SOTA outings by KØMOS and contributors

Author: k0mos

  • A rare SOTA gem

    I just wrapped up a trip in Europe and I could not resist to activate a few summits while I had the chance. Staying in Austria (OE), I was able to activate two nearby and new (for me) associations (HBØ and HB). I also took the opportunity to make a second attempt on HBØ/LI-ØØ4 – Augstenberg. This summit eluded me last year due to extreme winds in excess of 100 km/h (60 mph). We had to turn around shortly before reaching the summit. This time the WX forecast looked more promising.

    As usual, Herbert/OE9HRV organized the activations when I visit his neck of the woods. Arno/OE9AMJ and Ramon/OE9CSH joined the activation and what these guys had in store for me was quite a trip. Weather and time permitting they were planning to continue on a loop with the possibility to activate three more summits for a total of four. The best part…   HBØ/LI-ØØ2 or Naafkopf was one of them. This unique SOTA summit is a rare gem. The border of three countries, Lichtenstein (HBØ), Switzerland (HB) and Austria (OE) meet exactly at the summit and it is therefore worth 30 SOTA points in total. I am not aware of any other SOTA summit which has a similar setting.

    Panorama from the summit station
    Panorama from the summit station

    The complete trip could potentially rake in a total of 58 points on a ~20 km (12.5 mi) loop with 1700+ m (~5600 ft) elevation gain including two new associations for my log. Needless to say that I was motivated :)

    This trip report is focused on the Naafkopf only.

    The route we took in red
    The route we took in red
     Trailhead:  5243 ft / 1598 m
     Summit:     7740 ft / 2359 m (Augstenberg)  
                 8432 ft / 2570 m (Naafkopf) 
                 6860 ft / 2091 m (Nospitz)
     Elev. gain: 4832 ft / 1473 m (exludes gondola - hiking only)
     Roundtrip:  10.2 mi / 16.4 km(exludes gondola - hiking only)


    Compare this summit with my other activated summits

    How to get there:

    OE9HRV & OE9AMJ
    OE9HRV & OE9AMJ

    We headed south from OE towards the Principality of Liechtenstein (or Liechtenstein for short.) Liechtenstein is a rather small independent country near the Lake of Constance and shares the border with Switzerland and Austria. With an area of just over 160 square kilometers (62 sq mi), it has a population of ~35’000 and a total of eleven SOTA summits – all of them already activated. We started our hike in Malbun, the only ski resort in Lichtenstein.

    Parking/Trailhead

    Larger Map

    Red Tape:
    Nothing comes to mind.

    The Ascent:

    Elevation Profile
    Elevation Profile
    That is where we are going
    That is where we are going

    From Malbun we took the gondola from 5274 ft (1608 m) to the Sareiserjoch at 6526 ft (1990 m).  At the top we were greeted by an Alphorn player – a nice touch to start our day – and we could hear her tunes for quite a while across the valley. The first ~2.5 mi (4 km) follows a trail to the Chalbergrad and continues along a very pronounced ridge towards our first summit. Great views in both directions of the ridge. The last 0.4 mile (0.6 km) before HBØ/LI-ØØ4 – Augstenberg, are kind of steep. The summit is a rocky outcropping on a rather large, sloped and green summit. The obligatory cross at the summit served as a backdrop for our first SOTA summit photo of the day.

    Naafkopf -7
    OE9CSH, OE9AMJ, KØMOS, OE9HRV (l to r)

    On the summit we setup two stations, a CW station for Arno/OE9AMJ and an SSB station for the rest of us. No problem to activate a summit on 40m in Europe :)

    Within 40 minutes we all had our contacts logged and were on our way to the grand prize of the day. Reluctantly we decided to skip Gorfion (OE/VB-241) to allow plenty of operation time on the Naafkopf. In retrospect a wise decision, considering that we reached the car just as the sun went down.

    Haeding towards Pfälzerhütte
    Haeding towards Pfälzerhütte

    From the summit of Augstenberg (2359 m/7740 ft) we had to descend to the saddle, where the Pfälzerhütte is located at 2108 m/6916ft. A great location for having a beer, assuming you have the time… we decided to continue on to the next summit – a 462 m/1516 ft ascent over 1.8 km/1.1 mi. There is still a well defined trail up the steep slope and only one ‘critical’ spot we had to navigate. Some lingering snow from last weeks nasty weather in combination with the steep terrain slowed us down just a bit about halfway up to the summit. After that it was smooth sailing.

