Re: [IRCA] How local IS WBZ?

["Chuck Hutton" <charlesh3@xxxxxxx>]

Russ:

IBOC currently uses 1/8 (roughly) the power of the analog part. The IBOC
coverage depends on who you believe, but let's just say a radius of 1/2 the
analog coverage. That's a bit below what iBiquity says in their test
reports, but let's take a worst case for a second.

To get the same coverage, we'd need 4 times the current IBOC power. That
means IBOC coverage would be on par with analog at 1/2 the analog power.

People will argue it will take 1/5 or 1/4 or 1/3 or 2/3, but - given equal
power output - IBOC will be usable at a lower signal to noise level than
analog.

Now you know I'm not in favor of IBOC and have done a little thing or two to
fightthe fight, but I do feel obliged to attack it only as much as
necessary. 


Chuck

-----Original Message-----
From: irca-bounces@xxxxxxxxxxxxxxxx [mailto:irca-bounces@xxxxxxxxxxxxxxxx]
On Behalf Of Russ Edmunds
Sent: Tuesday, May 16, 2006 9:14 AM
To: Mailing list for the International Radio Club of America
Subject: Re: [IRCA] How local IS WBZ?



--- Dan Strassberg <dan.strassberg@xxxxxxx> wrote:

If analog AM is ever put to death and IBOC is allowed
> to use
> what is now the AM-channel's analog bandwidth to transmit digitally 
> encoded program material, WBZ's signal may again meet the 
> signal-strength requirements for serving Worcester and Providence at 
> night.


*** Based on all current reports on distant decode of IBOC AM signals, I
wonder how many megawatts that would take ???


Russ Edmunds
Blue Bell, PA  ( 360' ASL )
[15 mi NNW of Philadelphia]
40:08:45N; 75:16:04W, Grid FN20ID
<wb2bjh@xxxxxxxxx>
FM: Yamaha T-80 & APS9B @15'
AM: Hammarlund HQ-150 & 4' FET air core loop

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