Re: RF power chain mods and improvements..
Yes its a significant issue.? ?When tuning the 28 to 29 mhz range the spur falls in the upper aeromobile and HF marine band.?? Allison
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ajparent1/kb1gmx
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#51075
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Re: boosting the power on 28 MHz
#ubitx
Essentially the same The 2n2222a has a few minor spec notes but they are the same so long as its the TO18 metal part.? Do not expect miracles.? there are a lot of other changes that go with that.
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ajparent1/kb1gmx
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#51074
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Re: My Ubitx pics
Nicely done!!? WA9DOH mikehagans@...> wrote:
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Larry Smith
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#51073
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S meter
#ubitx
#ubitx-help
#arduino
Hello everyone i want to ask about the s meter i do it like the diagram Which is includes lm368 when i i programming by ubuub manager i i g the max value same the minimum value i try alot and nothing
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??? ?????? <hamad.kalid@...>
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#51072
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Re: BiTX 40 for sale
Hi all, ? The BitX is sold. ?Thanks. 73 Phil W1PJE
By
W1PJE
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#51071
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Re: RF power chain mods and improvements..
Its better to take care of this before it gets to the RF amplification section of the uBITx¡ Sent: Saturday, June 2, 2018 4:35 AM To: [email protected] Subject: Re: [BITX20] RF power chain mods and
By
K9HZ
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#51070
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Re: Transmitter Mods
Probably 20 was dying when you were listening. See what happens over time. There is nothing in the mod that can affect audio levels.
By
Howard Fidel
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#51069
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Re: BiTX 40 for sale
I will take it... send me PayPal info..
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Dennis Yancey <bigbluedry@...>
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#51068
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Re: Transmitter Mods
I installed the inductor and capacitors, thanks Howard.? My output changed across the bands.? A funny thing happened.?? The receive audio on 20 meters dropped way off.?? 40 meters is nice and
By
Lee
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#51067
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Re: My Ubitx pics
SWEET!!!!
By
VE7CWS WRSeiler <waltrseiler@...>
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#51066
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My Ubitx pics
Here's a couple pics of my just finished Ubitx project...I call it my Drake TR8 QRP built in a Drake MS7 speaker cabinet...Mike W4ZGI
By
Michael Hagans
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#51065
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Re: Instruction Manual needs revision
#ubitx
I have attached my first pass at the "MBITX TUNEUP" instruction, and welcome your comments.? I have aimed for ease of understanding, particularly for newcomers to our interesting hobby.? -- Jon
By
tituskz1g@...
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#51064
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Re: Variable Power Out
Put a pot in between the audio from the computer and the mic input to the radio. Then you can adjust for the desired level. Alternatively check to see if you can control the output level, either from
By
Clark Martin
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#51063
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Re: Nextion Display
I have a 3.2 ordered and waiting for it to arrive. I am using the 1.08CEC firmware from Dr. Ian and like it a lot. I am adding 8 switches to it. I know the manager has options for 6 but I am adding
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Allen Merrell
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#51062
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Re: LCD Interface Question: Parallel or I2C?
#bitx20
#bitx40help
#firmware
yes...it frees up 6 i/o lines kn4ud@...> wrote: -- Paul Mateer, AA9GG Elan Engineering Corp. www.elanengr.com NAQCC 3123, SKCC 4628
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AA9GG
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#51061
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Re: Han's fabulous article on the QCX
I have a 20 meter OCX and enjoyed building it. No problem to build at all and it has all the necessary equiptment built in to align it with. I liked it enough to order another in 40 meter band. kn4ud
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Allen Merrell
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#51060
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Re: LCD Interface Question: Parallel or I2C?
#bitx20
#bitx40help
#firmware
I2C frees up some pins. I2C only uses 2 pins plus power and ground. This was my reason to go to I2C. 73's kn4ud -- Allen ?Merrell
By
Allen Merrell
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#51059
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Re: Han's fabulous article on the QCX
Thanks for posting the link. Hans¡¯ writing is comfortable and pleasant to read. I THINK I¡¯m finally starting to understand how some common radio circuits work. Brilliant! :-) Old Engineer. Young
By
Craig Wadsworth
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#51058
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Re: ?BITX Disable TC (use for CW training)
Yes. The firmware is backwards compatible. - f
By
Ashhar Farhan
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#51057
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Re: uBITX physical comm port - newbie question
Thanks for the quick reply - I really appreciate it. I do some QRP building and experiment a little, but I've never gotten into the micro controller scene much at all other than reading up on it.? 50
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Tom Francis <ubitx@...>
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#51056
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