The antenna is now connected to the HF-3 and receiving there. DI2AM is visible, if not too strong. Some WSPR signals are easily visible, with the WSPR program they should decode nicely.
For now I will leave it running, and in the week end the 500 kHz system could come on the TVEPG grabber page. no time now, and tomorrow some non-radio activity.
Still the signals are not all too strong, so a better antenna is required here.
The noise levels, however seem very low here.
Filters: Crystals, LC, Mechanical, SAW, etc.
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*I thought this was an interesting look at filters and crystals. And even
mechanical filters. Remember: Those little SAW containers became the
lapel pi...
1 day ago
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