-=jd=- wrote:

On Thu 04 Nov 2004 04:15:40p, starman
wrote in message :

Radio Man wrote:

I am in the market for a receiver with the
following criteria:
1. Analog readout only
2. AM/FM/Shortwave freqs
3. About the size of a sony 7600gr or smaller
4. Power requirements: Four AA or less

Any suggestions would be appreciated.

Thank You

There are many low cost (less than $50) digital readout
receivers now. It hardly pays to buy an analog model in
this price range which will almost certainly disappoint
you.



Does a digital display cost more in battery-life than analog
to a significant degree?

(Presuming any back-lighting is on-demand and not constant)

-=jd=-

It depends on whether the receiver uses a frequency synthesizer or PLL
(Phase Locked Loop) circuit for tuning, in addition to the digital
display, which most newer portables do. In that case you can expect the
power consumption to be significantly higher than a pure analog design.
However it's possible to design an analog receiver with a digital
display. The Grundig S-350 is a recent example of this type. It doesn't
have a PLL circuit for the tuning system but does have a digital
display, which is actually a frequency counter connected to the analog
tuning system. This design will generally use less power than a PLL type
but it's also less stable, which means it will drift off frequency. This
is not good for SSB reception.


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