Posts Tagged ‘VHF’
A Soggy Mount Herman SOTA Activation (W0/FR-063)
Although I’ve operated a number of VHF contests from the summit of Mount Herman, I had not yet activated it as a Summits On The Air (SOTA) peak. Mount Herman is a 9063 foot mountain just to the west of Monument, Colorado, pretty much in ”my back yard.” Steve WG0AT did the first SOTA activation of Mount Herman, back in May 2010, chronicled here in one of his famous videos. There is a sometimes rough Forest Service Road 320 that leads to the trailhead, then it’s a little more than a one mile hike to the top with 1000 feet of elevation gain. I call it a tourist hike, since it has just enough challenge to make it feel like a climb and there’s a great view at the top. At least on most days.
I was not expecting much of a view today since low rain clouds were dominating the sky. I was just hoping I would not get completely drenched by rain. The weather was definitely marginal but from my house I saw the clouds lift a bit, so I thought it was worth a try. The ARRL September VHF Contest is also this weekend, so it was a great combo opportunity: SOTA + VHF Contest.
I hopped in the Jeep and quickly made the drive to the trailhead. Then I scooted on up the trail, making it to the summit in about 30 minutes. Just as I reached the summit, the rain really kicked in. I set my gear down under a tree, got out my HT, attached the 1/2-wave antenna and started calling on 147.42 MHz. I wanted to bag my four SOTA qualifying contacts in case the weather turned worse. I quickly worked Frank K0JQZ and Steve WG0AT. Then George AB0YM, operating as a rover in the VHF contest called me from grid DM78, so I worked him as well.
I had my trusty Arrow Yagi antenna with me but I didn’t want to bother with assembling it in the rain. I got out the FT-817, put a vertical antenna on it and called on 144.200 USB. I found stations working the VHF contest and completed QSOs with them: WB0RRU and K3ILC.
The rain intensified so I abandoned the summit and headed back down. All in all, it was not a great hike but I was successful in activating Mount Herman.
73, Bob K0NR
Two SOTA Activations: W0/SP-099 and SP-115
Lately, I have been focusing on activating the SOTA (Summits On The Air) peaks near our cabin in the mountains. The basic idea is to identify a SOTA summit, hike to the top and make a few contacts on VHF. On Friday, my spousal unit (Joyce, K0JJW) and I decided to head out to an unnamed peak (W0/SP-099), southeast of Buena Vista, CO. By no coincidence, this summit had not been activated yet, so we’d get the esteemed honor and glory of being the first.
For lesser known summits, a bit of research is required to figure out the route. My first stop is to check the SOTA database for basic information on the summit. I’ll usually have to dig further using ListsOfJohn and SummitPost. ListsOfJohn is an incredible database of topographical information, listing every summit along with information such as elevation, lat/lon, rise, etc. (The Colorado SOTA information was gleaned from ListsOfJohn.) SummitPost will usually have more detailed information on a summit but only for the more popular ones. The SOTA Mapping Project is another excellent resource with very useful interactive topo maps. And, of course, I also dig out the US Forest Service map for the area, which often gives the best view of access roads.
We drove the Jeep to within a mile of the summit and started hiking up. I posted our route information on ListsOfJohn, so take a look there for that information. The summit is unnamed, so it is referred to by its elevation: 10123. I had my Yaesu VX-8GR burping out APRS packets which were plotted on aprs.fi when we reached the summit.
When we reached the summit, I spotted myself on the SOTAWatch web site using the SOTA Goat app on my smartphone. More importantly, the night before the hike, I sent an email to some of the radio amateurs that were likely to be within VHF range. That paid off and I worked Jim KD0MRC, Walt WZ0N and John K3NOQ on 146.52 MHz FM. Jim was hiking to Harvard Lakes above 10,000 feet, so it was special to be able to contact him on the trail. A little later, I caught KV4AL who was mobile near the top of Mount Evans. While only one contact is required to “activate” a summit, four contacts are needed to earn SOTA points, so I was happy to make these four QSOs. My gear was a Yaesu FT-60 driving a 3-element Arrow yagi antenna.
In addition, Joyce and I generally work each other on the SOTA the summit. The SOTA rules say that “QSOs with others within the same Activation Zone do not count towards the QSO total” which means that one of us needs to hike down a bit to get outside of the activation zone (75 feet vertical feet from the summit). We take turns doing this so that each of us activates the summit and makes a contact with the summit.
We took a round about path back to the Jeep and headed for Bald Mountain. At this point, we were both very tired and the thunderstorms were moving in. We decided to at least check out the access to Bald Mountain (Wo/SP-115) even if we didn’t climb it that day. It turns out that there is a 4WD road that goes to the top of the mountain, so we drove to the summit. The road is very rough in a few spots but the Jeep handled it nicely. At the top, we hiked back down a bit to meet the non-motorized ascent requirement for SOTA. We also did our “work each other” technique while on the mountain so that we each had a contact. I was not able to raise anyone on 146.52 MHz but I did catch Carl K5UK on the 146.745 MHz repeater and worked him on simplex. By this time, it was raining with lightning getting closer, so we abandoned the summit and headed back to the cabin.
