Date   
Re: Slack chat client

David Arthur
 

Likewise, we have the Discord chat server setup. Link is in my sig. We have a record breaking 8 users active at the moment! :)

--
David K4DBZ
Unofficial bitx chatroom: https://discord.gg/CrHvWFc

Re: [SPAM] Re: [BITX20] Replacing the PA section on Bitx 40

 

Transmits fine Bill!

I have not experimented with correct bias setting but I was running more than 100 mils bias..
That board got displaced by the new toy uBitx.. I'll be back to it later later.


At 01/02/2018, you wrote:
Also… have you had it on the air like that yet?
 
 
Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ
 
Owner - Operator
Big Signal Ranch – K9ZC
Staunton, Illinois
 
Owner – Operator
Villa Grand Piton – J68HZ
Soufriere, St. Lucia W.I.
Rent it: www.VillaGrandPiton.com
Like us on Facebook! facebook icon
 
 
email:  bill@...
 
From: BITX20@groups.io [ mailto:BITX20@groups.io] On Behalf Of Raj vu2zap
Sent: Thursday, February 01, 2018 4:24 AM
To: BITX20@groups.io
Subject: [SPAM] Re: [BITX20] Replacing the PA section on Bitx 40
 
Here is how I made the socket and mounted the RDD16

Note the RDD is reversed and  then the gate is actually soldered to the IRF gate line which goes behind the FET.
Now I can use either of them..

You will need to think of a heat sink plate that fits this way!

Emacs!

Case designed for uBITX - #3d_printing

Carl Beck
 

I designed a 3D printed Case especially for the uBITX.

Re: uBITX Firmware (CEC) 0.30 released (Test version). #ubitx

matjaz
 

hello,
i download source file ans compile.
In arduino recevied this mesage.
 
C:\ubitx\ubitx-0.33\ubitx_20\ubitx_idle.ino: In function 'void updateLine2Buffer(char)':
 
C:\ubitx\ubitx-0.33\ubitx_20\ubitx_idle.ino:150:32: warning: invalid conversion from 'byte* {aka unsigned char*}' to 'char*' [-fpermissive]
 
       strncat(line2Buffer, b, 5);
 
                                ^
 
In file included from C:\Program Files\Arduino\hardware\arduino\avr\cores\arduino/Arduino.h:25:0,
 
                 from sketch\ubitx_20.ino.cpp:1:
 
c:\program files\arduino\hardware\tools\avr\avr\include\string.h:422:14: note: initializing argument 1 of 'char* strncat(char*, const char*, size_t)'
 
extern char *strncat(char *, const char *, size_t);
 
              ^
 
C:\ubitx\ubitx-0.33\ubitx_20\ubitx_idle.ino:154:31: warning: invalid conversion from 'byte* {aka unsigned char*}' to 'const char*' [-fpermissive]
 
         printLine2(line2Buffer);   
 
                               ^
 
C:\ubitx\ubitx-0.33\ubitx_20\ubitx_ui.ino:201:6: note: initializing argument 1 of 'void printLine2(const char*)'
 
void printLine2(const char *c){
 
      ^
 
C:\ubitx\ubitx-0.33\ubitx_20\ubitx_idle.ino: In function 'void idle_process()':
 
C:\ubitx\ubitx-0.33\ubitx_20\ubitx_idle.ino:223:31: warning: invalid conversion from 'byte* {aka unsigned char*}' to 'const char*' [-fpermissive]
 
         printLine2(line2Buffer);
 
                               ^
 
C:\ubitx\ubitx-0.33\ubitx_20\ubitx_ui.ino:201:6: note: initializing argument 1 of 'void printLine2(const char*)'
 
void printLine2(const char *c){
 
      ^
What i am doing wrong.
73
Matjaz
 

From: Ian Lee
Sent: Wednesday, January 31, 2018 1:10 PM
Subject: Re: [BITX20] uBITX Firmware (CEC) 0.30 released (Test version). #ubitx
 
You can download source, compiled hex file, etc. from the link below.
 
How to upload Hex files can be found in my blog below.
 
