I have a couple of aerials, an 80m dipole and a random long wire about 150 feet long.
I use a matching unun with the long wire. The dipole works fine as a receiving aerial on any band and gives me the least local interference due to the feed point being very high and the ends clear of habitation.
I find all digital radios are inherently very noisy compared with old valve superhets.
I suppose most out there haven’t listened to a proper receiver with proper RF tuning and without a PLL.
There’s a challenge…
main@SDR-Radio.groups.io [mailto:main@SDR-Radio.groups.io] On Behalf Of jdow
You have a really small antenna, perhaps? If not I suspect the Andrus
is not setup as nicely as it could be. With a low loss antenna system below
even 30 MHz and especially under 10 MHz it is VERY difficult to make a radio
too insensitive to receive anything that is out there without reducing RF input
gain by 10 dB to even 30 dB due to purely natural noise sources.