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VarAC EmComm discussion forum

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VarAC V13 AI Gateway

Each of us has his or her own opinions.  I’ll share mine at the risk of being “flamed”.  (Note:  I am an active member of Amateur Radio Emergency Service, but the discussion below is not an official ARES position, only my own.)


Bottom line:  I think the AI Gateway in Version 13 is a bad idea.


VarAC is becoming a good mode for EmComm.  In a “grid down” situation, where EmComm would likely be employed, VarAC has an advantage over Winlink in that VarAC allows a message sender to connect to a station which is known to be on the air (beaconing) rather than having to depend on a Winlink propagation forecast or resorting to hunt-and-try for a usable Winlink gateway.  ( Winlink propagation forecasts are useful when they can be updated via internet, but they rapidly become outdated and in a grid-down situation without Winlink VHF FM, the forecasts…


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irad d
irad d
Oct 30

Dear Mike,

Let me start with the bottom line — Ham radio and VarAC are hobbies, much like chess. If someone enjoys “doomsday practice” as a hobby, that’s perfectly fine. If another prefers playing chess with friends, that’s fine too. VarAC is not a business — and like any hobby, it doesn’t require a business plan.


Now, to your point:VarAC is not limited to 10 slots. You can QSY to any frequency you wish. You mentioned there’s no problem to solve, but I see it differently. Until now, there was no real way to browse the web via HF radio — and now there is. This opens up real EmComm use cases, such as accessing weather updates or news when completely off-grid. Most organized EmComm groups don’t use the VarAC CF anyway; they have their own designated frequencies.


I fully respect your opinion, but I simply don’t share it. VarAC was created first and foremost as a hobby, and only secondarily does it offer useful capabilities for EmComm. For example, I personally dislike packet radio — but I don’t consider it illegitimate. The same goes for RTTY. Different people enjoy different aspects of the hobby: some are drawn to RTTY, some to packet, some to chess, and some to AI.


And one last note: AI is here to stay. We all use it daily — every Google search already benefits from it. History has shown that opposing technological progress has never been an effective strategy.


I wish you many enjoyable hours with VarAC — and may you never truly need its EmComm capabilities.


Warm regards,

Irad

Edited

EmComm Checkin Req Button

We are an AuxComm/ARES group in Nassau County Florida and we've set up VarAC FM nodes across the entire county. Our mission is emergency comms without the use of repeaters, anything government and except for Email (Starlink and generators at 2 nodes), the internet.


We ran our first net as kind of a anything goes Broadcast check-in using a middle of the county node as a digipeater. It was a bit of a mess but proved the concept works and the coverage was where we wanted it to be.


My question is using EmComm mode with the Checkin Req button. Can we use a digipeater with this? I don't see anywhere to do this unless it uses the Beacon Digipeat Via field. It seems like a really neat tool but, if we can't get to the other side of the county, it wouldn't be of much use.


TNX,

Mike -…

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rottytoo
Oct 01

Answered my own question! Slick how it works!

VarAC Target Station Lists: MDC Digital EMCOMM Challenge, 3-6 July 2025

The VarAC HF and VarAC HF Target Station Lists for Subject Challenge are attached. You are welcome to participate and, hopefully, can become a regular monthly participant (see the ANNOUNCEMENT in this forum).

73, Bill N3XL, MDCWINLINK-1

Learn by doing.




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ANNOUNCEMENT: MDC Digital EMCOMM Challenge, 5-8 June 2024

** This announcement may be forwarded to anyone interested in getting on the ARRL Maryland-DC (MDC) Section Winlink message distribution list and participation in MDC Digital emergency communications (EMCOMM) training activities. Interested parties should send a Winlink message request to MDCWINLINK-1 and they will be added to the distribution list. The information that you will need to participate in monthly Check-ins and Challenges will be sent out via Winlink messages. Challenge Announcements will be sent approximately 2 weeks before the Challenge. **


** If VarAC or Fldigi is your mainstay and you wish not to use Winlink, please send your commercial email address to bill.n3xl@verizon.net and you will be added to the distribution list. The commercial email option is not open for Winlink users.


PURPOSE:

This exercise requires the use of photo resizing tools that are built into the Winlink (Task 1), VarAC (Task 2), and Fldigi (Task 3) programs.…


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