Unknown signal from around 98e-99e

  • I've found relatively strong carrier 12600 H from around 98e-99e sky position. Unfortunately, there is no lock for me.
    A couple of month before there wasn't any interesting signal.


    Any ideas, what satellite this is from? May it be the new ChinaSat 2E (98e), that was successfully launched a month ago?

    https://www.flysat.com/launches2021.php
    At least, I doubt that this is ChinaSat 11 (98e), there is no info about its transponders in upper band 12500-12750 MHz.

    I've attached my spectrums of that far eastern part of the arc.
    There are also weak signals in the range 12200-12750 MHz in Vertical pol from Asiasat-5 (100.5e) in Ku band.
    The dish is offset Supral 120 cm.

  • Hi tempo,

    When I get to this position, I'll try to see what and how. But forgive me for not knowing, what area are you in to know if I have a chance of catching this satellite? I think you're so far east of my area that I wonder if reception is possible?

    As you know, each zone has its advantages or disadvantages in relation to the satellites we want to catch. Therefore, as I said on another topic, it is advisable for each user to mention the area in which they live. I emphasize, Area,and not locality, because many users do not want to know where they live. It is understandable.

    Thanks :3:

    7 antennas,including 2 of 150cm,one T90 with 16 lnbs
    lnb:Inverto Black Ultra with scalar rings and many Ku lnbs,
    C-band LNB:ESX241,Galaxy Inovations,EuroStar,MTI 20K,NS741U C/Ku,Inverto Single C-band Flange,lnb Chaparral Servo Motor & Skew Control
    LNB Ka:R9216DF XWM,Hughes FSS 19.7-20.2 GHz,
    6 satellite receivers,2 Meters,
    7 PC cards(tbs6983,6903,6590,6522,6209,2603,6909X,6903X,6504),3 tuners usb-tbs5927,tbs5925 & SkyStar USB 2 HD,
    Satellite reception between 100.5E-50.0W,
    Loc:Romania :3:

  • Hi satesco,
    I've added my info to signature.

    120cm offset motorized dish, 22W - 103E arc, Inverto Black Ultra (Ku-band) + DreamTech GTP-D22 Twin (C-band circular) + Triax TKT001 (Ka-band B)
    47.5N 42.2E, Russia

  • Maybe a beacon signal from Chinasat 2E, but only speculation from me.

    If it's possible for you, try with IQMonitor or crazyscan.


    On lyngsat the inclined is 23.6°, now have Chinasat 2E 0.2°, the position has stabilized.

    Wer nicht die Antennengröße und den ungefähren Standort angibt, postet sinnlos, sofern es um eine Signalerfassung geht.

    If you don't specify the antenna size and the approximate location, posting is useless if it's about signal acquisition.

    • Offizieller Beitrag

    I think the signals in high band are ChinaSat 11, or maybe ShenTong-2E testing (see below).


    Although there is no public frequency plan, ChinaSat-11 has transponders in both 11.45...11.7 and 12.25...12.75 GHz bands.

    See for example here (Indonesian): https://www.facebook.com/group…mment_id=1194728690894571

    "The Old transponder on ChinaSat 11 at 98.0°E to one is 12600 v 43200 total channel 45 and the second transponder is 12650 v 43200 as well as 45 channels. In June 2020 the second TP was off due to a disruption to my band's network."

    Probably as so often there are pairs of transponders available of opposite polarisation, so 12600 both in H and V.


    Since August, ChinaSat 11 has moved a bit from 98.0°E to 97.9°E.

    This was to give room for the new ShenTong-2E (ChinaSat-2E), that arrived at 98.0°E (or 98.05°E) also in August.

    Inclination is just 0.2°, probably In-Orbit Testing is still going on.

    At 98.25°E there was already ShenTong-2A (ChinaSat-2A).


    ShenTong are military satellites, presumably using Ku-band but I've never seen any signals reported from this satellite series.

    It's a bit unfortunate that ShenTong satellites are also simply called ChinaSat, suggesting they are from China Satcom with commercial use, but they really are of the PLA (People's Liberation Army).

    Location: Oss, NL, 5.5°E 51.8°N. Rx: Dr.HD F16, TBS 5927.
    Laminas 120cm 1°W...68°E, T-55 9/13/19/23/28/39/42/45°E.

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