Farmerik, here is a couple of recommendations from Passport 2004 & 2008:

 

Sony AN-LP1 fold up  Antenna, that was supplied with some Sony Portables, it was $90.00 US Funds then, and is mainly for Sony Receivers - but it may be discontinued. Try Google and ebay.

 

Any of the Wellbrook Indoor - Outdoor antennas ie ALA 100, ALA 220S, or ALA 1530+  all are highly rated in Passport and WRTH (World Radio TV Handbook). I think they are made in the UK and it says to reach their full potential an outdoor mounting is preferred.

 

Some of these Antennas can get pricy.  Hope this helps.