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Re: Indoor antenna question
It makes no difference to the performance of the
antenna if the wire used is coated or bare. However,
if you're using it inside then you really want that
nice plastic covering! Also same with the wire
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Scott Erwin <n4zou@...>
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#243
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Re: Indoor antenna question
Hi Jeff: You may use your wife for a form to hold the 1,000 feet of number
12 awg solid wire, and place it next to the window closest to your Collins.
You'll get great reception with no hassles from
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c.e.boyd
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#244
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Indoor antenna question
A couple general antenna questions - is bare wire to be preferred to
plastic coated wire? Thicker wire better than thinner? I own a
Collins 51J-3. I'm using about 20 feet of ordinary speaker
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Jersey Jeff <jwewers@...>
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#242
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Re: RG-8/RG-213 voltage rating
I have used RG213 to approximately 10,000 volts to feed power to the anode choke of a driver stage in a high power transmitter operating in the HF bands. At this voltage level, the breakdown points
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Paul Lynas
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#241
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Re: New file uploaded to loopantennas
Ditto! In 6 weeks you will have enough oxidation built up around
those joints that the transmit efficiency will drop like a stone.
Connection resistance on transmitting loops needs to be held to an
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qrpbear
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#240
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Re: Degaussing coil
Jerome,
I have been using degaussing coils as VLF (sub 30KHz) antennas for
reception of sferics. They work very well down low. With the ~0.047
uF input capacitance of my AD620 preamp the coil
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qrpbear
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#239
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Re: New file uploaded to loopantennas
Congradulations, it looks great! I like your method of non - soldering the cables, unfortunately, it would not last long around here where I live by the seaside, I sprayed clear protective lacquer
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Michael Stevenson <portstevos@...>
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#238
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Re: RG-8/RG-213 voltage rating
One problem with using RG-8 or RG-213 coax as a
capacitor and lowers the voltage rating is the shield.
When it's cut you have many sharp copper wire ends
that greatly increases the probability that
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Scott Erwin <n4zou@...>
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#237
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Re: Photos posted
Here is a link to a PDF file producer with no
advertisements and is freeware. There is a beg screen
for support and donations but it does not impact the
program features at all. You get professional
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Scott Erwin <n4zou@...>
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#236
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New file uploaded to loopantennas
Hello,
This email message is a notification to let you know that
a file has been uploaded to the Files area of the loopantennas
group.
File : /magloop4.exe
Uploaded by : aa0ni
By
loopantennas@...
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#235
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RG-8/RG-213 voltage rating
I read at this link...
http://www.thewireman.com/coaxdata.pdf
... that the voltage rating for RG-8 and RG-213 is 4000V and 3700V. I
don't know if anyone else can verify these facts.
If this is the
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aa0ni@...
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#234
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New file uploaded to loopantennas
Hello,
This email message is a notification to let you know that
a file has been uploaded to the Files area of the loopantennas
group.
File : /40m compact loop photos/40m loop.zip
By
loopantennas@...
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#233
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Re: Photos posted
Thanks!
FYI, if anyone wants to post as a PDF as Dan is doing, there is a
free/shareware tool to create PDFs from any program. It works by
selecting it as if it were a printer, and then just
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Steven Greenfield AE7HD
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#232
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Re: Photos posted
When I get a chance to, I'll create a Word document and print it to a PDF file
for everyone's perusal. I'll include a list of parts (and what I paid for them)
and the detailed photos (enlarged).
-
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Daniel Reynolds <aa0ni@...>
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#231
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Re: Photos posted
Nice!
However, as I keep saying, in the Photos section only the uploader
and moderators can see the full size version. All anyone else can
see is max 300x400. Why? Because Yahoogroups wants you to
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Steven Greenfield AE7HD
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#230
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Re: Photos posted
Let me repost this link... (the paranthesis was making it into the last link I
posted)
http://groups.yahoo.com/group/loopantennas/
I welcome any questions or comments. If you try to build a similar
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Daniel Reynolds <aa0ni@...>
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#229
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Photos posted
If you go the the yahoo groups webpage
(http://groups.yahoo.com/group/loopantennas/) and click on Photos -
I've posted some photos under album "AA0NI".
There's detailed descriptions with each photo
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aa0ni@...
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#228
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More about the loop
I've got some photos I'll be posting this morning of the loop.
I raised it up 2 ft last night so that it wasn't leaning against the
fence... but instead it was supported by the fence (it's a
By
aa0ni@...
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#227
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Re: 2nd attempt at mag loop
At 01:33 PM 10/12/04 -0700, you wrote:
>Hi Jim,
>
>One of the goals for this loop was to avoid soldering (for those who are averse
>to torches - for me, I'll use one, but I want to try to keep costs
By
Jim Dunstan <jimdunstan@...>
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#226
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Re: Degaussing coil
Took a 27 inch Sony apart and the coil is something like 4 feet
across. Hooked it up to my Sony ICF2010. First thing I noticed was
very little background noise. Second there was QRM on 160 meters,
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Bruce Carter
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#225
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