Tony, a corporate-fed antenna like the 408 will not exhibit downtilt or uptilt when operated out of it's design range, however, it will exhibit slightly less gain.
Chuck WB2EDV ----- Original Message ----- From: Tony Alviar (Home) To: Repeater-Builder@yahoogroups.com Sent: Wednesday, December 31, 2008 8:53 PM Subject: RE: [Repeater-Builder] Decibel Products Antenna website Brian, That I believe (wisco intl) is a reseller. Tesco, Hutton Communications and others resell the antenna. Currently running a DB408-A (450-470) on a ham repeater here in Western PA (443.750-W3PIE) and only thing truly noticed is when comparing to business band repeaters operating same antenna at same level on tower with less power than this repeater is running has further range from the repeater site to distant points. It appears that a downtilt is occuring when operated in Ham Bands. (tower Site for my setup is 985' HAAT when factoring both sides of the mountain in- when looking at the western side of the mountain, HAAT to all points West is closer to 2000' HAAT and covers in excess of 90-100 miles to 100 W mobiles) Use http://awapps.commscope.com/catalog/product_narrow.aspx?id=134 to help search the various antennas from Andew/Decibel Products and review the specs. Hope the info helps. Tony