    The Summit:

    Setup on the summit:
    Setup on the summit:

    We reached the small summit around 14:00 local time under blue skies and with very comfortable temperatures. An artificial wall built from rocks, ~40 cm/16 in. in height, is dividing the summit along the border lines and building the base for the dominating summit cross. To make it really easy for us, each section of the wall was clearly marked with the name of the country so we would always know where we are :)

    We followed the same procedure as before; Arno setting up a CW station with his FT-817 and an Alex loop, and Hebert setting up the KX-3 with a 20m J-Pole for the SSB crowd. I got the honor to go first and I chose to start on the Swiss (HB) side of the summit – hoping to activate my 10th SOTA association.

    Arno/OE9AMJ on the summit
    Arno/OE9AMJ on the summit

    We took turns on the radio.  Every 15-20 minutes we announced an operator change so we all had the chance to activate every section (association) of the summit. But announcing a summit change after the first hour stirred up some confusion in the chaser community. Changing the operator and the summit within 30 sec. on the same frequency is not very common. A short explanation of the situation kept everybody’s log in sync.

    Taking turns on the summit worked out great, giving me enough time to talk and share stories with other SOTA operators and to take plenty of pictures and video footage of a perfect day.

    The view towards the east with Arno's Alex loop
    The view towards the east with Arno’s Alex loop

    We saved the best for last. With just 11 SOTA summits, Lichtenstein (HBØ) is a rare opportunity for chasers. We changed our antenna for the 15m band, hoping to get across the Atlantic and catch some stations in the US. The plan worked, NA1RL/Richard in Connecticut copied my signal  and so did K2JB/Jimmy and AE4FZ/Chuck both in NC. The highlight for me however was the contact with YC5YZ on Sumatra Island – my first contact with Indonesia :)

    Following my motto ‘always stop when things are at the top I announced another operator change and handed over the mic to Ramon.

    Ramon/OE9CSH on 20m
    Ramon/OE9CSH on 20m

    The Descent:

    Alpine ibex
    Alpine ibex

    We almost had to detach Herbert from the radio by force… as longs as he has some space left in his logbook, he will not quit. But there was another summit beckoning  from the distance. It was already late in the afternoon and a cool breeze forced us to put on another layer for the descent. Arno led the way down.  A herd of Alpine ibex retreated from us and gave us little chance for a decent photo. At the Pfälzerhütte we turned west towards Alp Gritsch. Arno could not believe that we passed up the chance to have a beer, but chose to press on to activate another summit. Luckily he is a great guy and readily admitted that the chance to activate another HBØ summit does not come along everyday for me. I guess I owe him a beer.

    Tälihöhi with Nospitz in the distance
    Tälihöhi with Nospitz in the distance

    We passed by the Alp towards Tälihöhi, the last ridge we had to get over before heading down to Malbun. The Nospitz can be easily reached by a short ascent from the Tälihöhi. From this ridge it was another 45-50 minutes back to town and to the car. We all started to feel some wear and tear in our bones and joints and reached the car just when the sun went down – perfect timing.

     

    Needless to say that it was an incredible day. The weather cooperated, amazing views, a great hike, special camaraderie and overall perfectly organized by Herbert – a trip I will always remember.

    Here some additional pictures:

    Some video impressions:
    httpvh://www.youtube.com/watch?v=gA8NaYhz1fQ

    If you would like to leave questions or comments, please do so through Youtube.

     

     


    ATTENTION !! WARNING !! There are old mountaineers, and bold mountaineers… there are no old-bold mountaineers. Hiking and mountain climbing are potentially hazardous activities particularly in Colorado with its extreme elevations. I am not accepting responsibility for any death or injury resulting from activations based on my trip reports. Proper training, experience, and personal capability assessment is required – enjoy!

