Being a tower rookie, I learned this lesson the hard way, needing to replace a rotor and no lower bearing. Necessity being the mother of invention, it turns out that for a 25G tower and a 2" mast, yo
Also try Arrow. Last batch I bought was (IIRC) low $5.xx for something like 10 pcs. 73/jeff/ac0c www.ac0c.com alpha-charlie-zero-charlie YES! NEC will at least get you in the ballpark if the model yo
I did. 73/jeff/ac0c www.ac0c.com alpha-charlie-zero-charlie This is a test pse disregard. Sending reply to n4jbk@comcast.net and towertalk@contesting.com If this is a corrupt email I should get a por
Or a (recently joined) guy who's using the reflector postings as an address source to send out spam. 73/jeff/ac0c www.ac0c.com alpha-charlie-zero-charlie --Original Message-- From: Scott Sent: Monday
Don't get too excited about the headers. Source email addresses and source IP addresses can be spoofed. Look at the recent subscribers just prior to the excitement. 73/jeff/ac0c www.ac0c.com alpha-ch
How does one give a yes or no when the question's answer can most accurately be distilled down to "it depends." 73/jeff/ac0c www.ac0c.com alpha-charlie-zero-charlie 73, Jim K9YC _____________________
If I recall, the Mosley beams faired quite poorly in the K7LXC/N0AX test. These beams do have a reputation for being well made, however. The best performing were the Force12. The Optibeam and the For
You can stack them, but the interaction defeats the purpose of having monobanders. I just ran through a modeling cycle with my stack and the 15m especially gets whacked. The hex beam or a single trib
Harbor freight has a very handy butane unit. It's got a soldering tip and (importantly) a built-in igniter. http://www.harborfreight.com/butane-pencil-torch-41169.html 73/jeff/ac0c www.ac0c.com alpha
I used RG11 (foam) for a few traps on an attic antenna (very hot in the summer) that was used for rtty contesting (plenty of heat being dissipated by the trap). The trick is to get a big enough radiu
Cut the element as a DE and use a relay switched coil in the center. I'm not sure how that works in the trees but that design does work as a DE/REF + DIR/DE combo when the dimensions are stable. 73/j
The fundamental point is that there are better beams available - if performance is is the emphasis. The Mosely's have a good reputation of not falling down in the ice and around here that's a HUGE fa
Gear choices are a complete joke when talking about being active over a span of 50+ years - as a lot of the top honor role guys have been. Sure, some gear is better than others (antenna X is 2 db bet
The mosleys are popular around the midwest as Mosley is just up the road. And they have one feature that is important here - they have a reputation of staying up in the ice and wind pretty well. The
Read the supporting study - the details of the test method are explained pretty clearly. Then you can make your determination as to the validity of the methods employeed. 73/jeff/ac0c www.ac0c.com al
Last year I spent quite a bit of time with the VNA/SA and trusty 259 trying to determine the precise resonant point of a Hy-gain trap. In the end it was a failure - I could not pull the environment o
The results were published in a book. Part of the book details the setup. Equipment used, topologies, etc. 73/jeff/ac0c www.ac0c.com alpha-charlie-zero-charlie --Original Message-- From: Peter Voelpe
I dug that article out of my stack of to-read stuff. And just like you say, there is a very nice looking article in there with a very slick test setup. I'm sure it gives repeatable results. Meaning i
The hairpin match is a feature provided in AutoEZ. If you are a hardcore EZNEC user, check out AutoEZ. Its a spreadsheet based optimization front end for EZNEC that's written by Dan AC6LA. He's the g
If you need an endorsement, I believe this antenna was the choice of the 2014 WRTC. It was made originally by Cycle 24 but later the designer hooked up with JK to do the builds. 73/jeff/ac0c www.ac0c