14-10-2018, 05:28 PM
G'Day To All,
My scenario is as follows:
The back yard only allows me to string out a 88' Dipole.
The dipole centre is 33' while the ends come down to 20'.
From the feed-point is a 33' length of 450 Twin Lead to ground level where it enters a 9:1 Balun, then 40' of 50 ohm low loss back to a tuner.
I particularly like operating on 160 & 80.
At 160, the Impedance at the balun will be 270 ohms, not a big drama, but on 80 the impedance falls to 50 ohms.
Will the signal on 80 be greatly affected do you believe?
Pete VK4CCV
My scenario is as follows:
The back yard only allows me to string out a 88' Dipole.
The dipole centre is 33' while the ends come down to 20'.
From the feed-point is a 33' length of 450 Twin Lead to ground level where it enters a 9:1 Balun, then 40' of 50 ohm low loss back to a tuner.
I particularly like operating on 160 & 80.
At 160, the Impedance at the balun will be 270 ohms, not a big drama, but on 80 the impedance falls to 50 ohms.
Will the signal on 80 be greatly affected do you believe?
Pete VK4CCV