Winter SOTA Party on Mt Bindo 2 Aug 2015

Jenolan State Forest VK2/CT-005 1310m 8pts QF56AG

For the VK1 Winter SOTA Party I headed up to the NSW Central Tablelands on the Saturday afternoon so as to be ready for an early start on Sunday 2/8/15. En route I stopped off in the Jenolan State Forest for an activation of SOTA summit VK2/CT-005. Having already activated there in March it was just for the 3 winter bonus points and any contacts for the 10m/6m challenge. The summit is 90 km due west of home and takes just under 2.5 hours to get to by road. Upon arrival I put up a spot on SOTAwatch for 10m CW and quickly set up just down the hill from the tall pine trees to the east so as to have a better takeoff to Europe via the long path.

Jenolan State Forest activation site

Jenolan State Forest activation site VK2/CT-005

Luckily Nick VK2AOH was already waiting for me when I jumped on the key. On 10m SSB I had one call from VK2PM in Sydney who is not a regular SOTA chaser. Box ticked for the 10m/6m challenge! Next I went to 20m CW and worked a bunch of EU stations with received signal reports around the 4 or 5 mark so it seemed my signal was climbing over that pine forest. Then to 40m CW to keep the locals happy and 8 more contacts. One hour before sunset I had to close to make it to my destination so there wasn’t an opportunity for 40m SSB – sorry chasers. There were 3 summit-to-summit contacts on 40m with Justin VK7TW & Hugh VK5NHG on SSB and Ian VK5CZ on CW and a total of 21 contacts. A quick close down and then the short 25 min drive to the next summit, retracing my steps most of the way.

Shack in Jenolan State Forest VK2/CT-005

Shack in Jenolan State Forest VK2/CT-005

Mt Bindo VK2/CT-003 1363m 8pts QF56AH

Arrived at Mt Bindo 15 mins before sunset and started setting up the antenna. I was torn between jumping on 20m to catch the last of the EU long path propagation and setting up the camp site. There was quite a wind on the summit and it seemed best to create some shelter before starting to operate so the tent went up right next to the trig point. 45 mins after sunset I spotted on 20m CW and was able to work only one EU and one Qld station so the propagation had flown. I tried 20m SSB and made no contacts.

Camping at the Mt Bindo trig point VK2/CT-003

Camping at the Mt Bindo trig point VK2/CT-003

First Japan-Australia summit-to-summit

About to swap bands when a SOTA spot came in from an activator in Japan. It was Takeshi JS1UEH on 17m and he was activating Ashiosan JA/IB-006 in Ibaraki prefecture just NE of Tokyo. Switching bands I heard Nick VK2AOH making a contact so I thought there was a chance for me too. Takeshi’s signal was not strong, but it was the first SOTA station I’d heard from Japan so I was very excited. My antenna was set up north-south for Europe/NA not east-west for Japan so the weak signals were no surprise. The contact was made and a 429 report sent. This is the first summit-to-summit SOTA contact between VK and JA. Japan has only recently become part of SOTA on 1st July. Soon afterwards Takeshi spotted on 15m and his signal was a similar strength as on 17m. He apparently did 20m earlier too but I was unaware of that. Great to make the contact with Takeshi-san!

SOTA database record of first JA-VK S2S

SOTA database record of first JA-VK S2S


After the JA S2S excitement I progressed through 40m CW, 40m SSB and 80m CW. Unusually, there were no callers on 40m SSB, but it was 7pm by then so the band was in DX mode. I heard gunshots in the distance, several volleys worth. This was obviously hunters in the state forest. On a previous visit I met a professional hunter contracted to eradicate wild dogs. On the drive in I had passed some people who were probably preparing for this activity once the sun had gone down.

