From: [email protected] [mailto:[email protected]] On Behalf Of Jerry Gaffke via Groups.Io
Sent: Thursday, April 19, 2018 11:06 PM
To: [email protected]
Subject: Re: [BITX20] Transmitter Mods

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The first post in this thread describes Howard simple solution to even out the power across bands:
? ??/g/BITX20/message/46616

A little bit more of this same cure applied to Q92,93,96,97 as suggested in post 46649
should make it even better.

I'd much prefer this over most of the other schemes proposed thus far.
Note that Howard is achieving this with the stock IRF510's.

Jerry, KE7ER



On Thu, Apr 19, 2018 at 08:52 pm, AA9GG wrote:

I heard that some guys are switching in/out bias control pots for each band and adjusting them to maintain the same power on all bands.

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On Thu, Apr 19, 2018 at 10:41 PM, Satish Chandorkar <satish.vu2snk1@...> wrote:

How you propose to control the drive to be of 5 watts on all bands for your 70 W amplifier

As the uBITX is giving much more power out put on lower bands? than on the higher bands

Satish

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