Thanks to the guys that took the time to contact us on the two summits.
73, Bob K0NR
A Little Mountaintop Video
While digging through the archives, I came across some previously unseen video from the 2012 Colorado 14er Event. Joyce KØJJW and I operated from Mount Sneffels (SOTA W0/UR-001) and this video shows a radio contact with Mark KTØAM on Mount Shavano.
The 2013 event will be held August 4th, see www.14er.org.
Summits On The Air (W0/SP-112) – Castle Rock
There is a very jagged peak just east of Buena Vista, CO called Castle Rock (not to be confused with the city by the same name). I knew this was a SOTA summit (W0/SP-112) and I had my eye on it for a while now. It is extremely rocky and jagged near its summit, so I was not sure if it could be ascended without a technical climb. A little research revealed that it was climbable but quite steep near the top. SummitPost.org has a good description of how to ascend this peak.
My hiking partner and wife, Joyce K0JJW, joined me on the climb. We managed to get off the preferred route and got into some very steep rock scrambling. Good judgment prevailed and we regrouped and found a more reasonable path but probably cost us an extra hour of hiking. As advertised, it did get very steep at the top. (Study the SummitPost information more carefully than I did.)
Recently, I picked up an Arrow 3-element Yagi antenna for 2 Meters (Model 146-3). This antenna can be dismantled and carried inside a reasonable size daypack (or strapped on externally). The boom has two threaded holes for mounting the antenna on a camera tripod. I used a MountainSmith trekking pole that can double as a camera monopod and mounted the antenna on it.
For this SOTA activation, I kept it simple and just used my Yaesu FT-60 to work 2 Meter FM. Accordingly, I configured the Yagi antenna for vertical polarization. (There are two mounting holes on the boom, so you can choose vertical or horizontal orientation.)
The trekking pole is not self-supporting and does not provide much additional antenna height but it makes the antenna a lot easier to point for extended periods of time. I like to use a trekking pole for hiking, so this is a good way to get a little extra utility out of it. I am pleased with how this antenna system performed and will use it again.
73, Bob K0NR
This Spewed Out of the Internet #25
Here’s another update of interesting important stuff spewing forth from the internet.
I put my two presentations from HamCon Colorado out on the web: Practical Amateur Radio Measurements and Mountaintop VHF in the Colorado High Country . Also, check out Kelly N0VD’s blog posting on the event.
Having trouble finding a repeater to use on VHF? Check out my Shack Talk article on HamRadioSchool.com
KB5WIA provides some good tips on EME operating.
Hans PD0AC addresses the question: What’s the Best Chinese Dual-band HT? For best price/performance, he selected Baofeng UV-B5/UV-B6 (and I agree).
The Noise Blankers continue to publish their Ham Hijinks. Remember: Do Not Take These Guys Seriously. Seriously. Do not do this. Seriously.
There’s lots of great ham radio events coming up this summer. This weekend is the CQ Worldwide VHF Contest, the only “true VHF contest” out there since only the 50 MHz and 144 MHz bands are used. Then there’s the Colorado 14er Event, which includes Summits On The Air (SOTA) activations, on August 4th. (Don’t forget to check out the great new Colorado 14er Shirts!) The Colorado QSO Party is another great operating event, on August 31st.
Remember: There is no such thing as ground.
Think about it: an infinitely large electrical node with zero impedance able to sink an infinite current. Not likely.
73, Bob K0NR
NFD from Corney Fell
Months of less than pleasant weather gave way to a sunny but breezy weekend. Ideal for the NFD contest. There was quite a bunch of us involved but unfortunately due to a domestic planning error we had family staying.
I did my bit by helping to set up and an hour or so of logging but no operating. Shame really as, working under Andrews callsign G4VFL/P across 6m, 4m and 2m all in around 180 qso’s were made.
Nice and relaxed contesting from the top of a very isolated fell road. Well done all.
VHF field day
I’ve been so busy at work.over the last 2 months that I’ve barely turned a rig on. It hasn’t stopped me sending off a rant to the rsgb rag about the lack of focus on celebrating successes that our young and newcomers achieve as well as the price of new gear. That’s another story though. Needless to say I expect a few comments.
Onto more positive things. This weekend is the VHF NFD and a bunch of us will be active on 2m and 6m from corney fell. We’ll be in the single transmitter category and expect a couple of hundred contacts at best and a few gallons of tea and a hundredweight of biscuits. Definitely my kind of contest.
Looking forward to working you all…listen out for MX0WRC