Yes, there is a great solution, I'm using it for almost 10 years. The issue with capacitors in 160m is the dielectric an most capacitors get hot and change the capacitance. I used 19 x 62 pFNPO 3KV c
Commscope, Times and what ever else quality distributors such as Tessco carry are what I suggest. Also see about buying from the local CATV installation contractors. Carl KM1H I have been watching th
I bought a similar deal from them about 3 years ago, great for Beverage and other switching and no failures or intermittents yet. Carl KM1H The web site is a little confusing about the quantity, but
A tuneable preselector such as an Ameco or Palomar may provide the needed front end selectivity. I used a Palomar I added a RF gain control to on the TS-940 before modifying the front end in the late
You can use any coax you want but the lower the loss and C per foot the deeper and sharper the null. I use CATV type RG-11 foam on HF which worked fine for 2 op contesting, and 7/8" Andrew hardline o
The March QST has a broadband dipole feature article. Carl KM1H It's the reference to termination resistors in the SPX data sheet that bothers me. Tom G3OLB K1FZ wrote: <The antenna in a simpler sing
Hi Guys, Forgive me, please, if I'm re-hashing a bit of the "...same-old, same-old" here, but I am really curious as to any "real world" experiences that might be out there in the matter of elevated
Elevated radials avoid a collection of lossy mistakes that one finds in less than optimal buried/on ground radials. If a full size radial system is done properly, dense, uniform all around, you will
Since the radial field for any height vertical has equal importance the only way to get 1/4 wave efficiency is to have zero RF loss in the loading coil and matching network. Cryogenics anyone? There
ON4UN's series of books have always had way too many individual assumptions and we all know what happens then. Those books offer a place to start and then apply your own unique soil and local conditi
I use CATV hardline everywhere here and have had some left over bare coils on the ground for the 24 years Ive been here. Except for staining from leaves, etc it is still fine appearing. The ground is
Gilbert makes ends for UHF and N in male and female. http://www.corning.com/gilbert/broadband_products/trunk_distribution/index.aspx LRC is another. http://www.westfloridacomponents.com/mm5/graphics/
If you can find a proper (that is, complete) technical data sheet for whatever coax you are considering, it will include values for the DC resistance of the center conductor and the shield. Likewise,
How about folding the shields back a little? I think that's a superior way of doing it as opposed to cutting them all flush with the jacket. Be careful doing that or using any non-approved assembly m
How about replacing it with nothing! I find the current one offensive and dont think any forced signature is warranted. Carl KM1H "fine whiskey is a daylight beverage" is appended to the end of each
-- Original Message -- I dont care for forced signatures...period. Just more useless bandwidth to be erased when replying so as to not aggravate you with untrimmed messages. Carl The "fine whiskey" s
I am not offended at all relative to the "fine whiskey" deal. To begin with I'm too busy to worry about trivia such as that. I agree, John--there's nothing at all wrong with a fine whiskey, anyway...
Im another who has been using the RF Industries tool for well over 20 years for both 50 Ohm and mostly CATV or Belden RG-11 foam. No failures or funny things happening. Carl KM1H Mike, Here's a link
Now you have to use it up the band on AM where there are still plenty of 833's in use. Carl KM1H Well, mine's not much to look at. I sort of designed it as I was building it, using junk parts that I
Are you now claiming that the thousands of bead choke baluns in use for decades at HF and 6M dont work? I suspect that those who have been happy with the results in mimizing feedline radiation would