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An MMIC between Q90 and RV1 is an easy way to add an extra stage. ?/g/BITX20/message/51211 Of course, you still have to adjust the other stages to distribute the gain properly.

Thanks Darren - works great. 73, Bill

Allison, what about adding an additional stage after the last mixer in the transmitter lineup? Better choice of transistors (replace Q90 and maybe the other 3904’s)... add (insert) a tiny daughter

Tom, As a follow up I've built my own amp and also worked with Hands on his and? as a result I have two different amps that can do 3-30mhz with nearly flat power and very linear.? That's at 12V (not

Tom, Back when I was resorting to the full bag of tricks the goal was not more power! The goal was even power from 80 through 10 and improved distortion levels. Alas, the were other issues found that

Jack, Very interesting. Thanks. Tom, wb6b

So a question. I know some of the power boost suggestions like shorting out parts the were put there to provide stability in the amplifiers or overdriving the audio, do indeed increase power, but at

If you want SWR only I just got a nice cross needle MFJ-822.?? It covers 1.8-200 MHz, 30 or 300 Watts.? On the 30 watt range half scale is about 7 watts. -- Lee - N9LO?"I Void Warranties"

Tom: You can get a marginal speed improvement by moving the data definitions out of the loops. For example: #define ELEMENTS(x)? (sizeof(x) / sizeof(x[0]))? // Gets rid of "magic numbers" in the

> Thank you Nikkos. > Michel F1GTX >

I must have missed something, where's this guide? Roy WA0YMH

Great! -- One

Good idea, getting harder to get good second had test equipment

Jeff, I have the same impression and experience like You! I prodduced a so called level diagramme, see may attachment. Interestingly thsi result was verified on my UBITX: at -107 dBm (=1?V) at the

Hi,Warren, I will always appreciate the data that you generated! Nicer radios, are certainly nicer radios! Some people like Honda FIT , some prefer a high end BMW! For the purposes of coaxing local

Ηi Michel, I already know that the software has some issues, but it's the best option i've found thanks to Rich Neese.You can also find GUI here

I have a current version of the BITX which I just finished assembling in the case.? It works after some debugging....replacing the code in the Arduino due to a cw fault per another discussion.? It

I am finished. This is simply not worth the effort. The difference between this radio and my FT-817 is about $350. The difference between the uBitx and my HobbyPC RS-HFIQ is $100. Both are worth the

Thank you Nikos. I tried 270tft the screen is reversed. 90tft is fine except the S / Meter deviation is reversed. friendships F1GTX Michel