Monday, October 21, 2019

Butternut vertical antenna trouble

I have a butternut HF6V vertical antenna that until recently was working very well. It was installed many years ago with only occasional issues- bad capacitor, broken guys,etc. I had noticed in the last several months not as many signals but since I’ve not been very active on the air it really hadn’t pushed me to really investigate.
 With winter fast approaching in the northland, I decided to check this antenna out a little more. Imagine my surprise when the antenna analyzer showed very high SWR and the ohmmeter basically shows open..this summer has been very wet and consequently I neglected trimming a perimeter around the base of the antenna like I normally Would.
  After trimming around the base I found the shield ground broke plus several secondary grounds to the metal base and ground rods  also broke.the most obvious problem and the reason for the damage was the base,which is a 20x24 metal base was sinking and covered with mud/grass from some animal which had dug underneath it and deposited all the wet ground on top of it.
  This location is very good for a ground mounted vertical because of the swampy location which makes it all the more surprising an animal would try to burrow underneath..Maybe when it was drier?? Whatever- after some excavation and filling in I was able to repair all the bad ground connections and test first with the ohmmeter then analyzer. It was now a happy working vertical antenna again with lots of signals .
 My winter operating now can happen on not only this antenna but several others which I also tested.
73- Tim

Monday, July 8, 2019

13 colonies special event 2019

I was able to be on air for the first and last days but had limited time for each day.This is the 8th year I've participated and as always it was fun chasing the stations around the bands. The first day I contacted two stations and managed 6 more on the last day. I imagine I missed some good propagation days but as always the fourth of July week is very busy for Me.Conditions seemed fair but when I was able to be active,the higher bands were not open to Northern Minnesota.A typical occurance! I did not manage to contact any of the bonus stations but at least on 20m I was able to hear the GB13COL station from England although He was extremely light and the Eastern wall of operators prevented Me having a QSO opportunity.
   This special event is always fun and well run and I will donate and send for the certificate.Would be nice having a clean sweep but need to spend more time-maybe next year!
    73's--- Tim