Ham Radio
Experiments & Fun With Simon M0YKS
Yorkshire UK
The Sunday Afternoon 2 Meter Loop Project
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Watch to see how I spent my Sunday afternoon making a simple full wave 2 meter Delta Loop and then make a 200 mile QSO with MM0GPZ/P in Scotland on 144.285 usb.
Dead jezluz Love the mike stand , and is that a hiel mike?? I am going to have to try that loop not to big and easy to erect. I have got myself a HF mobile antenna . and am going to try and get the swr thing sorted , its one of them that you move the whip and the jumper lead. works fine at home just got to try it mobile now .. 20 mtrs is fave at the mo......might try some sstv .. now were's me little eepc :)
Na Then! I its a Heil, Goldline with filters. Another 2e0dog wheel and deal, had a while and it works nice.
Will make you a Mic stand but you may have to paint it yourself ;-)
I know the mobile antenna you have, they look pretty good? Should be the dogs doo daas on 20M I hope to bump into you on there soon!
The little loop on the vid surprised me with its good ssb performance, well worth a go!
I should be playing around with the radios tommorow night, I will give you a shout on 145.500. Been busy tonight fettling Kawasaki with some stainless shiny bits that I made today-Yeah!!
Today I managed a nice QSO with Tom ZD7X who is located at St. Helena which is quite a distance away from my location. I managed to work Tom ZD7X with a 5/9 report operating my FT-767GX with my home brew 20m delta loop assisted with the MFJ-969 to tune the antenna with 50 watts on 12 meters. 12M is rarely open and I have only had a few QSOs on this band so I guess the new Cycle has begun at last! Good DX de 2E0HTS 73
This Antenna design was one that I used about 4 years ago, it worked exceptionally well on 80m and 40m. The size of the antenna makes a Half wave length on 80 meters, and with the traps a half wave on 40m with a SWR (standing wave ratio) of 1:1-1.5 across both bands. It worked well also on 20m with the use of an A.T.U (antenna tuning unit). I made my version of this antenna using 3mm multi strand copper cable which I left covered by the PVC insulation. The traps can either be home brewed using some 40mm diameter plastic drain pipe and winding wire around the pipe approximately 10 turns, then connected in line after the 10 metre lengths. Or the alternative is to purchase some commercially made 7.1 MHz traps, and fit them in line the same way. The antenna can be fed with 50 ohm coax with a home brew balan or again a commercially purchased balan. The wire lengths of the dipole are 2x 10 metres and 2x 6.7 metres as shown on the diagram above. This antenna can be mounted quite low to the gr
I came across a simple delta loop design courtesy of dxzone found on the net some time ago and have been planning to give it a go for a while. This weekend I had a couple of hours spare, so I decided to give it a go using some 2mm multi strand wire cable, a dipole centre and a mixture of 75 ohm and 50 ohm coaxial cable. The delta loop is supposed to be resonant on 20 meters but I found it to be a little high so at present I am tuning the Loop with my mfj-969 which copes extremely well. The resonant frequency is 13.2 MHz at the moment so the next chance I get, I shall shorten the overall length making sure that each of the three sides are still equal in length, and hopefully adjusting the antenna for maximum performance ATU free for 14.2 MHz. I believe the miscalculation in the resonant length is probably down to the fact that my wire is covered in the plastic sleeving from the manufacturer which always effects the swr as I have noticed in past experiments with dipoles you always get sl
Comments
Love the mike stand , and is that a hiel mike??
I am going to have to try that loop not to big and easy to erect. I have got myself a HF mobile antenna . and am going to try and get the swr thing sorted , its one of them that you move the whip and the jumper lead. works fine at home just got to try it mobile now .. 20 mtrs is fave at the mo......might try some sstv .. now were's me little eepc :)
Will make you a Mic stand but you may have to paint it yourself ;-)
I know the mobile antenna you have, they look pretty good? Should be the dogs doo daas on 20M I hope to bump into you on there soon!
The little loop on the vid surprised me with its good ssb performance, well worth a go!
I should be playing around with the radios tommorow night, I will give you a shout on 145.500. Been busy tonight fettling Kawasaki with some stainless shiny bits that I made today-Yeah!!
73 Good DX and catch you L8R,
Si