AMC-6 is on the move...

cyberham

SatelliteGuys Pro
Jun 16, 2010
2,765
600
Nova Scotia
High in the sky for me at 72W. Give us something new on Ku. Things are getting stale.

Added: AMC 6 website says 83W. Wiki says 72W. Lyngsat doesn't list. I guess we'll find out soon.
 

kofi123

SatelliteGuys Pro
Apr 13, 2014
249
402
Minnesota
There's a swap going on. AMC-6 is moving from 83 °W to 139 °W and AMC-18 will move from 139 °W to 83 °W. Apparently, SES wants to modify the footprint of the satellite at 139 °W to include more of northern Canada, but needs a different satellite than AMC-18 to do so.

AMC-6 will only be used for C-band at 139 °W and AMC-18 only has a C-band payload, so unless something else is moved to 83 °W, there won't be any Ku traffic there.

The narrative filed with the FCC - https://licensing.fcc.gov/myibfs/download.do?attachment_key=2411746
 
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JFOK

SatelliteGuys Pro
Aug 12, 2012
794
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Cape Cod - MA.
Hi All,

I guess SES has faith that 20 year old AMC 6 will be able to continue long past it’s retirement date which was 2015.
AMC 18 ain’t no spring chicken either. It’s retirement date is this year. I guess as long as both have enough propellant SES will give these old girls a chance to prove that age is just a number.

John
 
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kofi123

SatelliteGuys Pro
Apr 13, 2014
249
402
Minnesota
Well, aren't you a Debbie Downer today.
Well, if you don't like the news, keep in mind Ku-only Horizons 2 is supposed to be moving (back) to 74 °W by the end of the year. Whether or not there will be video there is unknown.

Hi All,

I guess SES has faith that 20 year old AMC 6 will be able to continue long past it’s retirement date which was 2015.

John
The license for AMC-6 was extended out to November of 2023 and I'm pretty sure I remember reading that there would be enough fuel to maintain geostationary orbit for a few years after that even. That satellite suffered a malfunction of its solar array several years ago which results in not all of the available transponders being usable simultaneously. I wonder if that is somehow a factor in how long that satellite is expected to last.
 

JFOK

SatelliteGuys Pro
Aug 12, 2012
794
594
Cape Cod - MA.
kofi123,

If it weren’t for the propellant issue, satellites could easily go 25-30 years or even longer barring a collision from a space object or a malfunction.
Amsat-Oscar7 is still operating. Was launched in 1974.

John
 
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907TECH

Thread Starter
SatelliteGuys Pro
Aug 29, 2018
288
303
Alaska
There's a swap going on. AMC-6 is moving from 83 °W to 139 °W and AMC-18 will move from 139 °W to 83 °W. Apparently, SES wants to modify the footprint of the satellite at 139 °W to include more of northern Canada, but needs a different satellite than AMC-18 to do so.

AMC-6 will only be used for C-band at 139 °W and AMC-18 only has a C-band payload, so unless something else is moved to 83 °W, there won't be any Ku traffic there.

The narrative filed with the FCC - https://licensing.fcc.gov/myibfs/download.do?attachment_key=2411746
That is not the reason for the move, but it is part of the narrative.
 

cyberham

SatelliteGuys Pro
Jun 16, 2010
2,765
600
Nova Scotia
Satbeams says 33.6 dBW signal in NM. If so, a 3m dish should receive. ARCS has a 5.5 dB C/N lock.

Added: Lyngsat says 40+dBW signal. If correct, should be receivable on a smaller C-band dish.

Sent from my SM-G950W using the SatelliteGuys app!
 
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907TECH

Thread Starter
SatelliteGuys Pro
Aug 29, 2018
288
303
Alaska
Satbeams says 33.6 dBW signal in NM. If so, a 3m dish should receive. ARCS has a 5.5 dB C/N lock.

Added: Lyngsat says 40+dBW signal. If correct, should be receivable on a smaller C-band dish.

Sent from my SM-G950W using the SatelliteGuys app!
I find those C/N numbers curious, using commercial equipment we would have no chance to lock at 5.5db C/N. Link budget is usually around 17 db, with a fade margin of 5-6 db. When the operators uplink drops a few DB they get complaints from the villages on loss of video.
 
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