  • Activation Alert: K0MOS on WØ/SR-Ø19 (Argentine Pk. – CO)

    My contribution to the NA-SOTA weekend :) :

    Date:           07 September 2013
    Time (Approx):  16:00 UTC – 17:00 UTC
    Name/Reference: Argentine Peak / WØC/SR-Ø19
    Location:       Colorado / DM79co
    Elevation:      4179 m / 13738 ft – 10 Point(s)
    Call Sign:      KØMOS
    Frequencies:    14.3425-ssb +/- QRM
                    146.52-fm

    If I have coverage, you can follow my progress via APRS.

    QRP (5W) only.
    Equip.: FT-817 and vertical Buddipole

    Keep your ears/antennas pointed towards Colorado.

    Thanks

    Matt / KØMOS


    ATTENTION !! WARNING !! There are old mountaineers, and bold mountaineers… there are no old-bold mountaineers. Hiking and mountain climbing are potentially hazardous activities particularly in Colorado with its extreme elevations. I am not accepting responsibility for any death or injury resulting from activations based on my trip reports. Proper training, experience, and personal capability assessment is required – enjoy!

  • Activation Alert: K0MOS on W0/FR-194 and W0/FR-107 on 9/5/13

    Since I need to be in Denver for a meeting I will try to activate the following summits on my way back. The time is a (semi) wild guess and depends on the efficiency of the meeting :)

     Summit:        WØC/FR-194 (Genessee Mtn. – CO)
     Date:          05 September 2013
     Time: Approx.: 20:00 UTC – 20:30 UTC
     Location:      N-Colorado / DM79iq
     Elevation:     2520 m / 8284 ft – 2 Point(s)
     Call Sign:     KØMOS
     Frequencies:   14.3425-ssb +/- QRM
                    146.52-fm

    Time and weather permitting, I will move on to:

     Summit:        WØC/FR-1Ø7 (Green Mountain)
     Date:          5 September 2013
     Time: Approx.: 21:30 UTC – 22:00 UTC
     Location:      N-Colorado / DM79jq
     Elevation:     2085 m / 6855 ft – 1 Point(s)
     Call Sign:     KØMOS
     Frequencies:   14.3425-ssb
                    146.52-fm

    QRP (5W) only.
    Equip.: FT-817 vertical Buddipole and homebrew Yagi-Uda.

    Follow me on APRS and keep your ears/antennas pointed towards Colorado.

    Thanks

    Matt / KØMOS


    ATTENTION !! WARNING !! There are old mountaineers, and bold mountaineers… there are no old-bold mountaineers. Hiking and mountain climbing are potentially hazardous activities particularly in Colorado with its extreme elevations. I am not accepting responsibility for any death or injury resulting from activations based on my trip reports. Proper training, experience, and personal capability assessment is required – enjoy!

  • WØC/PR-Ø21 (Mt. Parnassus) & WØC/FR-ØØ6 (Bard Peak)

    W0C/PR-021 (Mt. Parnassus) 4129 M / 13574 ft
    W0C/FR-006 (Bard Peak) 4150 M / 13641 ft
    August 21, 2013

    by KØMOS

    Mount Parnassus (no, not the famous Mountain from the Greek mythology) and Bard Peak are two summits in the Rocky Mountains of Colorado. They are just along I-70, shortly before entering the Eisenhower tunnel (coming from the east). I have driven by these unspectacular mountains numerous times without even noticing them. They are rather easy to access via Herman Lake TH which is right at the exit 218 of I-70. Looking at the SOTA map for WØC, I decided to pay them a visit.

    Mt. Parnassus as seen from the TH (almost)
    Mt. Parnassus as seen from the TH (almost)

     

     Trailhead:  10313 ft / 2526 m
     Summit:     13574 ft / 4137 m (Parnassus) 
                 13641 ft / 4150 m (Bard Peak)
     Elev. gain: 4574 ft  / 1394 m
     Roundtrip:  9.0  mi  / 14.5 km


    Compare this summit with my other activated summits

    How to get there:

    From Denver, take I-70 West and take exit 218. If you go through the Eisenhower tunnel, you went too far. Take a right at the end of the ramp and drive back, parallel to I-70, for 0.15 mi (0.25 km). Information kiosk and outhouse are right there.

