2009年11月18日 · "high SWR at radio only when amplifier turned" With an amplifier in-line you check SWR after the amplifier with an external meter. Do not use the radio's SWR meter. Problem solved.

2011年7月10日 · I recently bought a dipole antenna from Ebay. It is very well made and I hooked it up last night and the skip came rolling in. But my problem is that I have high SWRs. I have it hanging horizontally from two trees only about 7 feet high. I know it gets out locally for about 4 …

2022年1月7日 · SWR antenna tuning. From what I read for amps the SWR should be less than 1.5 going in. I see many talk about where the SWR Meter goes and most say by the radio or after the amp or both. If I am wanting to get low SWR into the amp wouldn't I want the meter just before the amp? I usually tune antenna swr with the radios meter with amp inline and ...

2005年4月15日 · Anyone know why and if it is normal for the swr to go up when amp is on and in use? I have an ameritron al-811 and the swr on the radio is 1.2 to 1 when talking on radio alone, when I switch on the amp and talk the swr swings up to 2.0-3.0 to 1. I …

2007年7月10日 · Good afternoon. When I use my Boomer 250 to drive my Heathkit SB-200, I have no problems with SWR. But when I use my HF rig (Yaesu FT-ONE) to drive the Heathkit, the SWR between the radio and the amp is too high (2.5). What could be the problem? Another way to say it > - CB radio + Boomer...

2016年7月22日 · I've seen SWR spike up by about 0.3 because a car passed over 30 feet away when my VNA was scanning my antenna on my SUV. I have also seen spikes in SWR because birds fly by the antenna when running such scans. Changing SWR in a mobile environment is not anything new, and is always happening weather you realize it or not. The antenna is reacting to the changing environment, which is constantly ...

2013年7月28日 · Some amplifiers and I believe HF's have a feature that bypasses the amp in the case of high swr. If I'm correct some if not all newer transceivers also have some type of protection in the event one's swr is too high. My questions is what does it take swr wise for an amp or HF to completely...

2009年2月15日 · getting this reading from swr meter in radio. meter is accurate because i checked the reading (before amp was installed) against paradynamics meter and reading was the same. also something interesting--when i check the swr using radio meter, i dead key and get swr of 2.5 but when i whistle, it swings down to an acceptable swr. this is puzzling : (

2014年3月30日 · Since HF is pretty much all SSB, and you can't take an swr reading in SSB mode (no carrier), at this point I'll switch over to FM mode and drop my power level to 15ish watts.

2017年5月29日 · From the amplifier's output you can feed that signal to the antenna, OR, to a watt meter to be measured (input of the watt meter/SWR meter) which then comes out to go to the antenna from that meter's -output- connection.