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Re: [RFI] Choke questions

To: rfi@contesting.com
Subject: Re: [RFI] Choke questions
From: Dave Cole <dave@nk7z.net>
Date: Wed, 22 Jan 2020 08:19:21 -0800
List-post: <mailto:rfi@contesting.com>
Thank Jim,
I do care if it came from China, do you have a US based cable you know of? I want to build a few of Jim's chokes, so I want decent cable. No ends needed.

73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources

On 1/22/20 7:31 AM, Gedas wrote:
What kind of length(s) are you looking for and do you want connectors on the end?

Many of the RG-400 coax are made in China, there are some US based companies like Harbour Industries etc that specialize in Teflon based coaxial cables but they are going to be more expensive then the asian made cables.

If you do not care if it came from china have a look at:

https://www.ebay.com/itm/RG400-100FT-50-ohm-Double-Shielded-Coaxial-cable-with-Tan-FEP-Jacket/222770013314?hash=item33de20a482:g:Y-QAAOSw~4hbw63R

Gedas, W8BYA EN70

Gallery at http://w8bya.com
Light travels faster than sound....
This is why some people appear bright until you hear them speak.

On 1/22/2020 10:09 AM, Dave Cole wrote:
Anyone know where to get RG-400 for a decent price?

73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist
ARRL Asst. Director, NW Division, Technical Resources

On 1/22/20 6:59 AM, Gedas wrote:
Another Teflon based coax similar to 50-ohm RG-142 and 75-ohm RG-179 is 75-ohm RG-187.

Gedas, W8BYA EN70

Gallery at http://w8bya.com
Light travels faster than sound....
This is why some people appear bright until you hear them speak.

On 1/22/2020 1:35 AM, Jim Brown wrote:
On 1/21/2020 8:02 PM, John K9UWA wrote:
Is there a 75 ohm equivalent to RG400 coax?

Not that I know of, although are there's at least one sort of like RG142. KZ1W sent me several miniature coaxes to evaluate for chokes for TX 4-squares, the most useful of which seems to be RG179. It's addressed in the Cookbook.

73, Jim K9YC
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