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All: Noticed at least one DX station on 30M VARA APRS today (see attached). There used to be quite a few Europeans on Robust Packet APRS, but those numbers have dwindled to a handful of stations and a few I-gates. Like VARA, it was far superior to standard HF packet, but one needed to purchase an expensive SCS modem to get on the air at the time, which is probably the reasons why it didn't take off. I've tested VARA using an HF path simulator and it appears to be even more robust than RP — there's certainly a night and day difference in HF channel performance when compared to standard HF packet, which is clearly noticeable when comparing the two on-air. Should be interesting to see if VARA APRS takes off. Tony -K2MO

On 12/23/2024 10:14 AM, Rick - KJ7ROX via groups.io wrote: I read your post and then tried to access the pinpoint aprs website and it seems to be down. (Forbidden message). Am I missing something? Here is the url I am attempting: https://www.pinpointaprs.com/ 73... Rick KJ7ROX _._,_._,_ Hmm The PinPoint website seems to be missing in action. I've put a copy of the most recent PinPoint on MY web site at at: <http://wa8lmf.net/hamdisks/Pinpoint_v2.1_build_240324.msi> Stephen H. Smith wa8lmf (at) aol.com Skype: WA8LMF EchoLink: Node # 14400 [Think bottom of the 2-meter band] Home Page: http://wa8lmf.net 30 Meter APRS-over VARA Frequency Change Coming 1 Jan 2025. Details Here: <http://WA8LMF.net/VARA/NewFrequency.htm - APRS over VARA -- <http://wa8lmf.net/VARA/APRSoverVARA.> "Studio B" Ham Shack on Wheels <http://WA8LMF.net/Aliner>

Experimenting with a new map layout -- comments and feedback requested. Screen capture of 30 meters APRS-over-VARA activity on the new 10.148.200 Mhz USB channel as of 3:16 PM Eastern US Time on 22 Dec 2024. Note that late at night and in the early morning hours, I am copying G4HYG from the UK on this channel nearly every day -- that's why I have expanded the map to stretch across the Atlantic to cover western Europe. Stephen H. Smith wa8lmf (at) aol.com Skype: WA8LMF EchoLink: Node # 14400 [Think bottom of the 2-meter band] Home Page: http://wa8lmf.net 30 Meter APRS-over VARA Frequency Change Coming 1 Jan 2025. Details Here: <http://WA8LMF.net/VARA/NewFrequency.htm - APRS over VARA -- <http://wa8lmf.net/VARA/APRSoverVARA.> "Studio B" Ham Shack on Wheels <http://WA8LMF.net/Aliner> -

The migration of 30 meters APRS-over-VARA activity to the new channel of 10.148.20 MHz USB "dial" frequency seems to be taking off -- - even before the announced change-over on New Years eve. As of 1 PM Eastern Standard time 22 Dec 2024, this is what I am seeing on my UIview test receiver/igate in central Michigan, USA. This display and new frequency will replace the current http://WA8LMF.net/map 10.147.600 Mhz main APRS-over-VARA UIview igate/mapping-webserver display at midnight UTC on New Years Eve. (The test setup on the new channel is currently also doing igate duty - the stations on the map below can be seen on findu.com, APRS.fi, etc.) Stephen H. Smith wa8lmf (at) aol.com Skype: WA8LMF EchoLink: Node # 14400 [Think bottom of the 2-meter band] Home Page: http://wa8lmf.net 30 Meter APRS-over VARA Frequency Change Coming 1 Jan 2025. Details Here: <http://WA8LMF.net/VARA/NewFrequency.htm> - APRS over VARA -- <http://wa8lmf.net/VARA/APRSoverVARA.> "Studio B" Ham Shack on Wheels <http://WA8LMF.net/Aliner> -

A group of us ran a test yesterday with Winlink VARA-FM on 144.950. The path was 14km with a single distinct peak in-between 145m above the northern site and 60m above the southern site. Initially we could send a 90kbyte file P2P between the two locations in about 2 minutes running between level 7 and 9 in FM wide. North was using a commercial J-pole about 8 feet off the ground, while south was using an Arrow 3-el Yagi on a pole (I don't know the height but was it was elevated). We recalibrated before almost every test. A third site (west) was 9km and 13km from north and south respectively. Calibrations yielded SNRs of 23 to 27 dB in all cases. North and south could initially exchange files at good speed as stated above. We then tried north to west and found that west could not send to north while north could send to west at good speeds. The former would start at level 9 and end up at level 1, with no data transferred at the higher levels. The latter would send the same file about 3 minutes. We then elevated north's antenna to 8m, and tested again. It started to rain, which may be significant. We found that south to north did the same thing as the west to north test, starting at level 9 and dropping to level 1, and sometimes disconnecting. North could send to south without issue. We changed back to the original antenna configuration with no improvement. The elevated antenna showed the best signal strength and SNR in calibration. South tried sending to west and had the same problem. While with the variable terrain and probably knife-edge diffraction, we're surprised at the extremely variable results without corresponding variation in signal SNR, and also the extreme difference between forward and reverse directions. We're going to review and set up another test, but we would appreciate any suggestions, comments, or similar experiences from others that might account for this? 73, Chris VE3NRT