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Meteor Scatter on HF?


#1

Hi!
Today I had a strange QSO with OK8JOE/p. He was too close to hear him. I just walked away from the my room and suddenly there was 599 for a dozen seconds and again zero. /12: 13UTC/. It looked like a MS burst. And today we have the maximum of QUADRANTIDS shower.
In the past I worked a lot via MS on 144MHz FastCW and also SSB but I did not think that it is possible on 7MHz! Have You a had similar cases?
Vy 73 de Mariusz SP9AMH


#2

Hi Mariusz.

It was probably meteor-induced Sporadic E. Intense meteor showers can sometimes cause brief bursts of ionisation in the E-layer of the ionosphere. This is quite a well-known phenomenon, although it mainly affects the higher frequency bands (14 MHz and higher).

Do a Google search on “meteor showers” “Sporadic E”.

73,
Walt (G3NYY)


#3

Meteor scatter on the HF bands is common but it tends to be mostly noticeable in the early morning. It is easiest to observe if you can find a broadcast station that is transmitting within your dead zone. If you leave an RX running you will hear meteor pings every so often. It’s a fun thing to do when working in the shack.


#4

The reflection from Es on 7MHz seems unlikely to be too short, I think that it was a reflection from a large trace of MS. At VHF, it definitely took longer. Exactly at that time there were spots on the DXC with 2m. LZ-DL, OK-DL
73 de Mariusz


#5

Hi Mariusz,
I wonder if another possibility could have been Aircraft reflection? Again this is more normally seen at VHF but I “suppose” it could be possible at 7MHz.

Then again with the winds we are having at the moment perhaps OK8JOE’s antenna could have blown over for a few seconds before returning to vertical and while over it was NVIS propagation? That’s assuming a vertical antenna was in use.

73 Ed.