You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.
I originally suggested a couple of Hy gain SPT 500's, but due to commercial site requirements, the site technician suggested some antennas without radials, so the GM it was. I still think we should have used Penetrators.
Since it's a 10M repeater, and 10M cavity filter/duplexers are rather large, and very hard to find, it's a split site system. An individual GM at each site. Receive site is 29.520, and the TX is set for 29.620. SWR at 29.620 is 1.5:1. Good enough.
I use my OPTIMA Mk1 extensively on 10 and 12M. No problems tuning in any sideband station, as the clarifier has a wide range. It is a superb radio for what it is and I find it superior to the Magnum 257. The continuous tuning is a lot easier, and the 5 khz increments are useful on...
I just received this from my local AnyTone dealer. He claims that it will arrive in 3 weeks and he has 100 on order.
My only beef is that it doesn't go down to 24.000 MHz.
We have a 10M repeater on 29.620. I bought two GainMasters for the repeater (split site). They don't quite tune up up there, so we're using two small home-made 10M tuners. We needed the GM's because it's a commercial site and antennas with ground planes won't fit there.
I have no idea how the Imax 200 works without radials, unless it is a delayed feed single extended Zepp. According to "The Imax 2000 EXPOSED!" adding ground planes to the Imax improves it's performance significantly.
Nevertheless, Having compared both the Imax (with radials) and the...
Excellent question! To tune up the antenna, you need to be as far away as possible from any metal objects in proximity. When I tuned up my new SPT-500, I couldn't get it to tune up on 28.800 MHz. Determined that it was too close to my tower. Moved it about 20 feet away and all as good...
This forum does not allow a single user to have more than one username. If anyone wants to change their username contact an admin and it will be done. Multiple accounts belonging to the same member will be deleted without warning.