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Author Topic: UNID 6925 AM 0145 UTC 02 Mar 2018  (Read 1037 times)

Offline refmo

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UNID 6925 AM 0145 UTC 02 Mar 2018
« on: March 02, 2018, 0148 UTC »
Weak music and wobbly carrier.
0147 - sounds like "Knockin' On Heaven's Door" Eric Clapton
0150 - "Wonderful Tonight" EC
seems off or faded by 0157
« Last Edit: March 02, 2018, 0157 UTC by refmo »
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Offline digitalmod

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Re: UNID 6925 AM 0145 UTC 02 Mar 2018
« Reply #1 on: March 02, 2018, 1646 UTC »
 If you're listening on AM you would not notice a "wobbly" carrier.
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Offline KaySeeks

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Re: UNID 6925 AM 0145 UTC 02 Mar 2018
« Reply #2 on: March 02, 2018, 1841 UTC »
Quote from: digitalmod on March 02, 2018, 1646 UTC
If you're listening on AM you would not notice a "wobbly" carrier.

  • If there is enough frequency movement (for example, strong FMing) they would notice it as a very distinct and recognizable form of distortion.
  • If they are using an SDR (which has nothing to do with reception modulation mode), they could observe it visually.
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Offline ChrisSmolinski

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Re: UNID 6925 AM 0145 UTC 02 Mar 2018
« Reply #3 on: March 02, 2018, 1852 UTC »
The "wobbly" carrier lets those of us with SDRs identify certain transmitters  ::)
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Offline refmo

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Re: UNID 6925 AM 0145 UTC 02 Mar 2018
« Reply #4 on: March 02, 2018, 2302 UTC »
I would have liked to listen to it in SSB for an improved S/N ratio, but the wobbly carrier makes that very unpleasant.  The sound in AM wasn't bad, just weak and noisy copy.
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Offline digitalmod

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Re: UNID 6925 AM 0145 UTC 02 Mar 2018
« Reply #5 on: March 03, 2018, 0003 UTC »
 I have pretty much forgotten SSB because, right or wrong, unless you build a special piece the bandwidth is dreadful 2.5 kHz. Like that is worse than a telephone in a third world country.
 :o
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