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Re: Difference between 2N2222A and PN2222A #ubitx40help #ubitx-help

Mark - N7EKU
 

Hi Jon,

Looking at a few datasheets, I don't see any reason why you couldn't use them.? All the specifications are pretty much the same except for the thermal resistance of the package; and then the pn2222a was superior there even (I would have thought the opposite).

73,


Mark.
Re: Getting ready to build my ubitx v5, tomorrow.

 

Hey! Cool to hear it!

So, I just got mine working today after a week of it being deaf as a post. It turns out if you install the CEC firmware for the old v4 board, it activates the low pass filters at the wrong time or something and just completely kills all your input. At the same time, the old BFO frequency won't work for the new board and all your SSB output will get swallowed up by the crystal filter.

KD8CEC has a version of the Nextion-enabled firmware for the v5 board. Once I installed it and made sure my BFO frequency was right, I started hearing all those beautiful little warbles at 7.074.?

Zach AE0FG
Difference between 2N2222A and PN2222A #ubitx40help #ubitx-help

 

Hi,
2N2222A are 6x more expensive than PN2222A. Is there some special reason the 2N2222A is specified to replace 2N3904s?
Please advise soonest.
Jon S
Re: NEED HELP

 

I admit building into that case takes some thought in merging instructions.? check the ubitx.com website for useful info, more than I had. This URL is hosted by Sunil the case builder. Many little things to figure out, pretend this is more homebrew than kit. You have options but take time to figure Sunil's intent. Even getting the raduino cables correct may require study of pictures.

Curt
Re: NEED HELP

Kelly Mabry
 


Gives an overall demo of completed radio...I recommend Neo the nomad videos on YouTube.?

73,
Kelly K5AID?
Happy building!
Re: NEED HELP

Laddie
 

Thank you very much I have the PC boards populated but was stuck.

----- Original Message -----
From: "Kelly Mabry" <kmabry2007@...>
To: [email protected]
Sent: Thursday, March 14, 2019 6:00:19 PM
Subject: Re: [BITX20] NEED HELP

Hi! Let me say, its gonna be ok.? On YouTube is vast collection of videos that can assist in your build. I am also providing some pictures and schematics.
Re: NEED HELP

Kelly Mabry
 

Please check hfsignals.com website to ensure you have the correct version. We are all here to help.

73,?
Kelly K5AID?
Re: NEED HELP

Kelly Mabry
 

Hi! Let me say, its gonna be ok.? On YouTube is vast collection of videos that can assist in your build. I am also providing some pictures and schematics.?

Power Connection uBitx Universal Case.png
Front panel stereo socket board.jpg
Front panel stereo socket board 2.jpg
uBITX_wireup_v1.9.png

Re: NEED HELP

 

I don't know anything about that case but the ?BITX instructions are available from the same place you most likely bought it
--

NEED HELP

Laddie
 

HI, I have in hand ubitx and universal da maroon enclosure.
Nether the $129 radio/board kit nor the $43 enclosure came with instruction only a parts list.
I am flying blind PLEASE HELP! Assembly manual with photos or video PLEASE. Thanks Laddie

Universal-Case-uBITX.jpg-front.jpg

100/ppr Rotary Encoder Detents

 

Just received one of the neat 100/ppr black rotary encoders from an eBay vender. Looks great. It does have 100 dentents per rev. Any one had one apart ? Was thinking of disabling the mechanical detent.
Jim
WA3APC
Re: Getting ready to build my ubitx v5, tomorrow.

Kelly Mabry
 

Well, well... wouldn't you know it...the Nextion display got here today! I'll take that as a favorable sign! Yippie!
73,
Kelly K5AID?
Re: Welcome to [email protected]

Kelly Mabry
 

Welcome!
73,
Kelly K5AID?
Re: Welcome to [email protected]

 

Welcome aboard!

Very Respectfully,
Rick
N3ECZ
?BITX V5 Board compatible with JackAL

Jack Purdum
 

All:

Al and I have spent considerable time testing a couple of V5 ?BITX boards for use with our JackAl board. (See hamradiodesigns.com) No hardware modifications are required. We did have to make some minor changes in the software because of the new IF frequency. We expect to release a new software release for the V5 board in a few days. I will send out a notice when it is ready for download. We are also expanding the assembly manual with additional photos and narrative. That should be ready next week. The JackAl boards are being sold by QRPGuys.com.

