[Elecraft] [KPA1500] Input Power

[George Danner]

Probably an unauthorized modification after the introduction of the KPA1500 
will become available; similar to the one for the KPA500 by Paula Keezer 
NX1P.
Haven't tried it but looks to be well thought out.
73
George
AI4VZ

-----Original Message----- 
From: Dr. William J. Schmidt
Sent: Thursday, May 11, 2017 9:43 PM
To: Ingo Meyer, DK3RED
Cc: Elecraft
Subject: Re: [Elecraft] [KPA1500] Input Power

All of those popular devices have gain more than 15 dB... so there is a pad 
in the amp to keep the gain at 15 dB. One would think that a "tweak" will 
evolve to modify the pad (and possibly the firmware) to eliminate this 
bothersome limit.


Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ

Owner - Operator
Big Signal Ranch – K9ZC
Staunton, Illinois

Owner – Operator
Villa Grand Piton - J68HZ
Soufriere, St. Lucia W.I.
Rent it: www.VillaGrandPiton.com

email:  bill at wjschmidt.com


> On May 11, 2017, at 4:49 PM, Ingo Meyer, DK3RED <mails at qrp4fun.de> wrote:
>
> Hello Mike,
>
>> Hi,  Did you get answer for AC input power demand?    VA or power 
>> factor?Â
>
> No, only for the input power (see below), which I want to know.
>
> 1500 watts output = 61.8 dBm --> 15 dB gain --> 46.8 dBm = 47.5 ... 48 
> watts input
>
>>> The gain limit of 15 dB is set by the FCC. ...
>
> 73/72 de Ingo, DK3RED - Don't forget: the fun is the power!
> www.qrp4fun.de - dk3red at qrp4fun.de
>
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