    Parking/Trailhead

    View Larger Map

    Red Tape:
    Both summits are part of Arapaho National Forest and their rules and regulations apply.

    The Ascent:

    The elevation profile
    The elevation profile
    Trail splits after 300 yds
    Trail splits after 300 yds

    The first part of the trip follows the Watrous Trail. From the info kiosk I headed out east. After a few hundred yards the trail splits… I continued east on the trail through dead and downed trees and lots of noise coming from the highway :(

    When I tried to take a few snapshots with my trusted Canon G9 I only got a ‘Lens error, restart camera’ error message combined with an ear piercing whining noise in return.  A couple of restarts gave me the same result – the lens was stuck in the open position – therefore all photos were made with my video cam. My excuse for the ‘great’ quality of all the pictures. What I did not know at this point, more camera problems were to come.

    Down and dead trees
    Down and dead trees

    After about a mile into the hike the trail starts to head towards the north, along what I can only assume is Watrous Creek. Even though the creek was still carrying water, the noise coming from I-70 was still prominent. Eventually the forest/dead-tree environment makes room for alpine tundra with quite nice scenery and views of Woods Mtn. and Mt. Parnassus. The trail follows along the west side of the creek and disappears soon after it crosses over to the other side towards the saddle between Woods Mtn. and Mt. Parnassus.

    View of Mt. Sniktau
    View of Mt. Sniktau

    From here it is a straight shot to the saddle after passing through a few remaining trees. Conveniently, somebody erected a stone cairn near the top of the saddle. You can barely see it from here but aiming for the cairn brings you into perfect position for the last 3/4 miles or so up a rocky/grassy slope to the top of Mt. Parnassus. The views are rather nice, nearby Mt. Sniktau (WØC/PR-Ø31) clearly visible with Quandary Peak (WØC/PR-Ø14) in the background under mostly blue skies with only a few white clouds.

    The Summit:

    The rather steep west slope flattens towards the summit. The stone shelter can be reached without any obstacles. The large summit could host quite a few activators with their gear and antennas without getting too crowded. The views are stunning in all directions. Lot’s of high altitude SOTA peaks are in  clear view.
    Just after I finished shooting a 360 degree video, the battery of my remaining camera quit on me. Now I was sitting at 13574 ft / 4137 m with beautiful weather and a second summit to activate, and no camera – very disappointing.

    Mt. Evans, Mt. Bierstadt with the saw-tooth route as seen from the summit
    Mt. Evans and Mt. Bierstadt with the saw-tooth route in the distance

    With hardly any wind and with very comfortable temperatures I started to setup my antenna and gear. I logged my first QSO at 16:00 UTC, exactly as planned. I handed out the wrong SOTA reference number at first. Realizing that something was fishy, I asked Glenn/N4MJ to verify it for me. I only logged four QSO’s in 25 minutes. Since I had still a lot of ground to cover and because there were no more takers, I started to pack-up and move towards Bard Mountain.

    Bard Peak as seen from Mt. Parnassus
    Bard Peak as seen from Mt. Parnassus

     

    Mt. Parnassus to Bard Pk.:
    The decent from Parnassus down to the saddle is similar to the west flank, a steep grassy slope with some rocks. Larger outcroppings can be circumnavigated without any problems . From the bottom of the saddle it is another ~600 ft (183 m) of elevation gain to the summit. I started to feel my knees and other body parts but having another 10 pointer so close by released some new energy.

    It took me more than an hour to get to the top, slightly longer than planed. Setting up my shack went without hick-up under still amazing weather conditions. Logged 12 QSQ’s  in 15 minutes on 20m SSB. Looked like all the chasers were finally awake ;)

    After a few more but unanswered CQ’s I started my long hike back to the car.

    The Descent:
    Nothing noteworthy on the descent… took the same route via Parnassus. It felt like it took forever going down to the saddle and up again before heading down to the saddle of Parnassus and Woods Mountain. I  reached the car, conked out after 9 miles and 4574 ft ASL (14.5 km / 1394 m). A snack and fresh water supply in the car gave me back the necessary energy for the drive home.

    73, Matt/KØMOS

    Feel free to leave comments and/or questions below.


