a quick queation about atennas

Discuss commercial and home made antennas.
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HighSNR
Posts: 51
Joined: Mon Sep 18, 2017 8:14 am

Re: a quick queation about atennas

Post by HighSNR » Thu Jan 09, 2020 6:35 am

Hi

It's difficult to know the exact length to tune a telescopic antenna. The cable and ground plane play a big part. 1/4 wavelength is a good start point. Unless you have a VNA, you can just tweak for optimal reception. It all depends on how critical it is to extract those last few dBs of sensitivity.

Vertical is often the correct polarization, but it should be set to match whatever the incoming signal is.

If you want something that is more guaranteed to work at a range of frequencies you can use ultrawide band antennas such as Spirals, Vivaldi's or Discone's. I happen to know someone who sells such items on Tindie ;)

Username
Posts: 602
Joined: Sun Oct 09, 2016 7:27 am

Re: a quick queation about atennas

Post by Username » Fri Jan 10, 2020 5:33 pm

Well:
a) where are you from?
b) what band are you want to tune in?

I will behonnest the Telesopic Antenna is good for Travel when you want tune into local Radio and you might understand the foreign Languae for more.
For a Stationary Setup I would buy even a good cheap Antenna.

If you are from Europe: https://www.delock.de/produkte/G_1468_Antennen.html

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