Date   
Re: uBITX CW - digital input?

Curt
 

Rob

Adding to Jerry's deep answer, the ubitx uses its unusual keying approach out of necessity.  the raduino needs to be involved to change the RF path, and a voltage is read from that one pin to interpret as manual cw or two different voltages for electronic keying. Creative but strange. I have learned to live with its TR delay. Its not something we can bypass without large scale redesign.

Curt

Re: Need Help Troubleshooting Raduino on BITX40

Allard PE1NWL
 

Hi Jimmy,

v1.01 is the original stock firmware and it doesn't support the function
button and other extra features.
For this you would need to upgrade (the latest version is v1.28.1).

Detailed installation instructions are available at
https://github.com/amunters/bitx40/blob/master/installation_instructions/0-software-installation.md

73 Allard PE1NWL

Re: Slow t/r receive recovery #ubitxcw

Ashhar Farhan
 

this seems to be an agc issue. probably the timing cap needs to be reduced.
- f

On Fri, Oct 25, 2019 at 6:56 AM Mark Johnsen <mark.nb1u@...> wrote:
Hello all...
I've recently acquired a v3 uBITX with a K1BQT agc board and running TSW v2.02 software.  How can I decrease the receiver recovery time after I stop sending cw?
Presently it is approximately 3 seconds until I hear signals.
Tnx,
Mark NB1U

Re: no rf output #bitx40help

KG5YUO
 

I purchased a case from amature radio kits .in The receiver works.


 Thanks Bruce

 

Re: uBITX CW - digital input?

Jerry Gaffke
 

The Nano pin used for the keyer input is an analog only input,
there is no digital IO cell in the processor silicon at that pin and thus no pullup resistor available.


The schematics are a bit confusing as connector names are not given and pin numbering is not consistent.
However if you count the pins and check the positions of the ground power pins, you can generally figure it out.

The uBitx wireup diagram is at the top of this page:  http://www.hfsignals.com/index.php/ubitx-wire-up/
Your keyer plugs into connector J1 shown in the lower left, goes into pin 2 of the Raduino 8 pin connector,
and pin 3 is +5v, pin 4 is ground.

The Raduino schematic here:  http://www.hfsignals.com/wp-content/uploads/2017/12/raduino.pdf
shows that P1 pin 2 goes into the A6 pin of the Nano processor.

The Arduino Nano-CH340 clone schematic:  http://actrl.cz/blog/wp-content/uploads/nano_ch340_schematics-rev1.pdf
shows that A6 goes into ADC6 on pin 20 of the Atmega-328P-32TQFP processor chip.
Note that ADC0 through ADC5 of the chip are also named PC0 through PC5, indicating that those
analog inputs can also be digital IO pins.  But ADC6 and ADC7 do not have a PC6, PC7 designation,
since they are analog only.  And that pullups are only implemented on pins with digital IO.

The datasheet for the Atmega-328P verifies that pins ADC6 and ADC7 are analog inputs only.
http://ww1.microchip.com/downloads/en/DeviceDoc/Atmel-7810-Automotive-Microcontrollers-ATmega328P_Datasheet.pdf

Jerry, KE7ER


On Thu, Oct 24, 2019 at 05:31 PM, Rob French (KC4UPR) wrote:
Is there any reason I can't switch the existing uBITX Raduino CW input pin to be digital, INPUT_PULLUP? Obviously it could only be used for straight key in that case, but would it work? I would assume the external pull-up would no longer be required?

Slow t/r receive recovery #ubitxcw

Mark Johnsen
 

Hello all...
I've recently acquired a v3 uBITX with a K1BQT agc board and running TSW v2.02 software.  How can I decrease the receiver recovery time after I stop sending cw?
Presently it is approximately 3 seconds until I hear signals.
Tnx,
Mark NB1U

Re: Need Help Troubleshooting Raduino on BITX40

JD Hill
 

The version that shows up when I power on is version 1.01.
I have tried to load newer version but apparently I am doing something wrong.

uBITX CW - digital input?

Rob French (KC4UPR)
 

Is there any reason I can't switch the existing uBITX Raduino CW input pin to be digital, INPUT_PULLUP? Obviously it could only be used for straight key in that case, but would it work? I would assume the external pull-up would no longer be required?

Re: Need Help Troubleshooting Raduino on BITX40

Allard PE1NWL
 

Hi Jimmy,

what's the firmware version (as shown on the LCD at power on)?