Thanks for your interesting
 
Ian KD8CEC
 
2018-01-31 20:58 GMT+09:00 Kari Syrjänen <beaconhunter@...>:
Is there compiled version available somewhere?

Kari OH6YW
 

--
Best 73
KD8CEC / Ph.D ian lee
kd8cec@...
www.hamskey.com (my blog)

Re: Care and Feeding of SMD Parts

Tim Gorman
 

I've been working with these parts for several years. I take a piece of printer paper and slit the corners so I can fold it into a tray. The parts are easy to see against the white paper and the sides of the tray keep them from flying off into limbo. The tray is easy to move to wherever I am working making access easier. 

Re: uBITX Firmware (CEC) 0.30 released (Test version). #ubitx

Ian Lee
 

This is a warning that I am using byte and char without distinction.

If it does not compile and upload to ubitx, please wait a few days. I will remove warnings and release again.

I had a report from a beta tester using another compiler. Wait a moment and you will be able to download a clean source.

Thanks for information.

Ian kd8cec

2018. 2. 2. 오전 12:01에 "matjaz via Groups.Io" <matjaz_zejn=t-2.net@groups.io>님이 작성:

hello,
i download source file ans compile.
In arduino recevied this mesage.
 
C:\ubitx\ubitx-0.33\ubitx_20\ubitx_idle.ino: In function 'void updateLine2Buffer(char)':
 
C:\ubitx\ubitx-0.33\ubitx_20\ubitx_idle.ino:150:32: warning: invalid conversion from 'byte* {aka unsigned char*}' to 'char*' [-fpermissive]
 
       strncat(line2Buffer, b, 5);
 
                                ^
 
In file included from C:\Program Files\Arduino\hardware\arduino\avr\cores\arduino/Arduino.h:25:0,
 
                 from sketch\ubitx_20.ino.cpp:1:
 
c:\program files\arduino\hardware\tools\avr\avr\include\string.h:422:14: note: initializing argument 1 of 'char* strncat(char*, const char*, size_t)'
 
extern char *strncat(char *, const char *, size_t);
 
              ^
 
C:\ubitx\ubitx-0.33\ubitx_20\ubitx_idle.ino:154:31: warning: invalid conversion from 'byte* {aka unsigned char*}' to 'const char*' [-fpermissive]
 
         printLine2(line2Buffer);   
 
                               ^
 
C:\ubitx\ubitx-0.33\ubitx_20\ubitx_ui.ino:201:6: note: initializing argument 1 of 'void printLine2(const char*)'
 
void printLine2(const char *c){
 
      ^
 
C:\ubitx\ubitx-0.33\ubitx_20\ubitx_idle.ino: In function 'void idle_process()':
 
C:\ubitx\ubitx-0.33\ubitx_20\ubitx_idle.ino:223:31: warning: invalid conversion from 'byte* {aka unsigned char*}' to 'const char*' [-fpermissive]
 
         printLine2(line2Buffer);
 
                               ^
 
C:\ubitx\ubitx-0.33\ubitx_20\ubitx_ui.ino:201:6: note: initializing argument 1 of 'void printLine2(const char*)'
 
void printLine2(const char *c){
 
      ^
What i am doing wrong.
73
Matjaz
 
From: Ian Lee
Sent: Wednesday, January 31, 2018 1:10 PM
Subject: Re: [BITX20] uBITX Firmware (CEC) 0.30 released (Test version). #ubitx
 
You can download source, compiled hex file, etc. from the link below.
 
How to upload Hex files can be found in my blog below.
 
Thanks for your interesting
 
Ian KD8CEC
 
2018-01-31 20:58 GMT+09:00 Kari Syrjänen <beaconhunter@...>:
Is there compiled version available somewhere?

Kari OH6YW
 

--
Best 73
KD8CEC / Ph.D ian lee
kd8cec@...
www.hamskey.com (my blog)



--
Best 73
KD8CEC / Ph.D ian lee
kd8cec@...
www.hamskey.com (my blog)

Re: uBITX Firmware (CEC) 0.30 released (Test version). #ubitx

Ian Lee
 

Andrew

Thanks for using this firmware.

