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Re: Nested Loop Antenna March QST
One of club member built a similar multi-band loop out of fiberglass poles and tie wraps. It performed very well and did many QSLs on field day. 73, Alan - W6ARH Sent: Sunday, February 16, 2014 8:28
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Silverfox
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#10298
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Re: Loop Antenna Balun
It may be true that HOAs can seem to be overbearing. But everywhere I know of the homeowner is informed of the HOA before buying the home. That said, one of the great things about a loop antenna is
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gnuarm.2006@...
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#10292
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Re: Loop Antenna Balun
HOA = Home Owners Association, also may be known as the Nazi Architectural Control Committee, etc. that often abitrarily and strictly enforces silly regulations and rules created usually by a small
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osage_archer
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#10291
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Nested Loop Antenna March QST
N3FJP & son had built a multiband nested loop...looks interesting...and a good read! http://www.nxtbook.com/nxtbooks/arrl/qst_201403/index.php http://www.nxtbook.com/nxtbooks/arrl/qst_201403/index.php
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kb8nty
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#10295
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N3FJP's Nested Loop article 2014 March QST
Check out N3FJP's Loop antenna article in the new 2014 March QST issue. Don't have it yet, it's also now on ARRL website. Interesting read... -73- Ross -KB8NTY- www.rossradio.net
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kb8nty
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#10294
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Re: Loop Antenna Balun
Harry, I have used an untuned loop about 90 feet circumference ( a two turn loop sides 6 metres x 2 metres, hung under the eaves at this QTH.) The plane of the loop North/South used it to listen to
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Margaret and Max
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#10290
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Re: Loop Antenna Naivete
It is fascinating that I would compare any antenna, except in an antenna shoutout, to a loop. I find that fascinating because no where in the design of a small Magnetic Loop Antenna will you find the
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JOHN CEDARHOLM
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#10289
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Re: Loop Antenna Balun
Harry, Might you not be better off with an easily homemade multiband dipole, cut and orientated to the frequencies/regions of your preference? Such an antenna is easily hidden, too and its
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JIM HANDLEY
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#10293
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Re: Loop Antenna Balun
A 100 foot long receive loop makes no sense. Receive loops need to be less than 1/3 wavelength at the highest frequency, which would limit you to 3 MHz. You should probably be looking at a Pixel or
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Richard \(Rick\) Karlquist \(N6RK\)
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#10288
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Loop Antenna Balun
I live in an area that has HOA rules against outdoor sw antennas. I think my best bet is a stealth loop antenna laid directly on the roof. It would be trapezoidal in shape and about 100 feet long. I
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Harry Holden
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#10287
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Re: Measuring very small AC resistances
Forget about this handbook. What you want to do to measure a low impedance is to use a TWO port network analyzer (not a one port NA or an impedance analyzer) and connect the ports to an SMA tee.
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Richard \(Rick\) Karlquist \(N6RK\)
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#10286
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Measuring very small AC resistances
I was perusing Chris Trask / N7ZWYChris Trask's paper "A Simple Varactor-Tuned Loop Antenna Matching Network", wherein he makes the sensible statement "...and the designer should always rely to
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John Maxwell
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#10285
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Re: Alpha Loop
I bought a Pixel RF-PRO-1B a couple of months ago and put it up on my roof. I use it with a QS1R software defined radio. I am very happy with it. For me, it works as well as a resonant dipole at any
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Greg Ella
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#10284
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Re: Alpha Loop
Is the reason that coax is worse than soft aluminum (not rigid aluminum) to build a magnetic loop antenna from because there are thousands of lossy connection points as the braid of the coax weaves
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JOHN CEDARHOLM
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#10283
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Re: Alpha Loop
Silver isn't particularly soft and brass isn't that hot in the conductivity stakes. And we're not discussing pure aluminium, we're talking aluminium alloys. It's all a negotiation between
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Andy Gardner <ceo@...>
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#10282
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Re: Alpha Loop
forgot the link http://www.pixelsatradio.com/product/shortwave-magnetic-loop-antenna/
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tomdoubts doubting <dstremme@...>
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#10281
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Re: Alpha Loop
ANYONE PLAYED with a RX only Loop? Feedback - (Curious) about the Pixel RF-PRO-1B ?36" Rx only Magnetic Loop..
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tomdoubts doubting <dstremme@...>
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#10280
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Re: Alpha Loop
Here are a couple of links I found right away: http://www.tibtech.com/conductivity.php http://www.tibtech.com/conductivity.php
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JOHN CEDARHOLM
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#10279
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Re: Alpha Loop
Loved your point about resistance, resistance, resistance so much that I called Alpha Antenna to ask them what the correlation between the chemical properties of their specially selected aluminum had
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JOHN CEDARHOLM
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#10278
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Re: Loop Antenna Naivete
The transmitting loop will have a very sharp resonance when tuned to your frequency. It will act as a good pre-selector. In fact, you can tune your loop by listening for an increase in noise as you
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Richard Jones
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#10276
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