Military 255 Hz and Local airport tower!

[Patriot2120]

I have RTL-SDR on SDRsharp (Airspy). When i go to the 120 Hz for the airport I heart nothing but static. When I go to the 255 Hz for Military I hear a mix of high pitch sounds and static. I have a dipole antenna that is inside my house and I am using the longer antennas. Do i need to install an antenna outside to get these channels? Here is a pic of what i get at 255Hz.

 

[Whiskey3JMC]

Yes, installing outside would likely rule out anything indoors emitting undesired RF which could potentially be causing what you're describing. Whether or not you'll pick up what you're after? I don't know. But you should definitely pick up much more with an exterior antenna mounted high

 

[kb5udf]

Unless you are very close to the airport (a few miles) you probably won't hear much from the airport itself with an indoor antenna.

I would try the following:
1. Find the nearest airport to your location that has a tower; lookup the frequency for ATIS (either this website or elsewhere); if you can't hear it, you won't hear much else from that airport itself (ie the tower)
2. Even if you can't here ATIS, lookup the frequencies for approach and departure for the nearest airport and scan them. Now you are listening for the planes themselves and these signals will be much stronger than the tower.

Alternatively, since you appear to be using SDR# and an SDR, use the frequency scanner plugin and scan the airbands to see what you here, no need to know specific frequencies, because you are scanning the bands.

FYI as a general rule, civilian aviation (118-136 voice) frequencies won't get into your house all that well on an inside antenna, but no harm in trying and put antenna near largest window. Much better is the attic if you don't have metal roof. The military aviation might penetrate inside a dwelling a little better, but still will suffer, again attic is much better if you can't get outside, assuming you don't have a metal roof of metallic foil insulation on the back inside of the roof/back of shingles inside.

 

[moonbounce]

I have RTL-SDR on SDRsharp (Airspy). When i go to the 120 Hz for the airport I heart nothing but static. When I go to the 255 Hz for Military I hear a mix of high pitch sounds and static. I have a dipole antenna that is inside my house and I am using the longer antennas. Do i need to install an antenna outside to get these channels? Here is a pic of what i get at 255Hz.

View attachment 104701

You mean MHZ right?

 

[slicerwizard]

I think you're confused.

 

[Patriot2120]

Whiskey, I am within about 4 miles of the SRQ airport. But with that being said, yes I am new at this and stumbling my way through RTL-SDR. Currently I am using the Windows 10 version. I am not sure how to get to the Scanner Plugin to scan. I downloaded the Plugin and dropped it into my folder as it specified and I still dont see it! Anyway, here is what I am currently using to listen to police and ems! I get these awesome. Any input? Here is what mine looks like on my desktop!

 

[Patriot2120]

 

[Patriot2120]

I think you're confused.

And this helps me how?

 

[PDXh0b0]

I live 4.5 miles from the local airport ,at the peak of my roof I could barely recieve their ATIS and only moderate reception from planes unless they passed close. At 28ft I get their ATIS and air to air and tower.

I use freqman & freq scanner from a link here in the forum.

MEGA

MEGA provides free cloud storage with convenient and powerful always-on privacy. Claim your free 20GB now

mega.nz

You extract the zip files, in the Freqman extraction you put the SDRSharp.FreqMan.dll
Into your SDRsharp folder. In the freqman folder is also an install text, in that text is the "magic line" as they call it. Looks like this..
<add key="Frequency Manager" value="SDRSharp.FreqMan.FreqManPlugin,SDRSharp.FreqMan"/>

You copy that, then in your sdrsharp folder you right click on Plugins.xml and open with a text editor like notepad

 

[slicerwizard]

And this helps me how?

Hopefully, it helps moonbounce.

 

[dlwtrunked]

You mean MHZ right?

(You mean "MHz" right? - The correct abbreviation capitalization. - and note while mentioning that, kilohertz is "kHz" - yes small case for the "k" for that one .)

It does appear that he may not know what exact frequencies to tune to. But most important it that people expect incorrectly a high level of military traffic. Military frequencies are generally much quieter than commercial air frequencies.

 

[moonbounce]

Hopefully, it helps moonbounce.

Slicerwizard, that was Patriot 2120 that typed that reply, I think you are confused.

 

[Patriot2120]

I live 4.5 miles from the local airport ,at the peak of my roof I could barely recieve their ATIS and only moderate reception from planes unless they passed close. At 28ft I get their ATIS and air to air and tower.

I use freqman & freq scanner from a link here in the forum.

MEGA

MEGA provides free cloud storage with convenient and powerful always-on privacy. Claim your free 20GB now

mega.nz

You extract the zip files, in the Freqman extraction you put the SDRSharp.FreqMan.dll
Into your SDRsharp folder. In the freqman folder is also an install text, in that text is the "magic line" as they call it. Looks like this..
<add key="Frequency Manager" value="SDRSharp.FreqMan.FreqManPlugin,SDRSharp.FreqMan"/>

You copy that, then in your sdrsharp folder you right click on Plugins.xml and open with a text editor like notepad View attachment 104710

Thanks! PDX! I am gathering some info to see which direction to go! I appreciate the input!

 

[slicerwizard]

Slicerwizard, that was Patriot 2120 that typed that reply, I think you are confused.

Your reading comprehension is confused. Over and out.