I will release v1.0 soon

Ian KD8CEC


2018. 2. 1. 오후 8:09에 "Andrew Farkas" <afarkas@...>님이 작성:

Very nice. I wish I could figure out FT-8. I can't get anyone to comeback on my regular rig. These apps are very intricicate. Too bad there isnt some kind of standard for making radio software work.

Andy

VA3AAF

On Feb 1, 2018 3:19 AM, Kari Syrjänen <beaconhunter@...> wrote:
Ian's firmwares working great! I have been using then since version 0.25

Now running 0.33 and working 7MHz FT8-mode. Over 350 QSO.s in my logbook

TNX!

Kari OH5YW



--
Best 73
KD8CEC / Ph.D ian lee
kd8cec@...
www.hamskey.com (my blog)

Re: Care and Feeding of SMD Parts

Don WB4AFP
 

I have been using a 3-ring binder with clear plastic pages meant to hold trading cards -- 9 to a page.  The little strips go into the pockets quite nicely.  This also works pretty well for thru-hole resistors and caps.  With loose parts in the pockets it does take a little care leafing thru the pages not to spill the parts.

I label the pockets using a small permanent marker on the window, and a very fine marker on the back of the strips.

Chip resistors tend to be marked with part values, which can be read under a low-power microscope.  Capacitors tend not to have any markings.  I guess that there are so many things you need to know about a capacitor, like what ceramic, and the voltage rating, that you would need an electron microscope to read it.  The only markings are on the reels the tapes come on.

Industrially, these things are handled only as full reels, which are put into the pick-and-place machine AKA "chip shooter".  Individual markings on the parts themselves would be redundant.

Re: uBITX Firmware (CEC) 0.30 released (Test version). #ubitx

Ian Lee
 

Kari

Thanks for using this firmware.

I worked on uBITX firmware yesterday and customize wsjtx from today. I will introduce something interesting in a few days. If you are using digital mode, it will probably be interesting.

I also love FT8 and JT65

Ian KD8CEC

2018. 2. 1. 오후 5:19에 "Kari Syrjänen" <beaconhunter@...>님이 작성:

Ian's firmwares working great! I have been using then since version 0.25

Now running 0.33 and working 7MHz FT8-mode. Over 350 QSO.s in my logbook

TNX!

Kari OH5YW



--
Best 73
KD8CEC / Ph.D ian lee
kd8cec@...
www.hamskey.com (my blog)

Re: [SPAM] Re: [BITX20] Replacing the PA section on Bitx 40

M Garza <mgarza896@...>
 

From what I read, bias should be between 300 to 500ma.  Can anyone confirm this?
I like your socket idea, Raj.  Very good idea.  Makes experimenting easier.

Marco - KG5PRT 

On Feb 1, 2018 8:09 AM, "Raj vu2zap" <rajendrakumargg@...> wrote:
Transmits fine Bill!

I have not experimented with correct bias setting but I was running more than 100 mils bias..
That board got displaced by the new toy uBitx.. I'll be back to it later later.

At 01/02/2018, you wrote:
Also… have you had it on the air like that yet?
 
 
Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ
 
Owner - Operator
Big Signal Ranch – K9ZC
Staunton, Illinois
 
Owner – Operator
Villa Grand Piton – J68HZ
Soufriere, St. Lucia W.I.
Rent it: www.VillaGrandPiton.com
Like us on Facebook! facebook icon
 
 
email:  bill@...
 
From: BITX20@groups.io [ mailto:BITX20@groups.io] On Behalf Of Raj vu2zap
Sent: Thursday, February 01, 2018 4:24 AM
To: BITX20@groups.io
Subject: [SPAM] Re: [BITX20] Replacing the PA section on Bitx 40
 
Here is how I made the socket and mounted the RDD16

Note the RDD is reversed and  then the gate is actually soldered to the IRF gate line which goes behind the FET.
Now I can use either of them..

You will need to think of a heat sink plate that fits this way!

Emacs!

Re: Care and Feeding of SMD Parts

Jerry Gaffke
 

Tim said:    I take a piece of printer paper and slit the corners so I can fold it into a tray.

I say:    http://www.origami-fun.com/support-files/origami-box-print.pdf
That way you don't have to dig around the workspace for 30 minutes to find the scotch tape.

