Re: Raduino, powered by a Teensy 3.2.
#ubitx
#bitx40
We will end up converting this uBITX in to an SDR by the end of the day...
By
Nick VK4PP
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#43718
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Re: ubitx order
Ordered Mine Jan 13th via DHL and no notification yet.... seems like it may be soon!
By
Vince KD7AI
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#43717
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Re: #uBiTx CW RF power out
#ubitx
Set bias for 100ma of drain current on each IRF510 using RV2 and RV3 and then leave it be.
That 100ma shouldn't change much even if you were to go from a 12v PA-PWR to 24v.?
Adjust power level using
By
Jerry Gaffke
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#43716
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Re: Raduino, powered by a Teensy 3.2.
#ubitx
#bitx40
A 15kHz DSP IF will be fantastic .... no need for a separate CW crystal
filter, get a notch filter, noise reduction, variable brick wall bandpass,
etc.
M
By
Mike Woods
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#43715
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Re: #uBiTx CW RF power out
#ubitx
Bob:
Search this list for your answers.
See especially the thread "rv2_messed_up_setting_and_txing_like_mad!!!"
This goes into some detail about adjusting the RV pots.
john
AD5YE
By
John Backo
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#43714
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#uBiTx CW RF power out
#ubitx
I received my uBiTx about two weeks ago. I experienced some of the same
issues that others have reported:
1. I did find that the wiring diagram for the three 3.5mm jacks to be
confusing and the
By
Bob
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#43713
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Re: ubitx order
Roflmao! I wasn't going to comment but this guy is right on with this.
By
Christopher Miller
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#43712
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Re: Fldigi with UBITX
On Mon, Mar 5, 2018 at 03:04 pm, Tim Gorman wrote:
>
> Walter,
>
> What kind of thermo switch are you using?
>
> tim ab0wr
>
> On Sun, 04 Mar 2018 17:56:59 -0800
> "Walter" <W9KJO@...>
By
Walter
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#43711
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Re: ubitx order
Mine was ordered Jan 5th and just got shipment notification today. DHL says it should be here by this Thursday evening. (pending customs, weather, aurora, meteors, etc)
I concur with the 60 day mark
By
N1AFF - formerly KB1JPW
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#43710
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Re: CAT Support uBITX Firmware CEC Version 1.04 Release
#ubitx
Bob
Tanks for feed back.
I often test with nano only.
I sometimes did not make A6 High, so I did not know if CW-Key was being
pressed and I had a hard time trying to catch a bug. so I have now
By
Ian Lee
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#43709
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Re: Raduino, powered by a Teensy 3.2.
#ubitx
#bitx40
Postage from the US to down here in Oz is now unbelievably expensive compared with what the rates were a few years ago. And we also face the current exchange rate plus the money changers margin. By
By
Kevin Luxford
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#43708
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Re: Raduino, powered by a Teensy 3.2.
#ubitx
#bitx40
I look at it that the Arduino is an "easy" way to get the job done. It
doesn't mean it's the best, but things like a Teensy and a Blue Pill can
take a bit more time to get working the right way.
By
Fred Buecker <tfbiii2002@...>
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#43707
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Re: ubitx order
I'm going to order mine next month, has it shipped yet?
By
Fred Buecker <tfbiii2002@...>
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#43706
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Re: Modifying Bitx40 BPF band pass filter
PH0KKO
You can change the BPF filter center frequency by just changing the
capacitors,
but there is a potential problem. As the capacitance gets higher the
filter bandwidth
gets narrower. You can
By
Arv Evans
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#43705
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Modifying Bitx40 BPF band pass filter
Hi all,
I am building the Bitx40 dead bug style. Basically changing the Bitx20 and using a different BPF, VFO frequency and low pass filter. For the BPF I used the design shown on the hfsigs website.
By
Fokko PH0KKO
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#43704
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Re: Raduino Replacement, COMING SOON!
*hey look what just turned up! X60, and lpf and hpf and audio breakouts..*
By
Nick VK4PP
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#43703
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Re: ubitx order
Exactly 60 days! Mine shipped today! Another 3 to 4 weeks and I can get started on it! LOL!
?
73
KW4SZ
Corbett
Sent: Monday, March 05, 2018 3:10 PM
To: [email protected]
Subject: Re: [BITX20]
By
James Tate
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#43702
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Re: ubitx order
I received my kit about 15 minutes ago SN 654/2? Ordered Dec 19 shipped India Post Feb 12 to Toronto area Canada.
Once I clear my ERC rotator controller I may see what I can do with it.? Have the
By
Rod Clifton <rclifton@...>
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#43701
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Re: I was given a unit and u1 ic has a hole blown in it. What is the ic numer, all I can see I t 22m. Its in the audio circut
I am looking at a few replacements myself as I have the WX version that seems to be prone to blow.
Some of the other options
NJM2073D-ND
NTE7155
or buy another TDA2822
I have not tested any of
By
N8DAH
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#43700
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Re: I was given a unit and u1 ic has a hole blown in it. What is the ic numer, all I can see I t 22m. Its in the audio circut
Here ya go: http://www.hfsignals.com/index.php/ubitx-circuit-description/
Near the bottom. Right click on it and save it locally so you can enlarge it. It enlarges quite clearly.
Vince.
--
By
Vince Vielhaber <vev@...>
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#43699
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