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Recent content by hansejohn

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    The filter I made: When I do a good job in suppressing its far end stopband, its loss always...

    The filter I made: When I do a good job in suppressing its far end stopband, its loss always increases to around 6.5dB. I'm thinking about whether I want to ensure low loss or far end stopband suppression? My filter debugging issue
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    Parts Needed / Royce 1-641

    Didn't you see a 455kHz filter in your picture?
  3. H

    Parts Needed / Royce 1-641

    Didn't you see a 455kHz filter in your picture?
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    BinaryRock

    I have a question, is this 455kHz filter still being designed by someone? Is this product still in production use?
  5. H

    Home Retevis 16th Anniversary - 3 Ailunce HA2 Radios!

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