Sunset at Mt Bindo VK2/CT-003

Sunset at Mt Bindo VK2/CT-003


With HF contacts exhausted, I started to prepare for the following day. Checked out 2m on a hand-held and found I could reach a lot of repeaters including the Mt Ginini repeater west of Canberra, a distance of over 200km. This should be a good way to contact activators – or so I thought. Had some dinner, listened on 80m for a while and then turned in early. Just before drifting off to sleep I heard the sound of my squid pole collapsing. I decided to leave fixing it until the morning. There was a slight possibility that I would wake up for the EU short path opening but I’d made an executive decision not to bother. The wind was strong and blew all night. I was woken up a few times by strong gusts deforming the tent – see the picture! In the end I decamped to the quietness and safety of the car which was not quite as comfortable but better for shut-eye.

Sunrise at Mt Bindo VK2/CT-003

Sunrise at Mt Bindo VK2/CT-003


Overnight there had been no rain, but the wind was getting stronger. The dawn was lovely but it wasn’t long before showers arrived, just short ones with long gaps in between. I reset my antenna on the squid pole and changed its orientation 90 degrees to favour the ACT. Checking the email over breakfast there were many messages on the adverse weather in Canberra. Heavy rain had fallen there overnight and discussion raged over whether to postpone or cancel the SOTA Party. There was a decision to delay the start and make a further assessment of the weather. After 2 hours with further rain arriving, the event was cancelled. I was already set up and ready to go so that wasn’t an option for me 🙂

Luckily, the Canberra weather did clear up a bit and some hardy operators ventured out in the rain and activated some summits. First morning contact was with Roald VK1MTS at One Tree Hill VK1/AC-035 on 40m. I had spotted and called on 6m SSB and 10m SSB with no result up until then. There was a spot from VK3TST/1 on 52.525MHz FM but the WIA broadcast from Dural was blasting out on that frequency. Note to VK1 ops – avoid 52.525 from 10 to 11:30am Sundays.

Strong northerly wind gust = major tent deformation!

Strong northerly wind gust = major tent deformation!


Just after UTC rollover at 10am a sequence of spots arrived – luckily not the wet kind. Leading the charge were VK3s HRA and CAT on 40m CW and signals were good. Roald then popped up on 10m and I was able to make a S2S contact into VK1 with his 40W registering an S4 on my meter over a 183km path. My 10W gave him a 5×1 signal and it was an easy contact. If only there were more activators! I stuck around listening for all Roald’s callers from VK1. The only one heard faintly was Ian VK1DI. Clearly it helps to be on a summit! A spot did come up for Andrew VK1DA on 10m but all I heard was Roald and nothing on 6m. See the elevation profile from Roald to me in the following picture. The purple oval shows the first Fresnel zone on 28.5 MHz.

One Tree Hill VK1/AC-035 to Mt Bindo VK2/CT-003 elevation profile with first Fresnel zone for 10m

One Tree Hill VK1/AC-035 to Mt Bindo VK2/CT-003 elevation profile with first Fresnel zone for 10m


I stuck around for another hour logging four more S2S contacts. At one point I started to hear a succession of pulses through the radio and wondered whether this was the approach of lightning. I disconnected the antenna and got a big jolt from static electricity when touching the BNC connector. It must have built up on the antenna due to the wind. My radio was sitting off the ground, the feedline was off the ground and there was no earthing so no discharge path. Kite-lifted antennas are recommended to be kept grounded and I wonder if other portable operators ever earth their stations? The KX3 has zero DC resistance between the two legs of the antenna so any static buildup would be summed, yet I’ve never been bitten before. Food for thought for my next activation.

Darker clouds were building and it seemed as though the rain would arrive soon. The tent had been blown dry and I did not want to put it away wet so down it came. Folding up the tent in a gale was interesting, and not successful at all. It wasn’t neat but it was dry. The station came down shortly afterwards and it was spitting with rain when the squid pole was collapsed. Timed that pretty well I thought. A total of 17 contacts including 9 S2S had made for a great activation at Bindo.


When planning the weekend I pencilled in some other summits for activating in the afternoon. These would require a 1 hour walk each way. There was plenty of time to do them but the prospect of bad weather made the idea unattractive so instead of driving there, I drove to the historic town of Hartley and checked that out instead. While there I was able to make 5 chaser contacts, check out the gallery, old pub and courthouse. I was hoping that Nick VK2AOH on the Newnes Plateau nearby would activate on 10m but it did not eventuate so I headed back towards Sydney.

