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Author Topic: Signal to Noise Ratios  (Read 2094 times)

Offline ChrisSmolinski

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Signal to Noise Ratios
« on: September 29, 2011, 1753 UTC »
There's been some... discussion about transmitter power levels, and how many watts does an operator need to "get out". I put together a short blog entry on it, which includes some simulated recordings of various Signal to Noise Ratios (SNRs): http://www.hfunderpants.com/?p=121
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Chris Smolinski
Westminster, MD
eQSLs appreciated! csmolinski@blackcatsystems.com
netSDR / AFE822x / AirSpy HF+ / KiwiSDR / 900 ft Horz skyloop / 500 ft NE beverage / 250 ft V Beam / 58 ft T2FD / 120 ft T2FD / 400 ft south beverage / 43m, 20m, 10m  dipoles / Crossed Parallel Loop / Discone in a tree

Offline weaksigs

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Re: Signal to Noise Ratios
« Reply #1 on: December 21, 2011, 1414 UTC »
Kinda a late reply Chris  :o
Very well done!

Your SDR radio sure works well! Its a great measurment tool
I have been circling the field concerning one myself- now that
Radio Jet "thingy" appears. Hmmmm....

I for one really appreciate your work on this matter of "gettin out".
I have as much trouble down here in central Florida as anyone hearing
pirates on 6.925 +/-. With the low antennas you commented on
certainly signal levels would be reduced a bit down here on my antennas.

Keep up the good work- de-mystifying some of the aspects of ERP

My Thanks sir!

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Central Florida
136' random wire for general HF,
Winradio Excalibur G31 & Kenwood TS-590

Peace!
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