![]() The crossover frequency is all wrong for anything but a SAT/CATV combo. They're not splitters, they're diplexers. "They make splitters for satellite that are optimized for 900-1500 MHz." Try it first - for $8.00 you can't go wrong. Just food for thought since there's a ton of questions here on using splitters. That's not too surprising, but fortunately I just listen to that system occasionally (and it's not a big deal to bypass the splitter!) With the splitter, I can barely lock onto the control channel. The only negative: there is one 800 MHz analog trunked system that I could pick up with no problem. In particular, the mil air band seems unaffected.I can hear the same mil air transmissions that I have been listening to for a long time. Receive performance on these bands is still the same when using the splitter. I listen to the AM airband, VHF high band (public safety, marine), mil air (225-400), and 400 MHz public safety. There's a hamfest coming up this weekend where I plan to get the right connectors and minimize my adapter-fest. It's just what I had on hand after buying the splitter. ![]() For the time being, I have a non-optimal mishmash of F, BNC, and PL-259 adapters, and F and BNC cables that now hook everything together. I am happy to report that the splitter works well. to feed my antenna signal into both scanners. I recently bought a cheap Radio Shack CATV splitter: From there I use adapters to plug my antenna into either my BC780 or Icom R-7000. ![]() I know some people feel that some Radio Shack products have quality issues but I have also used the 15-2186 amplified antenna for around ten years with no issues so you can't always be swayed by the brand name one way or the other.I have the Diamond D-130J Discone with a SO-239 connector, running about 90 feet of RG-8X mini cable ending in a PL-259. It might have not been in either the on or off position or just needed some cleaning spray for the contacts but after that was taken care of, it worked fine. When I first tried it, I thought there was an issue as VHF stations had lower signal levels and even though my Clearstream does not have a VHF element it picks up those stations without any issues so I suspected the FM trap switch. Using the signal meters on my Sony tv and Digitalstream 9950 box, I can say that both amplifiers produce similar results but for weaker stations, the Radio Shack works better for me. I keep the boost switch off and the gain control at the maximum and that has worked best. If you have that ON and the gain control is anywhere past a quarter turn, it will overload the tuner. One thing to watch out for is the boost switch. I'm not sure if it's the higher gain or something else, but I have gone back and forth with both models and the Radio Shack is better for my situation. Both have worked well but for weaker signals, I have found that the Radio Shack 15-321 works better. I have used the 15-321 as well as the RCA TVPRAMP1R(Z) with a Clearstream 4 antenna. The 1500526 inside unit has a more rounded shape compared to mine and the outdoor part looks a bit wider on the newer model but is hard to tell from the pictures I've seen. The layout is the same with the two outputs and gain control with boost switch. Click to expand.Radio Shack made a few versions of these amplifiers and I am using the 15-321 model which has the same layout as the 1500526 unit which is apparently the newer one.
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