Don, Wayne:
Do you have the schematic of the sideband
filter you could send to me? I'd love to run it
through an analysis program to see the
frequency response.
- Jim Tonne W4ENE
__
Our Main Website: http://www.amfone.net
AMRadio
nothing was posted--need to resend
Jim
- Original Message -
From: "Sara & Wayne Steiner"
To: "Discussion of AM Radio in the Amateur Service"
Sent: Thursday, June 24, 2010 12:55 PM
Subject
Hi Don
I also have those R9 ssb articles and have been tempted to see if I could
successfully duplicate it. I have a number open 1920s AF transformers for
rewinding for the filters..To many projects. It might be fun to put a 1933
ssb rig on the air. A mid 30s Radio News has a receiver artic
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Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/
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I believe that SSB was in use even before 1920. The Bell System used SSB in
FDM Mux
equipment (C-carrier, etc.,) in the "10's" (1915 and later). This was
between 4.5 Khz
and 60Khz. As FDM technology improved the frequencies in use increased into
the megahertz
range. I have some modern FDM
> From: "Larry Szendrei"
>>> There have been some interesting cases with short loaded antennas
>> in the BC band, the bandwidth has occasionally been so narrow that the AM
>> sidebands become attenuated! Not going to see that effect in the amateur
>> bands unless someone is running an antenna on
nter,
-Larry/NE1S
> - Original Message - From: "Larry Szendrei"
> To: "Discussion of AM Radio in the Amateur Service"
>
> Sent: Tuesday, June 22, 2010 12:19 PM
> Subject: Re: [AMRadio] Antennas
>
>
>>> There have been some interesting cas
way TV
does!! Bernie
- Original Message -
From: "Larry Szendrei"
To: "Discussion of AM Radio in the Amateur Service"
Sent: Tuesday, June 22, 2010 12:19 PM
Subject: Re: [AMRadio] Antennas
>> There have been some interesting cases with short loaded anten
-
From: amradio-boun...@mailman.qth.net
[mailto:amradio-boun...@mailman.qth.net] On Behalf Of D. Chester
Sent: Tuesday, June 22, 2010 10:36 AM
To: amradio@mailman.qth.net
Subject: Re: [AMRadio] Antennas
> There have been some interesting cases with short loaded antennas
> in the BC ban
> There have been some interesting cases with short loaded antennas
> in the BC band, the bandwidth has occasionally been so narrow that the AM
> sidebands become attenuated! Not going to see that effect in the amateur
> bands unless someone is running an antenna only a few feet long!!
Correct. T
he antenna end. 80
has been so noisy lately that I have about given up. Bernie W8RPW
Original Message -
From: "D. Chester"
To:
Sent: Tuesday, June 22, 2010 11:35 AM
Subject: Re: [AMRadio] Antennas
>> There have been some interesting cases with short loaded anten
> There have been some interesting cases with short loaded antennas
> in the BC band, the bandwidth has occasionally been so narrow that the AM
> sidebands become attenuated! Not going to see that effect in the amateur
> bands unless someone is running an antenna only a few feet long!!
> Bernie W
One of the challenges of AM is that because the power is spread
amongst carrier and two sidebands the power transfer from the rig to
the sky has to be maximized in order to have quality QSOs as opposed
to "Sorry OM dinner bell, gotta go."
Ur Carolina Windom is too low, especially at the ends where
in the
70 foot level between the trees. Here it is at 30 feet, no tall trees, and
works ho-hum. Any antenna is better than no antenna.
Don W4BWS/HC4
From: Brian - KF5CCN
To: AMRadio@mailman.qth.net
Sent: Mon, June 21, 2010 7:56:30 AM
Subject: [AMRadio
ent: Monday, June 21, 2010 8:56 AM
Subject: [AMRadio] Antennas
>I have a Carolina Windom Dipole I use on AM and SSB, oriented with ends N/S
>at about a 30 deg. downward slope and ends 4 ft. above ground. I get good
>reception and coverage all around the compass. But on AM I seem to be w
I have a Carolina Windom Dipole I use on AM and SSB, oriented with ends N/S at
about a 30 deg. downward slope and ends 4 ft. above ground. I get good
reception and coverage all around the compass. But on AM I seem to be week on
AM toward Dallas and Oklahoma. I "boom in" on 75 meters in Dallas, O
ops all UV.
Also, never liked the thought of Acetic acid around
coax braid.hi
73 es GL
de AD5HR
Jon
--- On Sun, 10/18/09, Edward Swynar wrote:
> From: Edward Swynar
> Subject: Re: [AMRadio] antennas
> To: "Discussion of AM Radio in the Amateur Service&q
M Radio in the Amateur Service"
>
> Sent: Sunday, October 18, 2009 10:57 AM
> Subject: Re: [AMRadio] antennas
>
>
>> Eddy,
>>
>> I had wondered why no one had mentioned a simple tube of silicone from
>> the hardware store and was about to but you took the
Eddy VE3CUI - VE3XZ
*
- Original Message -
From: "Rob Atkinson"
To: "Discussion of AM Radio in the Amateur Service"
Sent: Sunday, October 18, 2009 10:57 AM
Subject: Re: [AMRadio] antennas
> Eddy,
>
> I had wondered why no one h
Eddy,
I had wondered why no one had mentioned a simple tube of silicone from
the hardware store and was about to but you took the words out of my
mouth. I was starting to think there was some gotcha associated with
it that I didn't know about, but I've been using it outside with no
problems. May
t; the steel
capacitor, & aged it by a quantum leap!
Used outdoors & in the open, however, I've never had that problem...
~73~ de Eddy VE3CUI - VE3XZ
- Original Message -
From: "BILL GUYGER"
To: "Discussion of AM Radio in t
I buy a product that is sold at a local mobile home supply store. It's
the same thing as coax seal. It comes in a 1 inch by 25ft long roll.
$16.00, it's also a little thicker than coax seal. Works very well.
Dave W9WRL.com
Jim Whiteley wrote:
> Hi Paul,
>
> Tacky tape is almost like Coax Seal i
o remove the connector.
Bill AD5OL
From: Jim Wilhite
To: Discussion of AM Radio in the Amateur Service
Sent: Saturday, October 17, 2009 4:12:49 PM
Subject: Re: [AMRadio] antennas
Hi Paul,
Tacky tape is almost like Coax Seal in appearance and consistency. The
stuff I have is 1/2" wide and
Hi Paul,
Tacky tape is almost like Coax Seal in appearance and consistency. The
stuff I have is 1/2" wide and probably near 1/16" thick. I found this
by accident as well and did a search for it based on the name on the
cardboard roller at the center of the roll. Here is the website for it
s
Jim,
You've done well to get to your antenna maintenance before it's so cold the
soldering gun won't even work (has felt like that anyway).
I googled the "Tacky Tape" to see if it's the same stuff I'm thinking about,
and nothing came up to match what I also will pass along --
"Rescue Tape" is
For almost all the past week it has been foggy, drizzly and dark here so
I spent most of my time in the shack working on things indoors. One
thing I did is hook my antenna analyzer to the feedline of each of my
antennas to see how they might perform this winter season. I do regular
maintenanc
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