Rotator is home brew with a slew drive of 76cm diameter and turns from north +/- 270°, tower is free standing and face width is 50cm at the top section. The 5 Cellflex cables are tied together with ty-raps.
Antennas can be seen on http://www.qrz.com/db/DJ7WW. On my old location I also turned three length of RG218 with its solid inner conductor around the rotator for many years until I moved. 73 Peter -----Original Message----- From: Carl [mailto:[email protected]] Sent: Sonntag, 8. Juni 2014 19:18 To: Peter Voelpel; [email protected] Subject: Re: Topband: Fsj4 series heliax around a rotor What is this antenna, tower, rotator, and cable configuration? Im also using 5 cables and around a Tailtwister rotator. Carl KM1H ----- Original Message ----- From: "Peter Voelpel" <[email protected]> To: <[email protected]> Sent: Sunday, June 08, 2014 10:45 AM Subject: Re: Topband: Fsj4 series heliax around a rotor >I turn 1/2" Cellflex cable which is similar to FSJ4 for more then 30 years > and never had a problem. > On one tower I turn a bunch of 5 cables at once. > > And yes, never damage by critters since using that kind of cable on all > bands, also as feed lines for beverages. > > 73 > Peter > > -----Original Message----- > From: Topband [mailto:[email protected]] On Behalf Of Carl > Sent: Sonntag, 8. Juni 2014 15:33 > To: [email protected]; [email protected] > Subject: Re: Topband: Fsj4 series heliax around a rotor > > More of a topic for a VHF/UHF forum where the question comes up often.. > > I use that coax on the mast and to power dividers and out to individual > yagis but it certainly is not meant to survive long around a rotator. > There > I use LMR400UF and into a 50-75 Ohm coax line transformer into .75 to 1" > 75 > Ohm CATV hardline for 144 MHz and higher. > > Another line transformer converts back to 50 Ohms in the house to keep the > several Bird 43 line sections and elements happy. > > Carl > KM1H > > > ----- Original Message ----- > From: "Jim Brown" <[email protected]> > To: <[email protected]> > Sent: Saturday, June 07, 2014 11:09 PM > Subject: Re: Topband: Fsj4 series heliax around a rotor > > >> This would be a natural topic for Tower Talk. Access via contesting.com >> >> 73, Jim K9YC >> >> On 6/7/2014 7:03 PM, Bill Wichers wrote: >>> I'm thinking about replacing the lmr400 with fsj4-50b heliax since I >>> have > >>> several thousand feet of that on a reel. I'm also thinking that the >>> corrugated copper shield will resist critter damage better than the >>> braid > >>> in the lmr400 cable. >> >> _________________ >> Topband Reflector Archives - http://www.contesting.com/_topband > > _________________ > Topband Reflector Archives - http://www.contesting.com/_topband > > _________________ > Topband Reflector Archives - http://www.contesting.com/_topband _________________ Topband Reflector Archives - http://www.contesting.com/_topband
