RadioBanter - View Single Post - How is AM Reception in the Tivoli PAL ot the Boston Acoustics Receptor?

May 18th 04, 06:42 AM

In article ,
(G. Cook) wrote:

Jay Heyl wrote in message
...
In article ,
says...
Is the AM reception as weak in the Tivoli PAL as it is in the
Model One?

How about the Boston Acoustics Receptor (AM Reception)?

I was somewhat disappointed in the MW reception of the Recepter.
It's definitely not a DX machine as it stands. They did, however,
allow the internal ferrite antenna to be very easily replaced with
an external antenna. I'm sure the MW reception issue is primarily
due to the use of a small internal ferrite bar. Switching to an
external antenna that can be easily rotated would improve reception
considerably.

FM reception on the Recepter is among the best I've heard.

-- Jay

Hello, Disclaimer: I speak for myself only, and not for Tivoli Audio,
nor do I have any connection to Tivoli. I designed the Model One and
the PAL electronics. IMHO a PAL will provide good reception of all
but the weakest AM stations. The PAL has a 2" ferrite rod antenna
which limits the sensitivity to that of radios with a comparable
length antenna. On AM, size definitely matters. Both the PAL and the
Model One have pretty good sensitivity, and have better than average
selectivity and dynamic range. The hi-fi sound is the best part, as
most owners will confirm. Mediocre AM sensitivity on the early Model
Ones was substantially improved shortly after its' introduction,
unfortunately not before it got a poor reputation. If you're trying
to get the most distant AM stations a GE Superadio will do better
with its 8 inch long antenna. Many digital radios with an internal
antenna suffer from self-interference due to HF noise from the
digital circuits, and this will limit sensitivity. A Receptor with a
long wire or long ferrite rod external antenna should work well,
although at some point the input RF stages could either be detuned or
overloaded. A high Q tuned loop external antenna improves reception
in almost all situations.

I have owned a Tivoli Model One since they first came out and enjoy it
on a daily basis. I usually listen to FM on it at work. I don't pick up
any AM inside the concrete and steel building where I work. The AM
worked fine at home. Thanks for designing a great radio, which has great
sound in a very small footprint.

--
Telamon
Ventura, California