Flexible coaxial cable jackets are easily damaged by careless handling, by mice and other vermin, by improper installation on a tower, or by not bonding the coax to the top and bottom of the tower which makes it susceptible to pin hole damage during lightning strikes.
73 Frank W3LPL ----- Original Message ----- From: "Jim Brown" <[email protected]> To: [email protected] Sent: Tuesday, December 1, 2020 8:29:10 PM Subject: Re: Topband: FW: CQWW a bust this year On 12/1/2020 10:00 AM, Michael Walker wrote: > - How old are your feedlines? Are 100% sure they are as good as the day > you installed them? Another urban myth -- coax is degraded only 1) by the intrusion of moisture into the dielectric, which occurs at poorly installed or poorly weatherproof connectors or with physical damage to the outer jacket; or 2) UV breakdown to a non-UV-resistant jacket. > - Noise -- did you know that 80% of the low band noise is in your own > house - fix it as it isn't going to fix itself and don't be so sure to > blame someone or something else until you confirm it. YES! There's an app note for this on my website that ran in NCJ several years ago. k9yc.com/publish.htm 73, Jim K9YC _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