    ATTENTION !! WARNING !! There are old mountaineers, and bold mountaineers… there are no old-bold mountaineers. Hiking and mountain climbing are potentially hazardous activities particularly in Colorado with its extreme elevations. I am not accepting responsibility for any death or injury resulting from activations based on my trip reports. Proper training, experience, and personal capability assessment is required – enjoy!

  • Activation Alert: K0MOS on W0/PR-021 and W0/FR-006 on 8/21/13

    More summits are waiting to be activated. I will try an activation for:

     Summit:        WØC/PR-Ø21 (Mount Parnassus – CO)
     Date:          21 August 2013
     Time: Approx.: 16:00 UTC – 17:00 UTC
     Location:      N-Colorado / DM79cr
     Elevation:     4129 M / 13574 ft – 10 Point(s)
     Call Sign:     KØMOS
     Frequencies:   14.3425-ssb +/- QRM
                    146.52-fm

    If WX and my body cooperate, I will move on to:

     Summit:        WØC/FR-ØØ6 (Bard Peak)
     Date:          21 August 2013
     Time: Approx.: 18:00 UTC – 19:00 UTC
     Location:      N-Colorado / DM79cr
     Elevation:     4150 M / 13641 ft – 10 Point(s)
     Call Sign:     KØMOS
     Frequencies:   14.3425-ssb
                    146.52-fm

    QRP (5W) only.
    Equip.: FT-817 and vertical Buddipole.

    Keep your ears/antennas pointed towards Colorado.

    Thanks

    Matt / KØMOS


    ATTENTION !! WARNING !! There are old mountaineers, and bold mountaineers… there are no old-bold mountaineers. Hiking and mountain climbing are potentially hazardous activities particularly in Colorado with its extreme elevations. I am not accepting responsibility for any death or injury resulting from activations based on my trip reports. Proper training, experience, and personal capability assessment is required – enjoy!

  • Activation Alert: K0MOS on W0/PR-025 and W0/FR-007 on 8/10/13

    Going back to the Mt. Evans Wilderness for two activations attempts. Thunderstorms are predicted (even before noon) and my time on the summits will be short.

    Here the details:

     Summit:        WØC/PR-Ø25 (Rogers Peak – CO)
     Date:          10 August 2013
     Time: Approx.: 1430 UTC – 1500 UTC
     Location:      N-Colorado / DN70eo
     Elevation:     4074 m / 13391 ft – 8 Point(s)
     Call Sign:     KØMOS
     Frequencies:   14.3425-ssb +/- QRM
                    146.52-fm / 14.200-ssb

    Moving on to:

     Summit:        WØC/FR-ØØ7 (Rosalie Peak)
     Date:          10 August 2013
     Time: Approx.: 1630 UTC – 1730 UTC
     Location:      N-Colorado / DN70en
     Elevation:     4130 m / 13575 ft – 10 Point(s)
     Call Sign:     KØMOS
     Frequencies:   14.3425-ssb
                    146.52-fm, 144.20-ssb

    QRP (5W) only.
    Equip.: FT-817 and vertical Buddipole + homebrew 4-element Yagi-Uda

    Keep your ears/antennas pointed towards Colorado.

    Thanks

    Matt / KØMOS


    ATTENTION !! WARNING !! There are old mountaineers, and bold mountaineers… there are no old-bold mountaineers. Hiking and mountain climbing are potentially hazardous activities particularly in Colorado with its extreme elevations. I am not accepting responsibility for any death or injury resulting from activations based on my trip reports. Proper training, experience, and personal capability assessment is required – enjoy!

  • Colorado 14er Event: WØC/PR-Ø2Ø and WØC/FR-ØØ3

    I had been planning all along to participate in the CO-14er Event this year. This event is  organized by Bob/KØNR, for Portable Mountaintop Operation on the 54 official 14er summits (Summits higher than 4267m) in Colorado.  It was however uncertain until late Friday whether I would actually be able to do so. Since it is mainly a VHF/UHF event, I home-brewed a lightweight 4-element Yagi-Uda for 2m – you can read more about it in a separate blog entry.

    I selected Mount Evans as a target since it is ‘only’ a 2.5h drive from my home QTH and it has several other SOTA peaks nearby… a good chance to bag more than one summit.

