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EUMETCast comparison of transponders 1 & 2

Link Margin (some are calculated)
Transponder 2 - 10E 11387H
TBS6903
T2
Ayecka SR1 #3
T2
Transponder 1 - 10E 11263H
TBS6903
T1
Ayecka SR1 #2
T1
BS/HVS link margin

TelliCast
- lost packets
Transponder 2 - 10E 11387H

HVS-2 lost packets
T2
PC Lund TBS6903

HVS-2 lost packets
T2
PC Stamsund Ayecka SR1
Transponder 1 - 10E 11263H

HVS-1 lost packets
T1
PC Lund TBS6903

Traffic - all PIDs
Transponder 2 - 10E 11387H
TBS6903
T2
Ayecka SR1 #3
T2
Transponder 1 - 10E 11263H
TBS6903
T1

SNR - signal-to-noise ratio
Transponder 2 - 10E 11387H
TBS6903
T2
Ayecka SR1 #3
T2
Transponder 1 - 10E 11263H
TBS6903
T1
Ayecka SR1 #2
T1

BER - bit error rate
Transponder 2 - 10E 11387H
TBS6903
T2
Ayecka SR1 #3
T2
Transponder 1 - 10E 11263H
TBS6903
T1
Ayecka SR1 #2
T1

RF level - higher plot means lower signal
Transponder 2 - 10E 11387H
TBS6903
T2
Ayecka SR1 #3
T2
Transponder 1 - 10E 11263H
TBS6903
T1
Ayecka SR1 #2
T1

Other periods: day week month year

125 cm antenna with quad-output LNB pointed at 10A       
Output 1            Output 2                            Output 3                     Output 4   
|| || || ||
TBS5925
USB RX
     ||
||
           ||
||
Splitter
DC    N/C
| || || ||           
USB 2.0

 
i5-3330 PC
Stamsund
 RX & process
Ayecka SR1
IP receiver #1
Basic Service only
 
Traffic    Management
  port               port 
Ayecka SR1
IP receiver #2
HVS only
 
Management    Traffic
  port                port 
TBS6903
PCIe
 
 i5-6400 PC
Lund
Receive HVS 1 & 2
|            

I

      I                           |
v          

I

      I                        <===

==

==Private LAN 2==>

v           <====House LAN==>    |
|            I v

<====Private LAN 1===>

I v
| | Internet via router v
v v v
v v v

#

i5-760 PC
Alta
Receive BS
Process BS

#
 

i5-4460 PC 
Harstad
Receive BS
#

i7-4770K PC
Kiruna
Receive HVS
Process BS ex Harstad

# -
1 Gbps LAN card
 

Edimax LAN-to-USB also useful     

This data is taken from PCs fed by two Ayecka SR1 IP 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.  

Receive PCs are fed from the Traffic LAN ports of the Ayecka SR 1 IP receivers on two private LANs (192.168.10.x/20.x) via GS605 Netgear switches, with 1 Gbps network cards shown as # added to the receiver PCs.  An Edimax USB2.0-Ethernet adapter is an alternative because of better drivers.  From Jan 2015, PC Stamsund has been fed from a TBS5925 USB box.  From Feb 2016, SR1 #2 receiver takes only HVS received on PC Kiruna, and receive-only on PC Lund.  From Feb-2017 PC Lund monitors HVS-1 & HVS-2 with a single-input 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.

Transponder spectrum & constellation comparison

 
Copyright © David Taylor  Edinburgh SatSignal home page Last modified: 2017 Sep 20 at 12:03:53