AM and FM antenna systems

Many thanks to each of you for the quick response.  I assume from the lack of comment following Yogiboy'S AM comment that significant AM improvement is most likely a lost cause (?).

Also... if they were OK with spending $300+ would you advise buying a nice dynalab fm tuner OR the magnum dynalab sleuth antenna?

Thanks again.

" ... would you advise buying a nice dynalab fm tuner OR the magnum dynalab sleuth antenna? "

There's no way to answer this question, because you haven't provided any information about what you're trying to do. Are you trying to receive strong, local signals, but have a problem with multipath? Are you trying to receive noisy, distant signals?

The Signal Sleuth is not an antenna, btw. It's a tuneable antenna amplifier.

If the goal is to pull in more stations clearer the ticket is to use an fm tuner known for high sensitivity (and noise rejection). Tandberg used to be my favorite but many better vintage tuners were quite sensitive and are worth a look if assured to be in good operating condition. Nowadays, I like some of the Sangean products in that this company specializes in radios and a tabletop model I own has one of the most sensitive tuners I’ve heard and I’ve heard quite a few over the years.

The Dynalab stuff always seems nice but very pricey. Might be worth it....don’t know.

Echo Audio in Portland Oregon had three McIntosh MR78's in their front window last week. A good tuner for those needing high selectivity. I did a search recently for a roof mount yagi antenna, and was dismayed to find the old names (Channel Master 4488, etc.) gone. Where does one go these days to find a real good, multi-element, high-rejection FM antenna? 

My antenna has decent source signal amplifier thst pulls stations a couple hundred miles away,