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RF building blocks
Posted: Wed Apr 02, 2025 1:23 pm
by Andrew (grayhat)
Preamplifiers (LNAs), low/high/bandpass/notch filters, Bias-T units and other RF "building blocks"
https://gpio.com/
HTH
Re: RF building blocks
Posted: Wed Apr 23, 2025 8:28 pm
by Andrew (grayhat)
an example
https://gpio.com/collections/low-noise- ... -30db-gain
the LNA above should fit pretty well the SULA loop
Re: RF building blocks
Posted: Sun Apr 27, 2025 8:43 am
by 13dka
Mmm 30dB, 2.2dB noise, sounds very tempting. I should try that when I get to make the small version of the SULA!
Re: RF building blocks
Posted: Thu May 01, 2025 2:11 pm
by Andrew (grayhat)
then one may add some filters
https://gpio.com/collections/notch-filters
between the antenna and the LNA in EU or at Least in Italy one may want this
https://gpio.com/collections/notch-filt ... ction-85db
to keep commercial FM from.saturating the LNA and deafening it or the receiver frontend