Posts Tagged ‘VHF’

Summits On The Air – Colorado Style

14erLOGOsmallSummits On The Air – Colorado Style is the title of my presentation at Hamcon Colorado, 2 pm Friday May 13th. I will be discussing the Summits On The Air program and the Colorado 14er Event.

The slides are available here:
Summits On The Air -Colorado Style

The conference will be excellent. I hope to see you there!

73, Bob KØNR

The post Summits On The Air – Colorado Style appeared first on The KØNR Radio Site.

Announcing: 25th Annual Colorado 14er Event

14erLOGOsmallAmateur Radio operators from around Colorado will be climbing many of Colorado’s 14,000-foot mountains and Summits On The Air (SOTA) peaks to set up amateur radio stations in an effort to communicate with other radio amateurs across the state and around the world. Join in on the fun during the 25th annual event and see how many of the mountaintop stations you can contact. This year the event is expanded to include the entire weekend. However, many mountaintop activators will hit the trail early with the goal of being off the summits by noon due to lightning safety concerns.

See the very cool 25 Year Anniversary t-shirts available at http://www.cafepress.com/wg0at

The 14er event includes Summits On the Air (SOTA) peaks, which add over 1700 potential summits! If you aren’t up to climbing a 14er, there are many other summits to choose from (with a wide range of difficulty). See the W0C SOTA web page at w0c-sota.org

Radio operators who plan to activate a summit should post their intent on the ham14er Yahoo Group. To subscribe to the “ham14er” email list, visit the Yahoo groups site at http://groups.yahoo.com/group/ham14er/ . Also, be sure to check out the event information at http://www.ham14er.org  It is also a great idea to post an ALERT on the SOTAwatch.org website.

Frequencies used during the event
Activity can occur on any amateur band including HF and VHF. The 2m fm band plan uses a “primary frequency and move up” approach. The 2m fm primary frequency is 147.42 MHz.  At the beginning of the event, operators should try calling on 147.42 MHz. As activity increases on that frequency, move on up the band using the 30 kHz steps. Don’t just hang out on 147.42 MHz…move up! The next standard simplex frequency up from 147.42 MHz is 147.45 MHz, followed by 147.48 and 147.51 MHz.

Frequency (MHz)CommentsFrequency (MHz)Comments
147.42Primary 2m FM Frequency, then up in 30 kHz steps14.06020m CW Frequency
147.45, 147.48, 147.51Alternate 2m FM frequencies14.34520m SSB Frequency
446.000Primary 70 cm FM frequency18.09217m CW Frequency
446.025Alternate 70 cm FM frequency18.15817m SSB Frequency
144.2002m SSB calling frequency21.06015m CW Frequency
50.1256m SSB calling frequency21.33015m SSB Frequency
Other Bands/ModesStandard calling frequencies and/or band plans apply.28.06010m CW Frequency
28.35010m SSB Frequency

Warning: Climbing mountains is inherently a dangerous activity.
Do not attempt this without proper training, equipment and preparation.

Sponsored by The Colorado 14er Event Task Force

Here’s the event flyer in pdf format: Colorado 14er Event Flyer 2016

The post Announcing: 25th Annual Colorado 14er Event appeared first on The KØNR Radio Site.

Yaesu FT-1DR: A Trail Friendly SOTA HT

A common topic in the QRP community is the Trail Friendly Radio (TFR) concept for backpack-style operating on the high-frequency bands. I’ve adapted the concept for the VHF/UHF bands, calling it the VHF Trail Friendly Radio (VTFR).

IMG_0728edit

Strong candidates for the best VTFR include the Elecraft KX3 (with 2m option) and the Yaesu FT-817. Heck, both of these radios deliver all of the HF bands, 6m and 2m in one portable package. (The FT-817 also has 70cm.) See my blog post that compares the two rigs.

But the other set of strong contenders for the best VTFR is one of the many dualband HTs available on the market. It is hard to beat the compact, portable attributes of these great little radios for casual use on the trail. I’m not going to review them all but instead talk about my current favorite: the Yaesu FT-1DR. (Yaesu has recently replaced the FT-1DR with the newer model FT1XDR, which is the same design but with an improved GPS receiver and larger battery pack.)

My main usage of the radio is when hiking and doing Summits On The Air (SOTA) activations. This radio has a lot to offer in terms of capability and features, but the main things that stand out are 2m/70cm band coverage, two independent receivers and built-in GPS/APRS capability. Most SOTA VHF operating is on 2m fm so that band is critical, but I also make contacts on 70cm. More important is that together 2m and 70cm covers that vast majority of fm repeaters in my state, providing the best backcountry repeater coverage. The built-in APRS features allow the HT to be an effective tracking device as I move down the trail. SOTA chasers can see my position in real-time and anticipate when I’ll be on the summit. The radio has two separate receivers which turns out to be very useful when on the trail. With two receivers, I can monitor 146.52 MHz (2m fm calling frequency, often used for SOTA) while also keeping an ear on a local 2m or 70cm repeater. Another configuration is using one side of the radio to ping my location via APRS while the other side monitors 146.52 MHz.

