Re: uBITX - Sensible mods
#ubitx
Hi All,
Thanks for the info/hints 'n' tips - kind of what I was looking for - keep 'em coming...
I'm sure there's a ton of good info on groups.io, but digging out the most useful from the 'noise' is
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Nigel G4ZAL <nigel@...>
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#37629
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Re: uBITX - Sensible mods
#ubitx
Agreed.? That is how Bipolar Microwave Power Amplifiers work as well.
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WA9PWR
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#37628
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Re: Raduino logic levels
This gave me a good chuckle...? :-)
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Smitty, N6MTS
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#37627
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Re: Connection test between uBITX and digital communication program via cat communication
#ubitx
Very nice. I will definitely do this with my raspberry pi using WSJTX. So you¡¯re controlling it with the USB port on the Ubitx?
Let us know when you have some working instructions that we can
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Joe Puma <kd2nfc@...>
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#37626
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Re: UbitX AM
You are right - the IF would need to shift to the broadcast band ... but
that shouldn¡¯t be a problem for the raduino. The si4374 or 75 are capable
of receiving shortwave, but there are no prebuilt
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Mike Woods
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#37625
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Re: UbitX AM
Interesting thought.
The Si4730 is darn near a complete radio already.
Though having signals go through the uBitx's 45mhz first IF would avoid trouble from strong adjacent QRM.
And would be fun to
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Jerry Gaffke
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#37624
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Re: My ?BITX in its new home
Where is the best deal for a bezel?
My cut came out great for the Bitx40, Don¡¯t think I¡¯ll be that lucky twice
in a row.
Mark
K3MRK
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Mark W <K3MRK1@...>
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#37623
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Re: UbitX AM
I wonder if the si4730 chip could be used at say 12MHz for AM reception?
This frequency is inside the si4730 working parameters. The modules are
very cheap to buy ex China and can be configured over
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Mike Woods
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#37622
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Re: UbitX AM
This might be the NE602 synchronous AM detector Farhan mentioned:
? ??http://www.arrl.org/files/file/Technology/tis/info/pdf/9307028.pdf
Looks rather complex, perhaps there are better chips for
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Jerry Gaffke
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#37621
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Re: Connection test between uBITX and digital communication program via cat communication
#ubitx
Cool looking forward to it! Maybe?Ashhar can give you access and you can create a branch and a pull request. That's how most projects merge changes.
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peatmoss - ki6ssi
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#37620
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Re: UbitX AM
Receiver or transceiver ?
Raj
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Raj vu2zap
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#37619
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Re: uBITX - Sensible mods
#ubitx
You can find them easily, see your ebay..
They are plug in replacements. Only compatible display is 16x2 or 1602.
I like the black letters on white background! A little rare in India..
Raj
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Raj vu2zap
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#37618
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Re: Connection test between uBITX and digital communication program via cat communication
#ubitx
of course. I also used the protocol of FT-817 for compatibility with other
programs, but I think there is much better way than that.
I will continue to add uBITX proprietary protocols in the
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Ian Lee
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#37617
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Re: Connection test between uBITX and digital communication program via cat communication
#ubitx
Thanks for reply Gordon.
After a little more testing, I will be posting how to upload and restore
the firmware soon.
2017-12-29 11:02 GMT+09:00 Gordon Gibby <ggibby@...>:
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Ian Lee
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#37616
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Re: Connection test between uBITX and digital communication program via cat communication
#ubitx
I think most will be interested. This also solves the immediate issue of
how to implement CAT, though, one could always do their own.
Marco - KG5PRT
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M Garza <mgarza896@...>
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#37615
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Re: Connection test between uBITX and digital communication program via cat communication
#ubitx
?Thank you Ian -- I will be very interested in this.
gordon
________________________________
Sent: Thursday, December 28, 2017 7:46 PM
To: [email protected]
Subject: [BITX20] Connection test between
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Gordon Gibby <ggibby@...>
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#37614
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Re: Raduino logic levels
I have 2 stand alone clock boards.
The simple one has the standard SI5153, which has the one I2C address.
The second one is called "Lotsa Clocks" and has the 20 pin SI part aboard.
Both have the
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Michael Hagen
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#37613
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Re: Raduino logic levels
Without a thorough analysis and a lot of spare time, best bet might be to give Lady Ada $4 for an i2c level converter.
? ??https://www.adafruit.com/product/757
Or read the NXP/Philips app notes
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Jerry Gaffke
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#37612
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FS: NUE-PSK used with Bitx40
I have for sale my Nue-PSK modem I used with my Bitx40.
Cable is setup with dc block cap for use with stock stereo jacks - tip mic - ring ptt - sleeve gnd
Modem has all the add ons as well as the CW
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N8DAH
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#37611
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Re: uBITX - Sensible mods
#ubitx
Here is a link to one that can be had on Amazon for about $6 + shipping. The really important piece is the controller HD44780.
You might be able to find one cheaper ¨Cjust make sure it has the same
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N6QWHAM@...
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#37610
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