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.
 

 

Copyright © David Taylor  Edinburgh

SatSignal home page

Last modified: 2024 Oct 27 at 01:05:11