Wollemi National Park VKFF-544

At Kurrajong I stopped at the Bellbird lookout after a 90 minute drive. Weather was fine, warm and clear with great views. The wind had dropped too. Consulting the book of maps I realised I was overlooking the nearby Wollemi National Park. The idea surfaced that it wasn’t too late to do a WWFF activation of the park.

Kurrajong Lookout panorama over Wollemi NP

Kurrajong Lookout panorama over Wollemi NP

The GPS unit with topographic maps was consulted to find the exact location of the park and the coordinates set for navigation. I ended up on a track that weaves into the park and found the fence line that marks the boundary. Luckily this agreed with the GPS. The squid pole was attached to the back of the car and the antenna raised. I set up the LDG antenna matcher inline as well.

This slideshow requires JavaScript.

First problem was that there was very sketchy mobile coverage. Try as I might using the parksnpeaks app there was no way of getting a spot up for my planned activation of 20m. The EU long path was open and I called but had no response. With no spotting ability I jumped onto 7090 and started calling there and got a response straight away from Paul VK5PAS en route to activating a park himself. 23 VK callers followed and one ZL and some of them surprised at the signal strength asked what I was running. Paul came back on after 10 minutes and gave me first contact into the new park he was activating – thanks, Paul! The sketchy track into my location meant I had to close down before dark to allow easy exit. There was no way I was getting on 20m at all, but there were enough contacts in the log already to call it a success. There will be other opportunities to reactivate this park and make 44 contacts.

Thanks for all chaser/hunter contacts and summit-to-summits.
Big thanks to Andrew VK1NAM who organised the event – and was then not able to participate. Mother Nature truly has the final word. Now looking forward to the rescheduled “Mark 2” event on 30th August.


  • First JA S2S contact – with Takeshi JS1UEH
  • 10m S2S contact into VK1 with Roald VK1MTS
  • Surprise 10m contacts from VK2/CT-005
  • Unexpected park activation at Wollemi
  • 12 S2S contacts, 1 park-to-park contact
  • Tent survived the gales without maintenance
  • Winter SOTA Party was a success despite cancellation!

Map of the trip

Winter SOTA Party 2015 trip map

Winter SOTA Party 2015 trip map

Equipment – SOTA

  • Elecraft KX3 @ 10W
  • ZS6BKW inverted Vee doublet on a 9m squid pole
  • 4200 mAh LiFePO4 battery
  • PC headset
  • Quickdome 4-person tent

Equipment – WWFF

  • Yaesu FT-100D @ 100W
  • ZS6BKW inverted Vee doublet on a 9m squid pole
  • LDG Z-11Pro matcher

3 thoughts on “Winter SOTA Party on Mt Bindo 2 Aug 2015

  1. Hi Gerard, a very interesting post. The pictures are great and I like the portable house (tent)! What was most interesting was the static electricity build up and the impact on you. I have not experienced anything like that before although I have operated in the wind on many occasions. Perhaps it was to do with the length of time your antenna was in place? I have never earthed my portable station. I mostly use a resonant antenna and don’t need a coupler. When I use an end fed antenna I use a coupler (fixed or tuneable) and a counterpoise, but no earth. Earthing a portable station is a challenge: hard ground, rocky, extra gear to carry (hammer or axe to drive in a stake) dry ground and time to set up the extra connections. I always use an external connection between my radio and the coupler and just don’t rely on the coax braid to do the job. Well done on a couple of great activations.

    John D


    • Hi John,
      Thanks for your comment. I don’t use a coupler either as most of the matching is done by the transmission line. The static buildup happened when the antenna was broadside to the wind and undisturbed for about 2 hours. The night before, the antenna was more or less parallel with the wind and I didn’t get a shock.
      I agree that an RF ground would be difficult to make on a summit. A DC ground would be a lot easier through a short stake which could be nothing more than a tent peg already in place. This should be enough to bleed off the static. Anyway, I’m still not sure whether the voltage was developed from wind or charged clouds. Perhaps an experiment will be needed on the next activation.
      Gerard – VK2IO.


Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s