Id have to say that if the wrong ports on the duplexer were used the results would have been far worse. But the swr was checked between the transmitter and the duplexer and it was flat, beyond the fact that new labels had been made and stuck on the duplexer at the appropriate inputs. Kinda hard to mess that up but I acknowledge the possibility. - M
From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Milt Sent: Wednesday, July 30, 2008 7:45 AM To: [email protected] Subject: Re: [Repeater-Builder] Curious Situation No, you just got confirmation that you had the duplexers close to spec, and the cost is not out of line for labor and test equipment if everything was done correctly. You only tuned one piece of the entire system however so there may be other things lurking in the background. Something in one of your reply posts is raising questions however: "The antenna is a HyGain V-3 ( this is a temporary antenna that was available for the testing phase ) ground plane which has 2 sets of radials. The antenna is fed with ½ Heliax. The antenna is 30 to 40 feet horizontially separated and 20 ft vertically. ( Not a lot of separation to be sure but again the install at this location is temporary while working the kinks out..). " What are you referring to as the "seperation"? Antenna to repeater? And the "dumb question" You did verify that all the connections went to the correct ports? Milt N3LTQ ----- Original Message ----- From: Michael Ryan <mailto:[EMAIL PROTECTED]> To: [email protected] Sent: Tuesday, July 29, 2008 11:37 PM Subject: [Repeater-Builder] Curious Situation Rbers, I posted a note very early this week about my looking for a someplace to get a 220 duplexer tuned in the TAMPA area. Having not much luck I contacted a local MOTOROLA shop and paid $95 for the service. The receipt returned with the cans indicates that the specifications published by WACOM are very close. Having tuned these merely to incoming signals before, peaking them while the repeater is still in a testing mode, seemed to return decent results but the tune-up was thought to be a better idea. Not so . Todays tune-up hardly was worth the wait or the price based on the results. While a 5 watt HT 10 miles away could work the repeater, now 25 watts from a roof top antenna is now just about full quieting. Fifteen watts does not make the repeater through the same roof top ground plane. Does logic dictate that we go back to seat of the pants tuning and cast fate to the wind? - Mike __________ NOD32 3301 (20080727) Information __________ This message was checked by NOD32 antivirus system. http://www.eset.com
