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Author Topic: Metior Monitoring - what's needed?  (Read 2809 times)

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Offline andrew s

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Metior Monitoring - what's needed?
« on: 10:35:05, 30 August, 2009 »
Hi – Just thinking of trying meter monitoring and would like to check I have the right idea of what’s needed plus a few questions.

1 Arial suitable for target frequency (50MHz range) reasonable gain but still wide field (2 or 3 element H style)

2 Receiver/ Scanner capable of receiving frequency in USB mode as per Peter Shah post (Why USB Mode?)

Now I start to get very unsure

3 Receiver/Scanner audio output connecter to a PC for monitoring

4 Spectrum Lab software to display the results (How is this set up?)

Is this about right any more details or advice welcome. I am looking at the IMO site as posted before.

Thanks Andrew

Offline Peter Shah

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Re: Metior Monitoring - what's needed?
« Reply #1 on: 11:53:08, 30 August, 2009 »
I'm not really an expert on it, so please correct me if I'm  wrong............h-style antenna is not like a yagi, it works both ends where a yagi has a reflector on the back. I would think the Yagi is better, but the H type still works well. As far as i know you can only get a tone or ping from using USB or CW modes in AM you should hear a portion of the audio from the channel.
Spectrum lab is pretty much setup in default for it....just a few options on the display but you can leave it as is if you want....just plug in the headpone socket into your sound card of your pc and ajust the volume levels.
an AG12 and a few other bits

Offline Peter Shah

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Re: Metior Monitoring - what's needed?
« Reply #2 on: 12:51:35, 30 August, 2009 »
this looks like a good aerial...it was recommended by a chap in Belgium who does this type of thing.......he has a beacon running for meteor scatter at 49.99MHz....... i might get one myself 8)
http://www.radioworld.co.uk/~radio/catalog/a503s-cushcraft-yagi-p-4172.html
an AG12 and a few other bits

Offline andrew s

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Re: Metior Monitoring - what's needed?
« Reply #3 on: 16:05:22, 30 August, 2009 »
Thanks Peter very helpful I think I get it now. By the way what receiver are you using?

Offline Peter Shah

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Re: Metior Monitoring - what's needed?
« Reply #4 on: 18:33:56, 30 August, 2009 »
My reciever is an old alinco djx10 hand scanner....it has full frequency with no blocks and all modes WFM, NFM, CW, AM, USB, LSB,  and i got it cheap off ebay :thumbup:
http://www.radioscan.co.uk/djx10.html
an AG12 and a few other bits

Offline michaeloconnell78

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Re: Metior Monitoring - what's needed?
« Reply #5 on: 19:47:50, 30 August, 2009 »
Just wondering, does the direction of the aerial matter much, and if so, how do you test it for a signal below the horizon?

Thanks,

Michael.
Regards,
Michael
www.astroshot.com
Gemini G41 Observatory+ Mount; 16" LX200 SCT, TEC140; Pentax75SDHF; PST CaK, PST Ha.

Offline Peter Shah

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Re: Metior Monitoring - what's needed?
« Reply #6 on: 21:22:47, 30 August, 2009 »
as far as i know directional anennas are best for the job, some have got good results with a full frequency aerial...but i dont think they have enough gain to do the job properly. i just point the aerial at about 30 degrees and in the direction of the radius...the H aerial has quite a wide beam so thats is too critical
an AG12 and a few other bits

Offline andrew s

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Re: Metior Monitoring - what's needed?
« Reply #7 on: 09:35:28, 31 August, 2009 »
Thanks for the receiver info Peter - Andrew

Offline michaeloconnell78

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Re: Metior Monitoring - what's needed?
« Reply #8 on: 22:02:38, 31 August, 2009 »
thanks peter.

michael.
Regards,
Michael
www.astroshot.com
Gemini G41 Observatory+ Mount; 16" LX200 SCT, TEC140; Pentax75SDHF; PST CaK, PST Ha.

Offline Neo_uk

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Re: Metior Monitoring - what's needed?
« Reply #9 on: 20:02:50, 29 March, 2010 »
Hi,
Dont go spending money on a aerial for meteor scatter detection you can make a dipole for the 6mtr band (52Mhz) out of plane old cooker wire (flat twin and earth cable) each leg needs to be 1.372 mtrs long then all you do is connect the outer braid of your coax to one leg and the centre of the the coax to the other .You then support the antenna at each end with either a nylon cord or washing line will do to insulate it from your supports.As for direction the most common frequencies you will use are for tv stations in either spain or Portugal so if you can place the legs in a north / south orientation.

hope this helps chris
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