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Discriminator Outputs / Re: UBC125XLT / BC125AT
« on: 28 Nov 2017, 15:45:45 »
Hi,
I've done the modification. After connecting MIC input to the modified jack I can hear noise on the headphone connector, even if squelch is not opened.
Have you noticed such issue? How to remediate that? Insert an op-amp between the DISC pad and jack output to separate discriminator?
And also, increasing volume of the scanner, the amplitude of DISC signal is also increasing. Any ideas?
I've done the modification. After connecting MIC input to the modified jack I can hear noise on the headphone connector, even if squelch is not opened.
Have you noticed such issue? How to remediate that? Insert an op-amp between the DISC pad and jack output to separate discriminator?
And also, increasing volume of the scanner, the amplitude of DISC signal is also increasing. Any ideas?