As a 501c3 non-profit, KARS members provide assistance to Kendall County EMS, Boerne Police and Kendall County Sheriff's Office along with other organizations local to Kendall County.

Bigfoot Special Event Oct 15-20th

The Radio Club of Tacoma ran a Bigfoot special event in conjunction with National Sasquatch Awareness Day. The special event will be on the air from October 15, 2025, at 0000 Zulu (UTC) through October 21, 2025, at 2359 Zulu. Check out their website for details.

Belton HamExpo Oct 3rd-4th

Several members were spotted at the Temple Amateur Radio Club (TARC) HamExpo Oct 3rd & 4th in Belton, TX just south of Waco. The floor was packed with vendors and was attended a lot better than this past Spring.

KARS POTA Activations

September 10-12, Jesse (W1BBT) and Jerry (N5SGM) had their first DX POTA activation at US-3020 Inks Lake State Park. Jesse was able to make the top 5 activator list with 303 contacts, and Jerry was on fire with CW. On the way back home, they stoped as US-3034 Longhorn Cavern State Park for a quick activation. Stay tuned for the next park these two will be headed to. Pictures

Flood Alert System

On Sept 2, 2025, Mark Chapman KJ5CBL, was invited by the Austin Police Department Emergency Management Office to attend a demonstration of a new early warning device that is designed to save lives during a catastrophic flooding event. Much like that of July 4, 2025 in Kerr, Hunt and Kendall counties.

The demonstration was held at Camp La Junta and Camp Vista in Hunt County. Two of these devices were donated by a company from Austin, River Sentry. The company is an upstart in response to the devastating floods we recently experienced. The technology behind these devices utilizes Meshtastic devices to transmit information using LoRA radios to other devices in the area as well as web based applications which would be located out of the flood area.

The devices activate within 7 seconds of a potential flood condition and activate a 130 decibel siren and warning light as long as the condition exists. The units are powered by a lithium battery that will continually alert for approximately 45 minutes. (See attached video) (warning loud!)

River Sentry donated two of these devices to Camp La Junta and Camp Vista on September 3, 2025. In an effort to help these facilities comply with the new state rules regarding emergency flood notification at camps such as these. Current prices are approximately $4500 per unit, depending on options.

These units will also be available to individual land owners who might be interested in purchasing one.

POTA Activation - August 17, 2025

Jesse (W1BBT) and Jerry (N5SGM) did a POTA (Parks on the Air) activation at the Old Tunnel State Park. Jesse made 60 FT8 contacts, and Jerry made his FIRST 3 CW POTA contacts. He rounded out the activation with 16 more FT8 contacts.

Jerry's (N5SGM) first POTA activation

Guadalupe River Flooding EOC Support - July 5-11, 2025

KARS would like to thank all of the volunteers that have supported our mission in providing valuable communications between the search and rescue teams and the EOC. We have made an impression on the Kendall County officials, clearly demonstrating our value add to their Emergency Operation mission as a strategic tool. KARS looks forward to supporting Kendall County in any of their future needs.

Click the images below to see them in full resolution.

Guadalupe River at flood stage

River Road

ARRL Field Day - June 27-29, 2025

ARRL Field Day was a big success! Thanks to all the prep work by Jerry (N5SGM), we were able operate 4 stations for the contest portion that made over 300 contacts on both digital and SSB Phone. We also had several visitors stop by that we expect to see at our next meeting.

KARS would like to recognize the following organizations for supporting our ARRL Field Day:

ARRL International Digital Contest - June 7-8, 2025

The ARRL International Digital Contest was held June 7-8. The team had a blast over the 30 hours and managed to rack up what we think is going to be an impressive score. Not all clubs report to HamDash, but comapared to those that do we smoked the competition! The QSOs were so hot, Mark (WM3R) overheated the USB board on his radio early on. Impressive since he was running QRP!
Unofficial Points Results:
Total: 14,948 points / 1,382 QSOs
By team member:
  1. 5116/447 - N5TER - Tom
  2. 3928/398 - KE5GL - Mark R.
  3. 3794/351 - W1BBT - Jesse
  4. 2069/190 - W6TIR - Jim
  5. 41/ 6 - WM3R - Mark C.

