Tag Archives: JMMFD

John Moyle memorial field day contest 2014

Wind and rain were the winners and highlights of this event.

To avoid a late start I packed the car on Thursday night and I set off for mount Ginini after work on Friday afternoon. I arrived on site at about 7 pm and put up the tent and the 20m vertical. I had a chat with a few other hams that night and tested out the antenna. A strong contact with a ZL2JBR was particularly encouraging. On the ic703 with 10w output I received very good signal reports.

The second hf antenna, a linked dipole, was set up on Saturday morning. I heard a bleat from SOTAGOAT on the iPhone and found it was my SOTA buddy Andrew vk1nam operating at the south coast about 120-130km away announcing he was calling cq on 28.490. I dropped the dipole and removed the links at the 10m position and walked back to the tent to set the radio on the right frequency. Tuning across the band I found a number of USA stations at good strength. Ok so 10m was in good shape but I had VHF antennas to assemble so I started back out of the tent. Before moving far I had to return to the radio as there was a loud cq call heard from vk1nam on a SOTA peak at the south coast. We had a good contact that surprised us both.

I continued the assembly process with a few breaks to make some SOTA contacts on 40m with some of the regular chasers.

The VHF and uhf antennas went together normally though I had made it more difficult by assembling them on the downhill side of the slope from the mast position.

By the time I was ready to lift the mast up a team of radio club members had arrived Onsite to make adjustments to the repeaters onsite. I asked Matt vk1ma to help with the mast so it was soon up and working.

VHF conditions seemed poor. Signals from vk2rsy and vk3rgl beacons were ok on 144.420 and .530 but neither was at a good strength and their 432.4 signals were weak or unreadable.

The contest got under way at midday local time but the poor weather had obviously kept a lot of operators at home. Progress on VHF was very slow.

One vk3 portable in the voctorian high country was worked on 50, 144, 432 and 1296 MHz. A few others were heard but not worked. Towards Sydney there were several on air and later on Saturday vk1pwe was worked at Mt Coree about 30km north of my position.

Saturday evening approached and the repeater team paid me a visit before leaving for Canberra. They cheerfully told me the forecast was for very cold conditions and possibly snow overnight.

A session on 20m cw and Ssb netted about 35 SOTA contacts running the 703 on battery power. The vertical worked well.

Later some more contacts were made on the VHF bands but generally it seemed like the VHF scores would be very low.

John Moyle Memorial Field day March 2009

For this year’s JMFD contest I thought weather and propagation conditions were fairly bleak.
The weather was wet and windy to say the least.  Many field stations reported having their tents and masts blown down.

The high point for me was working 3UHF on 1296 with only a single 18 el yagi, and barefoot (10w nominal).   The distance was 501 km according to the VK1OD distance calculator, using the VK1DA/p and VK3UHF locations from the VHF Logger.

I didn’t like my chances of having hf antennas stay up and didn’t want to extend the tear down process, so I limited myself to the vhf/uhf bands.  I had a car full of antennas and several extra masts but in those conditions, there is no point in trying to do too much.

The temp in the tent at 5AM Sunday morning was 3.5 C though the official overnight minimum according to BOM was 2C.   No wind gust peak data was available.

Operating techniques and problems observed.

There is a continuing tendency for operators to call and make contacts on only one frequency, 144.150.  Can everyone please tell their club operators that there is no repeater there, they are allowed to move the big knob in the middle of the radio panel.  It is ok, nothing will break, the rest of the band also works for making contacts.  It would be better to train vhf ssb operators on HF so they get to know how to operate on ssb, how to work the tuning knob and how to  tune around the band to find stations to work.  FM channels and repeaters are quite the wrong training ground for SSB but I’m afraid that the FM repeater operation mode (staying on one frequency, as if it is the only conduit to any other station) is the method many operators learn and continue to use.

It is up to the experienced operators to teach new operators better techniques.  I appreciated those experienced operators who I heard requesting a QSY as soon as initial contact had been made.

During the contest I tried many times to make contact with some stations in the greater Sydney and Melbourne areas, whose signals were perfectly readable, but whose operators seemed to want to chat to locals interminably, on 144.150.  There are bonus points for working longer distances and these operators were ignoring those chances.  eg. a contact with another local station is worth 2 points, but a contact with a station 300+ km away would be worth 50 points.  This surely would make it worth listening to a weaker signal.

We should encourage people to operate in vhf events in a manner similar to the HF bands.  Find a clear frequency (within the band plan) and call CQ.  If looking for a contact, tune the band.   If activity is low, don’t move too far from other activity (but be mindful of local interference problems – this is why I qsy 30 kHz up from 150, not just 5 kHz as I might on HF).  If activity is high, move further out.  Give the dx something to tune for.  Don’t clump up and make it impossible!

My QSO tally

All contacts ssb.  These scores are about half the corresponding number from the summer VHF/UHF field day in January.

6m – 9
2m – 54
70cm – 31
23cm – 7
13cm – nil.