XW-2 satellites outside international bandplan, who bothers ?
Hi AMSATs,
I heard about the new satellites launched from China, which includes many transponders. For long time I have not been active anymore due to private reasons, but this great news triggered me to check the news again.
It is great to see that transponder activities grow, but at the same time I feel that amateur spirit is gone when even international bandplans are violated on large scale. When I read the AMSAT-BB threats it seems that nobody bothers at all.
In the past there were many discussions about AO-7 downlink that is outside the satellite band, while it was due to regulation change after launch. This was outside to hands of the satellite builders. Now we have satellites that work outside the satellite bandplan even known before launch. This is tolerated ? When this is tolerated then my next transponder design will be much easier to design for me....
I hope that someone at CAMSAT will do something about this, and I wonder why they allow this to happen at all...
From technical point off view, great work and continue with making amateur satellites (ofcourse inside the satellite bandplan).
73 de PE1RAH William Leijenaar
They may be in space, but the transponders have not been activated. So yes, someone bothers.
-----Original Message----- From: William Leijenaar [email protected] To: amsat-bb AMSAT-NA [email protected] Sent: Sun, 4 Oct 2015 0:25 Subject: [amsat-bb] XW-2 satellites outside international bandplan, who bothers ?
Hi AMSATs,
I heard about the new satellites launched from China, which includes many transponders. For long time I have not been active anymore due to private reasons, but this great news triggered me to check the news again.
It is great to see that transponder activities grow, but at the same time I feel that amateur spirit is gone when even international bandplans are violated on large scale. When I read the AMSAT-BB threats it seems that nobody bothers at all.
In the past there were many discussions about AO-7 downlink that is outside the satellite band, while it was due to regulation change after launch. This was outside to hands of the satellite builders. Now we have satellites that work outside the satellite bandplan even known before launch. This is tolerated ? When this is tolerated then my next transponder design will be much easier to design for me....
I hope that someone at CAMSAT will do something about this, and I wonder why they allow this to happen at all...
From technical point
off view, great work and continue with making amateur satellites (ofcourse inside the satellite bandplan).
73 de PE1RAH William Leijenaar
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El 04/10/15 a las 10:26, David G0MRF via AMSAT-BB escribió:
They may be in space, but the transponders have not been activated. So yes, someone bothers.
But they're transmitting telemetry on several frequencies in the range 145.600-145.800, which is normally used as 2m repeaters outputs in region 1. However, it's true that the transponders of XW-2A through XW-2D haven't been activate and XW-2E and XW-2F transponders are active. It happens that the one which have transponders downlinking outside the satellite band are XW-2A to XW-2C, so whether this is intentional or just a coincidence, I have no clue.
73,
Dani M/EA4GPZ.
participants (3)
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Daniel Estévez -
David G0MRF -
William Leijenaar