It should probably be noted in this discussion that synchronous AM
transmitters have been in use in Europe for decades on the AM band. There
were and are various mixes of low power and low and high power AM's
operating on the same channel with the same programming. Back in the 1970's
there were a greater number of groupings of low power ( 250-1000 watt )
stations in the UK and Spain in particular utilizing this method, and in
many cases those signals would be audible under good TA conditions here in
ECNA.

Usually, these sounded very much like a single transmitter here. Whether
this was because we heard only one station ( the most powerful the highest
antenna or the most favorable tx location could be debated ) or whether the
synchronization was that good is impossible to know some 40 years on.

Based on this, plus the ( unmentioned in the article ) synchronous WBZ/WBZA
experiement with newer technology which remained into the 1960's, as well
as the KOB/KKOB setup in NM, plus a few others, there shouldn't be any
reason why this wouldn't be a viable option technically.

That said however, the low cost of erecting and maintaining an FM
translator is probably a momre cost-effective solution.



Russ Edmunds
15 mi NW Phila
Grid FN20id
<wb2...@gmail.com>

AM: Modified Sony ICF2010's (4) barefoot w/whip
FM: Yamaha T-80 & T-85, each w/ Conrad RDS Decoder;
Onkyo T-450RDS; Tecsun PL-310 ( 4);
modified Sony ICF2010's (3) w/APS9B @ 15';
modified Sony ICF2010 w/whip


On Fri, Mar 24, 2017 at 10:45 AM, Dennis Gibson <wb6...@gmail.com> wrote:

> http://www.radiomagonline.com/deep-dig/0005/synchronous-am-
> boosters-could-help-revive-senior-band/38704
>
> Sent from my iPad
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