Harstad Kiruna Lund Oslo Penguin Stamsund RPi 1  3  4  5  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  28 29 Pixie Condor Drammen Floro Ystad Web srv
WAN Network Timekeeping CPU/mem  EUMETCast Europe  DVB-S2 Ecast I/O Losses HVS losses RAMdisk T1/T2 Air °C  ADS-B GPS DOP SNR NTP jitter  How-to

EUMETCast DVB-S2 summary - two receivers

  Ayecka SR1 receiver #1 (BAS)
125 cm dish, Titanium LNB, ~20 m cable
Level below 0 dBm
Higher plot means less signal!
  Ayecka SR1 receiver #2 (HVS-1)
125 cm dish, Titanium LNB, ~10m cable
Level below 0 dBm
Higher plot means less signal!
  Ayecka SR1 receiver #1 (BAS)
10A DVB-S2 service
Es/No dB
  Ayecka SR1 receiver #2 (HVS-1)
10A DVB-S2 service
Es/No dB
  Ayecka SR1 receiver #1 (BAS)
10A DVB-S2 service
Link margin dB
Basic & High Volume service margins
  Ayecka SR1 receiver #2 (HVS-1)
10A DVB-S2 service
Link margin dB
Basic & High Volume service margins
  Ayecka SR1 receiver #1 (BAS)
BER - bit error rate 10E-7
  Ayecka SR1 receiver #2 (HVS-1)
BER - bit error rate 10E-7
  Ayecka SR1 receiver #1 (BAS)
Bad DVB packets
  Ayecka SR1 receiver #2 (HVS-1)
Bad DVB packets
  Ayecka SR1 receiver #1 (BAS)
Bad DVB frames
  Ayecka SR1 receiver #2 (HVS-1)
Bad DVB frames
Traffic from SR1 receiver #1 (BAS)
Traffic to PC Harstad from #1 (selected BAS)
Traffic to PC Alta from #1 (selected BAS)
Traffic from SR1 receiver #2 (BAS+HVS-1)
Traffic to PC Kiruna from #2 (HVS-1 alone)
  PC Harstad - EUMETCast receive-only
Intel i5-4460, 8 GB RAM, Windows-10/64 Pro
Ayecka SR1 IP receiver #1, extra LAN card
TelliCast 2.12.1, 4 GB RAMdisk tmp_directory
MSG-1/2/3, DWDSAT, EARS & Metop-AVHRR
Lost TelliCast packets
  PC Alta - receiver, processing & interactive
Intel i5-760, 8 GB RAM, Windows-10/64-bit
Ayecka SR1 IP receiver #1, extra LAN card
TelliCast 2.12.1, 1 GB RAMdisk tmp_directory
MSG-1/2/3, DWDSAT, EARS & Metop-AVHRR
Lost TelliCast packets
  Main RX PC Harstad
Missed & recovered
TelliCast packets
  PC Alta
Missed & recovered
TelliCast packets
  Ayecka #1 Management port I/O
Input - mostly general network activity
Output - responses to SNMP requests
  Ayecka #2 Management port I/O
Input - mostly general network activity
Output - responses to SNMP requests
  Ayecka #3 Management port I/O
Input - mostly general network activity
Output - responses to SNMP requests

Other periods: day week month year

This data is taken from PCs fed by Ayecka SR1 IP and TBS receivers.  The RF feeds are shown in red.  The antenna is pointed to the EUTELSAT 10A satellite at 10° E, to change to EUTELSAT 10B in July-2023.  Readings are taken every five minutes, and X-axis times are in UTC.  From late September 2017 the main RF feed has been changed to have a 4-way splitter - there's enough signal to allow this, otherwise an in-line amplifier could have been added.  The four outputs are used to feed the three main receivers.  Output two from the LNB is used for BAS/HVS-1, three is used for HVS-2, and output four allows direct access to the LNB for polarisation tests, which would otherwise interfere with routine reception.

Multiple receive PCs are fed from the Traffic LAN ports of the Ayecka SR 1 IP receivers on a private LANs (192.168.10.x/20.x) via GS605 Netgear switches, with 1 Gbps network cards added to the receiver PCs.  An Edimax USB2.0-Ethernet adapter is an alternative because of the need to use USB or better drivers.  Ayecka SR1 #2 receiver takes both BAS and HVS-1.  BAS is received by PC Oslo.  HVS-1 is received and processed by PC Kiruna, and received by PC Lund, processed by PC Penguin..  From Feb-2017 PC Lund monitors HVS-1 & HVS-2 with a single-cable TBS6903 dual-tuner PCIe card, but this arrangement had to be abandoned when HVS-2 was switched to a transponder with a different polarisation in late 2022..

The Ayecka SR1 Management ports are connected to the existing 192.168.0.x house LAN, through which management access is possible from any local PC.
 

125 cm antenna with quad-output LNB pointed at EUTELSAT 10A
                  

Output 1   Output 2   Output 3       Output 4
|| ||     || ||

2-way splitter

|| 2-way splitter     ||
DC-pass        RF only          || DC-pass   RF only  ||
||     ||         || || || ||
Ayecka
SR1  #1
BAS only
(spare)
TBS5927
Ayecka
SR1  #2
BAS & HVS-1
TBS6903
dual-tuner
PCIe
Ayecka
SR1  #3
HVS-2 only
TBS5925
box
USB              pass-through    
       | | | ||
1 Gbps
Ethernet
1 Gbps
Ethernet
      PCIe
     card
1 Gbps
Ethernet
USB 2.0
|
||
||
        | | |  Airspy SDR Mini 
 hardware 

  <======Private 

LAN

===>

<==Private 

LAN

=v==    |

=v       |

|
|     | |         |

   |        |

| |
i5-760 PC
Alta
Receive BAS
Process BAS
i5-4460 PC 
Harstad
Receive BAS
i5-8400 PC
Penguin
BAS recv & process
HVS-1 process
i7-4770K PC
Kiruna
BAS process
HVS-1 receive
HVS-1 process
 i5-6400 PC 
Lund
Recv HVS-1
Recv HVS-2
i7-10700- PC
Oslo

Recv HVS-1
Recv HVS-2
 Tablet test PC
Vega
BDADataEx  CrazyScan
SDR#  Spectrum Spy
Smart DVB & TS analyser
 

 
Copyright © David Taylor  Edinburgh SatSignal home page Last modified: 2024 Oct 27 at 01:05:11