repeating signal in triplet

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agitativeace

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Message 2015492 - Posted: 15 Oct 2019, 7:19:00 UTC

5.361454010 GHz
green bank telescope row4_6 Pol1

repeating triplicate radio signal, pattern is 1 2 1.

not to jump to conclusions but wouldn't a logical jump from telegraphs to radio is wirelessness and the best way to communicate is sending 1 11 1 in irregular intervals, have yet to find any pattern.
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agitativeace

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Message 2015493 - Posted: 15 Oct 2019, 7:26:20 UTC
Last modified: 15 Oct 2019, 7:29:00 UTC

5.317314147GHz Green Bank Telescope

Sun July 28 15:53:51 2019

Triplet in irregular intervals but always in the same spot
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Message 2015496 - Posted: 15 Oct 2019, 7:49:57 UTC

Before getting carried away with communications concepts take a look at the RF ban plan for your country and make sure there is no major use of them. Also you need to think what a triplet is. Triplets like you describe can simply be the product of transmitting RF signals - the centre frequency is the "carrier" frequency, and the two other signals are "side bands", most often caused by the modulation techniques employed on the centre frequency. The two side bands are more or less symmetrical about the carrier, and at about the centre frequency at the modulation frequency, so if we have a carrier of 100, and a modulation of 1 (keeping the sums simple) we get:
Carrier - modulation = 99
Carrier = 100
Carrier + modulation = 101
The relative heights are determined by the relative strengths of the signals (the sums get hard here, so I won't do them), but crudely it is quite common to see ratios of 5:3 and 2:1 when the signal energy is expressed in decibels.

(I could go on for the next few thousand pages of my notes, but I don't think you would want that.....)
Bob Smith
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agitativeace

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Message 2015566 - Posted: 16 Oct 2019, 1:02:11 UTC - in response to Message 2015496.  

on the contrary i would love to have an easily accessible wealth of knowledge on the program, anything to help my search be more accurate is appreciated
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Message 2015598 - Posted: 16 Oct 2019, 12:23:11 UTC

Rather than my mountain of notes, which are moistly handwritten you would be better searching on the internet for things like "basic radio signal modulation", "basic signal processing", "fundamentals of waveform analysis". There are some good tutorials around, however there are some that dive straight into some very heavy maths - I don't know what level your maths is at so I'm not going to advise you what is going to be most understandable to you
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Message boards : SETI@home Science : repeating signal in triplet


 
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