"PDRUNEN" wrote

Hi again Group,

Thanks again for the help with the other questions I have posted on the
board.

Does anyone know the hurricane net frequency? Next few days should be
interesting for me, I am near Pensacola so I may not see as much action.

You most certainly will see some action, if Hurricane Frances follows the
current forecast track and comes right across the Florida Panhandle! HWN is
14.325.0 USB. Not very active after 0100-0200z. Other freqs put out there
today were 7.247, corrected to 7.242, did not seem to know what they were
talking about there, and 3.950, both presumably LSB. 3.950 LSB is active
now.

Someone else will have to help on your question about vhf-2 to vhf-13
impedance. The only time I receive broadcast tv is during hurricanes when
the cable is out. You might be there soon, I'm thnking. Good luck and stay
safe.

Jack
Virginia Beach


For my question on twinlead, most folks now use the 300:75 ohm balun at
the TV
antenna and drive coax down to the TV set. Has any one measured the
impedance
at the set with the MFJ-269 or equal over the range of TV channel 2 to 13?
and
14 to 69?

I recall working for a TV service man back in the 80's (I was a ham teen).
He
would put a twist on the feeder as he brough it down the pole and used 6
inch
standoffs to keep the line from getting near the metal pole and to keep it
straight. He used only RCA antenna's and gave me my first digital VOM for
my
birthday. I still have it today. I believe he enjoyed having a techie
teen
around who enjoyed the concept of the ether.

Could we get away from the above by placing a metal shield around the
twin-lead
or would this effect the impedance of the twin-lead? My goal is a folded
dipole and use the 300 ohm twin-lead with an outer shield to keep coupling
from
metal out of the equation.

Well, all for now.

73's from KJ4UO.....