¿ªÔÆÌåÓý

Date

Ubitx versus other rigs

 

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

Ubitx: not too bad....



73
Jean-Luc
F6HOY


Analog Smeter #smeter

 

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.


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:

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




Radio is magik !
73
Jean-Luc
F6HOY


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

 

Dear Jerry aa1of,

The modification for suppress the spurious of this time is as follow.
I hope this would be useful for you.
?

1) Add 3.3uF electrolytic capacitor and 0.1uF x 2 bypass capacitor to VCC line of Arduino board =>PIC1-1a? PIC1-2a
2) Insert high frequency choke of about 100 uH in the power line of Arduino =>PIC2a
3) Connect the minus line of power supply line to the ground =>PIC3-1a ?PIC3-2a
4) Connect the minus line of BITX40s to the ground
5) Add 0.1 uF ¡Á 2 bypass capacitor to VDD of BITX 40 board=>PIC5a
6) To prevent common mode noise, add 0.01uF x 2 bypass capacitor to the power connector=>PIC6a

73!
Akira
JJ1EPE


Re: #ubitx-help Strong Audio Tones in and outside audio receive passband #ubitx-help

 

Hi Jack,

I haven't seen other tested options and if my memory serves me right, that worked for two units.

Not a fun exercise in my opinion.

Good luck,

73, John


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

 

Great idea Tom, as this frees up IO pins on the main Nano for more controls.

I also used a 2nd Arduino as I2C slave for other purposes (SWR and supply voltage measures) but didn't think of connecting the 2nd unit as a display back-pack.

Excellent and very cost effective.

73, John (VK2ETA)


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

 

¿ªÔÆÌåÓý

This is ingenious.? With the low price of arduino clones, this makes a lot of sense.

Mike ZL1AXG

On 4/07/18 12:50 AM, Tom, wb6b wrote:
Hi,

I want to expand the amount of digital and analog I/O pins available to add enhancements to my uBITX.

To do that I created a Smart LCD Backpack to replace the commonly found ones on the inexpensive 2x16 and 4x20 I2C displays found on eBay and Amazon.

I uploaded a library to GitHub that allows you to program a Arduino Nano to emulate the common I2C to parallel backpack used on the I2C displays. The Smart I2C Backpack, additionally, allows you to read and write the analog and digital pins on the Smart I2C Display Backpack.

The package includes a interface library that you include in your code to interface with the Extended I/O functionally. Also included are two example Sketches. One is the code you program into the Smart Backpack. The other is a demo/test program you program into another Arduino and connected via the I2C buss to the Smart Backpack Display.

The Smart Display Backpack should work with firmware using standard I2C LiquidCrystal drivers such as the?KD8CEC firmware.

The code uses the following libraries:
The are all installable from the Arduino library manager, the GitHub URLs are just for reference.
SoftTimer.h ?//
Also requires:

LiquidCrystal_PCF8574.h

I believe these are part of the base Arduino software install.
Wire?
LiquidCrystal

Hope others enjoy this new display and I/O expander.?

Here is the link to the code.









--
Mike Woods
mhwoods@...


Re: Easy, Inexpensive Cooling Fan, Excelway Case

 

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Well the good news is that is not how it works.? It works in semi-break-in mode, where the TX mode only goes back to RX with a reasonable pause in sending characters (adjustable in the menu).?? You should be fine in connecting the fan to the TX voltage line.

Mike ZL1AXG

On 4/07/18 9:42 AM, Arvo KD9HLC via Groups.Io wrote:
On Tue, Jul 3, 2018 at 06:46 am, Gary Anderson wrote:
?I would think that during a CW transmit, that the fan should remain On, and not switch On/Off with every dit and dah.?
Oh, brother, I'd not thought of that either.? Is that how this rig works in CW mode?? Yikes.


--
Mike Woods
mhwoods@...


Re: experience with Sunil VU3SUA's enclosures #ubitx

 

Thank you for the update, Sunil!

73 Mike KK7ER


Re: Hijacked: C vs C++

 

Oh, that reminds me.
Scared the crap out of me to have to walk through the barn on my way to?
the outhouse after dark when I was about 5.
Perhaps I had seen The Wizard of Oz or something,
but specifically remember lions as a major source of fear.

All right, we must bring this back on topic.
Too bad Dorthy didn't have a Bitx with her?
so she could reassure the folks back home that she was ok.
Though come to think of it, I guess she wasn't ok,
and it really would not have been of much use to her...

