I have a few questions regarding the Faraday loop method of feeding a magnetic loop antenna. 1. I understand that the loop needs to be about 1/5 of the...
8044
notareallyreal
Dec 2, 2010 7:09 pm
Hello ! Has anyone experience on band pass filters for Medium Wave band ? I think that some times very strong local transmitter can spoil your whole medium...
8045
David Taylor
r0339
Dec 2, 2010 11:16 pm
I just downloaded the Ham filter design program Elsie to the files section. Download it, install it, and have a blast making all kinds of LC filters. Dave ...
8046
la7sja
Dec 3, 2010 6:31 pm
1. Impedance 2. The Faradays loop only picks up the current in the tuned loop (i.e. primary the loops tuned frequency all others are more shielded). 3....
8047
Chris Trask
chris3trask
Dec 3, 2010 8:51 pm
... Now that is a combination of language competency that I would not anticipate. Norwegian and English yes, but how did you end up being competent in Thai? ...
8048
Steve Ellington
n4lq
Dec 4, 2010 4:06 am
Has anyone ever tried using a roll of copper flashing to make a loop? I've been thinking about using PVC pipe to make the loop then wrapping the flashing...
8049
brian nsl
brian.nsl...
Dec 4, 2010 9:23 am
Steve, Before you commit expensive copper flashing to the loop project try cooking foil ( in the UK the Turkey grade is heavier ). I wrapped a 2 in dia PVC...
8050
brian nsl
brian.nsl...
Dec 4, 2010 10:32 am
Steve, I omitted to add that I have also replicated the foil antenna project by rolling the foil lengthways and feeding it down the inside of the tube, this...
8051
bm40g
Dec 4, 2010 2:09 pm
... Hi Steve, The conductivty of various metals can be much less than pure copper. It does not take much impurity to drop an alloy down to 50% of the...
8052
Steve Ellington
n4lq
Dec 4, 2010 3:12 pm
Graham Thanks for the information. I looked at his slug tape antenna and now I wonder if anyone has tried a helical loop. One could make the loop from PVC and...
8053
Steve Ellington
n4lq
Dec 4, 2010 3:46 pm
Another source of copper tape: ...
8054
John Seager
jseager2009...
Dec 4, 2010 4:23 pm
Steve and Brian, Cooking foil does have the disadvantage for a loop of having a higher electrical resistance. I have found copper tape of the sort sold here...
8055
Graham
ve3ghm
Dec 4, 2010 4:24 pm
There is a copper foil with an adhesive backing available called "Slug Tape". Apparently slugs don't care for copper and you would put this around your garden...
8056
Graham
ve3ghm
Dec 4, 2010 4:24 pm
Slug Tape was something new to me until I stumbled across the posting on the antenna. A quick search using Google and on eBay turned up a indicated that it ...
8057
la7sja
Dec 5, 2010 11:56 am
From working in Southeast Asia for many years, and a Thai wife and two sons, who all speak Thai at home. 73 de LA7SJA MScEE...
8058
neilbellgroups
Dec 5, 2010 9:10 pm
This is a mint condition Quantum Phaser, includes the AC power adapter, and a D-Cell battery power pack that allows operation in the field where no AC power is...
8059
brian nsl
brian.nsl...
Dec 6, 2010 8:56 am
John, Thank you for the comments. From the various adverts for copper slug tape it says ' apply to a clean surface ' so I gather it to be self-adhesive ???? ...
8060
John Seager
jseager2009...
Dec 6, 2010 12:53 pm
________________________________ From: brian nsl <brian.nsl@...> To: loopantennas@yahoogroups.com Sent: Monday, 6 December, 2010 8:56:00 Subject:...
8061
Collins, Graham
planophore
Dec 6, 2010 1:05 pm
Slug tape with a serrated edge. That is interesting. Perhaps an easy way to make the antenna more broadband? I have just recently started to read a bit on the...
8062
thinkdx
Dec 8, 2010 1:48 am
Paul Cianciolo, W1VLF is a very useful resource when it comes to highpass, lowpass, and bandpass filters. He builds and sells very high quality units. If you...
8063
John McKee
radioranger2155
Dec 8, 2010 10:04 pm
Hi everyone, Just recently joined this group and was wondering if anyone has built the active receive loop by Des, M0AYF? I wanted a small low noise loop ...
8064
Chris Trask
chris3trask
Dec 8, 2010 10:44 pm
... Do you have a URL for information about this antenna? Chris Trask N7ZWY / WDX3HLB Senior Member IEEE http://www.home.earthlink.net/~christrask/...
8065
Graeme
spid3r44
Dec 8, 2010 11:38 pm
For Chris http://www.pm.keirle.com/3_radio/hf_loop_ant/hf_loop_ant.htm Graeme...
8066
dx11
ts6023
Dec 9, 2010 12:05 am
... Chris Trask<< I have it under construction for quite some time now... http://www.qrss.thersgb.net/active-loop-receiving-antenna.html ...
8067
dx11
ts6023
Dec 9, 2010 12:33 am
I discovered that the first link is not working any longer. Some time ago I copied the webpages into a Word file. So if anyone wants to have it I can send it...
8068
neilbanera
Dec 9, 2010 1:14 am
Chris, I think these are the URL's: http://www.pm.keirle.com/index.html http://www.pm.keirle.com/3_radio/hf_loop_ant/hf_loop_ant.htm Neil...
8069
Chris Trask
chris3trask
Dec 9, 2010 1:34 am
... Yes, that's it. I've seen this design many times. Quite simple and fairly popular. Chris...
8070
Philip
p19547ct
Dec 9, 2010 2:03 pm
Hi Which is the strongest reception direction of a circular loop... Face on to the source or edge on to the source? Thanks Regards Philip...
8071
STEVE MCDONALD
cqer01
Dec 9, 2010 5:34 pm
Philip - maximum pickup will be along the plane (edge) of the loop with minimum pickup broadside (facing) the loop. Steve ... [Non-text portions of this...
8072
Philip
p19547ct
Dec 10, 2010 10:35 am
Thanks Steve Never done much with loops so looking forward to making an amplified non tuned one for my Softrock Ensemble RX set up... Regards Philip...
