Even better is to use S Meter dropdown in the KIWI extensions menu.... it gives a strip chart style presentation that can be configured to easily show small differences in signal levels, far easier to watch and more accurate than the S meter display.
On Wed, Jan 18, 2023 at 10:27 AM STEVE MCDONALD <[email protected]> wrote: > Pete, I’ve found the best way to A/B antennas in real time is to listen on > one of the hundreds of online Kiwi SDRs …. You can flip from one antenna to > the other instantly and the difference is readily apparent. RBN can never > be A/B ‘d instantly. > > Steve VE7SL > > > ----- Original Message ----- > > > This would have been more helpful to Ignacy before the second antenna > went up, but taking off from Stan's question ... if you want to get a > quick quantitative comparison between two transmitting antennas, you can > use the Reverse Beacon Network. Go to > https://reversebeacon.net/main.php. Transmit a CQ or test (CQ or TEST > at least twice, and your callsign 3-4 times) and note the spots that > result. QSY at least 0.3 KHz and repeat. You should see spots from > some of the same stations, and you can readily tell (in dB) which > antenna was stronger. You can do the same trick to compare receiving > antennas, without QSYing, but you must wait 10 minutes before the system > will accept a second spot of the same station from you. > > 73, Pete N4ZR > > On 1/18/2023 11:31 AM, Stan Stockton wrote: > > Ignacy, > > > > Is your thought that you are a few dB weaker based on sone kind of A-B > test of the two antenna setups or just that you feel weaker? > > > > 73…Stan, K5GO > > > > Sent from my iPhone > > > >> On Jan 17, 2023, at 9:44 PM, Ignacy Misztal<[email protected]> wrote: > >> > >> I have a 100 ft tower with jk mid tri 40 on top. When shunt fed, it was > >> pretty competitive on 160. Recently the antenna seems to be a few db > >> weaker. The only change was adding another beam at 60ft. Could it have > had > >> an impact? Adding the beam only marginally affected the match. > >> > >> Ignacy NO9E > >> _________________ > >> Searchable Archives:http://www.contesting.com/_topband - Topband > Reflector > > _________________ > > Searchable Archives:http://www.contesting.com/_topband - Topband > Reflector > _________________ > Searchable Archives: http://www.contesting.com/_topband - Topband > Reflector > > > WEB - "The VE7SL Radio Notebook": http://qsl.net/ve7sl/ > > VE7SL BLOG - "Homebrewing and Operating Adventures From 2200m to > Nanowaves": > http://ve7sl.blogspot.ca/ > _________________ > Searchable Archives: http://www.contesting.com/_topband - Topband > Reflector > _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
