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AM Antenna
Posted: Tue Oct 26, 2004 1:44 pm
by Leif
Ware can a fin a good AM antenna is wary nice to haw am Transmitters
bout wat a bout Antenna
and ware can a bay it
greitings
Leif
Posted: Tue Oct 26, 2004 2:22 pm
by pcs
Well, antenna is extremely important in AM system. While
you can get away with a short piece of wire at least to get
some basic range in a FM VHF system, this isn't so simple
on mediumwave AM band.
1m of wire will get you virtually zero range. Grounding system
and soil conductivity becomes more important, too.
Why is that so? Wavelength of mediumwave signals is much
much longer than those of FM broadcast band. 3m at 100MHz
and 300m at 1000KHz.
What can you do? Choose frequency which is as high as possible,
for example 1610KHz.
Antenna will have to be a very long piece of wire, extended between
trees and similar high objects.
Exact design information are available here:
http://www.dxzone.com/cgi-bin/search/frame/FrameIt.cgi?
http://www.dxzone.com/cgi-bin/search/ju ... 81&ID=7481
http://home.germany.net/100-119720/ldp160.htm
http://www.dxzone.com/cgi-bin/search/fr ... 44&ID=7344
http://www.dxzone.com/cgi-bin/search/fr ... 84&ID=7484
Do a Google search on "AM broadcast antenna" or "160m antenna design"
AM Antenna
Posted: Wed Oct 27, 2004 9:47 am
by Leif
Tanks a wont to bay komplett am antenna
yost plug inn ready for use ware can a fin dat
a hope you can help me
greitings
Leif
Davao City
Philippines
Posted: Wed Oct 27, 2004 9:51 am
by pcs
In that case look at our paypal link near AM MAX II
transmitter description.