Finding a signal frequency Via type of antena

Talk about anything else here.
Post Reply
Hoshen_Kadosh
Posts: 4
Joined: Sat Sep 08, 2018 11:15 pm

Finding a signal frequency Via type of antena

Post by Hoshen_Kadosh » Sun Sep 09, 2018 10:53 pm

Hi. i am new to sdr. i am trying to find my local emergency sirens frequency. i know from the manufacturer that it can be either UHF or VHF activation via DTMF codes. now, this is the yagi antenna mounted on the siren its self. dose it Looks like its tuned to UHF or VHF? trying to get a Direction where to scan...



Image
Image

Remon
Posts: 43
Joined: Fri Jun 22, 2018 2:49 am

Re: Finding a signal frequency Via type of antena

Post by Remon » Mon Nov 05, 2018 12:53 am

In which country or state do you live? You can try to figure out what horns are used, what their size it is and determine the yagi element sizes. Then use an online yagi calculator to find out the frequency.

Post Reply