You have to be careful sometimes with what tower and/or antenna companies provide as they might relate to your specific installation. In my case in 2007 with a 19 foot roof tower, the tower manufactu
Here in south Denver yesterday, we got 60-70 MPH winds- a number of us experienced problems from broken rotors to downed verticals. My only problem was my Cushcraft 40M RTD spun about 10 degrees on t
We have a Cushcraft MA8040V with around 50 buried radials. I want to put up a Cushcraft MA160M vertical in the opposite corner of the backyard. Can I run a radial from this antenna and have the other
Author: "Bryon PAUL Veal n0ah" <bryonveal@msn.com>
Date: Thu, 25 Nov 2010 19:19:14 -0700
The big problem I see in the antenna market right now is how many smaller antenna companies or those sold off for what ever reason, have gone to distributors to manage their sales. In many cases, ins
I found out the hard way that tilting a tower, sideways on a pitched roof, has a bit of an extra pull of force, or slip, as soon as the tower begins to tilt past the roof line- we were lowering with
When speaking of 5 bands, I have used the Tennadyne T-8 log periodic for years using it on a 20 foot Glen Martin tower on the roof The T8 is an amazing antenna. Always a bit awkward to speak about on
oppss-- I knew I should kept my pen silent on 2013 Clublog results-sorry, using the T-8, on 10M, we tied for 3rd in CONUS for number of DXCC's worked-, and first place NA in the CQ Marathon for SB on
ClubLog is a small sample full of variables and know for science, rules it invalid- , but it does include a lot of operators around the world reporting their results- I am very open to hearing what o
I have snap on chokes on several devices (TV, Computers, Monitors, etc...) and they work exceptionally well- But what I find works best is keeping RF off of the feedlines. One product that has elimin
Buy them from HRO and you'll be fine.....what is yhe antenna you are using?? Sent with AquaMail for Android http://www.aqua-mail.com _______________________________________________ __________________
your seeing changes in the FEEDPOINT impedance using a tuned raised radial, thus your SWR will move if yoy mess with them. Suggest you consider using UnUns at the feedpoints to match the coax impeden
this is why I prefer a comtek hybred coupler.....I would suggest you look into one. You will use 75 ohm coax due to velocity factors but any RF feeding back due to SWR is burned off in a dummy load.
but with a comtek hybred coupler, you will never care aboit that 3%....plus the skin effect of wet radiators cause much bigger resonant changes that again, the hybred couplers dummy load soaks up....
guys, is it jist me or do these antennas sound to long to begin with? Array resonant aside... Sent with AquaMail for Android http://www.aqua-mail.com This is becoming a troubleshooting exercise now.
When I first put up my array, I only cared about the CW window, and again, used bottom fed coils with and alligator clip to go from the PH band to the CW band after some revisions. I agree with Bob t
I never have heard of a successful array using raised radials ... so this has been a good exercise. Also strongly agree with tuning the verticals to the intended frequency ..... but this is all with