Jerry, KE7ER


On Wed, Jul 4, 2018 at 08:12 pm, Arv Evans wrote:
Most old timers have several war stories regarding how things were in the bad old
days before computers and toilets had been invented.? 40 years from now today's
youngsters will be telling their own war stories about how bad things were in the
early BITX days.? They too will feel justified in off-topic posts because it is part
of their own history.?


Re: Hijacked: C vs C++

 

Most old timers have several war stories regarding how things were in the bad old
days before computers and toilets had been invented.? 40 years from now today's
youngsters will be telling their own war stories about how bad things were in the
early BITX days.? They too will feel justified in off-topic posts because it is part
of their own history.?
_._


On Wed, Jul 4, 2018 at 8:40 PM Jack Purdum via Groups.Io <jjpurdum=[email protected]> wrote:
When I was doing my dissertation research in the late 60's, I too used the 80-column punch cards on an IBM 360. I was doing a lot of stepwise multiple regression, but I remember dropping my cards into the hopper and walking over to the printer just as my output was being spooled out. I finished up my research where I took my first teaching job, which only had an IBM 1130. I was still doing some final runs and dropped my cards into the hopper and walked over to the printer to catch my output.

Nothing...

I told the systems tech that the system crashed and I didn't get my printout. He glanced over at the main console and said: "Everything's fine...it's thinking...

Jack, W8TEE

On Wednesday, July 4, 2018, 5:04:15 PM EDT, gw0div@... via Groups.Io <gw0div=[email protected]> wrote:


Ah!! The days of the DEC 20/60 and VAX11/740 with IBM 29 card punches!! And the joy of COBOL!

Rhys?
GW0DIV?


Re: Hijacked: C vs C++

Jack Purdum
 

When I was doing my dissertation research in the late 60's, I too used the 80-column punch cards on an IBM 360. I was doing a lot of stepwise multiple regression, but I remember dropping my cards into the hopper and walking over to the printer just as my output was being spooled out. I finished up my research where I took my first teaching job, which only had an IBM 1130. I was still doing some final runs and dropped my cards into the hopper and walked over to the printer to catch my output.

Nothing...

I told the systems tech that the system crashed and I didn't get my printout. He glanced over at the main console and said: "Everything's fine...it's thinking...

Jack, W8TEE

On Wednesday, July 4, 2018, 5:04:15 PM EDT, gw0div@... via Groups.Io <gw0div@...> wrote:


Ah!! The days of the DEC 20/60 and VAX11/740 with IBM 29 card punches!! And the joy of COBOL!

Rhys?
GW0DIV?


Re: Hijacked: C vs C++

 

¿ªÔÆÌåÓý

When I was attending USF back in the 70s, the system and four mainframe printers (the old ultra-high-speed drum printers) were in the room where we submitted our punch card stacks.? They routinely had several huge packing-crate boxed of tractor-feed paper behind each printer - all connected together, and it would print out a page (lots of text) in a couple of seconds or so.? One day I saw one of the funniest sights I've ever seen connected to computers - somehow all four printers had been put into full page-feed mode.? The paper was flying vertically out of the top of the printer and hitting the ceiling above it (all four printers), first it would pile up against the ceiling and then fall forward, then backward.? The sysop for that day was in the back of the room running around in a little circle while shouting "Turn it off!? Turn it off!!! Turn it off!!!" - and although they had everything shut down in less than a minute - the area behind the counter was waist deep in loose printer paper.? It took them (as I remember) at least a day to get everything cleaned up and back in operation.? (We had to come back a few days later with our cards.)

I had one of those printers, along with a mainframe given to me several years ago, but could never find the right adapter or terminal to use them... and the Florida humidity got to them and ruined them.? I forget all the specs now, but it had for it's day a huge hard drive, a fast high-capacity platter drive, and SCSI connectivity (except you couldn't program through the SCSI port).

On 07/04/2018 04:49 PM, Clark Martin wrote:

I started with a 110 baud teletype (also in high school). ?We learned BASIC on it. ?Once I learned ¡®C¡¯ I never went back to BASIC.

I don¡¯t recall getting reams of paper due to Fortran errors. ?I remember that you could get a very large stack of paper if you botched the first character (carriage control). ?It would feed the paper at maximum speed and only the CARRIAGE STOP button would stop it. ?It was always something to see the operator come flying out of their seat to reach over the printer and blindly slap the CARRIAGE STOP button (inconveniently located on the other side of the printer).



