Rockbox mail archive
Subject: Re: FMR - rest in peace
From: Dave Thayer (rockbox_at_thayer-boyle.com)
On Tue, Sep 30, 2003 at 01:09:30PM -0500, LoveLearn wrote:
> AM-FM rather than just FM. Radio section IC chips are similarly sized
> and cost differences for including AM with FM are justified. All current
> top sized listener audience radio shows in the US are "Talk radio"
> programs. Most talk radio programing is only broadcast on AM. Ignoring
> this market simply because FM is sonically better is a terrible mistake.
> When selecting an AM-FM chip, find a top performer like the Sony
> CXA1129N AM/FM chip rather than another weak performer.
I agree AM would be a Good Thing; I did a fair amoount of research
before choosing my Sangean DT200V on the basis of its AM performance.
But there are a couple of technical obstacles to putting an AM section
in a AJB type device. First is the size of the ferrite antenna rod.
When you get down to an iPod sized unit this could be a considerable
impact. More difficult to deal with is the RFI generated by all of the
digital circuitry in the AJB. I get interference if my AJB is within
about a meter of my Sangean. IMO, it would be really tough to
adequately sheild an internal AM section in one of these devices.
Dave Thayer | WARNING: Persons denying the existence of
Denver, Colorado USA | robots may be robots themselves.
Page was last modified "Jan 10 2012" The Rockbox Crew