The extended receive capability of the radio opens up lots of listening options: AM broadcast, FM broadcast, airband, shortwave and NOAA weather radio. I don’t use these very often but there are times that I want to tune to weather or news.

I am not a huge fan of Yaesu’s C4FM digital mode but do use it on occasion. The DN (digital narrow) mode supports voice and position information simultaneously, so Joyce KØJJW and have been using it to keep track of each other on the trail. The radio provides a basic indication of distance and direction to another C4FM radio.

One final note: if you buy an FT-1DR, I recommend upgrading the belt clip to the BC-102 clip from Batteries America. It is way better than the standard one from Yaesu.

73, Bob KØNR

The post Yaesu FT-1DR: A Trail Friendly SOTA HT appeared first on The KØNR Radio Site.

Winter SOTA Activation of Kaufman Ridge North

Today, Joyce KØJJW and I activated Kaufman Ridge North (W0C/SP-085) for Summits On The Air (SOTA). We’ve been on the summit before, including the first ever SOTA activation back in September of 2012. This summit is close to our cabin, so it made for a convenient hike. The mountain is not that difficult of a climb but we encountered quite a bit of snow in March, up to three feet in places, which we tromped across with snowshoes.

IMG_0720edit
Joyce K0JJW on snowshoes in typical trail conditions

My blog posting about the next mountain to the south, Kaufman Ridge HP (W0C/SP-081), outlines a good way to access both summits during the summer. However, a seasonal gate closure (December to April) means we needed to find a different route. We approached the mountain from the north, parking our vehicle on Castle Court (a short side road off of Kaufman Road). We quickly crossed what appears to be private property (empty lot, no signs) to get to the US Forest Service boundary. Once we hopped the fence we were on public lands. We intentionally routed to the east to avoid some houses.

Snowshoe route shown to summit of Kaufman Ridge North
Snowshoe route shown to summit of Kaufman Ridge North. We parked at Castle Court, the unlabeled road that connects with Kaufman Road.

I don’t claim that this route is optimal. We had to break a lot of trail, pushing through the snow. We found a section of trail that had recent snowshoe traffic on it but it wasn’t of much use to us heading to the summit. We followed numerous game trails which appeared and disappeared on the side of the mountain. Mostly, we busted through the snow on our own. Surprisingly, the last quarter mile to the summit had little snow, so we removed our snowshoes at that point and just hiked in boots.

IMG_0728editMy Yaesu FT-1DR has become my favorite rig for SOTA activations. It covers both 2m and 70cm with dual-receiver capability. it has a built-in GPS receiver and APRS capability that facilitates easy APRS tracking. Joyce and I have a pair of these which we’ve been using to track each other’s positions on the few occasions we get separated on the trail.

 

 

Bob K0NR knocks out a few 2m fm contacts from the summit
Bob K0NR knocks out a few 2m fm contacts from the summit

After we made the summit, I made a few contacts on 146.52 MHz. Thanks to Jim KDØMRC, Dave KØHTX, Carl K5UK and Candy KEØDMT for giving me my four required SOTA contacts.

The weather turned out to be better than predicted…partly cloudy and temps around 50 degrees F. On the way back down, we retraced our ascent path so we had more of a snowshoe trail to follow. I have to admit that this trip was a good lesson in how off-trail snowshoeing can really be a challenge. This was many times more difficult than a summer trail hike of equal length and elevation gain. Trip stats: 2.6 total miles, 1300 vertical feet.

At least, that’s my story and I’m sticking to it.

73, Bob K0NR

The post Winter SOTA Activation of Kaufman Ridge North appeared first on The KØNR Radio Site.

January VHF Contest Plus SOTA

A view of Pikes Peak from Mt Herman.

A view of Pikes Peak from Mt Herman.

It’s been a while since I’ve done a January VHF contest from a mountaintop so I decided to give it a try from Mount Herman this year. The ARRL recently changed the contest rules to allow the use of the national 2m fm calling frequency for contests. See Coming Soon: 146.52 MHz in ARRL VHF Contests. I wanted to see how this change would play out in practice when doing a combination VHF Contest plus SOTA activation. In previous attempts, I had to vector the SOTA activity to another 2m fm frequency for it to be a legal contact for the contest. The SOTA + Contest operation is attractive because it has all the elements of a fun SOTA hike coupled with the increased activity of a VHF contest. The contest brings out the weak-signal folks with very capable stations, increasing the probability of making some good DX contacts.

Bob K0NR using an HT to make contacts on 446.0 MHz FM.

Bob K0NR using an HT to make contacts on 446.0 MHz FM.

 

Joyce KØJJW and I hit the trail at 10:30 AM local with the goal of being at the summit around noon (1900 UTC) for the start of the ARRL contest. The trail was icy, but manageable with the gripping devices on our boots. The weather was chilly but not bad for January. At the summit, I configured my FT-60 handheld radio for 146.52 MHz using a 2m half-wave vertical. My first call netted a QSO with Tim, KAØMWA in Castle Rock. I worked a few other stations on 2m fm and then set up the 2m ssb station (FT-817 plus Arrow II antenna). On 144.200 MHz SSB, I contacted two Wyoming stations in grid DN71, about 140 miles away. I also gave a call on 446.0 MHz fm and worked W3DHJ and KE0HBW mobile.

