Use your antenna tuner and determine on which bands you can achieve a 1 1 swr.
Attic dipole ladder line.
Don t worry about the length of your antenna.
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.
Mac af4ps fp 51 note.
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.
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.
I have worked many parts of the world and most states with this rig.
The better your antenna the more success you will have making contacts.
Loft attic antennas for restricted spaces.
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.
The infamous attic dipole.
Feed the ladder line into your house taking care to keep it from coming in contact with metal and connect it to your tuner.
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.
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.
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.
You may be surprised to discover that you can become active on at least some hf.
Tie in attic or any available trees at your site.
Just make sure that both sides are equal.
Let your antenna tuner worry about getting the best swr out of this system.