Date   
Re: Known issues on uBITX r4 #ubitx

Russ KG0BK
 

Agreed. My uBitx when set at 12.6 volts draws about 2.4 amps.

Re: Nextion display bezel

Art Olson
 

Gary

I selected PETG. looks great

73
Art N2AJO

On Jul 5, 2018, at 8:22 AM, Gary Hanson <grhanson@...> wrote:

Art Olson,

When ordering a bezel for the Nextion display, I noticed that 3D Hubs offered 8 different types of plastic options. I wondered what you used?


Gary Hanson

Re: Analog Smeter #smeter

JEAN-LUC F6HOY
 

Thanks for good adress.
 A little bit more expensive than from China (i am not a Prime member). And no shipping to France... Snif...
73

Re: Easy, Inexpensive Cooling Fan, Excelway Case

Gary Anderson
 

Thanks Mike for highlighting my misunderstanding about how CW is implemented on the uBITX!
I should have reviewed the source code / schematics before posting, pretty obvious when I look at it :)
.. the difference between energizing the "TX" and the "CW-KEY"

Best Regards,
Gary

Re: Bitx40 75KHz Spurious, How to solve it. #bitx40

Skip Davis
 

Great work Akira, thanks for the pictures.

Skip Davis, NC9O

On Jul 5, 2018, at 05:12, jj1epe@... wrote:

Akira

Re: Completed my QCX #ubitx

Art Olson
 

Judd

Great job. I added a button also. Easier to access menu. Where did you get your folding kickstand 

Art- N2AJO 


On Jul 5, 2018, at 8:55 AM, pat griffin <patgriffin@...> wrote:

Nice job.

Also, I see you are using the S meter and v 1.094 firmware as am I. Can you tell me the range in uBitx Manager you are seeing for the s-meter readings and if you are using the AGC circuit?

Thanks,

Pat AA4PG



From: BITX20@groups.io <BITX20@groups.io> on behalf of WD8WV <juddie.d.burgess@...>
Sent: Thursday, July 5, 2018 6:27:38 AM
To: BITX20@groups.io
Subject: Re: [BITX20] Completed my QCX #ubitx
 
Updated picture.

I added a momentary button just right if the VFO to access the menu options so I wouldn’t have to push the VFO, which I still can.  Also added a folding kickstand so when on the bench the front is elevated.
--
Judd, WD8WV

Re: Hijacked: C vs C++

Jack, W8TEE
 

That's not necessarily bulletproof, either, but a step in the right direction. Try this:

void setup() {

  char temp[5];
  int val = 0;
  Serial.begin(115200);
  while (!Serial);                // Necessary on some faster Arduinos, like the Due

  strncpy(temp, "12345", 5);
  Serial.print("temp = ");
  Serial.print(temp);
  Serial.print("# val = ");
  Serial.println(val);
}

void loop() {
}

It prints out "12345". The fact that it prints out the entire string means the string termination character is stored...where? The documentation for strncpy() states:

    No null-character is implicitly appended at the end of destination if source is longer than num. Thus, in this case, destination shall not be considered
    a null terminated C string (reading it as such would overflow).

Moral: The strn*() function don't guarantee  protection against buffer overflow. It simply means you're thinking about it.

Jack, W8TEE

On Thursday, July 5, 2018, 8:56:00 AM EDT, Brian Bowling <bowlingb@...> wrote:


How about making your programming safer and more robust?  Strcat() and strcpy() can be found at the root of so many buffer overflows. If you must use them at least use the 'n' versions strncpy() and strncat(). 

Brian

Re: Hijacked: C vs C++

Brian Bowling
 

How about making your programming safer and more robust?  Strcat() and strcpy() can be found at the root of so many buffer overflows. If you must use them at least use the 'n' versions strncpy() and strncat(). 

Brian

Re: Completed my QCX #ubitx

pat griffin
 

Nice job.

Also, I see you are using the S meter and v 1.094 firmware as am I. Can you tell me the range in uBitx Manager you are seeing for the s-meter readings and if you are using the AGC circuit?

Thanks,

Pat AA4PG


Pat Griffin
http://www.cahabatechnology.com/aa4pg.html


From: BITX20@groups.io <BITX20@groups.io> on behalf of WD8WV <juddie.d.burgess@...>
Sent: Thursday, July 5, 2018 6:27:38 AM
To: BITX20@groups.io
Subject: Re: [BITX20] Completed my QCX #ubitx
 
Updated picture.

I added a momentary button just right if the VFO to access the menu options so I wouldn’t have to push the VFO, which I still can.  Also added a folding kickstand so when on the bench the front is elevated.
--
Judd, WD8WV

Re: Completed my QCX #ubitx

Jack, W8TEE
 

Very nice!

Jack, W8TEE

On Thursday, July 5, 2018, 8:27:52 AM EDT, WD8WV <juddie.d.burgess@...> wrote:


Updated picture.

