Re: [IRCA] $200 receivers with little blue LED lights

[Scott Fybush <scott@xxxxxxxxxx>]

The FM DXers have mostly learned to live with the added noise by now 
(what other choice is there, really?)

There was certainly plenty of DX reported this past spring and summer. 
The adjacent-channel hiss can mostly be overcome when fairly strong trop 
or E-skip comes in. It's the guys pursuing the really weak stuff - 
meteor scatter, for instance - who've been hit hard.

Beyond the DX world, the impact has been minimal. Some short-spaced 
signals in the educational band (87.9-91.9) have lost bits of fringe 
coverage, but there's no evidence, several years into widespread FM HD, 
of any stations showing verifiable ratings losses as a result of new 
adjacent-channel interference. That's not just in-market, either - I've 
looked for ratings falloff on stations like the LA FMs, which pull small 
numbers into North County San Diego, and it's just not there.

Even the areas where there are known short-spacing interference problems 
- central Jersey, where NYC and Philly signals collide, or the DC 
suburbs, where Baltimore and Washington collide - have yet to show any 
ratings issues attributable to adjacent-channel FM IBOC noise. There are 
mammoth amounts of revenue at stake in those situations, and if there 
were any verifiable problem, there'd have been lawsuits galore by now.

It's a far cry from the AM situation!

s





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