KD8CEC Amateur Radio

uBITX Firmware CEC Version v1.06 (changed v1.061) I deployed 1.06 and received feedback from WSPR's beta tester, Philip (G7JUR). It was a problem that the LPF was not automatically selected according to band selection during WSPR transmission.

Test and explain for IF-Shift function (or called BFO Shift) of uBITX CEC Firmware The following tests are due to be released soon uBITX Firmware CEC Version 1.06.  Since uBITX Firmware CEC Version 1.0, IF-Shift function is supported.

WSPR function test in 6M, 2M band built in uBITX The picture below is example for the results of transmitting WSPR by uBITX stand alone. Thanks beta testers.

Old Photo#1 - Breadboard circuit As I started my blog, began to run out of Google space. When I have free time, I am deleting the photos from Google Photos little by little. Some of the photos that were automatically uploaded unintentionally have memories.

Beta testing of the stand-alone WSPR feature built into uBITX -> Beta2 Changed to the second Beta version. Version Name : V1.051W Version 1.06 will be released soon. Version 1.05xx should not be used anymore. Just a moment. uBITX Firmware CEC Version 1.06 has been released. Please click the link below. http://www.hamskey.com/2018/03/cat-support-ubitx-firmware-cec-version_24.html

CAT Support uBITX Firmware CEC Version 1.04 Release Version 1.06 will be released soon. Version 1.04 should not be used anymore. Just a moment. uBITX Firmware CEC Version 1.06 has been released. Please click the link below. http://www.hamskey.com/2018/03/cat-support-ubitx-firmware-cec-version_24.html

How to use Si5351 #2 - Si5351 Library for WSPR on QRP Transceiver I introduced two ways to use the Si5351 in the previous post.  and  experimented with two different methods of generating clocks on the Si5351. I want to use both methods together.

How to use Si5351 #1 - Source Analysis Learn how to use the Si5351 for use with QRP radios include uBITX ,WSPR Beacone, Anatenna Anaylyser and many rf tools As I am familiar with the AD9850, I first tried the Si5351 in uBITX. feel that using the Si5351 is suitable for QRP radios.

Reducing CW Key Errors in uBITX uBITX uses ADC to distinguish CW Keys. Unmodified uBITX uses A6 of ADC I / O as CW Key input. The A6 is connected to 5Volt with a 4.7K ohm resistor. The Arduino ADC has a value between 0 and 1023. As shown in the figure above, A6 is connected to 5Volt at 4.7K, so you will get a value of 1023. 1023 / 5 * 5(input) = 1023 If you press the straight key, A6 will have a value close to zero. 1023 / 5 * 0(input) = 0 To use Paddle with uBITX, we need to use 2.2k and 10k resistors. When press the Dot key of Paddle 5 * 2.2 / (4.7 + 2.2) = 1.594 1023 / 5 * 1.594  = 326 When press the Dash key of Paddle 5 * 10 / (4.7 + 10) = 3.4 1023 / 5 * 3.4 = 695 When both Dot and Dash are pressed 5 * 1.8 / (4.7 + 1.8) = 1.3 1023 / 5 * 1.3 = 265 The above values are ideal values. In actual use, errors occur in the measured value due to the error rate of the resistance, the length of the wire, and the resistance of the key con...

Using memory channels in uBITX Storing / recalling frequencies / naming channels in uBITX This function is supported in uBITX Firmware CEC Version 1.0 or later.

RPI Modification for Wsjtx-Portable -Built-in sound card (usb type) -Built-in GPS (usb type) -Added power connector on the side

How to use Wsjtx-Portable (Wsjtx 1.8.1 based Small LCD version) This article is based on Wsjtx-Portable Version 0.5. The video you shot while creating this document are at the bottom of this document.

The portable wsjt-x device in pocket is now named. As the title says, it's simply called Wsjtx-Portable . Wsjtx-Portable is a Wsjt-X program-only device in pocket. I wanted to make it available for use in SOTA, qrp, automobiles and outdoor.

'CAT Support uBITX Firmware CEC Version 1.0 Release' was posted and linux users reqeust for Linux version of uBITX Manager.

CAT Support uBITX Firmware CEC Version 1.01  Release  (Changed from v1.0) uBITX Firmware CEC Version 1.06 has been released. Please click the link below. http://www.hamskey.com/2018/03/cat-support-ubitx-firmware-cec-version_24.html

The following link explains why created WSJTX-Portable. http://www.hamskey.com/2018/01/find-and-fix-bugs-in-non-debug.html

I'm posting this experience to help new programmers. This article shows how to solve problems for new programmers. I do not think my method is the best. I think that it is one of various ways to solve an issue. A program called WSJ-X started to become popular. It was a great program. even the program is open source based.

