Attic Dipole Ladder Line

Use your antenna tuner and determine on which bands you can achieve a 1 1 swr. Mac af4ps fp 51 note. 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.

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The Lure Of The Ladder Line

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Don t worry about the length of your antenna.

Attic dipole ladder line.

The first antenna was a simple zigzag dipole which i fastened to the roof spars using electric fence. 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. You may be surprised to discover that you can become active on at least some hf. 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.

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. The infamous attic dipole. 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. Tie in attic or any available trees at your site.

Feed the ladder line into your house taking care to keep it from coming in contact with metal and connect it to your tuner. Just make sure that both sides are equal. 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. The better your antenna the more success you will have making contacts.

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. 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. 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. If you have an attic for example install the longest dipole you can and feed it with ladder line.

Let your antenna tuner worry about getting the best swr out of this system. Loft attic antennas for restricted spaces. I have worked many parts of the world and most states with this rig.