    The Plan:
    I planned an early morning (8:30 MST) SOTA activation of nearby  Gray Wolf Mtn. (4138 m/13602 ft),  hoping to be on the air by 11:00 MST on Mt Evans (4339 M / 14264 ft) via Mt. Spalding (13842 ft / 4219 m). A total of 5 miles (8 km) and 3100 ft (945 m) ASL.

    Evans - Route
    The route I took

    I drove up to Summit Lake in the Mt. Evans Wilderness to start my hike. I left my car at 6:30 MST under blue skies but with a fierce and chilly wind. Wool hat and gloves felt nice.

    Summit Lake Area
    Summit Lake Area
    Bighorns at the lake
    Bighorns at the lake

    There were only a few cars at the parking lot and a small herd of Bighorns observed my last preparations. I set my HT to 146.52 and 147.42 (Co-14er event primary frequency) hoping to catch any early  14er activators on my hike up. I moved quickly to warm up and passed only one group of hikers in front of me. The initial steep ascent towards Mt. Spalding had the desired effect and I could remove one layer of clothing under heavy breathing. I talked to two stations near Denver on 146.52 who were already aware of the event going on before I moved on.

    Elevation Profile
    Elevation Profile

    I joined another hiker from Boulder who was also heading towards Gray Wolf Mountain. We continued our hike through the ‘wetlands‘ between Spalding and Gray Wolf. It’s a delicate endeavor to cross the fragile alpine tundra under any circumstances but with the wet area in front of us we had to pick our route carefully to keep our feet dry and our impact to a minimum. The remaining route is pretty straight forward, a steep and rocky final ascent and and we reached the summit at 8:30 MST as planned.

    My shack on Gray Wolf - Mt. Spalding / Mt. Evans and Mt. Bierstadt in the background
    My shack on Gray Wolf – Mt. Spalding (center) / Mt. Evans (left) and Mt. Bierstadt (right) in the background

    Just as I was setting up my HF antenna I heard W1DMH/Doug (a SOTA Mountain goat) calling CQ on 2m from Mt. Bierstadt – just ~2.5 miles S of me. My first S2S contact in the log :)

    Thanks to decent propagation conditions, 20m contacts were easy to make and my log filled-up fast. I was just done with packing up my gear to continue towards Mt. Spalding, when I heard NM5S/Alan and WSØTA/Fred on 2m. These accomplished SOTA Mountain goats are normally not heard on voice frequencies – two more S2S contacts in the log and my first on the air contacts with Alan and Fred.

    Mt Evans as seen from Mt. Spalding
    Mt Evans as seen from Mt. Spalding

    I was now 30 minutes behind my schedule and started to head down the mountain towards the ‘wet lands‘ again. For quite a while now, I had been hearing a dog barking towards the east of me. That’s well off the beaten path of Mt. Evans and I was wondering what was going on. The continuous barking was frantic at times so I finally decided to investigate and check what was going on… perhaps a runaway dog ? Hiker with dog in distress? It turned out to be nothing like that at all, just some morons climbers who decided to tie their dogs to a rock and go rock-climbing – it was not appreciated by the dogs at all.
    Now I was really behind schedule and I rushed up Mt. Spalding, hoping to make good on some of the lost time. From Mt. Spalding I talked to KCØRPS on Quandray Peak and WE7C on Mt. Bierstadt. Coming up to the ridge-line to Mt. Evans, I could copy NØBCB/Bryan on Castle Peak (another 14er). Since I wanted a S2S contact I pressed on to the summit, not realizing that Bryan was already in process of packing up for the day.

    I reached the summit of Mt. Evans at 11:35 MST and had my first contact at 11:37 MST with KDØWBB/Scott, a young ham in Loveland on 2m, using my new homebrew Yagi-Uda antenna.

    On Mount Evans 4339 m/14264 ft - WØC/FR-ØØ3
    On Mount Evans 4339 m/14264 ft – WØC/FR-ØØ3

    My log from Mt. Evans:
    [table id=2 /]

    At this time, most of the other 14er activators had already left the summit or they were packing up their gear. It was now past noon and rain clouds were moving in. With the strong monsoon season this year we are currently blessed with daily rain showers and thunderstorms (at least in northern Colorado).

