Category Archives: Hamradio


Microstrip Hairpin Filter

Just some tests with Microstrip filters on FR4. Simulation Output  

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Portable Multi Band Dipole

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Maas CRT270 Encoder Problem

    I was (still am) really happy with my chinese Dualband Radio, till I noticed some problems with the VHF Section on the Radio. I did not really bother to investigate the problem till I noticed that the rotary knob(encoder), which is used to tune the VFO, is not working anymore. Since I can

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