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wxsatuser last won the day on December 17 2017

wxsatuser had the most liked content!

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About wxsatuser

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    Blue Straggler

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    Weather satellites
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    West Sussex
  1. If you transmitting chokes will most likely be very useful, stops coax from radiating, can help with TVI and RF in the shack. On VHF may help with a better antenna pattern. As to SWR, may be not but you will want an efficient antenna and an efficient antenna may not have 1:1 SWR If transmitting then under 2:1 is best as modern transmitters tend to limit output past 2:1.
  2. Nice lot of detail in the data but colour needs looking at.
  3. Jerry Lodriguss has a downloadable book for beginners, $40 not to bad for a lot of info. http://www.astropix.com/bgaip/bgaip.html
  4. Coaxial dipoles are nice, simple and cheap. Going back a bit I used to use them on 50/70MHz just strung across loft joists. The 70MHz one allowed good contacts with 2.5watts down to Gibraltar during the summer Es season. Here is a photo of my SWR meters and main rig Icom 7100, shack a bit messy trying to install shelves for the satellite gear. HF is bottom one VHF on top, just visible 35Amp psu to far right. Spent Saturday morning messing with the QO-100 receive setup. Turned it on and the passband was really weird, thought my SDR had gone kaput then found out the passband has been increased from 250KHz to 500KHz, teach me to keep up with the news. New 500KHz passband, centre frequency is the old band edge PSK beacon at 10489.750GHz BTW my setup down converts from 10GHz to 144MHz and is GPS locked, very stable signal. BTW this is the QO-100 receive setup, temporary mess waiting for new shelf space. Far left GPS reference, middle DX Patrol downconvertor, not shown modded LNB on dish an right is the SDRPlay RSP1A.
  5. Around Atik either side there is LDN 1468, 1470, 1471, 1472. Atik is the top star of the bright pair in the centre. To the right of Atik is IC 348 bluish nebulosity. LBN 785 bottom right of centre blue cone shape.
  6. Think this is the only one supports PS CC but there is a smallish fee, think about about 25 quid in uk. Fitsplug
  7. I'm not a fan of long wires as such, hard to fit anything very long in my garden. If you have not try a tuned counterpoise for each band, it might do the job. Give the RAE a go, nothing to lose, it's not that hard with a bit of swotting. There is nothing to lose, way back in the 80s when I got interested I actually did a course at college to do the RAE. I helped a friend, who thought he was dim get through, we spent friday evenings going over the course. BTW my friend was'nt dim he just needed some extra help.
  8. If they are not earthed or bonded and there is a fault on the equipment the current has to flow you if you touch it. If there are no extraneous metal objects in the out building there is nothing to bond. Extraneous means in contact with ground or buried in the ground.
  9. Brilliant Tom. More than just a W.
  10. Here in the UK for TT systems the out building will/should have an earth rod. Depending on the ground more than one rod or ground mat might be needed. If there is any extraneous metal in the out building, could be water pipe or other grounded metal, may be a pier, this is bonded to the rod. RCDs should be fitted in the out building to make sure of tripping. Anyway, as long as local regs are followed should be ok.
  11. I thought domestic supplies in Denmark were TT, where there would be an earth rod anyway. If you have an out building that will need a rod as well as you found out. Here in the UK the circuits in the house and out buildings should be protected by RCDs in a TT system.
  12. Have tried a few wire ants last being a multiband sloper but not to good. Have gone back to a multiband vertical, Hustler 6 bander and have installed many wire radials. Still need to add more radials but it works very well on all bands. Heard in New Zealand recently running 50watts on 40metres plus most of Europe, South America, Japan and eastern USA All the little flags with 21 on them are where my signal was heard.
  13. Been meaning to get one myself but I have an MFJ antenna analyser plus three Daiwa SWR/power meters that cover 1.8MHz to 2.4GHz.
  14. This is where we have to be careful with metal objects buried in the ground and metal appliances outside, especially on a TN-C-S system. If the supply is TN-C-S, neutral is the earth and the if the neutral gets broken on the supply most likely RCDs will not work as a balanced current can still flow to earth. Yes you can get away with it but what happens when a fault occurs, it may be never but...... Main bonding should go right back to the earth entry, yes you could put a rod in but depends on the ground etc.
  15. Needs bonding 6mm minimum on a TN-S or 10mm on a TN-C-S system, preferably 10mm anyway.
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