Date   
Re: Very cheap, 24 cent microprocessors. #firmware #i2c

Bill Cromwell
 

Hi Tom,

Is your alter ego Rube Goldberg? <sly grin>

73,

Bill KU8H

On 3/8/20 12:11 AM, Tom, wb6b wrote:
On Sat, Mar 7, 2020 at 05:01 AM, Bill Cromwell wrote:
The solder had melted and the transistors fell out - shutting the
train wreck down
That's funny. Normally the joke is the finals sacrificed themselves to protect the fuse. Maybe some thought could be given to this form of circuit protection. Maybe attach a spring to the transistors to it won't be dependent on gravity.
Tom, wb6b
--
bark less - wag more

Re: Ordered ubitx6

David Wilcox
 

I am on the 3rd floor of a 4 story condo and find that the steel in the floor and ceiling of our deck plus the screen (stucco) in the sides of the building reduce my signal significantly. So hope you are using more than the 5 - 10 watts out of the ubitx6. I have tried half wave end feds over the deck sides and mag loops out on the deck with limited success even on FT8. I can hear signals and I show up on the pskreporter but contacts are few. I think 25 or more watts would help. A fiberglass pole stuck out at an angle from the building seems to work for some people.

Good luck.

Dave K8WPE

David J. Wilcox K8WPE’s iPad

On Mar 8, 2020, at 9:39 AM, Puneit Singh <puneit.singh@...> wrote:

CQ CQ
I am a dormant ham with callsign VU2TUM. I have ordered a ubitx6 as my first HF radio. What antenna should I get or DIY. I live on the 11 floor in an apartment and hence I need something that I can install in my balcony.
Are there any starting up guides for someone who passed their exam 10 years ago.
Any tips are welcome.
Thanks

73s
de VU2TUM
Puneit Singh
Gurgaon , India
Telegram handle @puneit


Ordered ubitx6

Puneit Singh
 

CQ CQ
I am a dormant ham with callsign VU2TUM. I have ordered a ubitx6 as my first HF radio. What antenna should I get or DIY. I live on the 11 floor in an apartment and hence I need something that I can install in my balcony.
Are there any starting up guides for someone who passed their exam 10 years ago.
Any tips are welcome.
Thanks

73s
de VU2TUM
Puneit Singh
Gurgaon , India
Telegram handle @puneit

i buy ubitx

ea5eq01@...
 

I buy ubitx version 3, which is located in Europe.
thanks
Send offers to my email, ea5eq01@...
 

ubitx v6 now help...

danilo datres
 

hello, tnx  for  help about  sound of my ubitx v6.  have a little answer about  v6 ... i must  make setup tune up,setting  bfo   as usual for other model ? are a newbie  and sorry for my  english..   thanks in advance  from italy   de in3izq danilo '73  

Re: automatic magnetic loop adjustment

Rene
 

Hello, i made a litle loop using 3 bicicle weels on a plate. I made it so that the middle wheel could move up and down so you can make pressure on the pipeevery round som tighter until you have a good circle.

Re: Cat interface #v6

Rene
 

Oké, bedankt voor het snelle antwoord, maar nogmaals, wat maakt de ptt omschakeling ??. Is dat via de usb ??
Groeten
Rene

Re: For Sale: UBITX V5 w/case, 2.8 Nextion, all KD6CEC upgrades, Sotabeams ssb/CW filter

Joel Trenalone
 

Hi David,

sorry, I’m not sure how the PM works on this board.  

just email me at jtrenalone@...,
thanks,
Joel
KD6AGW

Re: Very cheap, 24 cent microprocessors. #firmware #i2c

Tom, wb6b
 

On Sat, Mar 7, 2020 at 05:01 AM, Bill Cromwell wrote:
The solder had melted and the transistors fell out - shutting the train wreck down
That's funny. Normally the joke is the finals sacrificed themselves to protect the fuse. Maybe some thought could be given to this form of circuit protection. Maybe attach a spring to the transistors to it won't be dependent on gravity.

Tom, wb6b

Re: Very cheap, 24 cent microprocessors. #firmware #i2c

Tom, wb6b
 

Hi,

So far this is the best article I've found for developing with the 24 cent Nuvoton 8051 processor with open source tools. In this case using Linux. There is one tool that runs under Windows and the author has been able to run that tool under Linux using Wine.

http://www.mark-fink.de/2019-01-12-n76e003-firmware-nu-link/

I've installed SDCC on my Mac (using brew) and am currently working on getting the program upload utility to work with Wine on my Mac. The author used the older version of the chip and a different development board and programmer, hopefully that won't make any major difference.

My Nuvoton NuMicro "8051 NuTiny Board" (NT-MS51FB) came and will be testing it out when I get the programing utility working.

Working with this processor and tools (SDCC also compiles code for the Z80 and other old time eight bit processors) brings be back in a nice nostalgic way to the days of writing code working with my old IMSAI CP/M machine. Kind of a full circle completion feeling between the early Microcomputer days and the present.

