Turksat 4A Ka Band A now active

Vipersan

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Some time back I substituted a Ku lnb for the SL3 to get rough positioning for 42 East ..and stored this position in the Gbox ..
So I'm fairly sure the SL3 is now pointing at 42 East ...but maybe be clipping the Troublesome Tree and as a result may not be getting maximum signal..
That said I'm 99% sure this peak which appears in a scan of Ka band A in both H and V .....is therefore a circular polarised Carrier ...
No way of course I can tell if RHCP or LHCP ...
Nonetheless I'm thinking this is from Turksat 4A (18600 approx.)
Turksat 4A also has a transponder in Ka band B but no sign of anything in this higher band as yet..
Time will tell I guess ..
As to possible signal levels ..
Having looked at the footprint ...of 4A in Ka I believe it _does_ extend to reach the UK albeit fringe..
rgds
VS
 

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Llew

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Good one VS. Can't do Ka Band A myself with my gear unfortunately.
 

Vipersan

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..a bit stronger atm ...and although still just a carrier ...enough to get a 'smoke ring' ...
unmodulated of course..
 

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Vipersan

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Ha ha ..
reported in the Hughes thread that Turksat 4a was dormant atm in Ka ..
How wrong was I ..
fully functional atm with this transponder ..
and with broadcast data ..
;)

Ignore that the scan indicates 36 East ...this is 42 East I promise you..
 

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Vipersan

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The pics ....
;)

present in both H and V scans roughly equal amplitude using the modded SL3..so can only conclude the polarity is circular
rgds
VS
 

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Vipersan

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Very good, the new findings just keep on coming!
Note that 19750 L 2222 was reported during the tests in April, at 50° East:
http://sdtv.gr/smf/index.php?topic=38424.0
...and that was a problem for me ..as I couldn't see 50 East with Carl ..
I had to wait till 4a moved to final location to clear my troublesome tree..
rgds
VS
 

Analoguesat

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The pics ....
;)

present in both H and V scans roughly equal amplitude using the modded SL3..so can only conclude the polarity is circular
rgds
VS

Almost certainly the first Niger channel to be carried in Ka! :D
 

Vipersan

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Indeed AS ..you are probably right ...
but I do wonder if the Ka A transponder will eventually be used for data ??
Dull indeed if this is the case ...but She does carry at least one transponder for Ka B so fingers crossed this will be data leaving the current one for interesting DXing.
;)
 

Llew

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Excellent VS. Another one to try for - I really must get the Ka LNB fixed up on the Gibby...
 

Vipersan

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The 'test' broadcast at 18669 appears t0 have ceased in the last hour..
I'll check in ocasionally to see ...but I suspec this area of the spectrum is being prepared for data broadcast..
Hope I'm wrong.
rgds
VS
 

Vipersan

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Currently back on ..testing ...
Just in case you want to try for it Llew ??
rgds
VS

10 db here...
 

Llew

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Currently back on ..testing ...
Just in case you want to try for it Llew ??
rgds
VS

10 db here...
I would need to put the LNB on the Gibby, but with my luck it'll have gone by then. Perhaps you could check it over a period VS, to see if it remains on?
 

Vipersan

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No probs Llew..
Comes and goes mate..
Was off for over an hour or so ...or at least very low signal ..
Back on atm..
rgds
VS

,,perhaps you should get a multifeed bracket for the Gibby ?
 

Llew

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Yup, have that one at 18668 VS. A whopping 12dB.
 

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Vipersan

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Nice one Llew ..
New it was a big signal and 12db is huge..but Carl has this one partly masked by the TT..so the most I get is 10db.
well done buddy ..
worth the climb ??
 

Llew

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Certainly was. New Ka stuff is rare, thanks for the find.
 

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The Ka-band of the Turksat 4A, transmits in LHCP (see attached image).
 

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Vipersan

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The Ka-band of the Turksat 4A, transmits in LHCP (see attached image).
Thanks Marcus ..
We knew it was circular but both of us are using linear lnbs ..so guesswork as to RHCP or LHCP..
all info helps
rgds
VS
 
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