Wanting to take advantage of the excellent weather today, I drove up to Evansburg State Park (US-1351, KFF-1351) for a quick morning activation. I wanted to give my Gabil GRA-7350TC vertical some air time, so I tossed it into the truck and headed out to the park.
The picnic table I planned to use had been moved from its usual spot. Not wanting to drag the heavy table back to where it belongs, I set up at a table I have used previously. It’s close to a hiking trail, so I needed to make sure my radials wouldn’t be a trip hazard for passersby.
I set up the Gabil antenna on its tripod at one end of the table. To facilitate tuning, I set up my Penntek TR-35 (5 watts, CW) and Elecraft T1 ATU within arm’s reach of the antenna. I meant to bring a 3-foot coax along, but it didn’t make it into my backpack. A 10-foot cable was the best I could do, so I just coiled up the excess. (Note to self: Keep a 3-foot cable in the backpack.)
I started out on 40M, so I laid out a 33-foot counterpoise wire on the ground. I reached for my little SWR meter, but it wouldn’t power on. It had been a while since I had last charged it, so the battery appeared to be dead. I ended up adjusting the antenna for maximum noise in the receiver and used the T1 to do the final matching.
After I had a few contacts in the log, I changed over to 20M. I built my 33-foot counterpoise wire so I could split it into two 16.5-foot wires. After laying out the two counterpoise wires, I tried to peak the noise. No joy. I just couldn’t find a discernible peak.
Just then, I remembered I had a 12-volt power cable for the SWR meter. Duh! Why didn’t I think of that sooner? After temporarily disconnecting the TR-35, I used the battery to power the SWR meter. I quickly got the antenna adjusted to a 1.3:1 SWR. I reconnected the TR-35 and got started. (Note to self: Throw a Powerpole splitter in the backpack.)
The action was relatively slow-going this morning, but there were a fair number of activators on the air. After a little over an hour, I had 14 contacts, nine of which were park-to-park.
Despite some minor glitches, it was an enjoyable morning operating in the park.
Today was shaping up to be the first day of a five-day heatwave here in southeastern Pennsylvania. Since there are excessive heat warnings in place for the next few days (and I don’t hold up too well in the heat these days), I went out for an early morning activation to beat the heat.
I drove up to Evansburg State Park (US-1351, KFF-1351), since my last visit was back in March. Because of a medical condition, I need to be careful with sun exposure. So, I looked around until I found a shady spot where I could set up my radio and use an antenna on my truck. My rig today was my Penntek TR-35 (5 watts, CW) and my 12-foot loaded whip mounted on my truck.
I started on 40M, and it didn’t take long to make my first 10 contacts. The Reverse Beacon Network (RBN) was reporting some strong hits from my 5-watt signal. After logging 15 contacts, I did some hunting and logged a few park-to-park contacts.
The 30M band was pretty quiet, yielding only 2 contacts. I had a little better luck on 20M, but the band conditions there weren’t all that great. I shut down after about an hour and a half, with 26 contacts in the log. Considering the early hour, I was satisfied with that.
In the end, it wasn’t the heat that was the problem today; it was the bugs. I was the target of both air and ground assaults by tiny mosquitos and huge ants. That was to be expected, I guess, since I was sitting in a wooded area on a warm day.
I hope the weather is better for Field Day next weekend. The extended forecast shows lower temperatures here, but a chance of rain on Saturday. Oh well, at least the heatwave will be over by then.
I was one activation away from the 20 needed for a POTA “Repeat Offender” award at Norristown Farm Park (US-4363, KFF-4363). After coming away empty-handed in my last attempt, I tried again this morning. This time I had a much better outcome.
Given the dismal weather forecast, I left my bike at home and operated instead from the shelter of my truck. I went with my go-to setup: Penntek TR-35 (5 watts, CW) and 12-foot whip with my homebrew loading coil.
The bands weren’t great, but I have seen worse conditions. There was a fair amount of fading with some static crashes from storms in the area. Despite those challenges, I made my first 10 contacts in about 15 minutes on 40M.
