Wow!! Those instruments are EXPENSIVE. Guess I'll have to rely on signal reports. Or maybe I can find a local service that can test for me. Thanks again. I appreciate the help.
John -----Original Message----- From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of wd8chl Sent: Thursday, May 08, 2008 3:59 PM To: [email protected] Subject: Re: [Repeater-Builder] Re: antenna question John Transue wrote: > I'm afraid there is no easy way to evaluate an antenna except from > signal reports. Even if you have a field strength meter, which I do not > have, the reading would only be relative except on a calibrated test > range. > > Thanks for sharing your experience with me. > > John A true Frequency Domain Reflectometer (such as the Anritsu or Bird line) will show whether there is a problem with an antenna or feedline at RF frequencies. Unlike a TDR, which sends a DC pulse down the feedline, an FDR sends pulses at the RF frequency if interest, and will tell if there is a bad spot in the feedline, how far it is up the line, or if it's antenna itself. <http://www.us. <http://www.us.anritsu.com/products/ARO/North/Eng/Handheld-Cable-and-Ant enna-Analyzer---Site-Master.aspx?cat=1&cat2=2&cat3=24&cat4=0> anritsu.com/products/ARO/North/Eng/Handheld-Cable-and-Antenna-Analyzer-- -Site-Master.aspx?cat=1&cat2=2&cat3=24&cat4=0> <http://www.bird- <http://www.bird-electronic.com/products/product.aspx?id=500> electronic.com/products/product.aspx?id=500> __________ NOD32 2918 (20080303) Information __________ This message was checked by NOD32 antivirus system. http://www.eset.com
