Attic Dipole Ladder Line

Mac af4ps fp 51 note.

Attic dipole ladder line.

Feed the ladder line into your house taking care to keep it from coming in contact with metal and connect it to your tuner. Use your antenna tuner and determine on which bands you can achieve a 1 1 swr. Let your antenna tuner worry about getting the best swr out of this system. Well my 40m windom loads up very poorly on 80m and i m likely burning a good bit of my meager power heating the coax.

This was installed at a previous qth i will be the first or millionth remember i m from fl to affirm that the antenna is the determining factor for success when it comes to one s station set up. The first antenna was a simple zigzag dipole which i fastened to the roof spars using electric fence. The infamous attic dipole. Just make sure that both sides are equal.

Loft attic antennas for restricted spaces. Blue is the 40m long ladder line fed doublet strapped as a tee and fed against 16 ground radials using an auto atu at the base. Ladder line fed dipoles are ideal for attic use assuming that you can route the ladder line to your radio without too much metal contact. Don t worry about the length of your antenna.

Feed the dipole in the center with 450 ohm ladder line available from most ham dealers and buy an antenna tuner with a balanced output. In the case of the ladder line dipole just make it as long as possible and stuff it into your attic any way you can. Ladder line fed dipole in attic some local qrp folks known as the knightlites meet regularly on 3 574mhz they meet on 80m so that nearby folks can participate via skywave effect of 80m. I have worked many parts of the world and most states with this rig.

Paint or tape the white ladder line to coax transition fitting use cameo dacron for supports color white insulators tie supports to trees at least 20 above grounds people can t mess with learned this the hard way. If you have an attic for example install the longest dipole you can and feed it with ladder line. I have a fan dipole for 160 75 40 meters cut to length on each leg to have low s w r s it is fed with 85 or so feet of lmr 400 coax can i feed it with ladder line and get rid of coax cable or should i build a new dipole for 160 75 40 meters and feed it with ladder line i have manual tuners and auto tuners too let me know what to do with the.