While I was on 40M, I heard Greg WA3GM activating US-1351 about 5 miles away. Greg was operating with the Pottstown Area Amateur Radio Club’s annual PAARC in the Park POTA event. Our park-to-park contact this morning was a repeat of one we made last year.
After operating for an hour, it started to drizzle, so I called it quits. My time on 40M, 30M, and 20M, produced 26 contacts, with two park-to-park contacts.
My timing was excellent, as I ran into a heavy downpour on my way home. In any event, I was happy to close the books on activation #20 at US-4363.
“Mama said there’d be days like this.” — The Shirelles
My week got off to a good start. I activated parks three days in a row with good success. With some nice Spring weather today, I thought I’d get the bike out for an activation. I drove out to Norristown Farm Park (US-4363, KFF-4363), since I’m one activation away from a Repeat Offender award there. My plan was to get in a bike ride, while completing my 20th activation.
Things didn’t go as well as I had hoped.
I last rode my bike there about eight years ago. A friend and I were doing some communications testing to prepare for a March of Dimes event. I rode all over the park with an HT, while my friend listened for me at the proposed Net Control location. I remembered seeing a picnic table just off the road, so I headed out in that direction. About a mile out, I found a covered picnic table. It wasn’t the one I remembered, but it seemed to be a better location.
The view from the covered picnic table I was using.
My setup was similar to the last time I used the bike. I mounted a Gabil GRA-7350TC vertical on my handlebars and used a 33-ft elevated radial. I easily adjusted the antenna for a 1.3:1 SWR on 40M. Then, I ran 20-ft of RG-316 over to the picnic table where I set up my Penntek TR-35 (5 watts, CW) and Elecraft T1 tuner.
You have to look closely to see the Gabil GRA-7350TC on my handlebars.
The 40M band seemed a little weak. I heard very little activity, and my hits on the Reverse Beacon Network (RBN) weren’t all that strong. After 10 minutes or or so of futile CQing, I reconfigured the radials and tuned up the antenna for 20M. This time I used three 17-ft radials.
Despite getting double-digit Signal-to-Noise readings on RBN, 20M wasn’t producing any takers. I tried calling a couple of activators, but I wasn’t getting through the pile-ups. I didn’t have much time this morning, so I gave up after 30 minutes with an empty log. After packing up my gear, I rode back to the parking lot.
This empty cage was located in the back of the clearing I was in. I have no idea why it was there or what kind of critter it might have been used for.
On the ride back, I tried to figure out what the problem was today. Was it propagation, my location, or was it just one of those days? Who knows?
Radio-wise, today was a bust. I did, however, get in a pleasant bike ride and a little exercise.
My original plan was to do a bicycle-portable activation in Valley Forge National Historical Park (US-0761, KFF-0761). Lousy weather and another commitment put those plans on hold. Instead, I did a short stationary-mobile activation there instead.
The two main picnic areas in Valley Forge opened for the season on April 1st, so I rolled into one of my favorite spots. Not surprisingly, I was the only one there. I don’t think that too many folks want to have a picnic at 0830 (local time) in the rain.
I set up my usual Penntek TR-35 (5 watts, CW) and 12-foot loaded whip and started out on 40M. The bands were recovering from some geomagnetic storming yesterday, but were still a little flakey. Contrary to propagation predictions, 40M turned out to be the most productive band for me today. The 20M band only produced two contacts, while 17M was a total bust today.
One of my hunters on 40M sent me his SKCC number. I always keep a straight key connected to the TR-35, so I easily completed an SKCC contact with him.
Part way through my activation, the rain started picking up. I headed around to the back of the truck to put a plastic bag on my homebrew loading coil.
I had to break out the foul weather gear for my loading coil.
After 20 minutes of futile CQing on 17M, I decided to call it quits. I ended up with 18 contacts. No DX today, but there were two known park-to-park contacts.
Hopefully, I’ll be able to get the bike out sometime next week.
With rain in the forecast, I headed out to Norristown Farm Park (US-4363, KFF-4363) early on March 31st and conducted my activation under the shelter of a picnic pavilion. I used a jaw clamp to mount a 17-ft whip antenna to one of the picnic grills. So, I guess you could call this another “Grills on the Air” activation. With the lousy forecast and being a weekday to boot, I had the entire picnic area to myself.
