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6m ISCAT Random Calling Frequency

Author OE5MPL
Forums Member
#1 - Posted: 17 Sep 2010 15:52
Dear ISCAT User

It was decided in Vienna IARU Reg1 meeting 2010, to adopt a paper from G4ASR concerning the usage of the 50 MHz MGM calling frequency. As you can see below there exists only one MGM random calling frequency in IARU Reg.1 and this is on 50.230 Mhz.

In order to avoid QRM with JT6m users it is suggested to use in the meantime for ISCAT 50.240 MHz as random MGM calling frequency.

This frequency is in the range of the IARU Reg.1 recommendation to use 50.210 - 50.250 MHz for MGM Meteor Scatter/IONO DX.
IONO DX could be inserted at next conference in South Africa.

Peter A. Maireder OE-VHF Manager

the whole C5 papers could be downloaded here: http://www.oevsv.at/export/oevsv/download/IARU/Vienna_2010_C5_Meeting_Minutes.pdf

Notes of the meeting of Committee C5 – 20/21 February 2010
Document B04
Subject 50MHz BAND PLAN – CHANGES TO METEOR SCATTER USAGE
Society Radio Society of Great Britain
Contact David Butler G4ASR
Recommendation:
To delete within the 50MHz Band Plan –
• 50.200MHz: MS centre of activity
• 50.225MHz: JT44
• 50.260 – 50.280MHz: FSK441
• 50.270MHz: FSK441 calling frequency
To introduce within the 50MHz Band Plan –
• 50.230: Meteor Scatter (MGM) calling frequency
• 50.210 – 50.250MHz: Meteor Scatter (MGM)
After a discussion the recommendation was put to the vote: 16 for the recommendation. DARC
USKA abstained.
On this basis, the recommendation will be put forward to the EC for ratification.
Author G0ISW
Forums Member
#2 - Posted: 22 Jun 2013 12:52
As at June 2013 when trying to find ISCAT on 50 MHz I am advised it is centred around 50.235 MHz.

However the new Region band plan introduced on 1st January 2012 suggests all such data modes should be above 50.300 MHz, but operators haven't transitioned as yet.

50.230 MHz JT6M
50.235 MHz ISCAT
50.276 MHz JT65
50.280 MHz PSK2k
50.293 MHz JT9-1

All above in use currently within Europe, I haven't found myself any activity elsewhere.

73 de Philip G0ISW
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