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Re: Wideband loop amplifier in the presence of strong AM and FM broadcasters ?
Hi Carlos,
I'm assuming that?the 2 x 2N2222 type design is similar to the M0AYF circuit in the files section
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Martin - Southwest UK
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#12187
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Re: Small magnetic loop - Interesting Safety concerns
No matter what the antenna, the Safety concerns are the same. So basically, the article says to stay an ¡°Occupational safety distance¡± of at least 11 feet from a 100 watt 10-40M loop that is 3
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Steven Deines
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#12186
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Re: Wideband loop amplifier in the presence of strong AM and FM broadcasters ?
Hi Andy,
I did not express myself properly. It is just about RX.
I have a G5RV antenna I have been using for receiving purposes, no TX
here. I can detect strong intermodulation products when
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Carlos
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#12185
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Re: W2LI magnetic loop operating info
Hello,
I do not own a W2LI mag. Loop, however, I do own a Chameleon F Loop Plus. I also build mag. loops for multiple or different frequencies. Anywhere from 80 to 2 meters. I have experimented in
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Tom Lambert <toml2273@...>
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#12184
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Re: Wideband loop amplifier in the presence of strong AM and FM broadcasters ?
Transmitting or receiving?
I guess you want to filter the AM and FM signals for when you are
receiving, in which case the loop's impedance may be less important than
the input impedance of your RX.
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Andy
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#12183
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Small magnetic loop - Interesting Safety concerns
Perhaps before using a small magnetic loop antenna for transmitting you should review this
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Dr Jim Kennedy
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#12182
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Re: W2LI magnetic loop operating info
Jim,
Type in *W2LI Magnetic Loop Antenna *on your browser, whereupon you will gleam a lot of info on the W2LI *QRP MLA*, that is made and sold by Tri County Radio Association, which has on its
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James La Frieda
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#12181
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W2LI magnetic loop operating info
I recently acquired a W2LI magnetic loop. Does anyone out there have any operating or usage suggestions or experiences you could share with me. I operate mostly QRP.
72/73, Doc K2PHD
FN20qv
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Dr Jim Kennedy
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#12180
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Wideband loop amplifier in the presence of strong AM and FM broadcasters ?
Hi,?
This has been discussed before, but I can not find a definitive answer within the old messages.?
I live in Canberra (VK1) in between the AM and the FM broadcast transmitters. I can not think
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Carlos
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#12179
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Re: Compact ferrite loops for Portables?-FARMERIK
Farmerik, I'm really liking this new loopantenna group location. I noticed everything transferred including all files and pics.You can see my stacked toroid pics on page 3 of pics. It truly shines on
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lowalacrity
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#12178
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Re: Congratulations on the move!
I posted about making the move. I got positive feedback. I moved this and several other Yahoogroups.
This group is meant to replace the Yahoogroup loopantennas. I've set the other one to not allow
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Steven Greenfield AE7HD
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#12177
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Re: Congratulations on the move!
There are littery thousands of photos on Google images....? perhaps one from there as long as it is not copy righted.
73 Rod W8GRI
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poikaa3
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#12176
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Re: Congratulations on the move!
Folks, I don't understand. Is this a spin off group or the
continuation of the one on Yahoo? I found myself subscribed to a new
group without really knowing what is going on.
I don't have a problem
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Ottavio Caruso <ottavio2006-degen@...>
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#12175
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Re: Congratulations on the move!
Yes, please, suggestions for the group image are welcome.
--
Steve Greenfield AE7HD
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Steven Greenfield AE7HD
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#12174
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Re: Congratulations on the move!
Yes. Well done!
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Andy ZL3AG
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#12173
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Re: 40m portable loop?
Hello.
Have you looked at Chameleon antenna web page?
They have a starter set up or kit.
It has a dual section cap with a 3 1/2 turn attachment, a approximate 144 inch length of LMR400 coax and 4 uhf
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Tom Lambert <toml2273@...>
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#12172
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Re: 40m portable loop?
You might take a look at the RML line of Alpha Loop systems for ideas here http://alphaantenna.com/index.php?main_page=advanced_search_result&search_in_description=1&keyword=RML
Although these are not
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Steven Deines
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#12171
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40m portable loop?
I built a 10' circumference loop made of 3/8" copper tubing some time ago, and only used it once at 5w with a lossy capacitor.? Very hard to tune.
I'd like to try using coax as a capacitor (as with
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Allen Woolfrey
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#12170
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Congratulations on the move!
So you guys finally made the jump.? I did with my groups 6 months ago and never looked back.? ?I think you will be very happy with the performance on groups.io, and the support is top-notch.? If
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Bruce Carter
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#12169
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Re: Compact ferrite loops for Portables?-FARMERIK
Greetings FARMERIK, I have, before me an antenna consisting of a
30inch length of plastic electrical conduit, inside? each end of the
conduit a 9inch ferrite rod is secured. Over each rod a coil is
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Margaret and Max
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#12168
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