When hand stuffing surface mount parts, working within a large baker's cake tin
can somewhat restrain all them flying 0402's and Sot23's.



On Thu, Feb 1, 2018 at 07:21 am, Tim Gorman wrote:
I take a piece of printer paper and slit the corners so I can fold it into a tray.

Re: Software support Request for Full QSK BITX40

Jerry Gaffke
 

I'd think some loss on receive is just fine so long as you hear plenty of atmospheric/galactic/qrn noise when hooked to a decent antenna.


On Thu, Feb 1, 2018 at 05:38 am, Gary O'Neil wrote:
Tale a look at S21 in both transmit and receive. It looks great in Transmit mode, but receive insertion loss looks a wee bit high but not a show stopper.

Re: uBITX schema relay K1 #ubitx

Jerry Gaffke
 

Good idea to make use of K1-16 to disconnect Q90 during receive.
This would also protect Q90 from local QRO transmissions into a local antenna,
The similar Q13 on the Bitx40v3 is often blown in such situations, even when the rig is powered down.

Jerry, KE7ER


On Thu, Feb 1, 2018 at 03:08 am, pe0fko wrote:
On RX (and TX) the LP filter is also a connection to the TX power amp by C80, that will give a (very) small load on the antenna signal at RX and a mixer (Q90 diode BE) for strong received signals?

Need Some Insight On How uBITX Operates In CW Mode

Dennis Zabawa
 

Let me start this by stating that I an not a CW operator.  My interest in CW is to make a complete implementation of all uBITX capabilities in the Raduino clone that I am designing. 

As my design stands at this point, I am implementing most of the logic on an Arduino UNO with a custom made shield.  I am including a 3x4 matrix keypad to allow for direct frequency and other entry along with a rotary encoder with push button.  The keypad and encoder functions will be monitored by a RBBB (Really Bare Bones Board) UNO clone, from Modern Device and communicate with the UNO via the I2C bus.  The display is a 20x4 LCD, I2C bus, display board.  I am using a Kits and Parts, QRP SWR bridge, interfaced to the UNO via an I2C, 8 channel ADC board, to measure forward and reflected power during transmit and tuning.  I will be implementing an AF DSP on a Teensy board with control via an I2C link to the UNO.  The last module will be a keyer implemented on a Pro Micro and communicating with the UNO via an I2C link.

Regarding the CW operating characteristics of the uBITX, does it accomplish T/R switching fast enough for true QSK?  My understanding is that at 20 WPM, the switching needs to occur in 1 millisecond or less.  If the uBITX is not capable of this, I will probably just keep the receiver muted for about 10 milliseconds after a key up and forget about trying to implement QSK operation.

Re: Care and Feeding of SMD Parts

Jack Purdum
 

Good Lord! I can't even SEE 0402's!

Jack, W8TEE



From: Jerry Gaffke via Groups.Io <jgaffke@...>
To: BITX20@groups.io
Sent: Thursday, February 1, 2018 11:05 AM
Subject: Re: [BITX20] Care and Feeding of SMD Parts

Tim said:    I take a piece of printer paper and slit the corners so I can fold it into a tray.

I say:    http://www.origami-fun.com/support-files/origami-box-print.pdf
That way you don't have to dig around the workspace for 30 minutes to find the scotch tape.

When hand stuffing surface mount parts, working within a large baker's cake tin
can somewhat restrain all them flying 0402's and Sot23's.



On Thu, Feb 1, 2018 at 07:21 am, Tim Gorman wrote:
I take a piece of printer paper and slit the corners so I can fold it into a tray.


Re: Need Some Insight On How uBITX Operates In CW Mode

Jerry Gaffke
 

Not good enough for QSK.
And if it was, I would want some much better relays as they are going to be chattering like mad.

If you want fast QSK, you should check out the T/R scheme that Gary is working on:
    https://groups.io/g/BITX20/message/40953

Jerry, KE7ER


On Thu, Feb 1, 2018 at 08:26 am, Dennis Zabawa wrote:
Regarding the CW operating characteristics of the uBITX, does it accomplish T/R switching fast enough for true QSK? 

