In the UK digital stations through a television seem to be better than those heavily compressed ones through DAB.
Whilst DAB is no doubt a great system the neverending pressure to squeeze in more stations and thereby reducing bandwidth even further works against sound quality.
FM broadcast seems to now have a limited shelf life. Besides, for me, it has always seemed impossible to get good reception on all stations.
Radio 2 (88.3FM) is especially tricky where I live.
Classic FM (99 - 101FM) is not so bad.
A rotator mast might be the way to go for those who can accommodate one. I do t think any wire will help much unless you only listen to 1 station.
"The BBC Research & Development department states that at least 192 kbit/s is necessary for a high fidelity stereo broadcast :
A value of 256 kbit/s has been judged to provide a high quality stereo broadcast signal. However, a small reduction, to 224 kbit/s is often adequate, and in some cases it may be possible to accept a further reduction to 192 kbit/s, especially if redundancy in the stereo signal is exploited by a process of ’joint stereo’ encoding (i.e. some sounds appearing at the centre of the stereo image need not be sent twice). At 192 kbit/s, it is relatively easy to hear imperfections in critical audio material.
— BBC R&D White Paper WHP 061 June 2003[18]
When the BBC in July 2006 reduced the bit-rate of transmission of its classical music station Radio 3 from 192 kbit/s to 160 kbit/s, the resulting degradation of audio quality prompted a number of complaints to the Corporation.[19]
The BBC later announced that following this testing of new equipment, it would resume the previous practice of transmitting Radio 3 at 192 kbit/s whenever there were no other demands on bandwidth. (For comparison, BBC Radio 3 and all other BBC radio stations are now streamed using AAC at 320 kbit/s, described as ’HD’, on BBC Radio iPlayer after a period when it was available at two different bit rates.)"
https://en.m.wikipedia.org/wiki/Digital_Audio_Broadcasting#:~:text=The%20typical%20bitrate%20for%20D....