I was able to purchase two used 30 meter Valor pro am mobile whip antennas (20.00 for both) they will be used for WSPR (also CW) and will be heading up into my already crowed attic antenna farm. I have a bracket that will allow me to configure the antennas as a dipole. I first have to move my Diamond discone antenna to make room for the new dipole not sure where the discone it is going to end up. The support for the new dipole will be the same as was made for my 40 meter mobile whip dipole. This time I adjusted the whips for the lowest SWR while the antenna was on the main floor using my MFJ-259B analyzer. The 40 meter antenna was adjusted in the attic that was
Before the second LMR-400 was added
Finished look with the LMR-400
lots of up and down a ladder and climbing around in the attic. Getting a little old for that stuff.....and according to Murphy "The more you are up and about in the attic the probability rises to you coming through the ceiling" I have found that coming through the ceiling is not as bad as the explaining it to the XYL........that my friends is another whole blogging subject...... I was able to get the SWR to 1.4 at 10.130. I have lots of LMR-400 around the house so that will be the feed line the interesting part is getting it fished through the wall and into the attic. Where the LMR-400 comes out the wall I have installed an electrical box. That way I can run the coax into the box and place a cover plate over the box as well. It gives the install a nice clean look and avoids an ugly hole in the wall with the LMR-400 coming through. This time I am going to play it smart and run an a nylon string so I can pull up another LMR-400 line for the final antenna I feel the last antenna will be the MFJ magnetic loop but that is sometime in the future. At either end of the coax as with all my antennas I insert a 1:1 balun (1110cu) from Balun designsor the MFJ-915 balun for feed line isolation. I put the antenna up this Saturday and it went up very easily and the feed line fished through the wall nicely as well. I double checked the SWR once the antenna was placed in the attic and it was still 1.4 I did not have time to get the coax into my LDG antenna switch and try the antenna on the air.