Jim, Yes, the GC-038 is what you want. I used this with a G1000DX at my California QTH with a Force 12 C3SS atop a Rohn 50ft push up mast in the windy hills of the Bay Area. Like you I had a very sho
Jim, this will be hugely valuable. As someone else has posted, maybe the profiles should have data restricted to just sufficient to feed HFTA. I'll add my congratulations on a great idea and what wil
Gerald's note prompts me to ask a related question: What techniques are folks using for the first pull through a conduit? Background: Like Gerald, I plan to have a 400ft+ run of 4 inch corrugated irr
Many thanks to all for the on- and off-reflector replies. The consensus is around using a light pull line attached to a fuzzy ball/plastic sack or similar pulled through the conduit with a shop vac.
Guys, Spare a thought for those of us outside the US that have no access to Rohn products. Most of us have crank-ups. That 6-section 120ft tower I just took delivery of? It's 96ft to the top at full
Jerry, Two guys (pun intended) who do tower installation in the Bay Area are our esteemed reflector honcho, Steve, K7LXC and also Kurt, K7NV of prop-pitch fame. Neither are Bay Area based, but you ca
Bob, This workbook is a great service to the antenna building community - thank you! 73 Dave G3WGN WJ6O -- Message: 10 Date: Thu, 29 Nov 2012 21:26:00 -0600 From: Robert Chudek - K0RC <k0rc@citlink.n
Jorge, Depends how big your 'big yagis' are, what wind speed you'd like the mast to survive. You have to do some calculations. For your existing mast, the tricky part can be to identify what material
Robert, As you have identified, this is a risky situation that requires careful thought and planning. Some references to study: Physical Design of Yagi Antennas by Dave Leeson W6QHS (now W6NL). A wea
Or you could take a look at W8ZR's multi-rig StationPro controller as a starting point: http://www.w8zr.net/stationpro/ 73 Dave G3WGN M6O WJ6O Agree, any to any gives lots of relays no matter how you
Eric, Those are helpful thoughts. I use marine pulleys (blocks) for all antenna work - they last for decades in our wet & windy UK climate. I'm intrigued by your comment "Snatch blocks make replacing
Or use spark plug pliers. They are a good fit to PL259s and Ns and come with padded jaws for about $12-15 here. Google search will reveal many supplers in US & Europe. 73 David G3WGN M6O WJ6O Sent fr
Steve, Lots of experience here with Ecoflex 10, none so far with Ecoflex 15; also lots of experience with its sister products Aircell 5 and Aircell 7 for DXpedition and portable use (see TX6G.com for
Hi all, I've been following this discussion with interest as I will be installing my first towers next spring. On this crowded island towers are relatively rare so there is not much local experience
I believe that once water has penetrated the outer covering of FSJ cables, they are more prone to wicking the water into the inner insulation and conductor. They have a spiral outer conductor, which
Moxon's book (HF Antennas for All Locations) has a valuable discussion of where to place the antenna relative to slope - and it is not at the top of the slope. His discussion was predominantly about
Hi all, Looking for the TT brains trust to help me out with this issue: I have two drums of LDF4-50 and one of LDF5-50 which have been stored on their sides for around 10 years. This disobeys one of
Thanks Patrick. Makes sense to me. I do have a short length (maybe 60ft or so) of properly stored near-new LDF4-50 so I can use that as the baseline. Anyone actually attempted impedance or another me
Thanks for all the thoughts both on- and off-reflector. I'm initially concluding that inner conductor migration is not the reason for the 'store vertically' warning on the drums. I'll do a TDR and im
Thanks Jim. I learned about the DG8SAQ device after I'd already bought the AIM4170C. The AIM is a fine analyser but it tops out at 180MHz so I won't see quite such fine detail. May be time to upgrade