Beiträge von hvdh

    Hier sind jetzt 12265/12303 V 19.0 dB, und 12437 H 16.5 dB (richtung 52.0° Ost).
    Der unterschied zwischen dir und mir von 2.5 oder 2 dB ist so viel, das ich die footprints nicht trauen kann... schlechter referenz also. :37: Soviel daneben kann es nicht sein bei dir denke ich. Danke für das probieren!

    Wieviel dB geben die 3 TurkmenAlem transponder bei dir, stephan94 ?
    Wundere mich ob Yahsat tatsächlich schwacher ist bei dir, oder etwas am schlüssel nicht stimmt.

    The band 4400...4500 MHz is for fixed & mobile (military) only.
    A satellite using this band would be, at least, very sercretive...


    Extended C-band for satellite is 4500...4800 MHz.
    (Fixed & mobile military also uses this band)


    So I think you get these signals from a sidelobe...
    If your dish farm has a few spares, :11: you could scan the horizon for the direction of such earthly signals.


    Edit: And the spikey stuff in the band 4200...4400 MHz, could be radio altimeters aboard aircraft.
    http://www.ntia.doc.gov/files/…00.00-4400.00_01MAR14.pdf

    I solved it, after checking the frequency plans!
    For 33D, 11608 H has 14061.5 V uplink.
    For 33C, 14061.5 H will give 12562 V downlink.


    Well, on 12562 V 3819 3/4 8PSK we find feed ITA 175 GREEN RM.


    So the cross-polarised signal of the feed uplink penetrates the open (unused) 33D transponder.

    Something new again on 12169 H 27500.
    Up to 5.9 dB is not enough to lock here, but very close if it's DVB-S2 QPSK 8/9 like the other three MENA transponders.

    Sorry I overlooked your previous post Feedsat. So congratulations with finding AEHF 2 again! Is it slightly East or West of 19.2°E ?


    We'll have to wait if, and where, ABS-3 will use Ka-band.
    If in military band too, then indeed 16.0°W next to 16.5°W would have been quite close, though both are inclined.

    Yes that is a SBIRS-Geo 2 frequency, I think it's known already here, by you or the others at satellites.co.uk.


    About AEHF-2, I just wanted to say the spikes should be missing at 16.5°W, and while still on the move, will probably not be transmitting!

    No clear sign of movings yet but I'll keep an eye.


    Wondering how to distinguish 33B and 33C in the first place? They have the same 72 MHz transponder layout.


    But according Eutelsat's latest Reference Document, 33B will end "stable orbit" Q4 of this year. Indeed inclination is building already.


    An end date for 33C is "forgotten" in that document.


    33D (ex 8WC, Hot Bird 6) will arrive next week. Different 33/36 MHz transponder layout. Surely services will have to move for this.

    I'm not home to check this, but Flysat reports the Digiturk transponder 11727 V of Turksat 2A has left a week ago.
    So now a pure carrier instead?
    Carriers can penetrate into the spectrum well off focus. If really centered at 39°E, maybe 2A is moving West?


    Edit: now I see you reported this same peak in the Turksat thread. So yes indeed, this peak is of Turksat. :50:

    Zitat

    Original von hvdh
    The only non-inclined satellite that might be in the neigbourhood is GSSAP 1, a surveillance satellite from US Navy.


    I will mention when a new TLE is available to confirm or destroy this theory...


    New TLE of 2 October has GSSAP 1 at 10.2°W, still moving East with 0.4°/day.


    So this mystery continues...