Tag Archives: vk1/ac-043

VK1 SOTA 2nd anniversary 1st Feb 2015 at Mt Stromlo

In 2014 the VK1 SOTA group proposed a BBQ and joint activation at Mt Stromlo on 1st Feb, to celebrate the first anniversary of SOTA in VK1.  On the day the weather was very hot and the event was called off.

This year the group again decided to have a BBQ at Mt Stromlo, with a joint activation to provide contacts with the summit.  The plan was to have either a lunch or evening BBQ and set up a few antennas to allow the group to make radio contacts.

Towards the weekend, it was clear the weather this year was not going to be hot, instead it was likely to rain during the afternoon.  Several of the group were unable to make it due to conflicting social engagements so the remaining hopefuls decided to make it a 4pm start and hope for the best re the weather.  That turned out to be a mistake as the weather was moderately clear during the day but towards 4pm it looked more like rain every minute.

23cm band

I had borrowed a 23cm fm mobile rig from Compton VK2HRX who was keen to get chaser points for 23cm and was visiting Canberra that day.  So I wanted to make at least a few contacts on 2m FM and on 23cm FM. On 23cm the simplex frequency is 1294.0 MHz.

I arrived on the mountain earlier than 4pm and spoke with Paul VK1ATP on 2m FM soon after.  Simon VK1FAAS emailed the VK1 SOTA group suggesting it looked like a cancellation was going to be necessary and I agreed with that as the weather certainly did not support the event we had hoped for.  However after some initial thunder and rain visible to the south, it appeared that the main body of rain had passed us by, so I decided to set up the 23cm antenna and the borrowed 23cm fm radio. Paul had arrived on summit by then and was able to observe the 23cm contacts.

After making 3 contacts on 23cm I was looking for a 4th contact so as to qualify the summit on that band.  I monitored 2m fm in the hope that someone would call me there offering a contact on 23cm.

HF contacts

With the rain apparently having passed and no apparent imminent thunderstorm, I decided to put up the HF antenna and see how badly the bands were affected by the nearby storms.  At this point Paul was tempted to do likewise, but after considering his wife and kids he decided against this and departed, wishing me well on HF.

Once I got the antenna up, 40m sounded ok and after I fixed my antenna (again), prompted by Matt 1MA who thought I was not strong enough at his location about 10 km away, I made 19 contacts on 40m including an S2S (summit to summit) contact with Kevin VK3KAB and Glenn VK3YY.  During this period the rain started in earnest and I covered myself as well as the radios with a second tarp.  Weird sitting in the rain under tarps talking on the radio.  Why didn’t I take a tent…

The radios under the tarp.  The logbook with wet pages.  It was only just legible the next day for typing up the log. Radios under the tarp

20m and 12m, ssb and cw

Running out of contacts on 40m I then decided to look at 20m and higher bands.  At this point I also decided to send an email to the VK1 mailing list asking (begging) for anyone with 23cm gear to call me on 146.5 as I wanted a 4th contact on 23cm.

Having moved the HF antenna to 20m by disconnecting the two links I spotted myself on 14.310 and called cq, which resulted in 3 contacts into South Australia (VK5).  I did not receive further replies so I looked higher in frequency.  On 24.9 MHz I heard a strong KH6 (Hawaii) calling CQ on CW and I thought I should at least try a contact.  I received a good (579) report from the KH6 which was great as the antenna was still linked for 20m.

The 4th contact on 23cm

Before finishing the KH6 contact I heard Jayson VK1JA calling me on 2m fm.  I asked him to stand by a minute while I completed with the KH6.  When I went back to Jayson he said he was receiving me well and wanted to try 23cm.  We then made a good contact over about 15km to his location in Tuggeranong.

After completing with Jayson I removed the 12m link on the HF antenna and made another contact on 24.9 MHz CW with a Japanese station.  These dx contacts were completely unspotted as I was answering their CQs. Their power levels were most likely at least 100 watts or 10 db more than my IC703’s 10 watts, and possibly even higher.

As an anniversary event it was a fizzer but I got some satisfaction from making the 4 contacts on 23cm and handing out some points to SOTA chasers.  Also gained some S2S points from working VK3KAB and VK3YY.

 

SOTA activation at Mt Stromlo, Canberra – 22nd March 2013

I was running late for this activation and had not been up to the mountain for quite a few years.  In fact I had not seen the level of destruction by the 2003 bushfires, I might have postponed seeing that because I had heard and read about it.

The mountain has a restaurant on it which is apparently open at night.  There are sometimes stargazing events open to the public.

Access to the summit is limited by a security gate which is closed to uphill traffic at 6pm.  That gate is a fair way down from the summit so if you can go a bit further uphill it will save a lot of walking.  I parked just below the gate and walked from there.  It took me about 25 mins to get to the area I operated from, which was on the side of a fenced water reservoir.  I only used 7 Mhz ssb and 14 MHz CW for this activation.  I had about 10 contacts on 7 Mhz and then about the same number on CW on 20m, including contacts into Germany, Finland, the UK and New Zealand.

Signal reports received on 20m were low and I need to improve my signal strength on this band.  I have a few ideas I need to try out.  The best simple low antenna for dx contacts is a vertical, but it needs an effective ground radial system to be efficient.  I am probably going to try using 3 elevated radials, about 1m above ground.  The squid pole is a good support for the vertical radiator and as it only requires 5m of vertical radiator, the radials can be almost 2m above ground, further reducing ground losses.

On this activation I found I was being attacked by mosquitoes especially once it got darker.  I had not had trouble with these on earlier activations and my fellow SOTA activator Andrew VK1NAM also had lots of mossies on Black Mountain this evening.

No photos as I got there too late.

Closed down after the contact with ZL1KLP at about 7:45 local time, quite dark by then. Have to make the most of daylight saving while we still have it.  DST end date 7 April 13.

I have disabled comments as I was receiving no comments from fellow amateurs but dozens from spammers with automatically generated inane comments and links to irrelevant and usually offensive websites.