I added a momentary button just right if the VFO to access the menu options so I wouldn’t have to push the VFO, which I still can.  Also added a folding kickstand so when on the bench the front is elevated.
--
Judd, WD8WV

Re: Analog Smeter #smeter

Dennis Zabawa
 

Re: Completed my QCX #ubitx

WD8WV
 

Updated picture.

I added a momentary button just right if the VFO to access the menu options so I wouldn’t have to push the VFO, which I still can.  Also added a folding kickstand so when on the bench the front is elevated.
--
Judd, WD8WV

Re: Completed my QCX #ubitx

WD8WV
 

It is a 2.8 Nextion screen.  Thanks!
--
Judd, WD8WV

Nextion display bezel

Gary Hanson
 

Art Olson,

When ordering a bezel for the Nextion display, I noticed that 3D Hubs offered 8 different types of plastic options. I wondered what you used?


Gary Hanson

Re: Analog Smeter #smeter

w4rjp
 

Jean-Luc,

Thanks for sharing your BitX modifications, especially the Analog S meter. I collect D'Arsonval meters and like the retro look for my radios.

73, Bob W4RJP

Re: Went Dead

Bill Watkins
 

Replaced both IRF510 with lead-free version.  Used insulator kit.  Installed fan.  Did PA bias. Up and running again. Thanks for all suggestions. 

Bill
K0WHW

Re: Smart Analog/Digital I/O Expansion and LCD Display for the uBITX. #firmware #ubitx #nano #radiuno

Tom, wb6b
 

Thanks very much for the kind compliments. I hope this project turns out to useful to others on this forum. 

I tried to make it relatively easy to use, and easy for the user to add custom functionally that can offload some work from the uBITX to the backpack.

As this is the first release, I hope there are only very minimal hiccups in the code.

Tom, wb6b

BITX QSO Afternoon/Evening, Sunday, July 8, 3PM & 7PM Local Time, 7277 kHz in North America, 7177 kHz elsewhere.

John P
 

BITX QSO Afternoon/Evening, Sunday, July 8, 3PM & 7PM Local Time, 7277 kHz in North America, 7177 kHz elsewhere.

Join us as we make contacts with our BitX-40s or uBitXs or anything else on 7.277 MHz in 40 meters!

This is a worldwide event for BitX40 (and other QRP) stations starting at 3PM and 7pm in each time zone. To participate, call CQ BitX on Sunday, starting at 3PM and/or 7PM your local time. The BitX QSO Night continues through the evening and conditions usually improve after sunset, so it is worthwhile to participate later in the evening.

Suggested Best Operating Practices:

Work at QRP power levels unless conditions require more power.
Call and listen for CQ BITX on the hour and every quarter hour.
It is helpful if you call CQ BITX with your callsign, name and location. 
Repeat your callsign a number of times during your CQ BITX and during QSO's.
Start a QSO by confirming the callsign, location, name and signal report of the other operator.
Say the callsign, name and location of the other operator so others can hear.
If the frequency is busy, avoid long conversations.
After your initial QSO is complete, ask if there are any other stations who would like to contact.

Report your QSO's, discuss propagation, noise, signal reports, audio reports, antenna type, etc. in this thread.

This is an undirected, scheduled event.  The BITX QSO Night relies on you to call CQ BITX to initiate contacts with other stations, so warm up that final and transmit a few calls on Sunday evening.  Talk to you then!
--
John - WA2FZW

Ubitx versus other rigs

JEAN-LUC F6HOY
 

A small comparaison between Ubitx, HW101 Heathkit and a 51S1 Collins.

Ubitx: not too bad....

https://www.youtube.com/watch?v=bmH6Ow_DOiU&feature=youtu.be

73
Jean-Luc
F6HOY

Analog Smeter #smeter

JEAN-LUC F6HOY
 

Just for fun for 15€...

On my first Bitx40 i added an analog smeter with simple circuit on audio line and a 500 microA vu-meter.
Al was fine except that without AGC it is just a signal level.
http://www.f6hoy.com/bitx/

On my Ubitx i add a Chinese Audio Vu-meter that is better...
Around 15€ with a circuit and 2 vu-meters.
And with the input circuit it is just like an AGC.
For fun i have nice warm lights..
And for the same price you have another Vu-meter and a second input....
sevral shops in China.
For axample: https://fr.aliexpress.com/item/2-Pcs-VU-Panneau-M-tre-Chaud-Back-Light-Enregistrement-Durable-Pilote-Conseil-Module-C-bles/32845258857.html?spm=a2g0w.10010108.1000014.4.7f4136c0wSoVBV&scm=1007.13338.98644.000000000000000&scm_id=1007.13338.98644.000000000000000&scm-url=1007.13338.98644.000000000000000&pvid=52300d9e-a326-461a-bc52-4ef4dd0f467e&_t=pvid%3A52300d9e-a326-461a-bc52-4ef4dd0f467e%2Cscm-url%3A1007.13338.98644.000000000000000

(the hole in front panel is not perfect. I am going to make a new panel...)




Radio is magik !
73
Jean-Luc
F6HOY