RTL-SDR Blog Radio

Main forum to discuss RTL-SDR related topics.
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jonesypeter
Posts: 12
Joined: Sun Jan 14, 2018 8:10 pm

RTL-SDR Blog Radio

Post by jonesypeter » Sun Jan 14, 2018 8:38 pm

Hi,

I received my SDR this week, and I'm very happy. I'm picking up our local airport (Gatwick) and other signals.

Can I ask what signal ranges on VHF/UHF you recommend using the longer included antennas, and which the smaller?

Thank you

Peter

rtlsdrblog
Site Admin
Posts: 2784
Joined: Mon Nov 19, 2012 11:54 pm

Re: RTL-SDR Blog Radio

Post by rtlsdrblog » Mon Jan 15, 2018 4:47 am

Glad you're enjoying it!

There's a guide for the dipole antenna here www.rtl-sdr.com/DIPOLE.

The guide shows what lengths are optimal for different frequencies, copying the relevant section below too.

Large Antenna, 5 Sections, 100cm + 2cm is resonant @ ~70 MHz
Large Antenna, 4 Sections, 80cm + 2cm is resonant @ ~87MHz
Large Antenna, 3 Sections, 60cm + 2cm is resonant @ ~115 MHz
Large Antenna, 2 Sections, 42cm + 2cm is resonant @ ~162 MHz
Large Antenna, 1 Section, 23cm + 2cm is resonant @ ~ 285 MHz
Small Antenna, 4 Sections, 14cm + 2cm is resonant @ ~445 MHz
Small Antenna, 3 Sections, 11cm + 2cm is resonant @ ~550 MHz
Small Antenna, 2 Sections, 8cm + 2cm is resonant @ ~720MHz
Small Antenna, 1 Section, 5cm + 2cm is resonant @ ~1030 MHz.

jonesypeter
Posts: 12
Joined: Sun Jan 14, 2018 8:10 pm

Re: RTL-SDR Blog Radio

Post by jonesypeter » Tue Jan 16, 2018 1:12 pm

Great. Thank you. I will give that article a read.

Username
Posts: 613
Joined: Sun Oct 09, 2016 7:27 am

Re: RTL-SDR Blog Radio

Post by Username » Mon Jan 22, 2018 8:18 am

:D or you buy some Antenna from Ebay who are cheap: https://www.ebay.de/sch/stanislavpalo13 ... _PrefLoc=2

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