102.5 to Spanish? Nahhh.....

Dan Strassberg dan.strassberg@att.net
Sun Dec 18 14:31:37 EST 2005

What am I missing? 102.5-10.7=91.8. Is 102.5 prevented from moving to the
Pru by WUMB in Quincy and various low-power 91.7s that ring Boston? If so,
does this limitation make any sense? I gather that the problem is not the
station on 102.5 but radiation from the local oscillators of all the radios
tuned to 102.5. I guess LOs of FM radios operate 10.7-MHz below the station
to which the radio is tuned. By preventing 102.5 from moving to the Pru, it
would not seem to me that you'd prevent many radios close to WUMB or the
various 91.7s from being tuned to 102.5. Also, are you (implicity) saying
that Channel 5 (76 to 82 MHz) is constrained to operate from 128 because of
image interference from an FM on the Pru? (Not that there is much likelihood
of Channel 5 moving off the Chanel 4 tower, but 92.9-10.7=82.2.) Or does
WBOS transmit from 128? (I know it used to, but I thought it had moved.)

Dan Strassberg, dan.strassberg@att.net
eFax 707-215-6367

----- Original Message -----
From: "Garrett Wollman" <wollman@csail.mit.edu>
To: <bradfordwood@comcast.net>
Cc: "boston Radio Interest" <boston-radio-interest@rolinin.BostonRadio.org>
Sent: Sunday, December 18, 2005 10:48 AM
Subject: Re: 102.5 to Spanish? Nahhh.....

> <<On Sun, 18 Dec 2005 13:01:08 +0000, bradfordwood@comcast.net said:
> > Does 102.5 offer better coverage into Boston or vice versa?
> Oh, very much so.  That's why 102.5 is a $100M signals and 99.5 is
> thought to be worth much less than that -- it's the difference between
> a Waltham station and a Lowell station.  (One fly in the ointment for
> Greater Media, however, is the 10.7-MHz IF taboo which prevents 102.5
> from moving to the Pru.  But 102.5 transmits from FM-128 in Needham,
> where Greater's Pru stations all have backup facilities, which is at
> least more convenient to the Dorchester studios than 99.5's
> transmitter on Wood Hill in Andover.)
> -GAWollman

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