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My aerial was just a dipole at 20 feet, hope to improve in the near future.
A change of PC has reduced the noise floor on 2m and 4m considerably my old PC raised the noise floor by about 10db, I think a lot of the rubbish was being radiated from an HDMI monitor and cables. The laptop I use now has made a big improvement.
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I traced my not being heard well on TX problem to the dual band yagi I am using. The VSWR on 6m is very good but on 4m it is quite narrow, 1 MHz or so. The minimum is at 70.0 MHz and by the time it has got to 71MHz it is much worse and the losses were too high. I plan to try to move it up to 70.5MHz by shortening the driven element, 3cm should do it. I think we need a new design with a wider bandwidth.
Meanwhile, what about 6m? That should also work. I onw the noise it higher but so is the possibility of Es and potential new records. There is also a lot more power allowed.
Fantastic weather, lots of activity and a microwave contest as well. There was certainly something going on with conditions - some stations were weak, some were strong and there was a dark haze on the horizon for most of the day.
I think a focus on certain bands did help reduce the chaos - stations worked included:
G0UHY - tried on 71 MHz - no go.
G7JTT (40Km) - received my 71 MHz signals after a transmit problem cured itself.
GW8VPG (120Km) - Good signals on 71MHz (10dB MER) and great H265 video quality but rx problems at Shaun's end meant 1 way only.
G0MJW (25Km) - received my 71MHz but I could not see his signals.
G4CPE - tried on 71MHz but no go.
G4FRE (IO82LB) - Dave had his first ever ATV QSO (screen shot below). We tried on Saturday over the  134 Km path on 71MHz and got one way but on Sunday we did 2 way with an MER up to 20+ dB at one point. Almost but not quite equaled the UK record for 71MHz!
G4LDR (IO91GC) - we completed a NB QSO and attempted 76GHz DATV but ran out of time.
Also tried 146 MHz to G4BAO and G3VZV with no success.
I also worked 8 stations on 24GHz NB and 2 on 76GHz NB.
Thanks to all involved - 71MHz does seem to have real potential for long distance working and wondering if I should put it on the mast at home....
Noel - G8GTZ
What was also very interesting was that GW3TKH & G4HQX were on site doing the mm microwave contest with 24, 47 & 76GHz. With my 5.6GHz, that was seven dishes in a row; you can imagine how much interest this generated from the public!
Yes, pity we didn't do it 2 way. Impressive array of dishes and is that an HF whip on the camper van in the distance?
Barry G4SJH was also up at Walbury operating 24Ghz and his gear along with the 76GHz gear is shown below:
I am annoyed that my receiver did not play ball. I am going to spend some time improving this over the next few weeks. I wonder what other people are using to upconvert 4m?