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Predator 400 amplifier

DR456

Member
Jan 23, 2017
44
15
18
Baton Rouge Louisiana
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Does anyone have a schematic for this amp? It' a 4 mrf455 unit. Any information is welcome. Recommend dead key etc:
 

predator 400: it's a model number, not the output power.
https://cdn.macom.com/datasheets/MRF455.pdf

minimum gain is 13 dB. or 20X the input, 3w into
1XMRF455 = 60 out, 12w into 4XMRF455 = 240 out.
those input & output levels are pep with full modulation.
in am mode carrier should be set for 25% of full output
with the amplifier in the high power setting.
(no input padding)

if i am able to locate the schematic i'll post up either a
file or a link.
 
Last edited:

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