Clark Martin
KK6ISP

On Jul 4, 2018, at 12:53 PM, Robert D. Bowers <n4fbz@...> wrote:

Talk about bringing back memories!

I learned on a 300baud teletype in high school - my school was the second in the nation (so I understand) to offer computer programming, and I took it the second year it was offered.? We had access to the school system's mainframe through the teletype.? We also got introduced to our first computer game - "Star Trek".

Then I progressed to Fortran on punch cards.? And waited for the (hopefully thin) stack of printout.? (For those who don't understand, if you did the job right, you got a very thin stack of fanfold paper.? If you made a mistake in your programming, you got a big pile with all of the messages and errors caused by your mistake.)

Back on Topic - I'd wondered why Arduino code seemed familiar and why I had little problem figuring out the routines I needed.? I'd studied C on my own several years ago.





Re: Hijacked: C vs C++

Jack Purdum
 

That's why you see "Hijacked" in the subject line.

Jack, W8TEE

On Wednesday, July 4, 2018, 8:27:05 PM EDT, Robert Alexander <ralexander22@...> wrote:


I don¡¯t see anything about the BITX or UBITX radios in this thread.

?

73

Robert (N5RHA)

?

?

?

From: [email protected] <[email protected]> On Behalf Of Jerry Gaffke via Groups.Io
Sent: Wednesday, July 4, 2018 2:06 PM
To: [email protected]
Subject: Re: [BITX20] Hijacked: C vs C++

?

Forty years ago, programming might involve typing into an ADM-3 terminal
with a 1200 baud? UART connection to a Vax-11/780 under BSD Unix.
If you were lucky, could be worse.
You could have been submitting decks of punched cards in Cobol?
to some batch system.

With several dozen other programmers sharing the same VAX,?
might take a minute or two after submitting name and password before?
you were fully logged in and had a shell prompt.
So the sysadmin would generally have the fortune cookie program dump
some text to the screen for you to ponder while twiddling thumbs.

Here's another example, chosen from thousands:

'Twas midnight, and the UNIX hacks
Did gyre and gimble in their cave
All mimsy was the CS-VAX
And Cory raths outgrabe.
 ?
"Beware the software rot, my son!
The faults that bite, the jobs that thrash!
Beware the broken pipe, and shun
The frumious system crash!"


OK, now we're totally hijacked.
Excellent name for the thread!

Jerry


On Wed, Jul 4, 2018 at 09:29 am, Arv Evans wrote:

For those who did not understand your reference to Fortune Cookies.


Re: #ubitx-help Strong Audio Tones in and outside audio receive passband #ubitx-help

 

Is replacing the Arduino?still the easiest way to fix the 13kHz tone in the headphones?

Jack

KG4GJY


Re: Hijacked: C vs C++

 

¿ªÔÆÌåÓý

I don¡¯t see anything about the BITX or UBITX radios in this thread.

?

73

Robert (N5RHA)

?

?

?

From: [email protected] <[email protected]> On Behalf Of Jerry Gaffke via Groups.Io
Sent: Wednesday, July 4, 2018 2:06 PM
To: [email protected]
Subject: Re: [BITX20] Hijacked: C vs C++

?

Forty years ago, programming might involve typing into an ADM-3 terminal
with a 1200 baud? UART connection to a Vax-11/780 under BSD Unix.
If you were lucky, could be worse.
You could have been submitting decks of punched cards in Cobol?
to some batch system.

With several dozen other programmers sharing the same VAX,?
might take a minute or two after submitting name and password before?
you were fully logged in and had a shell prompt.
So the sysadmin would generally have the fortune cookie program dump
some text to the screen for you to ponder while twiddling thumbs.

Here's another example, chosen from thousands:

'Twas midnight, and the UNIX hacks
Did gyre and gimble in their cave
All mimsy was the CS-VAX
And Cory raths outgrabe.
?
"Beware the software rot, my son!
The faults that bite, the jobs that thrash!
Beware the broken pipe, and shun
The frumious system crash!"


OK, now we're totally hijacked.
Excellent name for the thread!

Jerry


On Wed, Jul 4, 2018 at 09:29 am, Arv Evans wrote:

For those who did not understand your reference to Fortune Cookies.


Re: Who has uBITX with Nextion display in action pictures ?

 

Joe:? I found the files in the 'files' section of this board.? Works great!?

