[BC] Can traditional AM and IBOC co-exist?

[cldube]

Hi Phil-

Interesting discussion. Why is it that x-banders also tend to work with 
shorter
towers? One would think that given the wavelength, they'd want to utilize
the benefit of a shorter structure inherently. Call me naive- I'm very 
curious!

Thanks

Chuck Dube
Amherst

----- Original Message ----- 
From: "Phil Alexander" <dynotherm at earthlink.net>
To: "Broadcast Radio Mailing List" <broadcast at radiolists.net>
Sent: Monday, July 11, 2005 10:50 AM
Subject: Re: [BC] Can traditional AM and IBOC co-exist?
>
> The daytime skywave is a function of D-layer depletion as a result of
> sunspot activity. However, x-banders also tend to work with shorter
> towers rather than the 180 to 210 degree towers typical of Class A
> stations. This increases vertical radiation, hence short skip skywave
> in the 200-300 mile region appears more common in the X-band because
> nearly all stations are non-DA with quarter wave towers.


> Phil Alexander, CSRE, AMD
> Broadcast Engineering Services and Technology
> (a Div. of Advanced Parts Corporation)
> Ph. (317) 335-2065   FAX (317) 335-9037
>
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