My 17-foot whip clamped to a grill
After installing the antenna on the grill, I laid out three 17-foot radials. With this setup, I easily obtained a 1.4:1 SWR. I set up my Penntek TR-35 (5 watts, CW) at the closest picnic table. The 18-foot length of RG-8x I brought along was a tad short, so I had to suspend it off the ground. I placed my LiFePO4 battery on top of the coax to prevent my little Elecraft T1 tuner from being dragged off the table.
My setup at Norristown Farm Park (US-4363, KFF-4363). My coax was a bit short, so I used my battery to keep my Elecraft T1 tuner from being dragged off the table.
There was a bit of static from the storm moving in, but the signals on 20M were strong enough to overcome it. Despite being early on a weekday, I made my first 10 contacts in about 13 minutes. I continued on 20M until the pool of hunters dried up.
After about 30 minutes, I shortened the whip for 17M. I only got the SWR down to about 1.9:1, so I let the T1 do the heavy lifting. The 17M band was less productive, but I made eight more contacts before calling it quits. My last QSO of the morning was with the Slovak Republic on 17M.
There were five grills next to the pavilion I was using. Hmmm… Maybe some sort of vertical array in the future?
After an hour on the air, I had logged 30 contacts with two park-to-park contacts. A few stations worked me on both bands. I also had three DX contacts: F1BLL, DL8NDG, and OM3CND.
It never rained during my activation, but that was fine with me. I had a nice dry outing to wrap up the month of March.
It has been quite a while since I’ve done any bike-portable operating. Over the past couple of years, I’ve dealt with medical issues of one sort or another. This year, I’ve avoided any serious issues, so I dusted off the bike and went out for a ride. While I was out, I tested some new gear for the bike. (I purchased all of the products mentioned with my own money.)
Antenna Mount
I make no claims of originality for this setup. I first saw this antenna mount in a YouTube video by VA7BIX. So, I found one on eBay and fired off an order to give it a try.
The antenna mount in question is a Nagoya RB-46. I had been looking for a way to mount my Gabil GRA-7350TC antenna (or any antenna with a ⅜-24 mount) on my bike. Originally intended for mounting on a car’s roof rack, the RB-46 can be clamped to the handlebars on bikes. With the kickstand down, my bike leans a bit. Fortunately, I can the adjust the RB-46 in two directions, so the antenna stays vertical. It accommodates a standard SO-239 to ⅜-24 antenna stud mount, which I had on hand.
Installing the RB-46 is quick and easy—for normal people. My installation, however, required extra time for searching the garage floor for dropped nuts and washers. Hardware mishandling aside, I installed the mount on my handlebars and adjusted it so the antenna would be vertical with the bike’s kickstand down.
Nagoya RB-46 antenna mount attached to my handlebars with my Gabil GRA-7350TC installed.
I also had a protective cap for the SO-239 in my junk box, so I put it to use here. Just in case it rains while I’m riding, I carry a ⅜-24 bolt in my handlebar bag. I figure I could put that in the antenna mount to keep the rain out. That’s probably overkill, but that’s how I roll. (No pun intended.)
New Panniers
I really like the cheap set of pannier bags I have been using for more than a decade. Sadly, they were really showing their age and were being held together with liberal applications of duct tape. Figuring I had gotten my money’s worth out of the old bags, I ordered a set of Bushwhacker Moab pannier bags.
The new bags are slightly larger than my old ones, so there’s more than enough room to carry my radio gear. My Bushwhacker handlebar bag has been going strong for about 12 years, so I’m hoping my new panniers also have a long life.
Schuylkill River Trail
I’m fortunate to live near the Schuylkill River Trail, a beautiful multi-use trail that runs along—you guessed it—the Schuylkill River. Since I haven’t been on the bike in a while, I chose a section of the trail for a three-mile ride that leads to a quiet local park.
Before loading up my bike, I always check the tire pressure. This morning, the front tire had gone flat, despite having fully inflating it a couple days earlier. After installing a new tube, I was finally on my way. Then, as I was driving to the trailhead, it started raining. Geez, what else!? Thankfully, the rain stopped by the time I reached the trailhead.
