@yahoogroups.com
Subject: RE: [Repeater-Builder] RG21AU CABLE
At 09:26 PM 24/03/2010, you wrote:
Doug,
From what I have found, RG-21A/U cable is 53 ohm impedance, 0.339 outer
diameter, double silver-plated copper braid shields, and a solid center
conductor of high resistance wire. The dielectric
At 07:00 PM 26/03/2010, you wrote:
I have finally tracked down a copy of the original RG-21A/U specification,
and have posted it in the Files section of this Group, in the Coaxial Cable
folder. RG-21A/U became official on 07 September 1955, as MIL-C-17/14.
Then, RG-21A/U was replaced by RG-222/U,
The high resistance wire is nichrome.
As I recall its attenuation is around 20 dB/100ft at 2m. I built an
attenuator using it about 35 years ago. It handled the maximum power
rating of the coax as long as the first 10 ft from the input was well
spread out to prevent build up of heat.
There
At 06:42 AM 25/03/2010, you wrote:
The high resistance wire is nichrome.
As I recall its attenuation is around 20 dB/100ft at 2m. I built an
attenuator using it about 35 years ago. It handled the maximum power
rating of the coax as long as the first 10 ft from the input was well
spread out to
Can someone tell me what the characteristics of this cable are. I tried google
and it didn't seem to know.. I sort of think it might be a lossy coax but
not sure.
Thanks
Doug
On Wed, 24 Mar 2010, Doug wrote:
Can someone tell me what the characteristics of this cable are. I
tried google and it didn't seem to know.. I sort of think it might be
a lossy coax but not sure.
http://www.rfparts.com/coax_specs_rg.html
--
Kris Kirby, KE4AHR
Disinformation Analyst
At 08:35 PM 24/03/2010, you wrote:
On Wed, 24 Mar 2010, Doug wrote:
Can someone tell me what the characteristics of this cable are. I
tried google and it didn't seem to know.. I sort of think it might be
a lossy coax but not sure.
http://www.rfparts.com/coax_specs_rg.html
--
Kris Kirby,
-Builder] RG21AU CABLE
At 08:35 PM 24/03/2010, you wrote:
On Wed, 24 Mar 2010, Doug wrote:
Can someone tell me what the characteristics of this cable are. I
tried google and it didn't seem to know.. I sort of think it might be
a lossy coax but not sure.
http://www.rfparts.com
8 matches
Mail list logo