I am running a low power UHF repeater (MTR2000) for private use. Over the past 4-5 months the performance has been degrading in terms or receiving more noise and static even in fairly near by transmissions. I am pretty sure it is antenna. Although it could be a number of things in the transmission line which I will have to check.
Regardless, I am running a Comet GP-6NC and have had it up for a couple of years now. It is at the top of the tower, but it is only a 50' tower. We get a fair amount of wind in terms of frequency but not strong winds, but the antenna moves a fair amount.
I know the GP-6 is not a particularly good repeater antenna for a number of reasons and my performance degradation matches what I have read about these types of antenna over time.
I was strongly considering the move to a DB-408-B. I have read a lot of good things about them based on historical performance and robustness. The problem is I have now read how the new ones may not be quite as good as they used to be, as well as you apparently can't buy replacement phase harnesses etc.
My first question is has the reliability of the NEW DB-408's really sunk that low or are they still robust antenna? I like the omni coverage of the dual 4 dipole of the DB-408. I am in the south (little to no ice) and not near the coast. So an external harness is not the end of the world. But for what they cost I don't want to mess with the harness going bad in a year or two and then having to buy a whole new antenna. They are not exactly that cheap.
I looked at Sinclar. While I don't mind paying a decent price for a quality long term solution they are about 2x the DB-408, single 4 dipole with somewhat poorer coverage. They might be a bit more than I need given the fairly mild conditions of the location.
So if the DB-408 are not what they used to be, what would be an equivalent/good (in terms of performance) dipole manufacturer?
Thanks
Regardless, I am running a Comet GP-6NC and have had it up for a couple of years now. It is at the top of the tower, but it is only a 50' tower. We get a fair amount of wind in terms of frequency but not strong winds, but the antenna moves a fair amount.
I know the GP-6 is not a particularly good repeater antenna for a number of reasons and my performance degradation matches what I have read about these types of antenna over time.
I was strongly considering the move to a DB-408-B. I have read a lot of good things about them based on historical performance and robustness. The problem is I have now read how the new ones may not be quite as good as they used to be, as well as you apparently can't buy replacement phase harnesses etc.
My first question is has the reliability of the NEW DB-408's really sunk that low or are they still robust antenna? I like the omni coverage of the dual 4 dipole of the DB-408. I am in the south (little to no ice) and not near the coast. So an external harness is not the end of the world. But for what they cost I don't want to mess with the harness going bad in a year or two and then having to buy a whole new antenna. They are not exactly that cheap.
I looked at Sinclar. While I don't mind paying a decent price for a quality long term solution they are about 2x the DB-408, single 4 dipole with somewhat poorer coverage. They might be a bit more than I need given the fairly mild conditions of the location.
So if the DB-408 are not what they used to be, what would be an equivalent/good (in terms of performance) dipole manufacturer?
Thanks