    I was in a comfortable position… with a road going all the way to the summit I was planning to hitch a ride back to Summit Lake where my car was parked in case of rain/thunderstorm. A friendly couple from Cincinnati gave me a ride. Shortly after reaching the car… the rain started :)

    My final word:
    Mt. Evans is very crowded thanks to the road going all the way to the top. Barking dogs, crying babies and screaming people (out of excitement) made it sometimes hard to copy the signals. Even though I was sitting at the very edge of the summit, I constantly had to be careful not to poke somebody in the eye with my antenna. Putting down the Yagi is also a bad idea… it might get crushed. That’s why I opted not to setup my HF antenna. If you decide to activate Mt. Evans, go early in the morning and if you are lucky, you might have the summit all to your self.

    Feel free to leave questions and/or comments below.

    73, Matt/KØMOS


    ATTENTION !! WARNING !! There are old mountaineers, and bold mountaineers… there are no old-bold mountaineers. Hiking and mountain climbing are potentially hazardous activities particularly in Colorado with its extreme elevations. I am not accepting responsibility for any death or injury resulting from activations based on my trip reports. Proper training, experience, and personal capability assessment is required – enjoy!

  • Yagi-Uda the III.

    No, this is not the name of another royal baby… it’s about my third attempt to build a 2m antenna for my SOTA activations. In my earlier iterations I was unable to strike the balance between size/weight and usability.

    What happened so far:

    Yagi - Ultralight
    click for larger image

    My first attempt to build a Yagi-Uda antenna was based on a design by  Paul/KD5IVP. It worked, but had some crucial flaws for my endeavors. It was a 3-element antenna made out of piano wire and a carbon fiber arrow as a boom. Very small and  lightweight indeed but in high winds/gusts the elements were flapping like a seagull during take-off. It’s demise came on it’s second outing… the arrow broke in half while bushwhacking up a mountain and I lost some of the piano wires in the woods. To read more about it and to see it in action check out this post.

    Yagi - Tapemeasure
    Tape measure Yagi-Uda folded for transportation

    I then moved on to a tape measure 3-element antenna based on a design by Joe/WB2HOL. It worked well and accompanied me on several activations –  even a few 14ers (Summits higher than 14’000 ft / 4267m). My main gripe with this antenna is that it is delicate to transport as well. The steel tape gets kinked easily since the antenna is strapped to the outside of my backpack. It’s rather easy to replace the director and reflector, but soldering the coax to the steel radiator is another story. It turned out that this design is also vulnerable to high winds and your arms start to feel the weight after a few minutes without support. You can see the antenna in action in this video, around 3:30 into the clip.

    The one?
    I continued my research for a suitable 2m Yagi-Uda which would fit my requirements:

    • Lightweight (but sturdy enough to withstand high winds)
    • Easy and save to transport
    • Easy to build (even for me)

    I eventually stumbled onto IZ2UUF’s Website –  an Italian radio amateur who enjoys hiking and playing with radios as well. He designed an 4-element Yagi-Uda weighing only 80 grams (~2.9 ounces)!! All elements fit into the carbon fiberglass boom (fishing rod) for easy transport with no matching network necessary. The description to build the antenna focused on the critical parts with excellent pictures to support the instructions.

    Davide/IZ2UUF modeled the antenna with 4NEC2, a free antenna modeling software package. Since he shared his input file with me, I took the opportunity to download the free SW and to learn more about antenna modelling. After a few more e-mail exchanges with him I was convinced by his design and started to source all the parts.

    The final product
    The final product

    I did not have a fiberglass fishing pole available and opted to use a plastic one I had lying around. Davide is using aluminum welding rods for his elements which I could not find at the desired length/diameter here in the US. I therefore ordered aluminum alloy 6061 rods instead (1/8″ x 6′ ) from a supplier in IL (for details see the resource section below). My build also differs in the connector (BNC instead SMA). All these changes resulted in a slightly heavier (194 g / 6.8 ounces) first version compared to Davide’s antenna. My boom alone is heavier than Davide’s complete antenna (96 g / 3.4 oz). However, I am planning to improve/reduce the weight in version two.

