We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations. Always consult with the appropriate authorities if you have questions concerning what is permissible in your locale.

Author Topic: 6950 Mystery Carrier  (Read 1181 times)

Offline ChrisSmolinski

  • Administrator
  • Marconi Class DXer
  • *****
  • Posts: 31149
  • Westminster, MD USA
    • View Profile
    • Black Cat Systems
6950 Mystery Carrier
« on: August 04, 2013, 1217 UTC »
For several days now I have noticed a carrier on 6950. I'll see it in the morning, it is present now at 1215z, fairly strong, about an S8. It will then fade out over the course of the morning.

I don't notice any useful modulation on it, but there does seem to be 60 Hz hum.
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 Kilokat7

  • Global Moderator
  • DX Legend
  • *****
  • Posts: 1450
  • West Michigan
    • View Profile
    • Kilokat7 DX
Re: 6950 Mystery Carrier
« Reply #1 on: August 04, 2013, 2046 UTC »
I noticed it too this morning at 1124z while tuning around.  It looks to be centered at 6950 with several 60 Hz spaced "spikes" above and below 6950 when zooming in closely using the spectrum display.
PLS QSL kilokat7(at)gmail.com
Location: Western Michigan
Perseus SDR / DKAZ loops
1980s pirate off-air archive
West Michigan DX

Offline ChrisSmolinski

  • Administrator
  • Marconi Class DXer
  • *****
  • Posts: 31149
  • Westminster, MD USA
    • View Profile
    • Black Cat Systems
Re: 6950 Mystery Carrier
« Reply #2 on: August 04, 2013, 2116 UTC »
I saw the same thing, the 60 Hz spikes. It seemed to go QRT exactly at 2100z.
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

 

HFUnderground T-Shirt
HFUnderground Garden Flag
by MitchellTimeDesigns