Bike loaded up and ready to roll
I rode about three miles to Towpath park, a ride I’ve done many times in recent years. The ride was uneventful, and I was soon setting up the GRA-7350TC on my new antenna mount. I used two 17-foot radials laid out on the ground and 25 feet of RG-316 coax. It was easy to get a 1.3:1 SWR on 20M.
Set up and on the air in the park
To see how it works, I set up my Penntek TR-35 on a nearby park bench. Tuning around I found some POTA activators to call. I ended up working three of them. It was fitting that one of my contacts was with Jim N4JAW. Jim is a bicycle/ham radio enthusiast I wrote about in a recent post. (Jim told me later that he was also bike-portable. You can read about his POTA activation operation and our QSO on his Ham on a Bike blog.)
My Penntek TR-35 set up on a park bench
Before tearing down, I checked the other bands with an antenna analyzer. I was able to get good matches on 30M through 12M. The 10M band was a little finicky. I didn’t use my longer radials, so I knew 40M would be tough.
Happy with the results, I loaded up the bike for the ride back to my truck.
Wrapping Up
I have a few takeaways from today’s ride:
The antenna mount worked great. However, using a PL-259 to BNC-F adapter on the antenna mount caused some clearance issues. It was a little tricky connecting the coax. I need to try using a right angle adapter next time.
The new panniers were easy to put on and take off the bike. Having a little extra room is a plus.
My short ride today was no Tour de France, but it reminded me how much I enjoy riding my bike. Yep. I definitely need to do more bike-portable outings this year.
I have been off the air for the past couple of weeks, so I set out to do something about that this morning. Taking advantage of some milder weather, I did some picnic-table-portable operating from Evansburg State Park (US-1351, KFF-1351).
I set up at a picnic table along one of the park’s trails. Using a jaw clamp antenna mount, I mounted my Gabil GRA-7350TC antenna to a picnic grill. I started with two radials, but I had some trouble getting an acceptable match on 20M. After I added two more, I got the SWR down to 1.3:1. Since I was next to a trail, I had to keep the radials on one side of the antenna to avoid being a trip hazard. I set up my Penntek TR-35 (5 watts, CW) and started calling CQ.
My Gabil GRA-7350TC antenna clamped to a grill
The band conditions were a little wonky, with an A Index of about 25 and an unsettled geomagnetic field. As a result, the contacts were coming in at a slower pace than usual. It took about 30 minutes to make my first 10 contacts.
Operating in Evansburg State Park (US-1351, KFF-1351)
I called it quits after about 40 minutes. Band conditions notwithstanding, I logged 12 contacts, including two DX contacts (F1BLL, IW2BNA) and three park-to-park contacts.
As I was packing up, I ran into a bit of an issue with the Gabil antenna. Despite my best efforts, I couldn’t unscrew the whip from the loading coil. As if that wasn’t enough, the sliding coil seemed to be stuck, too. I just put the whole antenna in the truck, so I could deal with it later.
When I got home, I took a closer look at the antenna. Using a pair of pliers I managed to remove the whip. I probably got carried away and over-tightened it when I put it together. I also got the sliding coil unstuck. My antenna is one of the early models where the adjustment scale is just a label that was stuck on. (On newer models, the scale is engraved.) The bottom of the label started peeling up and jammed the slider. A little surgery with a razor blade fixed that.
Even with my antenna issues, it was nice to get out for a little radio in the park.
No, I wasn’t running through the park. I was operating in the Straight Key Century Club’s Weekend Sprintathon contest from a POTA/WWFF entity. I ended up with two POTA/WWFF activations as a result.
On Saturday morning, I drove over to Norristown Farm Park (US-4363, KFF-4363), which has become one of my favorites. It was pretty chilly when I started, so I set up in the truck. (That turned out to be a poor decision.) I used my Penntek TR-35 (5 watts) and my trusty 12-foot loaded whip. I used my little MS2 straight key for the SKCC contacts.
My setup in the truck on Saturday. My little red American Morse MS2 straight key looks unusual but has a great feel.