Re: [SPAM] Re: [BITX20] Replacing the PA section on Bitx 40

Lawrence Galea
 

Standing current in the G6ALU 20W amplifier with two D16HHF1 in push-pull is set to 250 mA each
Regards
Lawrence

On Thu, Feb 1, 2018 at 4:56 PM, M Garza <mgarza896@...> wrote:
From what I read, bias should be between 300 to 500ma.  Can anyone confirm this?
I like your socket idea, Raj.  Very good idea.  Makes experimenting easier.

Marco - KG5PRT 

On Feb 1, 2018 8:09 AM, "Raj vu2zap" <rajendrakumargg@...> wrote:
Transmits fine Bill!

I have not experimented with correct bias setting but I was running more than 100 mils bias..
That board got displaced by the new toy uBitx.. I'll be back to it later later.

At 01/02/2018, you wrote:
Also… have you had it on the air like that yet?
 
 
Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ
 
Owner - Operator
Big Signal Ranch – K9ZC
Staunton, Illinois
 
Owner – Operator
Villa Grand Piton – J68HZ
Soufriere, St. Lucia W.I.
Rent it: www.VillaGrandPiton.com
Like us on Facebook! facebook icon
 
 
email:  bill@...
 
From: BITX20@groups.io [ mailto:BITX20@groups.io] On Behalf Of Raj vu2zap
Sent: Thursday, February 01, 2018 4:24 AM
To: BITX20@groups.io
Subject: [SPAM] Re: [BITX20] Replacing the PA section on Bitx 40
 
Here is how I made the socket and mounted the RDD16

Note the RDD is reversed and  then the gate is actually soldered to the IRF gate line which goes behind the FET.
Now I can use either of them..

You will need to think of a heat sink plate that fits this way!

Emacs!


Re: [SPAM] Re: [BITX20] Replacing the PA section on Bitx 40

M Garza <mgarza896@...>
 

Thanks!
I was looking at this schematic:
It showed different current levels for the bias.

Marco - KG5PRT

On Thu, Feb 1, 2018 at 10:43 AM, Lawrence Galea <9h1avlaw@...> wrote:
Standing current in the G6ALU 20W amplifier with two D16HHF1 in push-pull is set to 250 mA each
Regards
Lawrence

On Thu, Feb 1, 2018 at 4:56 PM, M Garza <mgarza896@...> wrote:
From what I read, bias should be between 300 to 500ma.  Can anyone confirm this?
I like your socket idea, Raj.  Very good idea.  Makes experimenting easier.

Marco - KG5PRT 

On Feb 1, 2018 8:09 AM, "Raj vu2zap" <rajendrakumargg@...> wrote:
Transmits fine Bill!

I have not experimented with correct bias setting but I was running more than 100 mils bias..
That board got displaced by the new toy uBitx.. I'll be back to it later later.

At 01/02/2018, you wrote:
Also… have you had it on the air like that yet?
 
 
Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ
 
Owner - Operator
Big Signal Ranch – K9ZC
Staunton, Illinois
 
Owner – Operator
Villa Grand Piton – J68HZ
Soufriere, St. Lucia W.I.
Rent it: www.VillaGrandPiton.com
Like us on Facebook! facebook icon
 
 
email:  bill@...
 
From: BITX20@groups.io [ mailto:BITX20@groups.io] On Behalf Of Raj vu2zap
Sent: Thursday, February 01, 2018 4:24 AM
To: BITX20@groups.io
Subject: [SPAM] Re: [BITX20] Replacing the PA section on Bitx 40
 
Here is how I made the socket and mounted the RDD16

Note the RDD is reversed and  then the gate is actually soldered to the IRF gate line which goes behind the FET.
Now I can use either of them..

You will need to think of a heat sink plate that fits this way!

Emacs!



Re: Bitx40 USB mod

skreblins00@...
 

Thanks for the answer. The Allard's github page is very helpful.

Re: Crystal matching for ubitx

CoraDias@...
 

Hi...i am a new user here. As per my knowledge It is less important that the signal level than that they be frequency matched as closely as possible. It helps if they exhibit about the same activity, but it is secondary.