The limit switches used are sold at electrical wholesale counters. They are heavy duty outside limit switches used in industrial applications. Nothing fancy. I'm sure someone on the list has the make
A few weeks ago a fella was looking for replacment limit switchers for his Tri-Ex tower. I stumbled across these two sources: http://www.gavazzionline.com/limit_switches.htm http://www.grainger.com/G
Hi Folks, Can anyone tell me the inside diameter of the 2" copper pipe used to make the JTNOTT BB3 mobile antenna? Seasons Greetings, dave wa3gin _______________________________________________ See:
Notice the anti-static protectors that were mounted on the top section of the tower ;-) doc wrote: The tower cllapsed on itself after being struck by the amll plane http://sakrison.com/radio/KFItower
for useful information regarding cyber security go to "www.cert.org" or "www.ecars7255.com" All you ever wanted to know and more 73, dave wa3gin Jim Jarvis wrote: It may not be that qsl.net... ______
Folks, All banishing aside. K7LXC has been the guy that set up this reflector. Some may say out of good will others will say as a opportunistic business man. No matter. As I see it the problem for K7
...the only place I've seen braid used commercially for RF shielding is on aircraft engine spark plug wires... 73, dave wa3gin Frank Donovan wrote: Keith, If you work as a professional in the industr
Go to www.w4mq.com (one of the fathers of Internet Remote Base ) operations. You'll need broadband on both ends of the connection for contesting... I've had my personal Internet Remote Amateur Radio
...it's all being done remotely. Email me directly for a block diagram and details 73, dave wa3gin K8RI on Tower Talk wrote: It depends on how computer savvy you (or your friends)are, but using an au
Bruce, Your problem has to be sovled by Titanix. I'm guessing the aluminum isn't from Germany but prolly from Russia or some other 3rd world country where there are no enforcement of standards. The p
Yes Jim you are correct about Telrex...and the 30yr old TB6EM that I have up at 35 meters is still working and none of the aluminum has broken off. That's about 10,950 days for those of you that aren
IC, Tom, sometimes I wonder why you bother to buy anything. You seem to end up rebuilding it better then you can purchase new ;-) I've got two of those Telrex baluns (NIB). Don't intent to use them b
HAHA, I can't argue with your logic Tom. It's right on the money. But for those of us that don't really care if the signals are 50db over S9 or 10db over S9 that garbage that was built 40 yrs ago wor
Hi Joe, One has to appreciate and remember that typically responders on this reflector and perhaps most others speak as if they've done a national survey when more often their statements are not much
I built one of the first totally Internet Remote amateur radio stations in VA several years ago when RS232 ports were plentiful on the back of PC mother boards. Now I'm using USB to RS232 converter c
Don't believe everything you read ... lots of bogus reports being sent via email. Prolly some other person's PC is infected and his PC address book is being used to send out false and misleading stat
...it's sort of bad science to try to prove a negative. Sounds like your buddy is trying to prove a positive! Guess you should try it and see for yourself, haha. 73, dave wa3gin _____________________
Jim, I run a NVIS on 40m 2 full wave dipoles fed in phase just 15ft above the ground. Within the first 50-75 miles the signals are extremely intense. My station is an Internet remote so I actually op
Yes, I've not run the measurements myself...a friend provided theidb inputs...in my current configuration there are reflectors on the ground that are cut 5% long. I doubt they will add much but you m
Al, I've had my NVIS up and running for the past four years. Another way to view the NVIS antenna is that it's best performance will occur when the skip is short. I use the NVIS to run nets on 40m. I