* Bill Walsh <Bill@kctu.com> [12-16-19 10:54]:
On 12/16/19 8:52 AM, Carlos E. R. wrote:
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On 16/12/2019 15.37, Bill Walsh wrote:
On 12/16/19 6:38 AM, Carlos E. R. wrote:
On 16/12/2019 12.57, James Knott wrote:
On 2019-12-16 06:47 AM, Dave Howorth wrote:
I need to find the source of some radio interference. So I've ordered an RTL-SDR kit and now I need to find some suitable software. I don't know much about radio - I could just about explain the difference between AM and FM :(
So if anybody can suggest places to look for info or specific packages that are good for locating interference and also easy to use for a noob, I'd be very grateful.
Cheers, Dave
I don't have any experience with that sort of software, but generally speaking, you just use a receiver with a directional antenna to find a noise source. What is being interfered with? Any equipment used will have to be able to receive the noise frequency. Also, some interference comes in through the power cord, etc., so you have to understand possible sources. It's a huge spectrum, so you'll need some clues to narrow things down. All my desktop computers play havoc on AM reception. Specially LW.
LAN over the mains power cable is terrible. Ever stop to think that your power lines are acting like a longwave antenna, transmitting and receiving. Need some filters. Neighbors probably notice it also. I assume the PSU has an EMI filter. But my receiver is specially sensitive, and it is close to the main computer. I must remember to try when it is off.
Should never assume anything.
Also, sending data over the powerlines and they transmit..........
Unless your power lines are in metal conduit.
There was an attempt some years ago to sell internet service over the power lines. A few test areas were tried. Didn't work well. Way to much interference. I know... but there is Ethernet over the mains inside the house. I don't remember the proper name... Powerline networking? There is another name.
A stupid idea, should be forbidden. Ask any HAM.
I don't think there was any "forbidden" but it didn't work. To much interference going both ways.
must have been refined somehow as I have had better luck with powerline wifi extenders having two cat5/6 ports than with regular (radio) wifi extenders. -- (paka)Patrick Shanahan Plainfield, Indiana, USA @ptilopteri http://en.opensuse.org openSUSE Community Member facebook/ptilopteri Photos: http://wahoo.no-ip.org/piwigo paka @ IRCnet freenode -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org