John Popelish wrote:
For the RG58, each Steward HFB143064-300 (sorry for the ridiculous link
length):
http://www.steward.com/web_part_no.a...20Board%20Leve
l%20and%20Cable%20Core%20Products&family=Ferrite% 20Cores%20for%20Cables%
20-%20%20Wiring%20Harnesses%20-%20Connectors&product=High%20Frequency%20
Solid%20Ferrite%20Cores%20for%20Round%20Cables&pr ogroup=1.%20Round%20and
%20Cylindrical%20Cores&part=HFB143064-300
provides about 180 ohms choke impedance.

TinyURL.com is a great resource for condensing very long web links that
might become broken in transit. You only need to copy-and-paste the long
URL into their web page, and "TinyURL" does exactly what it says.

The above example comes right down to:
http://tinyurl.com/n6bt9


--
73 from Ian GM3SEK 'In Practice' columnist for RadCom (RSGB)
http://www.ifwtech.co.uk/g3sek

How do you figure the lower "coaxial sleave" dimentions. My project is
converting/cutting down a old model PD83 (Phelps Dodge brass skirt
coaxial, aprox 50mHz) to 2 meters.

And I did use the ferrite bead on the J pole to cancel out the RF on
the coax, but do not know which core specs.

"Will" wrote:

How do you figure the lower "coaxial sleave" dimentions.

It's usually 1/4WL long. The theory is to turn that 1/4WL of
feedline into a transmission line where the currents on the
outside of the original shield are balanced by the inside
shield on the sleeve which balances the antenna currents.
It functions over a certain single bandwidth.
--
73, Cecil http://www.qsl.net/w5dxp

On Sun, 04 Jun 2006 18:29:11 GMT, "Cecil Moore"
wrote:

....

What's with the HTML format Cecil?

Owen
--

"Owen Duffy" wrote:
What's with the HTML format Cecil?

I've switched over from Netscape to Outlook Express and have
no idea what I am doing. I can't seem to get Outlook Express
to compose anything in Courier fixed font.
--
73, Cecil http://www.qsl.net/w5dxp

Try Tools | Options | Compose | News: Font Settings

"Cecil Moore" wrote in message
. com...
"Owen Duffy" wrote:
What's with the HTML format Cecil?

I've switched over from Netscape to Outlook Express and have
no idea what I am doing. I can't seem to get Outlook Express
to compose anything in Courier fixed font.
--
73, Cecil http://www.qsl.net/w5dxp

"John, N9JG" wrote:
Try Tools | Options | Compose | News: Font Settings

Of course, I have set the font to Courier but right now, even
though I have "Plain Text" selected, the composing font is
Times New Roman. If I select "Rich Text", then it will
compose in Courier but that is HTML. I once forgot to switch
to plain text before sending and it apparently posted HTML.
--
73, Cecil http://www.qsl.net/w5dxp

Cecil Moore wrote:
"Owen Duffy" wrote:

What's with the HTML format Cecil?


I've switched over from Netscape to Outlook Express and have
no idea what I am doing. I can't seem to get Outlook Express
to compose anything in Courier fixed font.


Outlook Express? Say it ain't so Cecil!!


- 73 de Mike KB3EIA -

"Mike Coslo" wrote:
Outlook Express? Say it ain't so Cecil!!

I was running Netscape but Netscape 8.1 doesn't do newsgroups.
Someone recommended Thunderbird. Comments?
--
73, Cecil http://www.qsl.net/w5dxp

:Cecil,

I will start a little long as this is a peimo piece of 2" dia brass.
According to swr-freq by R. J. Edwards, the 2" dia sleave is about 50
ohms
for the 1/4 wave. 146 mhz, 51.1 ohms, jXin 0.0 .

My thaught is with the 1"mast inside of the sleave (insulated and
centered only connected at the top) what does the added capacitance do
to the sleave lenght?

And RFS does not have the old cutting charts for the Phelps Dodge PD83,
I tried that.

"Will" wrote:

How do you figure the lower "coaxial sleave" dimentions.
Cecil Moore wrote
It's usually 1/4WL long. The theory is to turn that 1/4WL of
feedline into a transmission line where the currents on the
outside of the original shield are balanced by the inside
shield on the sleeve which balances the antenna currents.
It functions over a certain single bandwidth.