    I had a chance to use the antenna over the week-end during the CO-14er event. All I can say so far is that it worked well and that the weight is not an issue at all… huge improvement to the tape-measure version.

    Mount Evans 4339 m/14264 ft - WØC/FR-ØØ3
    Mount Evans 4339 m/14264 ft – SOTA Ref#: WØC/FR-ØØ3

    Comparison:
    [table id=1 /]

    Resources:

    More pictures:

    Acknowledgements:
    My thanks go to Davide/IZ2UUF for the design and follow-up communication as well as to Bryan/NØBCB for letting me borrow his antenna analyzer.

    Feel free to add your questions and/or comments

    73, Matt/KØMOS


    ATTENTION !! WARNING !! There are old mountaineers, and bold mountaineers… there are no old-bold mountaineers. Hiking and mountain climbing are potentially hazardous activities particularly in Colorado with its extreme elevations. I am not accepting responsibility for any death or injury resulting from activations based on my trip reports. Proper training, experience, and personal capability assessment is required – enjoy!

  • Activation Alert: K0MOS activating CO-14er Event on 8/4

    Can’t find an excuse not to go out tomorrow and participate in the CO 14er Event. I am planning to hike up Gray Wolf Mtn. first. If weather and other conditions (my breath) allow it, I am continuing to Mt. Evans via Mt. Spalding (13842 ft / 4219 m), hoping to be on the air on a 14er by 11 AM MST.

    Here the details:

     Summit:        WØC/PR-Ø2Ø (Gray Wolf Mtn. – CO)
     Date:          4 August 2013
     Time: Approx.: 1430 UTC – 15:00 UTC
     Location:      N-Colorado / DN70eo
     Elevation:     4138 m / 13576 ft – 10 Point(s)
     Call Sign:     KØMOS
     Frequencies:   14.3425-ssb +/- QRM
                    146.52-fm / 147.420-fm (monitoring)

    Moving on to:

     Summit:        WØC/FR-ØØ3 (Mt. Evans – CO)
     Date:          4 August 2013
     Time: Approx.: 1700 UTC – 18:00 UTC
     Location:      N-Colorado / DN70eo
     Elevation:     4339 m / 14236 ft – 10 Point(s)
     Call Sign:     KØMOS
     Frequencies:   147.420-fm (CO-14er Event frequencies)
                    14.3425-ssb 
                    (if wx, crowds and Rangers allow)

    QRP (5W) only.
    Equip.: FT-817 and vertical Buddipole + homebrew 4-element Yagi-Uda (debut)

    Keep your ears/antennas pointed towards Colorado.

    Thanks

    Matt / KØMOS


    ATTENTION !! WARNING !! There are old mountaineers, and bold mountaineers… there are no old-bold mountaineers. Hiking and mountain climbing are potentially hazardous activities particularly in Colorado with its extreme elevations. I am not accepting responsibility for any death or injury resulting from activations based on my trip reports. Proper training, experience, and personal capability assessment is required – enjoy!

  • Activation Alert: K0MOS on WØ/FR-ØØ4 (Pikes Peak – CO)

    Date: 18 July 2013
    Time: Approx.: 15:00 UTC – 16:00 UTC
    Name/Reference: Pikes Peak / WØC/FR-ØØ4
    Location: Colorado / DM78lu
    Elevation: 4292 m / 14110 ft – 10 Point(s)
    Call Sign: KØMOS
    Frequencies: 14.3425-ssb +/- QRM
    .                      144.200-ssb / 146.52-fm

    If I have coverage, you can follow my progress via APRS and if you are lucky you might catch me on a webcam.

    QRP (5W) only.
    Equip.: FT-817 and vertical Buddipole / Tapemeasure Yagi-Uda for 2m

    Keep your ears/antennas pointed towards Colorado.

    Thanks

    Matt / KØMOS


    ATTENTION !! WARNING !! There are old mountaineers, and bold mountaineers… there are no old-bold mountaineers. Hiking and mountain climbing are potentially hazardous activities particularly in Colorado with its extreme elevations. I am not accepting responsibility for any death or injury resulting from activations based on my trip reports. Proper training, experience, and personal capability assessment is required – enjoy!