Hi,
I really enjoy my Mark V Field and it does have one quirk. I can get on 20 meters and the SWR is 1.3 or less EXCEPT on 14.152. At that frequency it jumps to 1.8 or 1.9 at 14.152. Everywhere else it’s fine. I was thinking better coax like ABR would help. Any suggestions or advice would be appreciated.
73 Emmett KZ5I
@Emmett_Bean
I am not sure coax is the issue. The issue is not the radio but rather the swr in the antenna. It appears that your antenna is cut for the CW portion of the band or slightly longer than the phone portion. For lower swr in the phone portion, you will need to trim the antenna slightly for shorter length at that higher frequency. I would recommend you use an antenna analyzer to measure the swr over the entire band and adjust the antenna to the frequency where you want it optimumized…be it for CW, FT-8, or phone. SWR varies across the band for each band. Also height, grounding, or surrounding objects may affect the antenna’s swr over a particular band or set of bands. An swr 1.8:1 is a good swr. No antenna is going to be 1:1 everywhere. I don’t believe you have a significant problem. I would not recommend changing anything.
I also have a Kenwood TS-930SAT connected to the antenna and it works perfectly no tuner needed. I suspect it’s the radio.
73 Emmett KZ5I