ummm, you aren't going to like my thoughts... I think you are way in over your head on this... If you insist on trying to use a stiff coax in a flexing situation you are in for endless breakage... Th
This morning in Michigan we are having a mix of sleet and freezing rain... I was up early so I wandered out to the shack about 5AM to see if any Pacific DX was coming in on 80 or 160... When I energi
Interesting to see the thread drift... I thank all of those who are concerned about my antennas being unprotected... They are well grounded when not in use, that is why I de-energized the antenna rel
Paul, you don't have to model the Stepp IR specifically, just model any 2 el antenna at that altitude and the bands you will be using and that will show the major and minor lobes... More elements wil
Birds kill themselves in all ways... It will be roughly a million years before natural selection has selected birds that don't slam into windows and towers and such... Interesting that this topic sho
Sights like that always make me wonder what our ancient ancestors thought about such things. To them it was pure mystery. ** To the shaman it was an excuse to schedule another sacrifice of a 13 year
My first thought is 3 sections of 20G tower guyed at the top and setting on UHMW pads. Then 3 sections of 10 foot long schedule 40 aluminum pipe in decreasing diameters... You will need to shim them
Let me second Dave's comment... Using rope for a tram line, or small diameter cable is asking for a crash... I also use only 1/4" EHS... Because the tram line is pulled into a caternary shape the tot
I'll try to reply to all the comments... First, yes, the wood drum the EHS is on is two feet in diameter, and you roll the drum and wire around, you don't carry it <at least I can't>.. Yes, EHS has a
There is considerable research that indicates that grounding the elevated radials for RF harms the pattern more than just a little... At -1dB hit, and likely more... If the vertical is only +2.7dBi g
An excellent write up Dick, by a obviously experienced ham... Now, having noted that; let me comment that by the time you wait on the solder gun to get hot enough to tin the braid on the first end I
Someone, Fred I think, sent an email asking if I have a bill of materials... I accidently wiped the email so I will reply publically here.. Seems to me I ordered the stuff through Davis RF at the sam
Well, I looked at the tools when I got home last night... I got the tool and dies from: http://www.rfcoaxconnectors.com/ The crimp-on PL259 for RG213 is the RFU-507 The crimper tool is the RFA4005.20
** Bill, old pal... It won't take too many more postings like this to begin disliking you.... Hawaii, sun, sand, bikinis, 900 foot launches over salt water! Bah, humbug.... Denny / k8do - in pancake
All is not lost... There are ways to approach this... First will be to rotate the 80 array at 90 degrees from the 20 array... While this will not stop all interaction it will diminish it... Next is t
Scott W3TX <superberthaguy@adelphia.net> wrote: Detuning can certainly reduce interactions. But there is no free lunch. Adding relays to the linear loading wires adds additional points of mechanical
For 3.5 mc you want 5 sections and a 1" stinger to 72 feet overall... For 3.85 mc you want 5 sections and a 1" pipe to 64 feet overall... I have not used the taper top section for my phased transmit
Nice Dave... Thanks for the effort... Being that I operate primarily 80 and 160 cw it sounds all too familiar, esp. the minus 3 dB... Confounding the issue on these bands is that highly directive ant
Go to Force 12 website and look up Tom's DXpeditions... -- Boardwalk for $500? In 2007? Ha! Play Monopoly Here and Now (it's updated for today's economy) at Yahoo! Games. ____________________________
A year ago I did a number of tests on swinging link coil, type tuners... I found that for todays 50 ohm, fixed tune, transceivers I always needed a series cap on the link coil to cancel the reactance