Re: Transmitter Mods
Here¡¯s 20 meter FT8 tonight in Plano TX. Don¡¯t think the band is dead. Mike K5ESS Sent: Saturday, June 2, 2018 8:44 PM To: [email protected] Subject: Re: [BITX20] Transmitter Mods I guessed that
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K5ESS
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#51084
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Re: Nextion Display
I see a lot of post about the Nextion display. What advantages does the if have over the mcufriend displays? Jack, W8TEE
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Jack Purdum <jjpurdum@...>
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#51083
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Re: No Idea
I only wired this 10 wrong ways until I figured it out. Sunil said he was working on a book of instructions to go with his cases. Al KB4RA
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allen west
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#51082
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Re: Instruction Manual needs revision
#ubitx
Jon, Your manual is well written and easy to follow. If setting the calibration and the bfo interact, you may need to add a note in the manual that repeating the setup again may be needed because of
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Tim Gorman
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#51081
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Re: No Idea
I worked out the wiring for the usb. Had a mini usb that I cut about 12 inches and wired to the usb back socket. I did that so I could use FT8 and other digital modes. I have a picture Buddy that I
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allen west
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#51080
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Re: Transmitter Mods
I guessed that installing the mod would not affect only 1 band but I thought maybe I bumped something else.? As you suggested I'll wait a few days to see if the band wakes up. -- Lee - N9LO?"I Void
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Lee
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#51079
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No Idea
First let me thank all who responded to last post, your ideas were a great help putting my uBITX together. I now am at the point where I have no idea how to proceed. I am using a case from Sunils and
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hotrod541@...
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#51078
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Re: Variable Power Out
Have you thought about lowering the audio signal you have feeding the ubitx? I know I can vary the output power a lot with my two-tone generator by just cranking the amplitude pot on the generator up
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Tim Gorman
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#51077
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Re: Power supply question
A couple of 5amp or 10amp Silicon diodes (5 watt rating) will give you a voltage drop of about 1.2v or 12.6v feeding the board. I had to crank up my power supply to 15.1v to get a consistent 12v out
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Tim Gorman
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#51076
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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
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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
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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.
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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
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Lee
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#51067
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Re: My Ubitx pics
SWEET!!!!
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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
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Michael Hagans
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#51065
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