Topband: Top Band Antenna
Thanks to all who responded to my enquiry...an Inverted 'L' was the most common advice so will give that option some serious thought. Further question: should a ground rod be used as part of a radial system, or should it be treated separately.? I have seen various arguments for and against, wondering what the group thinks on this. Thanks, Rodger/GM3JOB _ Topband Reflector Archives - http://www.contesting.com/_topband
Topband: Top Band Antenna
Gentlemen, I have the following which I would like to turn into a topband antenna if possible. My mast is approximately 40 feet high and there is rotor cage with a 10 foot stub mast, on the stubmast I have an 8 el.log periodic and above that a rotary dipole for 30/40m. I attached a drop wire at approx. 38 feet high, I grounded this wire and tried to grid dip the wire plus mast, all as per ON4UN's book USING THE BEAM TOWER AS A LOW BAND VERTICAL the results were zilch, nadda nothing at all, no dip anywhere on any band. I used the MFJ 259B with the GDO accessory. 1. Am I doing this all wrong..highly possible.!! 2. Is the mast not high enough to be used for top band.? I am totally out of my depth here.so any guidance would be much appreciated. Many thanks, Rodger/GM3JOB _ Topband Reflector Archives - http://www.contesting.com/_topband
Topband: FW: Front End Saver for Top Band
From: gm3...@hotmail.com To: g...@yahoogroups.co.uk Subject: Front End Saver for Top Band Date: Thu, 29 May 2014 18:45:14 + Has anyone built the front end saver by KD9SV or the OK1RR version which uses 12 volt reed relays. I am attempting to build the 12v version on veroboard and have the following query, when the unit is supplied with 12v relays 1 2 are energised, when the PTT is operated relays 2 3 are energised basically relay 2 remains energised at all times, is this the correct sequence of operation? thanks Rodger/GM3JOB _ Topband Reflector Archives - http://www.contesting.com/_topband