Thanks to all the coronavirus concerns, I sprayed the board with a mist of the alcohol I use for cleaning boards after soldering. The  package arrived fairly quickly (normally a good thing). I'm sure I'm being over cautious, but what the heck, I have the spray bottle of alcohol. 

Tom, wb6b

Re: For Sale: UBITX V5 w/case, 2.8 Nextion, all KD6CEC upgrades, Sotabeams ssb/CW filter

David Clements
 

didn't get it 


On Sat, Mar 7, 2020 at 11:45 PM Joel Trenalone via Groups.Io <jtrenalone=yahoo.com@groups.io> wrote:
Hi David,
I just sent you a PM. Let me know if you received it,
joel

Re: For Sale: UBITX V5 w/case, 2.8 Nextion, all KD6CEC upgrades, Sotabeams ssb/CW filter

Joel Trenalone
 

Hi David,
I just sent you a PM. Let me know if you received it,
joel

Re: For Sale: UBITX V5 w/case, 2.8 Nextion, all KD6CEC upgrades, Sotabeams ssb/CW filter

David Clements
 

Interested in it
price include shipping 
     David KG4DCX

Re: For Sale: UBITX V5 w/case, 2.8 Nextion, all KD6CEC upgrades, Sotabeams ssb/CW filter

Joel Trenalone
 

Yes :)

Re: For Sale: UBITX V5 w/case, 2.8 Nextion, all KD6CEC upgrades, Sotabeams ssb/CW filter

David Clements
 

Still have radio

Re: Need Raduino for bitx 40 #radiuno #bitx40

MVS Sarma
 

There is no hardware difference in the board. The stock formware of bitx40 can be loaded in unitx raduino. I suppose many who changed over to other hardware would offer ubitx raduino, instead. While using, we can identify the pin details and use potentiometer nethod of tuning, instead. 

Approach this way.  All the best.
Sarma vu3zmv

On Sun, 8 Mar 2020, 5:33 am Jason Pirok, <jason.pirok@...> wrote:
Wow. Nobody with one of these for sale? I don't want it for free. Who has one they can part with?

Re: automatic magnetic loop adjustment

Kees T
 

I believe George Herron N2APB, of Midnight Designs found some really large Heliax and used that for his loop antenna. Haven't heard the results other than it cost a bunch to ship. 

I still think there is an opportunity to use surplus (cheap) hardline if you can figure out a way to low resistance "weld" it. Yes, the resistivity of aluminum is greater than that of copper but that can be compensated for by adding more aluminum and all you are interested in is RF skin effect depths.

73 Kees K5BCQ

Re: Need Raduino for bitx 40 #radiuno #bitx40

Jason Pirok
 

Wow. Nobody with one of these for sale? I don't want it for free. Who has one they can part with?

Re: automatic magnetic loop adjustment

Andy_501
 


On 2020-03-07 9:53 a.m., Andy_501 via Groups.Io wrote:

FWIW

I used 16.5 ft of surplus used 3/4 in. heliax. Stripped outer rubber cover off to keep it physically lighter.  designed mine for 20 M. Used ABS/PVC water pipe tee, union and support pipe to close loop.

If that is any help.   FYI here is design calculator page  http://www.66pacific.com/calculators/small-transmitting-loop-antenna-calculator.aspx

pardon  me if not directly related to discussion at hand as I am in on exchange midway through.

cheers & 73


On 2020-03-06 8:11 p.m., Kees T wrote:
We also tried using 10ft sections of large (2" +) copper hard tubing from Lowe's but the local muffler shops didn't want to run it through their equipment to make a circle. And we looked into the much larger copper rain gutter downspout which would be ideal but ran into the same bending problem. So we went back to a roll of soft copper tubing after trying (really cheap) surplus hardline. However ..... Didn't try to "solder" that hardline with the material I discussed earlier.

73 Kees K5BCQ  

For Sale: UBITX V5 w/case, 2.8 Nextion, all KD6CEC upgrades, Sotabeams ssb/CW filter

Joel Trenalone
 

Greetings All,

I’m selling my fully assembled UBITX V5 transceiver. It comes equipped with all of KD6CEC software and hardware upgrades (Nextion 2.8 screen, S-meter, SWR bridge and meter, and CW decode, band scan etc. ). Also it has the Sotabeams digital CW/SSB filter (the TX-RX has the CW filter LED). All installed and working well. It also has Kit-parts AGC installed, and a BCI filter installed. 

 

I’ve installed a switch for the filter were the XLR mic hole was.  It comes with the little condenser mic that came with the kit hooked up to the switch (it works). I never got around to making a proper mic for it. 

 

All cased in a blue amateurradiokits.com case. 


I’ve had great fun learning and building it, and operating it.

 

I’m asking $225 (basically what I paid for everything) + shipping (US only). PayPal accepted. 

 

Thanks,

Joel Trenalone

KD6AGW