73 Allard PE1NWL

Need Help Troubleshooting Raduino on BITX40

JD Hill
 

Good day all. I have been working on a BITX40 that I purchased earlier this year, so I am certain it is the newest version.  The rig turns on and the display and frequency tuning seem to be OK, however the function switch does not function so that I can do any of the functions to calibrate, etc. The switch is new and even shorting the orange wire going to he switch to ground does nothing. 

Have I possibly got a programming issue or possibly a bad Raduino? This is my first time working with an Arduino of any kind, so I am learning as I go. I really want to get this rig up and running. I plan to use it mostly for CW but I may dabble somewhat with the digital modes.

I will really appreciate any assistance I can get.
Thanks in advance.
Jimmy,  W9JDH

uBITX V5 not working PTT #ubitx-help

Varga Tamás
 

Hello all!

I would also have a quick question. I built an ubitx V5. My problem with it next is when I want to switch to trasmititng with the small micro switch nothing happens. If, on the other hand, I press PTT on a USB cable with Pocket RXTX software over USB, it switches to transmiting immediately.

My question is , is there any other place where the PTT switch is available besides the pin 5 of the contorls connector (ORANGE wire) and the GND (BLUE wire).

I would like to ask if I put a switch between the spindle pin 16 (T / R) and GND, would it work as a PTT switch?

 

That is, if you look at the PTT switch, the orange wire of the VFO panel and the 8 pin audio connector (blue wire) of GND. However, 
if I short this then there is no switch to transmit. Measurements made so far: -GND, ie blue cable to orange cable in RX mode is 4.75V. when I press the switch, the high mark on pin 16 of the mainbord does not appear. Amin is also 0 V by default. - But if I use software PTT on my phone via the arduino CAT cable, it switches to 5V and goes to TX mode. I also include arduino switching. here is in PDF http://www.hfsignals.com/index.php/ubitx-wire-up/ My question is, where do you think I can take the PTT linkage off?
So do you think I could do an additional circuit or something to make physical PTT work?
 



Sorry, my English!


Tnx and 73's Tamas

Re: Spice software

Evan Hand
 

Link works now.

Thank-you!
Evan
AC9TU

Re: Spice software

Jim - W7EZN
 

Just did a successful download.  Thanks for the tip!
--
73! de KJ7EZN   Jim

Re: no rf output #bitx40help

howard winwood G4GPF
 

Check the transmit relay, what are you using to turn TX on?


On Thu, 24 Oct 2019, 13:55 KG5YUO, <wtxrcdog@...> wrote:
Hello I completed my very 5 units and it doesn't seem to transmit. It shows tx on the screen but no output on the power meter/ swr meter and the transmit led dosen't lite up. 
Thanks.
Bruce KG5YUO
"A positive attitude may not solve all your problems, but it will annoy enough people to make it worth the effort."

Re: no rf output #bitx40help

Evan Hand
 

Did you purchase a case from another vendor?  If so, then which one, as they are wired differently and most likely is either a wiring issue or something with the add on boards the case supplier adds to the rig.

If installed per the stock wiring, then I would first verify that you are getting 12 vdc to the PA (brown wire on the 3 pin power connector).  If so, then I would verify that K1 is switching. and then K3.  I would also try CW mode to verify that it is in the PA part of the rig.

All of the above assumes that the receiver is working.

Good luck and welcome to the group.
73
Evan
AC9TU

Re: no rf output #bitx40help

KG5YUO
 

That is supposed to be version 5 u bits


Bruce KG5YUO

no rf output #bitx40help

KG5YUO
 

Hello I completed my very 5 units and it doesn't seem to transmit. It shows tx on the screen but no output on the power meter/ swr meter and the transmit led dosen't lite up. 
Thanks.
Bruce KG5YUO
"A positive attitude may not solve all your problems, but it will annoy enough people to make it worth the effort."

Re: Spice software

Evan Hand
 

The link provided appears to be down.

I will try again later.

73
Evan
AC9TU

Re: Spice software

Peter Burgess
 

Yes, significantly better.
One very useful feature is the ability to tune component values using a slider for both frequency domain and time domain simulations.
Being a more complex program does mean it has a steeper learing curve
Peter

Re: Spice software

JE Jesson
 

Is this better than LTSpice?


On Mon, Oct 21, 2019, 9:51 AM Vince Vielhaber <vev@...> wrote:

The author of Microcap is retiring and made the software free.  It used
to be $4500/seat.  Versions 10, 11 and 12 (12 is the latest) are now free.

http://www.spectrum-soft.com/download/download.shtm

Vince.
--
   K8ZW  http://www.metalworkingfun.com   http://www.hamradio.fun