Es'hail-2 Ground Station

The Es'hail-2 spectrum monitor is planned to be installed at Goonhilly Earth Station.

RF

The hardware consists of a 1.3 Metre dish with a dual LNB. The separate horizontal and vertical feeds go to 2 Airspys which are connected to a Linux server.

The indoor LNB Power Unit has been constructed:

The GPS reference is a Leo Bodnar unit programmed to produced 10 MHz (for the Airspys) and 25 MHz (for the LNB, but not implemented yet). The settings for the reference to produce these 2 frequencies were not straightforward (as the 2 outputs on the Leo Bodnar unit need to be linked) but are here for reference:

More details to follow

G8GKQ 27 Aug 18

Server

Hardware

i7-2600 CPU
16GB DDR3 RAM
Supermicro Workstation Motherboard
500GB Samsung 850 EVO SSD
750W Corsair TX Power Supply

Software

Ubuntu Server 18.04
Nginx mainline
airspy_tcp fork (source)
narrowband WebSDR by PA3FWM (homepage)
wideband spectrum monitor (source coming soon)

Network

Ports open: SSH, HTTP, HTTPS