[1000mp] Re: amps

John E Bastin, K8AJS [email protected]
Sun, 14 Jul 2002 13:55:19 -0400


At 05:53 -0700 07/13/2002, lhlousek wrote:
>
>Very interesting and informative amp info again.  Thanks!
>
>I've pretty much ruled out the AL-1200 and AL-82 on the basis that 
>they can take over 100W of drive to reach 1500W
>depending on band.

This could be an advantage. At 100W (assuming you have a 100W-output 
transmitter) your rig is operating at optimum efficiency and signal 
quality.

>
>That leaves the AL-800H and AL-1500.  Also in the running is the 
>Alpha 99.  All get by with between 50 and 60W of drive.

Which could give you a dirtier signal. Read some of the archives of 
this list regarding signal quality at lower power levels. You'll find 
that the signal quality of the 1000MP can be much worse at lower 
power levels.

If an amp takes over 100w of drive to reach 1.5KW, and perhaps only 
reaches 1300w at 100w of drive, is that such a bad thing? The 
difference in output power from the amp is very small in terms of dB 
at the receiving station.

Hope this helps.

73,
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