Today I got the 10GHz RX beacon monitor outdoor work done:
- extended the stacked fiberglass mast by about 60cm, and got a modified LNB mounted just under the feed point of the 2m/70cm vertical used for monitoring "Raketten" (a local 2m/70cm cross band repeater), and turned the LNB in the correct direction, close to WSW.
- got the cables in through the wall, so the utility room window can be closed properly again.
- connectors for the RX system and the reference frequency system (F-connectors)
- a satellite signal splitter for the 25MHz signal was sufficient to supply both the beacon monitoring system and the QO-100 system with a decent temperature stability.
Future improvements:
- Improving the reference frequency generator(s). Will probably use, initially, a 25MHz ref for the beacon monitor LNB and maybe a second 25.xxxx ref for the satellite RX, providing an IF of 434MHz, so a "proper" receiver can be used. I have TCXO(s) for those two frequencies.
- converters for both LNBs for using amateur band receivers (2m, 10m, maybe 6m) as base receivers. Mostly for use with better CW filters than the AR-8600s have (they have no CW filter, and a rather poor SSB filter - Whether they can be replaced/improved I do not know - also lowest frequency step is 50Hz, too much for serious weak signal work - even good narrow filter CW work).
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