Now the comment was relating to SDR devices for the RX side, depending on what you have, some of these have very poor RF shielding so that in itself is a real problem Tom Schuessler, N5HYP EM12ms
Just as another data point - I use an $20 RTL-SDR.com V3 Dongle for the downlinks on almost all the FM and SSB satellites (yep, the plan was always to upgrade but it's been working so well that I haven't found a huge need to spend money on a real SDR or traditional receiver).
I have MFJ 916 diplexers at the mast acting as band pass filters. This has been working for me on all satellites except for SO-50 and FO-29. I can get receiver blowout on the 70cm downlink birds (LilacSat-2 and RS-44, for example) if I am not careful with my usage of my ARR pre-amps (located at the antennas) or the SDR gain setting, but ultimately I've had good luck on those. SO-50 and FO-29 don't seem to be workable no matter what combination of pre-amp and SDR gain setting I use. I haven't had an opportunity to try out HO-107 yet, so can't comment on my "el cheapo" setup on that bird. For SO-50 I just use my D710G, and I haven't had much opportunity to use FO-29 lately anyway.
--Roy K3RLD