Last week I managed to finish the input filters for the amplifier. I did test them a bit and it seem to be working fine on 160-15m. I am not sure that I will be able to get it running well on 10m but we will see. Not that it will matter much since we don’t have any propagation on that band anymore.
Today I did some work attaching some cards and power supplies into the 19″ box which will be used to control the amplifier. Its got a control card, power meter and stepper driver card. The power supplies are switched ones for 24,12 and 5v. The last one is used for the stepper motors. There are a lot of D-SUB connectors, I added a few extra just in case for future improvements.
The idea is that the amplifier will be controlled from the openASC system. So when we change band in the shack the amplifier will tune itself automatically. At the beginning we will just have it preset-tuned but I might consider making it fully automatic in the future. The new power meter boards improved frequency counter makes it possible to automate the in-band tuning while I will use band data to control the band.
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