LifeofReiley
Well Known Member
Is anyone flying with the RA Miller (RAMI), what was the Antenna Specialist Bent Whip comm antenna AS-AV534? I'm considering this light weight option and would like input on its performance.
Is anyone flying with the RA Miller (RAMI), what was the Antenna Specialist Bent Whip comm antenna AS-AV534? I'm considering this light weight option and would like input on its performance.
Is anyone flying with the RA Miller (RAMI), what was the Antenna Specialist Bent Whip comm antenna AS-AV534? I'm considering this light weight option and would like input on its performance.
Been using these antenna for years now on hundreds of installations and they work and hold up. Never have had to replace one.
Most of the RAMI antennae use BNC connectors. The stainless steel whip antenna which is super cheap is the only model that does not use a BNC connector it also does not work well over the entire frequency spectrum(118-136mhz).
Sam go to the RAMI web site and look for yourself about the various RAMI antennae. All of their anntennae work well if you choose the right one for the application that you want. The stainless whip with no BNC connector was originally used for communications back in the days when the common radio had considerably less channels than 360 or more. If you look at the band width of that model of antenna you will see that it is narrower than the other models. The VSWR of that antenna across the band is 3:1 versus 2:1 with the others. I have install many of these antenna also and they work but not as well on the newer radios. So I don't really understand your comments about my two postings. Many of those rod antenna have been installed and they have more of a tendency to cause interference with other devices because of the higher VSWR. You want as much of the RF energy to be radiated off the antenna as possible. With a high VSWR you will get a lot of RF energy radiated off of the coaxial cable. But what do I know I've only being working in the industry for 45 years.
Sorry Sam for the confusion in my statements. Sometimes installation has a lot to do with how well something works and sometimes a lot of luck. With a high VSWR you never really know where or what if anything may get interfered with. A lot of the newer electronic devices just won't tolerate RF interference and you never know which frequencies may cause the problem. The best is to keep the antenna feed line well isolated from other wiring in the aircraft and the antenna on the belly. The main problem with belly mounted antennae is a lack of range while on the ground especially on tail draggers. The body of the plane makes a good RF shield from the ground stations. You may find that that antenna that you have works better on the lower frequencies than the higher ones above 130mhz. But then again that is sometimes a difficult test to make. As for those that want to spend the extra money on coax use RG400. It won't make a difference in the small runs in the RV's that you would ever notice even if your antenna is mounted in the tail. But the wire is better for shielding and mechanically stronger and won't burn up as fast as the regular coax if you should have a fire.