Alta | Harstad | Kiruna | Lund | Oslo | Penguin | Stamsund | RPi 1 3 4 5 7 8 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 | 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 |
(Was DVB-S until 2014-Sep-01) | |
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Edinburgh, GB Summary page Ayecka SR1 receiver #1 125 cm dish, Titanium quad LNB, ~20 m cable BS only SNR dB |
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Edinburgh, GB Summary page Ayecka SR1 receiver #1 125 cm dish, Titanium quad LNB, ~20 m cable BS only Link margin dB (Basic, High-Volume) |
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SkyStar 2.6D PCI card on DVB-S service with antenna pointed at 10A satellite SNR dB x 10 Signal Quality % PC Feenix |
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Throughput SR 1 IP receiver #1 |
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Throughput PC Alta |
Packet loss: | ![]() |
PC Feenix - EUMETCast receive-only TelliCast 2.4.4a, 500 MB RAMdisk for FSY files Ayecka SR 1 IP receiver, extra LAN card AMD 64 3200+, 3 GB RAM, Windows XP Pro SP3 MSG-2, MSG-3, DWDSAT, EARS-AVHRR & Metop-AVHRR |
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PC Alta - receiver, processing & interactive Ayecak SR 1 IP receiver, extra LAN card TelliCast 2.5.17, tmp_directory on hard disk Intel i5-760, 8 GB RAM, Windows-7/64-bit MSG-2, MSG-3, DWDSAT, EARS-AVHRR & Metop-AVHRR |
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BER (Bit Error Rate) Ayecka SR 1 #1 |
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BER (Bit Error Rate) Skystar PCI on PC Feenix |
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FSY size 500 MB RAMdisk PC Feenix |
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. 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 purely for HVS-1, three is used for HVS-1 and HVS-2 in a single-cable, dual-tuner arrangement, and output four allows direct access to the LNB for polarisation tests, which would otherwise interfere with routine reception.
Two 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 better drivers. PC Penguin is fed from a TBS5927 USB 2.0 box. Ayecka SR1 #2 receiver takes only HVS, received and processed by PC Kiruna. From Feb-2017 PC Lund monitors HVS-1 & HVS-2 with a single-cable TBS6903 dual-tuner PCIe card.
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 | ||||||||||||||
|| | || | || | || | ||||||||||||||
4-way splitter |
|| | Amp + 2-way splitter | || | ||||||||||||||
DC-pass | RF only | RF only | RF only | || | DC-pass | RF only | || | ||||||||||
|| | || | || | || | || | || | || | || | ||||||||||
Ayecka SR1 #1 BS only |
(spare) | Ayecka SR 1 #3 HVS-2 only |
(spare) |
Ayecka SR1 #2 HVS-1 only |
TBS6903 dual-tuner PCIe |
(spare) | TBS5925 box USB pass-through |
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| | | | | | | | | | || | ||||||||||||
1 Gbps Ethernet |
1 Gbps Ethernet |
PCIe card |
USB 2.0 | |
|| || |
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| | | | | | | | Airspy
SDR Spectrum analyser |
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<===========Private |
LAN |
====> |
<=Private LAN=> | | | | | ||||||||||||
| | | | | | | | | | | | ||||||||||||
i5-760
PC Alta Receive BS Process BS |
i5-4460 PC Harstad Receive BS |
i5-8400
PC Penguin BS rec & process |
i7-4770K PC Kiruna Process BS HVS rec. & proc. |
i5-6400
PC Lund Receive HVS 1 & 2 |
Tablet PC Vega Tests |
Copyright © David Taylor Edinburgh | SatSignal home page | Last modified: 2022 Mar 27 at 02:02:42 |