Start Point: Letterman Park (Clovis, CA)
End Point: Pump House Park (Leonard & Ashlan – Clovis, CA)
Shortest Route: 6.1 miles / 16 minutes (approx.)
Number of Teams: 2
Fox: Rick (W6KKO)
Number of TX: 4
The central valley enjoyed another T-Hunt event on Saturday March 11. There were two teams this time consisting of John (K6MI) and Eric (N6IG) on one team, Marty (K6KTP), his grandson, and Dennis (KI6NVG) created the competition. The teams met at Letterman Park and the water tank overhead created some directional ambiguity with the incoming signal from the fox.
Start Point: Hwy 180 & McCall
End Point: Tollhouse Rd. south of Hwy 168 (Under the power lines)
Shortest Route: 34 miles / 54 minutes (approx.)
Number of Teams: 5
Fox: Mike (KG6MSV)
Number of TX: 1
It was the best of times, it was the worst of times, it was the age of wisdom, it was the age of foolishness, it was a tough T-hunt. Five teams competed this hunt and only one found it after several hours of searching. Hints were provided as time passed yet the majority of the hunters did not finish the hunt. Marty (K6KTP) and his grandson were the only team to locate the fox, who was located under the high power line towers south of highway 168 and east of Tollhouse road.
This particular hunt found some of the hunters working together in order to locate the fox, yet the win and finish eluded their efforts. The teams consisted of Ron (N6MTS) and a friend; John (WJ6Y) along with his son and grandson; Conrad (WA6KUE) and his wife; and rounding up the teams were Dennis (KI6NVG), Gary (KM6CVB), and Rick (W6KKO).
By 1 PM the sky was darkening with rain clouds and the hunters were in need of food and refreshment. The teams and fox met at Tollhouse Market to enjoy some food and drinks. Commiseration was mutual amongst the hunters as the fox relayed the hiding location. Fortunately, the food was good and we beat the rain home.
Start Point: Hwy 180 & McCall
End Point: Tollhouse & Lodge Road (Sierra Elementary School Lot)
Shortest Route: 27 miles (approx.)
Number of Teams: 4
Fox: Marty (K6KTP) & Dave (NQ6S)
Number of TX: 1
The central valley hunters were back at it again on July 16. An early start at 10:00 AM kept the heat at bay for a while. Four teams made the effort this round, and around and around they went at the start point. Mike (KG6MSV) was able to break away at the starting location and kept the lead. He was the first to arrive with a 45 minute travel time. Next to find the fox was Rick (W6KKO) after a 95 minute duration. The next to arrive was John (K6MI) at three hours and 25 minutes, with Ron (N6MTS) just five minutes behind John.
A short discussion of “what if” and “almost” was followed up with some well needed food and beverages. Norm (WB6LLW) met with the group as we were in his neck of the woods. Of course the ever present voice of direction (YEP) called out bearings to provide a hint to the teams.
The fox for the next hunt, Mike (KG6MSV), has asked that the hunters advise on the difficulty level for the upcoming hunt on Saturday, September 17. On a scale of 1-10, with 10 being very difficult, send an email to email@example.com with your level number. The results will be passed along to the fox.
Start Point: Letterman Park, Clovis
End Point: NE area of Herndon & Academy
Shortest Route: 12 miles (approx.)
Number of Teams: 4
Fox: Mike – KD6LDA
Number of TX: 2 (1 high, 1 low power)
Another fine Saturday morning brought together the greatest T-Hunters in the central California area. With their batteries charged, the four teams beat the bushes and enjoyed another fine T-Hunt. The fox for this hunt was Mike (KD6LDA) who used a yagi antenna on a 10’ pole secured with a tripod. The main T-Hunt radio transmitted about five watts. The smaller low power transmitter used only 15mW and was hidden in some tall grass nearby.
The Fox for this hunt was Ken – WA6OIB & Ron – N6MTS. The starting point was from Clovis at Letterman Park. The 4 teams were Mike – KD6LDA (solo); John – K6MI (solo); Rick – W6KKO & Dennis – KI6NVG; and Rob – AE6GE & Dave – NQ6S. And finally the Fox transmitters were located at the Goldenrod Elementary School in Kerman, on the NW corners of S. Goldenrod Ave. and Kearney Blvd.
As usual, the Fox is always tasked with making the hunt a bit different and more challenging. So for this hunt we decided to use dual transmitters, on the same frequency, and modulated by the same source. Because the signal is almost all tones and CW the transmitters were set to USB modulation, with the intent of beating one carrier against the other to create a warbling signal. Well that was our theory anyway. Both radios were producing about 50 watts into separate cross-polarized yagi antennas.
First order of business I want to thank all who participated…we had fun and I hope you all did to. My cohort on the hunt was Dave NQ6S. Lots of help there.
We located the transmitters (4) on the mountain area around the CARP repeater site:
1st location was approx 1/8 mile away using 7 watts into a pair of horizontal loops. That was the main T heard at start point.
2nd location was actually on the property owned by the repeater site owner put in with his permission. My bad because it was really private property and the hunters had no way of knowing that. That unit was approx 3 watts into a rotating 3 element quad
that quit rotating after a few hours. Further work required here on that.
3rd location was the school up near the top of 4 lanes running a 50mw talking transmitter held to the backside of a fence support at the left end of sports area in back of school.
4th location was a 15mw transmitter on a sign post up high at a pullout on Auberry Road. That quit after a few hours. After coming home I did some testing and found it would run in excess of 8 hours on a new battery. Another error on my part. Got my wires crossed not having a new battery for the hunt.
I actually had 6 transmitters with me so I could have solved that if I was aware.
Start Point: Letterman Park, Clovis End Point: Enterprise Trail SW corner of Temperance & Shepherd in Clovis Shortest Route: 5.8 miles (approx.) Number of Teams: 5 Fox: Mike – KD6LDA Number of TX: 2 (1 high, 1 low power)
John Morrice K6MI and Erik Scott NI6G, the winners of the November 22, 2014 event, devised a great hunt. They employed some deception and misdirection to hinder and throw the hunters off the fox’s trail.
When RF meets terrain, you can get some interesting results. The transmitter hunt on November 22, 2014 was no exception. With five teams starting the hunt
As the winners of the last hunt were not available to hide, I volunteered for the duty. In my research planning for this hunt I had identified several potential locations for the fox to hide. After scouting a few locations I decided on one that I had found during a geocaching outing a couple years ago. Which it turns out made an awesome location for the hidden transmitter.
An evening transmitter hunt was held August 27 by the CARP Central Valley Transmitter Hunters. I, Rob Mavis AE6GE, was the fox for the hunt.
The hidden transmitter consisted of an HT set to 1.5 watts, controlled and modulated with a Byonics PicCon and a M² 2M3 four element beam. The beam was attached to a piece of PVC pipe stuck into the ground so that it was only a few inched off the ground and vertically polarized. The beam was pointed north parallel to a chain-link fence (the start point was to the east.). Due to the proximity to the ground, the chain-link fence and the numerous fences around the park, high school an ponding basin, the hunters had to be seeing many signal reflections.
The hunt stated at 7:45pm, just as the sun was setting. There were no lights in the park itself, but light from the surrounding properties provided little usable light in the park. I set up a camp chair across the park behind a large pine tree to sit back and enjoy the event. Continue reading Transmitter Hunt Recap – August 27, 2014→
Amateur Radio in Fresno County and the Central Valley of California