Texas Parks on the Air - April 12-13, 2025

Jesse (W1BBT) did his second POTA activation at Guadalupe River State Park as part of the Texas State Parks on the Air. The location sits at a trail head and got some foot traffic from inquisitive hikers. Click here for pictures from the weekend.

Agricultural Museum WIFI Upgrades - April 5, 2025

In the beginning, the Museum had a single GVTC wireless modem inside the Art classroom. We began the expansion process a couple of years ago after a contractor ran an underground fiber optic cable from there to the log cabin. With the expert help of Ben (K5AYR) and Mark (N5YZV), we installed mesh access points (APs) inside the cabin, and outside the cabin covering up the grassy area under the trees. Later we added another AP with a high gain sector antenna outside of the Art classroom so that the Museum could run wireless point-of-sale terminals at the eastern gate (by the swimming pool) for events such as Art Shows and Bierfest. In the latest round of expansion, Jerry (W5MIG), Ben (K5AYR) and Dave (N7RF), with the help of museum director Russel Rust (who lives on Rust Rd right behind Al Walters’ ranch) extended the network from the cabin to the red barn with very compact 60-GHz building-to-building Ubiquiti bridge units. Inside the barn, we ran a splitter feeding an AP for barn events (parties, weddings, dances, bluegrass jams, etc.) and an outdoor 90-degree sector beam AP on the outside south wall of the barn for use during tractor pull events. We finished up on Thursday just in time for today’s antique tractor pull. Russell assisted us by bringing a cherry picker over last weekend and running CAT6 cable across the barn rafters and also installed the mounting bracket for the tractor field AP on the outside wall of the barn.
60ghz Access Point
Access Point on the backside of the barn

Winter Field Day - January 24th-26th, 2025

Winter Field Day is an exciting annual event for amateur radio enthusiasts, taking place on the last full weekend of January. The event is organized by the Winter Field Day Association which strongly believes that ham radio operators should practice portable emergency communications in winter environments. KARS will be participating in the event this year with plans to operate over the entire contest period.

Total Eclipse - April 8, 2024

Several members of KARS were involved in assisting the Boerne PD and Kendall County placing spotters in key locations to observe and report. Jesse (W1BBT) and Jim (W6TIR) were located inside the EOC to operate net control and relay information while spotters were given the tactical callsigns:

  • Methodist - Greg (K5KYR) / Jerry (W5MIG)
  • Comfort - George (W5GRG) / Chris (KD5ZLR)
  • Alamo - Rick (N5RCT)
  • Sisterdale - Gavin (KI5MCD)
  • Kendalia - Rowland (K5TY)
  • Bergheim - Lloyd (KF5ZHW)
  • Pipe Creek - Marsh (WA5UBO)
  • Boerne Central - Ethan (KI5SLS)
  • Boerne West - Mark (KJ5CBL)
  • Boerne East - Dennis (KJ5EHE)

Additional assistance was provided by Don (KI5AIU) at the Sisterdale repeater ensuring we had a backup plan in the event the 146.640 repeater failed. The net provided key information to Boerne PD, and Cheif Perez very much appreciated the effort of the entire KARS team.

Annular Eclipse - October 14, 2023

Public Service Assistance to Boerne Police for Solar Eclipses On October 4th, KARS met with Captain Steve Perez of the Boerne Police Department regarding KARS members assisting with the two eclipses passing over the area. Captain Perez would like to incorporate our communications capabilities into their planning. He noted the cell phone system has been overwhelmed during past events and he wants to ensure that doesn't hinder their response. His minimum requirements from KARS are:

  1. A station in the Emergency Operations Center (EOC)
  2. A station on Main St to cover the Hill Country Mile Rod Run
  3. A station at the Methodist Boerne Medical Center, Menger Springs, Boerne
* They could add additional assignments if we have enough interest from our members.

Eclipse paths