i hope you can help me guys, we are tasked to build a helical antenna that would have a good reception for channel 2 (54-60 Mhz). Our main problem is on how to minimize dimensions. a 54 Mhz would have 177 cm diameter and 3.34x10^3 cm in length. Hope you can help me with this guys. tnx

 

Hello,

Why do you want to build a helical antenna?
Here is a calculator for it:
http://www.vk2zay.net/calculators/helical.php

A 54 MHz helical would need a reflector dish of about 5 meters in diameter.

Here are some pages with other antenna types:
http://educypedia.karadimov.info/electronics/antennas.htm
http://educypedia.karadimov.info/electronics/antennatypes.htm
http://educypedia.karadimov.info/electronics/antennatypeslist.htm
http://educypedia.karadimov.info/electronics/antennayagi.htm

There is also a hamamateur page with a lot of antennas:
http://ac6v.com/antprojects.htm

Bertus

 

TV signals are normally broadcast in H Polarisation. I would prefer to design a Multi Array Folded Dipole for that frequency.

Ramesh