Jack, W8TEE
Getting ready to build my ubitx v5, tomorrow.

Kelly Mabry
 

开云体育


Hi everyone! An exciting day tomorrow. The ubitx v5 board will arrive from India via DHL. The parts for the case (which arrived so quickly,? thank you Sunil! amateurradiokits.in) have been dry fitted and look fabulous. I have been researching build videos via YouTube. As it stands the Nextion? display is 10 days away from arrival, so I intend to build it, test it and wait for the? display to arrive.??

73,?
Kelly K5AID?


Sent from my Verizon, Samsung Galaxy smartphone
Re: Welcome to [email protected]

 

开云体育

New to the group waiting for my Bitx20 to arrive.? Just testing the group email

Rick KN6KB


Re: command script for Linux for programming Hex files

 

Thanks Laurence, I made a copy for my Linux-tid-bits file.

Terry - KB8AMZ
Brimfield Twp, OH USA EN91hd
Linux User# 412308, Ubuntu User# 34905,?PCARS#78, NAQCC#6668, QRP-ARCI#8855, SKCC#14195


On Wed, Mar 13, 2019 at 12:07 PM Laurence Oberman <oberman.l@...> wrote:
Hello

I think this may be useful, I wrote it to use it to update firmware
using Linux command line.
Save as program_ubitx.sh or whatever name you want.

--------------------- Snip -----------
#!/bin/bash
# Script to use avrdude on Linux to program HEX file into Ubitx
#Laurence Oberman
# KB1HKO
if [ -z "$1" ]
then
echo "USAGE: ./program_ubitx.sh <fw_name.hex>"
return
exit
fi

fw=$1
### Set your path to avrdude here
### Also ensure you are using the correct ttyUSBx port and that its
access is correct
avrdude="/home/loberman/.arduino15/packages/arduino/tools/avrdude/6.3.0-arduino14/bin/avrdude"
echo "Programming Ubitx with $fw"
$avrdude -C/home/loberman/.arduino15/packages/arduino/tools/avrdude/6.3.0-arduino14/etc/avrdude.conf
-v -patmega328p -carduino -P/dev/ttyUSB0 -b57600 -D -Uflash:w:$fw:i

?---------------Snip --------------
Re: uBITX V3 audio pop fix

 

This was in parallel with q74, which was not working (cold solder joint some where) now with original parts, pops are diminished greatly.
v5 in GE Phoenix SX case #ft8 #ubitx #antennas #firmware

 

Very happy with my recently finished build of the (unmodified) uBitx v5:

https://photos.app.goo.gl/P3goJ3msPL6UwWUx8
https://photos.app.goo.gl/PAcSbpFpCCcKojcE7

Antenna: QRPGuys 'no tune end fed half wave' antenna 'inverted V' configuration (20m/40m, ~60ft of 22 AWG wire)
Computer:? Raspberry PI 3
Soundcard: Sabrent USB adapter (uBitx MIC/SPK are directly connected to the soundcard, no
additional isolation transformer or additional capacitor seem to be required)
Case: recycled GE Phoenix SX Vhf radio (required a lot of changes to fit in the uBitx)
Firmware: CEC Firmware v1.120 for uBitx v5

How does it work in the middle of Silicon Valley / California?

My initial results:

- SSB voice is not possible because of high noise
- KGO AM transmitter is only 8 miles away from my QTH and is causing
Broadcast Interference (BCI) across a wide frequency spectrum in the
20m/40m band
-> a magnetic loop antenna might be able to address the BCI issue
or the addition of a 'BCI filter' as discussed in this forum

Other suggestions on how to address this issue are welcome.

Wsjtx:
- FT8 is working and I was able to complete a few QSOs with stations
1300 miles away (CM87 <-> EM16)
- very few WSPR messages have been received (signal are too
weak)
- send WSPR messages (with either the CEC firmware or Wsjtx)
been received by other stations
- FT8 send/recv maps are attached

Fldigi:
- was able to receive AARL's W1AW CW HF 'propagation bulletin'

-jens (KM6ZJV)

Screenshot from 2019-03-12 22-07-26.png
Screenshot from 2019-03-12 21-59-47.png

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