SNR difference - from two separate Ayecka SR1 receivers
	SNR difference TP1 - TP2 When BAS/HVS-1 is stronger No data 2023-Jul-24 to Aug-02
	SNR difference TP2 - TP1 When HVS-2 is stronger Only after 2023-Jul-24
HVS Link Margin
Hotbird 13G 14 11470 MHz V
	TBS6903 HVS-2 link margin
	Ayecka SR1 #3 HVS-2 link margin
Hotbird 13G 1 11219 MHz H
	Ayecka SR1 #2 HVS-1 link margin
	Ayecka SR1 #1 HVS-1 link margin
TelliCast - lost packets
Hotbird 13G 14 11470 MHz V
	HVS-2 lost packets TP2 PC Lund TBS6903
	HVS-2 lost packets TP2 PC Oslo Ayecka SR1 #3
Hotbird 13G 1 11219 MHz H
	HVS-1 lost packets TP1 PC Oslo Ayecka SR1 #2
	HVS-1 lost packets TP1 PC Kiruna Ayecka SR1 #2
Traffic
Hotbird 13G 14 11470 MHz V
	TBS6903 MODCOD: 16APSK2/3 All PIDs
	Ayecka SR1 #3 MODCOD: 16APSK2/3 PIDs: 610
	Ayecka SR1 #3 MODCOD: 16APSK2/3 PIDs: 610 PC Oslo HVS-2 traffic
Hotbird 13G 1 11219 MHz H
	Ayecka SR1 #2 BAS & HVS-1 MODCOD: 8PSK3/5 16APSK2/3 PIDs: 100 500 600 601
	Ayecka SR1 #2 BAS & HVS-1 PC Kiruna HVS-1 traffic
	Ayecka SR1 #2 BAS & HVS-1 PC Oslo [BAS]/HVS-1 traffic
	Ayecka SR1 #1 BAS & HVS-1 MODCOD: 8PSK3/5 16APSK2/3 8PSK3/5 alone until May 21 PIDs: 100 500 600 601
SNR - signal-to-noise ratio
Hotbird 13G 14 11470 MHz V
	TBS6903 TP2
	Ayecka SR1 #3 TP2
Hotbird 13G 1 11219 MHz H
	Ayecka SR1 #2 TP1
BER - bit error rate
Hotbird 13G 14 11470 MHz V
	TBS6903 TP2
	Ayecka SR1 #3 TP2
Hotbird 13G 1 11219 MHz H
	Ayecka SR1 #2 TP1
RF level - higher plot means lower signal
Hotbird 13G 14 11470 MHz V
	TBS6903 TP2
	Ayecka SR1 #3 TP2
Hotbird 13G 1 11219 MHz H
	Ayecka SR1 #2 TP1

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

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

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

Transponder spectrum & constellation comparison