|[AMRadio] Trouble brewing in the AM Window (or "Ghetto"|
bcarling at cfl.rr.com
Mon Dec 16 10:16:21 EST 2013
24KW PEP for parity? I think not.
Sent with my iPhone 6
> On Dec 15, 2013, at 11:23 PM, Gary Blau <gblau at w3am.com> wrote:
> If we want talk power parity with SSB then run 6KW carrier and get on with life.
> Donald Chester wrote:
>>>> From: billy <kd5zla at swbell.net>
>> So we look at AM 375 watts at 100 % modulation gives 1500 watts pep good yes and no AM is 4Khz on each side of the main carrier 4 khz up and 4 khz down in this you are only getting a true 500 watts on the main carrier frequency and the same 1500 watts pep of power on SSB can only be 3 khz wide so the 1005 watts going to the carrier frequency. So in this if both AM and SSB are running full power on the same frequency you will never hear the AM. So I see it like this why try to fight a fight you will never win. But this is my 2 cents.
>> I wish AMers would quit talking up that p.e.p. nonsense. The power of an AM
>> transmitter should be expressed in terms of CARRIER power. P.e.p. is
>> SLOPBUCKET terminology. In spite of the bogus FCC ruling, I'd bet that fewer
>> than 10% of the hams on the air to-day could accurately determine their
>> actual p.e.p. any closer than plus or minus 20% if even that, using Hammy
>> Hambone "wattmeters" that are not watt-meters at all but RF voltmeters, with
>> a printed scale configured to register watts when working into a perfectly
>> matched, purely resistive, non-reactive 50-ohm load, a rare bird (no pun
>> intended) that exists in very few amateur radio antenna installations.
>> It irritates me to no end when I hear someone on AM describing their
>> station, and they go on to say they are running X number of watts of carrier
>> and "peaking up to" Y number of watts. Why not just say you are running X
>> number of watts and peaking 100% modulation (or whatever percentage the
>> transmitter is capable of)?
>> Don k4kyv
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