Tag Archives: VK2/IL-005

Mt Alexandra VK2/IL-005 on 6 Feb 2016

Although I had operated from this site in June 2015 for the VHF field day (and the 6m contacts counted towards the SOTA 6m/10m challenge) I was hoping to increase my “unique callsigns worked” count by operating from this site.  It has a good lookout towards the Sydney area and on a clear day you could probably see the big smoke, if that makes any sense.

So I took my IC703 for its 10w of power on 10m, and the FT817 with its 5w on 6m.  The antennas were a vertical half wave on each band.  The 6m antenna was in the form of a coaxial dipole with the lower end terminated by a resonant choke in the feedline, sometimes called a flowerpot vertical after the mounting method chosen by one of the people popularising the design.  (VK2ZOI)

The 10m antenna was lent to me by Andrew VK1AD, who had two similar versions.  It is a half wave fed by a tapped quarter wave coaxial line, usually called a J pole.  The tap point is at a position where a good match is found to 50 ohms, and the top end of the quarter wave is a reasonable match to the bottom end of the half wave.  This arrangement works fine for low power.

Matt VK1MA had been onsite during the morning and was just packing up when I arrived. We chatted about conditions and how the bands were working, then Matt headed off to his next summit which was Mt Gibraltar on the other side of Mittagong.

So at about 2:30pm I started operating at the Katoomba lookout point on Mt Alexandra.  With several 6m and 10m contacts made during the afternoon it was productive if a bit slow. One of my strategies for finding new contacts was to call on 52.525 FM which has some following in Sydney. I did make one contact that way, but probably did not have enough signal level for the average mobile in Sydney.  Calls via the 6m repeater seeking simplex contacts got no replies. 

On the ssb end of the band, there were several responses to my CQ calls on 50.150 which is supposed to be the calling frequency within VK.  I did call cq on 50.110 and got one reply, and we moved up the band a bit to leave the calling frequency clear.  

On 10m FM I did hear  a Japanese station but my 10w was not making the grade back to him.  The most fruitful mode was ssb on 10m, where I did work several vk4s as well as some Sydney area stations. 

Operating at the picnic table on Mt Alexandra
Operating at the picnic table on Mt Alexandra
I had arranged with my wife to meet her in the car park at about 6pm.  So at about 5:30 I started to roll up cables and put the gear into the backpack.

Walking down a steep section of the track back to the car, I managed to put both feet onto slippery surfaces at the same time, resulting in a probably very funny sight, with me falling backwards onto my backpack, and in the process flinging my hands out and back, to “break my fall”.  That was not a good move.  It didn’t break my fall but came close to breaking a bone.  My right wrist was in some pain and I sat on the ground for a minute or so before I could get up and resume walking.  

I had fractured the radius bone in my right arm, quite close to the wrist.  I ended up being treated by the emergency ward of the hospital the next day, then discharged with my arm in a cast and 6 weeks of relative inactivity ahead.

I can only think about the many times I have been much further from my car or another driver, yet have climbed up and down rocky paths and gravel roads without any mishap.  But any of those places could have produced a similar result.  A sobering thought.

The result of  a few seconds of inattention
The result of a few seconds of inattention

So that ended my activations in the 6m/10m challenge a week earlier than I had expected.

I am now temporarily writing (and sending morse) with my left hand.  My handwriting is not pretty (and my morse is tentative and slow).  I count myself lucky though – this could have been worse.  But my wrist will mend and I will have the use of it again.  Incidents like this make you appreciate having two arms and hands.

VHF/UHF field day at Mts Alexandra and Gibraltar, June 2015

This operation was intended to give me more contacts for the 6/10m challenge while qualifying as an entry in the VHF/UHF field day.

Unfortunately I did not pack the 3el beam for 2m and a third length of coaxial cable.  This limited my 2m antenna options and the range I could achieve.

Radio wise I was in a good position at the “Katoomba” Lookout on Mt Alexandra, just north of Mittagong, south west of Sydney. I could hear and work anyone others were working in the Sydney basin and also could work Geoff vk2ul in Yass and Gerard vk2io who was on various summits in the Blue Mts north of me.  One North Sydney station could be worked easily on 2m and 70cm but while I could hear him well on 6m, he was unable to hear me and gave the (SSB) contact away.

In a surprise Es contact on 6m I did work vk5kv who was s9 on peaks.

Another station called CQ frequently on 6m and was replied to by several others closer to him, but he appeared to receive only very strong signals. He called CQ many times on 6m but never seemed to understand something was wrong. I wondered whether his receiver was faulty or perhaps his antenna system had high losses.

After making about 20 contacts I moved to Mt Gibraltar. Another operator, VK2VOM,  had been working there but had generator problems and was closing down. I was on the air at Mt Gibraltar by 4:30 pm but by then all the other portable stations except for Gerard  vk2io had closed down. After spending 2 hours there and working Gerard on 6 and 2m and making very marginal contacts with Geoff vk2ul on 6 and 2, I was too cold to continue as it was around 2C and I decided to leave even though I had not made enough contacts to qualify the summit for SOTA purposes.

Very disappointed in the low level of activity for the VHF contest.

My gear was an ft817 at 5w running on a Lipo 3s and a LiFePO4 4s battery. At Mt Gibraltar I added a hl66v amplifier for 6m which should have raised my output power to about 30w. Antennas used were a wire dipole for 6m and a quarter wave vertical for 2m. Most of the 2m contacts were actually made using the 6m dipole.



The operating position using a picnic table kindly provided by council.  FT817 radio, iphone, ATU (not used), log book, morse paddle, boxes used to carry the bits in my backpack.  No car access here, so you carry the lot.

IMGP1586s6m dipole just visible (red wires) attached to squid pole.