12 Nov 2024
More Cambridge in the sun - NOT amateur radio
PI4 versus FT8
Most beacons use PI4 whereas I would have expected them to use FT8.
Does PI4 confer some advantages? Maybe better sensitivity? In my view, unless there is something about PI4 I don't know about, I would prefer beacons to use FT8 or at least have an FT8 sequence.
Just imagine if the IBP project beacons used FT8 on each band! One could leave a monitor on all day and see what comes through.11 Nov 2024
Cambridge in the sun - NOT amateur radio
We have had "anticyclonic gloom" for what seems like forever. We have seen hardly any sun until today. This was the River Cam outside King's College, Cambridge.
Bare - NOT amateur radio
Take, for example, the horse chestnut trees in the churchyard shown in the photo. A few weeks ago the leaves were there.
Now there are very few revealing the rook's nests. I look forward to these being repaired in the early spring and the first buds.
10 Nov 2024
QDX digital transceiver
This digital-only transceiver from QRP-Labs is really tiny. It can produce 5W, but I have added diodes in the power lead to ensure the RF PA is working without being stressed. This reduces the power out still further, but makes very little difference.
Watery sun - NOT amateur radio
Tomorrow should be sunny when this "anticyclonic gloom" moves away.
The photo shows our churchyard earlier.