Asteroid Bounce Experiment


Alan Jones <oalanjones@...>
 

This week the ARRL announced:

https://www.arrl.org/news/amateur-radio-operators-invited-to-participate-in-asteroid-bounce-experiment


There is no information that I can find on how to listen to a LFM (linear FM) signal.
If someone can enlighten me on this please do 😄

I've been using SDRConsole for two months and I am still learning how to use the software.
Bravo-Zulu to Simon for writing this excellent piece of software.

Would it be possible to use SDRConsole to listen to the LFM signal?

73,
N8WQ


Simon Brown
 

Reading the article, I think they are using FM without any preemphasis, in SDR Console it'll be W-FM. I suggest you make a data (IQ) recording so you have the signal, demodulation can always happen later.


From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> on behalf of Alan Jones via groups.io <oalanjones@...>
Sent: 26 December 2022 17:46
To: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io>
Subject: [SDR-Radio] Asteroid Bounce Experiment
 
This week the ARRL announced:

https://www.arrl.org/news/amateur-radio-operators-invited-to-participate-in-asteroid-bounce-experiment


There is no information that I can find on how to listen to a LFM
(linear FM) signal.
If someone can enlighten me on this please do 😄

I've been using SDRConsole for two months and I am still learning how to
use the software.
Bravo-Zulu to Simon for writing this excellent piece of software.

Would it be possible to use SDRConsole to listen to the LFM signal?

73,
N8WQ







--
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Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.


sm6fhz
 

Hi all.
Nothing seen here yet. Probably no propagation to KL6 atm, from this QTH.
I doubt my antenna would receive any echoes from the asteroid. You would probably need an array pointing in the right direction (Az - El).
It is inside the broadcast band so some strong BC-stns to fight with.
The signal should show up as a drifting line on the waterfall (9600 kHz +/-15 kHz) in 2 seconds.
It is a very low note ;-) if listened to.
But it should be possible to see in the waterfall.
I will continue to monitor with the Hermes Board Rx and a vertical antenna.
Will make a screenshot if I do see something.
73 / Ingolf, SM6FHZ


Charles Suckling
 

GL, Ingolf!

73

Charlie DL3WDG

On Tue, 27 Dec 2022 at 14:51, sm6fhz <ingolf.fhz@...> wrote:
Hi all.
Nothing seen here yet. Probably no propagation to KL6 atm, from this QTH.
I doubt my antenna would receive any echoes from the asteroid. You would probably need an array pointing in the right direction (Az - El).
It is inside the broadcast band so some strong BC-stns to fight with.
The signal should show up as a drifting line on the waterfall (9600 kHz +/-15 kHz) in 2 seconds.
It is a very low note ;-) if listened to.
But it should be possible to see in the waterfall.
I will continue to monitor with the Hermes Board Rx and a vertical antenna.
Will make a screenshot if I do see something.
73 / Ingolf, SM6FHZ


Pekka Sorjonen
 

Hi,
I don´nt know how short viedos behave as an attachements. We´ll see. 

One of my Kiwis at East Coast Kotka, Finland

http://flydog.psokiwi.net:8074/?f=9600.000iqz8


Alan Jones <oalanjones@...>
 

That is really nice Pekka!
I am seeing the slanted lines but not hearing the sweeping sound.
I know just enough about SDRConsole to be dangerous, lol.
I am still learning all the bells and whistles.

N8WQ

On 12/27/2022 12:36, Pekka Sorjonen wrote:

Hi,
I don´nt know how short viedos behave as an attachements. We´ll see. 

One of my Kiwis at East Coast Kotka, Finland

http://flydog.psokiwi.net:8074/?f=9600.000iqz8

Attachments:



Walter Salmaniw
 

Nice, Pekka.  I'm seeing/hearing the same, but much stronger, of course, into Masset, BC.  I'm recording the IQ on my Perseus SDR here for what it's worth.  I'm not able to see any obvious bounce signals, which reportedly should be 5 sec or so later.