My plan was to operate in the WES and only spot myself on the POTA and WWFF websites if I had trouble making my 10 contacts. The band conditions had improved significantly from the severe geomagnetic storms over the previous couple of days, so I was optimistic.
Starting out on 40M, I was pleasantly surprised to find a bunch of SKCC stations. I worked 13 WES stations on 40M before moving up to 20M to work a few more. SKCC WES contacts come at a slower pace than POTA contacts, so after an hour and 20 minutes, I only had 16 contacts. I was happy with that, though.
By that time, the temperature had gone up, and the sun was beating down on the windshield. It was really getting hot in the truck, so I pulled the plug and packed up for the day.
On Sunday morning, I went back to Norristown Farm Park for more of the SKCC WES. This time, I operated from the tailgate of my truck. I rarely do that, because the tailgate is too high off the ground. I had backed the truck up to a slight slope, so my chair was a bit higher than if I had been on flat ground. Still, it wasn’t all that comfortable for keying. I ended using my clipboard on my lap. My equipment was the same as the day before.
Operating from the tailgate on Sunday morning.
This time there was much less SKCC activity on 40M. Despite numerous CQ calls, I only logged four WES contacts. So, I made the command decision to spot myself on the POTA website and switch over to the paddles. The activity picked up dramatically after that.
This time I ended up with 21 contacts, which included three park-to-park QSOs. All together, I made 20 SKCC WES contacts over the weekend, which is not too bad for me.
I’ll have to try this again for next month’s Weekend Sprintathon.
Another busy weekend here in my neck of the woods. We had a family get-together in central Pennsylvania on Saturday, and I took part in a public service event with my local ARES-RACES group on Sunday. Despite everything going on, I squeezed in a short POTA/WWFF activation on Saturday morning before heading out of town.
I chose a spot in Valley Forge National Historical Park (US-0761, KFF-0761) that’s only a few miles from home. The parking lot serves as a trailhead for a popular trail, and it can be a busy place during the summer months. It wasn’t too bad today.
My original plan was to use some different gear and try out some antenna configurations. Being pressed for time, I went with my usual setup, which I knew—or thought—would work. That, of course, was my Penntek TR-35, Elecraft T1 tuner, and my 12-foot whip and homebrew loading coil combination. The SWR is a little higher on 40M and 30M, so I use the T1 to keep the rig happy.
I scanned the 40M band, and it was hopping. I planned to pick off some park-to-park QSOs before setting in on a frequency to call CQ. When I hit the T1, it didn’t even try to find a match, and the LEDs showed a 3:1 (or higher) SWR. I tried other bands, including ones I knew were close to 1:1, and the T1 wouldn’t budge.
I couldn’t remember the last time I changed the battery, so I put in a fresh one. No go. Next, I ran through the T1’s internal diagnostics. Nothing out of the ordinary there that I could see. On (very) rare occasions over its 11 years of service, the T1 would get fussy and refuse to match certain bands. Just running through the diagnostics seemed enough to clear up those issues—but not today.
I disconnected the T1 and went straight from the TR-35 to the antenna. The truck-mounted whip has very low SWR on 20M and 17M, so I confined my operation to those bands.
My ailing T1 after I disconnected it
Fortunately, 20M was in great shape for 0930 (local time), and I had a steady stream of hunters. I needed to leave at 1000 (local), and I had spent an inordinate amount of time playing around with the T1. However, my 30-minute activation netted me 26 contacts with two of them park-to-park. Most of the contacts were on 20M, but I had five on 17M before pulling the plug.
I drove back home, saddened that my trusty T1 was having issues. It has been so reliable over the years that I just took for granted that it would always work and match whatever antenna I was using.
Back at home, I did a couple of quick checks with different antennas, but no joy was to be had. I suspect a stuck relay, but I’m not really sure how to discern that from the internal diagnostics routine. I bought it assembled and tested, so I’ve never poked around inside. I’ll have to download the instructions for the kit version to see if that offers any insights.
When I get some time this week, I’ll pursue this further and decide how to proceed. If any T1 users out there have advice to offer, I’m all ears.
[Update: I resolved the issue with the T1. It appears to have been a case of “cockpit error.”Here’s what it was.]
WB3GCK QRP Amateur Radio 