Freq    Mode    UTC     Call     Grid
146.52    FM    1900    KA0MWA   DM79
146.52    FM    1902    N0AXK    DM79
146.52    FM    1905    N0LP     DM79
146.52    FM    1905    K0GPA    DM79
146.52    FM    1905    WG0AT    DM79
146.52    FM    1920    N0ISB    DM78
146.52    FM    1923    N0LEA    DN70
144.2    SSB    1932    WY7KY    DN71
144.2    SSB    1935    K0ALE    DM79
144.2    SSB    1938    AB0YM/R  DM79
144.2    SSB    1939    KG0RP    DN70
144.2    SSB    1940    WA7KYM   DN71
144.2    SSB    1942    KC4YLV   DM79
446.0    FM     1948    W3DHJ    DM78
144.2    SSB    1949    WE7L     DM79
144.2    SSB    1951    N0SP     DM79
446.0    FM     2000    KE0HBW   DM79

The wind was strong at the summit and kept blowing everything around, making it difficult to operate the radio and manage the antennas. After an hour of operating, I decided to QRT and head on down. I know I missed a bunch of potential contacts, especially having not gotten on 70 cm and 6m ssb.

Except for the short operating time, the operation played out as expected. I was able to work the SOTA folks and 2m fm enthusiasts on 146.52 MHz. I made it a point to not hog the calling frequency, as there are quite a few folks that monitor there. Switching over to 2m ssb, I worked the contest crowd, typically with more capable vhf stations. My score is a whopping 114 points, in the single-op portable category.

Thanks to everyone that got on the air to play radio that day!

73, Bob KØNR

The post January VHF Contest Plus SOTA appeared first on The KØNR Radio Site.

2016 SOTA Activity Days

Bob summitSummits On The Air (SOTA) operating events are a great way to promote activity and create opportunities for summit-to-summit radio contacts. Here’s the 2016 calendar, an update of the 2015 list suggested by Guy N7UN. Many of these dates are aligned with VHF events but there will be HF activity as well.

IMG_1836Of course, any day is a good day for SOTA activity.  The August 6-7 weekend looks to be the alignment of the planets with four events happening around that weekend. Early August usually offers excellent conditions for hiking the highest peaks in Colorado, so come on out and play.

For more info on VHF SOTA, see How To Do a VHF SOTA Activation.

Get off the couch, put on your hiking boots, grab your backpack, grab your radio but most important: get on the air!

73, Bob K0NR

The post 2016 SOTA Activity Days appeared first on The KØNR Radio Site.

Winter Assault on Mt Herman (W0C/FR-063)

On the last day of the year, it seemed like a good idea to get in one more SOTA activation. It turns out that I had not been up Mt Herman (W0C/FR-063) all year, even though it’s close by. See this page for the trail description. Joyce KØJJW and I decided to hike up in the morning, reaching the summit around 11 AM local time.  This was my third SOTA activation of Mt Herman, but I’ve operated from there many more times in various VHF contests (back before SOTA was a thing in Colorado).

Trail conditions

Winter conditions on Mount Herman trail.

The road to the trailhead was in good condition but snowpacked and icy. This road is not plowed during the winter but it is often passable with a decent 4WD vehicle. Today, you could make it to the trailhead with 2WD and some careful driving. The trail conditions were typical for winter time: almost completely covered in snow with a few bare spots showing here and there. The trail was packed powder and not particularly icy. Still, we appreciated having traction devices on our boots. This trail can be downright treacherous when it ices up, so traction devices (Yaktrax, Microspikes, etc.) are highly recommended. Trekking poles can be helpful, too.

K0JJW K0NR

Joyce K0JJW and Bob K0NR on the trail.

Once at the summit, I used my Yaesu FT-60 handheld radio and a half-wave vertical antenna to work people on 146.52 MHz. Having notified a number of people that I would be on the air, I actually had a bit of a pile up on 2m fm. In short order, I worked KE5QNG, WA6MM, KH7AL, WG0AT, W7AWH, K9MAP, K0JQZ, K9DBX, W0STU, KD0MFO, WB0ROK, KD0VHD and KL7IZW. Best DX was about 50 miles with W7AWH in Pueblo West. Thanks to everyone that got on the air to work me.

The weather was cold, about 15 deg F, so we didn’t stay too long on the summit and headed back down the trail. OK, maybe “winter assault” is a bit of an exaggeration. Let’s call it a fun hike in cold weather.

73, Bob K0NR

Other postings on SOTA activation of Mt Herman:
Soggy Mount Herman SOTA Activation (W0C/FR-063)
Mt Herman: SOTA plus VHF Contest

The post Winter Assault on Mt Herman (W0C/FR-063) appeared first on The KØNR Radio Site.


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