a large number of qso'a Spread over the hf bands .. 73 Graham G0nbd

Hi Sigi , The channel could be 2.9 k , the VTAC modem is 2.795 KHz but probably would not work, due to the circuit delays VSAT is based on the 2KHz b/w HF modem and supports the extended delay and pro

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Apparently it's 'listed in the beta version , not yet embodied in the current release. 73 Graham G0nbd

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Good question Andy, Googling vara qso , did bring back a few hits , one is a winlk p2p net , not really a qso as such , there is a IO vara group with ~ 500 members , posting there might help , look to

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Interesting Andy Any of the VARA modes will run over FM link , during testing , with local station on 6 metres , who , was suffering from solar panel qrm , during the day, 'we found that switching to

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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

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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

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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

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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 , al

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 .. 73-G Pr

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 s

Ros suggests contact , by email :- Rafael Dinitz: rafael AT riseup.net 73-Graham

#ros #varim #RMSexpress #VARA #WinLink

Still going strong after 10 years -) Good DX condx on 7 at the moment TA open , SV8RV still proving permanent monitor , RX3DHR Moscow .. good dx opportunity 73-Graham on line data base > http://spots.

Thanks Andy Looks like it can call the ptt, That means , with vara calling the PTT , all that's needed, in this case , is a $5 usb sound card just a little off beat with the split access , across the

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Thanks Andy That means , it needed a sound card based interface to handle the tx/rx audio , via mic socket - ok PTT ... is there VOX ..or has to be hard wired ? Some confusion round the cat options ,

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Vara repeater , notes Entering a call in to the set up box activates the facility - no separate on/off Any ham like call may be used as the digi repeater call , as long as the format is the same ie co

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