Use CEC version firmware 0.25 or later of uBITX. The following examples are based on version 0.27. We will post the 0.27 version as the test ends. All of the examples below only describe connections to uBITX. Please refer to the manual or other documents for how to use the program. uBITX Firmware 0.27 :  http://www.hamskey.com/2018/01/release-version-027-of-cat-support.html

Use CEC version firmware 0.25 or later of uBITX. The following examples are based on version 0.27. All of the examples below only describe connections to uBITX. Please refer to the manual or other documents for how to use the program. uBITX Firmware 0.27 :  http://www.hamskey.com/2018/01/release-version-027-of-cat-support.html

CAT support uBITX firmware Import Note uBITX Firmware CEC Version 1.06 has been released. Please click the link below. http://www.hamskey.com/2018/03/cat-support-ubitx-firmware-cec-version_24.html

Use CEC version firmware 2.5 or later of uBITX. The following examples are based on version 0.27. We will post the 0.27 version as the test ends. All of the examples below only describe connections to uBITX. Please refer to the manual or other documents for how to use the program.

Use CEC version firmware 2.5 or later of uBITX. The following examples are based on version 0.27. We will post the 0.27 version as the test ends. All of the examples below only describe connections to uBITX. Please refer to the manual or other documents for how to use the program.

This posting is for uBITX's new firmware (CEC Version 0.25 or later) users. Those who use uBITX are mostly those who are skilled in radio. They can skip the begin of this document and see only the added features. This article is based on the person who first worked with uBITX.

CAT support uBITX firmware Import Note A new version has been released v1.0 . Please use the link below to download the firmware. http://www.hamskey.com/2018/02/cat-support-ubitx-firmware-cec-version.html

This is a guide for uBITX's original firmware (or source code) users to use uBITX memory manager. Unfortunately, the original source can not be used as it is.

This post was written at the beginning of implementation. I've re-published your usage in more detail. Detailed firmware upgrade method and how to use uBITX Manager are posted on the link below. For those who do not have a arduino compile environment, I have compiled the original source code with only the above code. Please click the link below. http://www.hamskey.com/2018/01/how-to-use-ubitx-manager-for-original.html

WSPR WSPR is short for "Weak Signal Propagation Reporter". For more information on wspr see the links below https://en.wikipedia.org/wiki/WSPR_(amateur_radio_software) https://physics.princeton.edu/pulsar/k1jt/wspr.html http://wsprnet.org/drupal/

Already this issue is known to Arduino users. and There are also various solutions to this. If you are an Arduino or BITX (uBITX) user, you've already experienced it and have solved the problem. This article is for those who are new to Arduino like me. I spent a lot of time thinking that this problem from my firmware. In other words, I am an old firmware developer, but I first tried it (arduino).

uBITX is based on Arduino Nano. So uBITX's firmware upgrade method is the same as Arduino. There are two ways to upgrade the firmware of uBITX. The first is to compile the source from the Arduino IDE, and the second is to upload the compiled hex file using the Firmware Upgrade Tool. I'll show you how to upload a compiled hex file as a second method. 1.Connect the uBITX's USB cable to the computer. 2.Run Device Manager on your computer.   The way to open the Device Manager for each OS Version differs slightly.   In most Windows, you can easily launch the Device Manager by running.   On your computer, press the Windows key + R.    Type devmgmt.msc and press OK Button. On most operating systems, there will be a serial port named Ports with CH340. If so, the next step is skipped. If the serial port is not installed as below, you need to install the driver. Included in uBITX is the Adonano, which uses the CH340 USB To UART part....

I am an embedded programmer, but I first tried arduino. Arduino knew only that it was used for learning purposes. However, it is based on C and it seems to have considerable applicability. In particular, a concise structure makes it easy to write code. I found some error, but easy fixed because of very small bug. 1.CW Side Tone Configuration - Error   https://www.youtube.com/edit?o=U&video_id=1EPPknBQNLY  There is no response when PTT is pressed after CW side tone is set. but this is very simple problem, i fixed code and send information to administrator of uBITX source code before fixed code while ( digitalRead (PTT) == LOW || ! btnDown ()) { knob = enc_read (); if (knob > 0 && sideTone < 2000 ) sideTone += 10 ; else if (knob < 0 && sideTone > 100 ) sideTone -= 10 ; else continue ; // don't update the frequency or the display ton...