In article 49eb67a9.8093437@chupacabra,
Bob Dobbs wrote:

Telamon wrote:

I just tried KOGO 600, KFI 640, KNX 1070 and turning on the sync
detector didn't do anything to improve the audio. AM sounded the best.

Turning on side band selectable sync causes horrendous low frequency
noise.

Have you got an E1 or something that will do DSB sync?
As berated as the E1 has been, that's a seldom mentioned plus.
I think the Grundig G3 does it too.

The Drake R8B, AR7030+, and RX340 all have DSB sync.

The Drake R8B and the RX340 have in addition side band selectable sync.

The Sony 7600G only has side band selectable sync.

Same story on all radios. Side band selectable sync generates a lot of
this hard to describe low frequency rushing noise.

Any attempt to shift the passband to get better high frequency response
just increase the high frequency hissing noise.

It's not great but so far the best thing is just AM, no sync, and
passband centered.

Now I'm going to go check the car radio. I'll drive around a bit and see
how it sounds.

By the Australia is now best on 17,715. 17,795 is not bad and NZ is
still good on 15,720.

--
Telamon
Ventura, California