Many thanks to you and Allen!

73, Bill


Re: Hijacked: C vs C++

 

Ah!! The days of the DEC 20/60 and VAX11/740 with IBM 29 card punches!! And the joy of COBOL!

Rhys?
GW0DIV?


Re: RFI from uBitx TX after AGC and other mods installed

 

Glad to help in solving the problem.
Regards to all
Lawrence


On Tue, Jul 3, 2018 at 6:21 AM, Kees T <windy10605@...> wrote:

Thanks guys, Don and I appreciate it.?

Glad to see so much "building enthusiasm".?As of today we're up to 676 AGC kits and/or Click kits ordered?and?shipped.

73 Kees K5BCQ

----------------------------------------------------------------------------------------------------------
New Topic.............
I'm just about ready to make a pass on an OLED display, Nano microcontroller, and 2x AD8307s mWattmeter/SWR device.??So far, it's all mounted on a 50mm x 50mm board
(2x2 or qty 4 on a 100mm panel) including the Stockton bridge, BNC/SMA connectors, Nano, and header attached OLED. Still looking for firmware to run.
?
?



Re: Hijacked: C vs C++

 

¿ªÔÆÌåÓý

I started with a 110 baud teletype (also in high school). ?We learned BASIC on it. ?Once I learned ¡®C¡¯ I never went back to BASIC.

I don¡¯t recall getting reams of paper due to Fortran errors. ?I remember that you could get a very large stack of paper if you botched the first character (carriage control). ?It would feed the paper at maximum speed and only the CARRIAGE STOP button would stop it. ?It was always something to see the operator come flying out of their seat to reach over the printer and blindly slap the CARRIAGE STOP button (inconveniently located on the other side of the printer).



Clark Martin
KK6ISP

On Jul 4, 2018, at 12:53 PM, Robert D. Bowers <n4fbz@...> wrote:

Talk about bringing back memories!

I learned on a 300baud teletype in high school - my school was the second in the nation (so I understand) to offer computer programming, and I took it the second year it was offered.? We had access to the school system's mainframe through the teletype.? We also got introduced to our first computer game - "Star Trek".

Then I progressed to Fortran on punch cards.? And waited for the (hopefully thin) stack of printout.? (For those who don't understand, if you did the job right, you got a very thin stack of fanfold paper.? If you made a mistake in your programming, you got a big pile with all of the messages and errors caused by your mistake.)

Back on Topic - I'd wondered why Arduino code seemed familiar and why I had little problem figuring out the routines I needed.? I'd studied C on my own several years ago.




Re: Hijacked: C vs C++

 

¿ªÔÆÌåÓý

Talk about bringing back memories!

I learned on a 300baud teletype in high school - my school was the second in the nation (so I understand) to offer computer programming, and I took it the second year it was offered.? We had access to the school system's mainframe through the teletype.? We also got introduced to our first computer game - "Star Trek".

Then I progressed to Fortran on punch cards.? And waited for the (hopefully thin) stack of printout.? (For those who don't understand, if you did the job right, you got a very thin stack of fanfold paper.? If you made a mistake in your programming, you got a big pile with all of the messages and errors caused by your mistake.)

Back on Topic - I'd wondered why Arduino code seemed familiar and why I had little problem figuring out the routines I needed.? I'd studied C on my own several years ago.


On 07/04/2018 03:05 PM, Jerry Gaffke via Groups.Io wrote:

Forty years ago, programming might involve typing into an ADM-3 terminal
with a 1200 baud? UART connection to a Vax-11/780 under BSD Unix.
If you were lucky, could be worse.
You could have been submitting decks of punched cards in Cobol?
to some batch system.

With several dozen other programmers sharing the same VAX,?
might take a minute or two after submitting name and password before?
you were fully logged in and had a shell prompt.
So the sysadmin would generally have the fortune cookie program dump
some text to the screen for you to ponder while twiddling thumbs.

Here's another example, chosen from thousands:

'Twas midnight, and the UNIX hacks
Did gyre and gimble in their cave
All mimsy was the CS-VAX
And Cory raths outgrabe.

"Beware the software rot, my son!
The faults that bite, the jobs that thrash!
Beware the broken pipe, and shun
The frumious system crash!"

OK, now we're totally hijacked.
Excellent name for the thread!

Jerry


On Wed, Jul 4, 2018 at 09:29 am, Arv Evans wrote:
For those who did not understand your reference to Fortune Cookies.