no ground wire hooked to mast-mast in the ground.did you not run a ground wire also since that could be used by the antenna as a element also ?
got any closer pics of the matching system used ??????????
no ground wire hooked to mast-mast in the ground.did you not run a ground wire also since that could be used by the antenna as a element also ?
got any closer pics of the matching system used ??????????
loose cannon i am getting closer and got more pics.so far i have a length of either 21-1/2 inch radiator or 21-9 1/2 inches entire length with the dip at 32 and 1.15 and 38 at 1.2 and 55 at 1.3 maco states to measure the full length from top to bottom.the loop gap is still at 3 inches maco calls for 1 inch.groundplanes are 3 inches maco calls for 1/2 inch from bracket.changes so far are as follows, drilled rivets out of pl-259 and replaced with nuts and bolts,changed crappy wire to 12 gauge double insulated copper(should help when it rains)also increased the length of this tap wire by one inch just in case i have to make a bigger loop,better connector for the tap and a gromet over the pl-259 connector(no more rain there haha).found this post on another forum and thought someone might find it interesting:
"some old 5/8 wave antenna lengths from ads in S9 magazine, CB magazine, Echo catalog, Henshaws catalog, & from CB Radio Operators Guide 2nd Edition by Tab Books; all from the 70's"
Avanti Saturn (22' 6")
Avanti Sigma 5/8 (22')
Hygain CLR2 (19' 10")
Hygain Super CLR Penetrator (22' 9 1/2")
Kris GLR-2 (19' 10")
Mark Products MK-V (20')
Mosley Electronics Devant (20' 5")
New-Tronics PRO-27-JR (19" 10 3/4")
R. Shack Archer Deluxe Colinear (19' 10")
Wilson Alpha V 5/8 (21')
(and one .64 wavelength)
Taylor Grand Slammer 6400 (23' 3 1/2")
i just did a couple of radio checks at 10 miles 8 foot of the groun and the 1 guy i usually talk to said i was 30s units and the other 10,i usually hit the first guy at 30 when my antenna base is at 40 feet so i am going to mount it and try again.i think the other guy i also usually hit at 10 but thats at 40 feet.gonna have to try it out its been down all week.nice changes.
do you have a station a few miles away to tell if you are making a positive or negative difference in signal radiation?
LC
cool beans i had this first one up after the imax snapped i think it worked better than the antron that was on the top of that same mast and the second one is up there now 33 foot loop in a different spot but once i get the maco finished i will use the mast as a hanger to my other roof with another hanger to hang this loop vertical.cool!
im going to do the same sort of experiments when i get my maco, but that wont be for a while.
if you have a field strength meter handy, you can watch the real world signal increases and decreases your changes are making.
i cant wait to put up a real antenna again!
i have an inverted V up on the roof, but it leaves a lot to be desired. LOL
have fun!
LC
on the ground those whips worked perfectly but when i got the antenna in the air the match went south! i ended up taking the whips back off and isolating the mast from the antenna bracket.the weird thing is i have a peice of fence post mounted to the back of my garage and i just drop the mast into it with a hose clamp to position it and that section of fence post with the mast was acting like a matching network.to match the antenna to the new .64 length all i had to do was drop the mast into the fence post and adjust for my dip!wow any comments would be appreciated!ok well i dont know about antenna theory however this midland is now 23 feet with out the matching coil and total antenna 23 1/2 feet i mounted 2 whips at the bottom and trimmed them down to 4 feet 2 inches each.my match is shocking workable 26-29 mhz and flat accross almost 2 bands.i used this last night with a trc-209 walkie talkie mounted about 7-8 feet with 3 watts out.2 stations one 10s units and the other 8-9 from about 10 miles.i will be mounting this about 25-30 feet tonight for additional testing and then pulling the maco back down.