Skip to main content

How to use Si5351 #2 - Si5351 Library for WSPR on QRP Transceiver

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.

My plan is as follows.

PLL-A is generated by fixing 850Mhz clock. All output clocks use PLL-A to generate the frequency. This is the method used in QRP radios such as uBITX.


When switching to WSPR transmission mode, PLL-B operates for the base frequency to transmit WSPR. The output clock channel that controls the frequency is connected to the PLL-B. The WSPR protocol is generated by changing the clock of the PLL-B.

Generally, you only use the si5351bx_setfreq function and use Set_WSPR_Frequency when you start WSPR transmission.
When WSPR is being transmitted, the following function is called to control the PLL-B frequency.


When WSPR transmission is completed and return to normal radio mode, use si5351bx_setfreq again.

TEST
The library test was verified with the following source codes
Clock2 uses PLL-A and PLL-B alternately in 100ms increments.



Source code
https://drive.google.com/open?id=1NHrtXkM1uKC08rj-mvzqceOWIlT7Iim9




Test WSPR Protocol with New Library
https://drive.google.com/open?id=1PHa5dY773NqF5WSWAPHEJd22KydD4f6B



Comments

Popular posts from this blog

How to upgrade uBITX Firmware

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.

Download the latest CH340 driver from the Internet.

CAT Support uBITX Firmware CEC Version 1.06 Release (Added WSPR)

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.

I modified it soon and changed uBITX Firmware CEC Version to 1.061.
uBITX Manager also changed Version to 1.01.

-----------------------------------------------------------------------------------

I released version 1.06 which added WSPR function to uBITX.
Beta testers have been very helpful when embedding WSPR functionality. WSPR will continue to improve in the future.

By using WSPR before and after QSO, you can check where your uBITX is spreading all over the world.  If uBITX Manager is used to put WSPR information into uBITX, uBITX no longer needs any external device to transmit WSPR.

The uBITX group's excellent tester also shared a way to use CW Beacon using the Autokey feature (Autokey is a memory keyer built into CEC Firmware.) I will…

CAT Support uBITX Firmware CEC Version 1.01 Release(Changed from v1.0)

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

This version of the concept is an upgrade without hardware modifications. No hardware modifications are required to use this firmware. Continuous release and testing has been done in the uBITX group. I tried to put only the basic functions that an HF transceiver should have. The features have been upgraded with the advice of people who have great ideas in the uBITX group.
It was a project that started to contribute to the original source in github. The project was intended to fix some simple bugs and request merge to the original source. And I was planning to delete the project. At the beginning of the project there was a bit of discussion about this in the uBITX group.
Since then, I've keeping the original source type to allow code share with any user fork…