Sorry for being a few days behind on e-mail, but...don't those gas tubes need replacing eventually? Maybe after 8 years, they've given all once too many times to stay on the job. 73, Paul, AE4KR
_____ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of wa5luy Sent: Tuesday, April 01, 2008 8:25 AM To: [email protected] Subject: [Repeater-Builder] Static on grounded feed line system. Our repeaters are located on a 200 foot self supporting tower at the top of a 1200 foot mountain. Anytime there is a storm with in 50 miles we get a lot of pulsing static on the 2 meter repeater which is a Micor. This is not noticeable on the 440 repeater. We hear this when the receiver is open from a signal and when the repeater identifies with the receiver squelched. The antenna is a DB 224 fed with 7/8 hard line. The tower is self supporting. All this was installed by a professional tower company. The tower is about 8 years old and appears to be well grounded. The 7/8 hard lines outer shields are grounded to the base of the tower then continues 30 feet to the inside of the building. There are gas tube protectors between the feed lines and duplexers. My question is grounding the outer shield to the tower a good practice? Also any other suggestions as to where to look for this problem.
