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Posted by: Johan Maas - 22/02/19 @ 11:02AM

Radioberry in a case

Presenting/sharing this nice radio little amateur HF radio.

radioberry built into case



Thanks to Steli, AE6OR for sharing his implementation. 
Have fun
73 Johan
Posted by: Johan Maas - 02/10/18 @ 6:24PM

Radioberry Release

Just to inform users of the radioberry.

The latest release for the radioberry is available.

Hereby the link to the release .

Have fun using this nice radio.

73 Johan 


Posted by: Johan Maas - 15/09/18 @ 12:41PM

VSWR - Monitor

In the famous dutch QRP nieuwsbrief (NB 62) i found the article: "SWR METER ZONDER AFREGELING" door PAoWDW

Also in the openhpsdr ALEX project they are using the same bridge.

I added a i2c adc component and did make a PCB for it.


Picture shows the result:


I did interface this with my emulator so iam able to see the power when using the pihpsdr software:



As you can see the power using a PA is set to 60 Watt... and using a dummy load during the test indicates a nice SWR!

For more information and all the details see the repo at github!

Also created a release for the radioberry project including the reading of the power!


73 Johan



Posted by: Johan Maas - 05/06/18 @ 7:06PM

Iam getting a lot of questions from radio amateurs about the radioberry.

Maybe a good place to share questions or hints is a google discussion forum.



Looking forward how this will workout.

73 Johan 



I was already using quisk, running at a seperate computer using the hermes emulator.

Still wanted to use Quisk (quisk) running als at the rpi.


Did an install and the normal configuration, setting to small screen.


Starting quisk resulting in the followin screen:


Maybe another reason to look to the radioberry... hi!


Hope you like it?


73 Johan PA3GSB


Posted by: Johan Maas - 18/02/18 @ 4:54PM

 Radioberry V2.0 beta 2

The Intel Cyclone 10 FPGA chips finally arrived.

During the backorder time of the FPGA i decided to order 10 Radioberry V2.0 beta 2 

cards @Makerfabs.

They created the PCB and did the PCBAssembly; looking real great!

Only the assembly of the Cyclone 10 FPGA must be done.

The picture below shows the Radioberry hat plugged in at a raspberry pi:



Some characteristics of the radioberry:


I did check the working using the cyclone 10CL016 and 10CL025.


Hereby the build report for the 10CL016 FPGA.

The FPGA contains 2 radio slices and the transmitter logic.

I do have no boards more available with the 10CL016 FPGA. Please send me an email: pa3gsb at gmail dot com if you are interested. I do need some time to assemble and check the board.

73 Johan PA3GSB


Posted by: Johan Maas - 05/12/17 @ 7:37PM

Radioberry pihpsdr cw-setup

The following picture shows how all the components are working together to make cw work for the combination of radioberry and the pihpsdr software.


Hardware Setup

The dot and dash is connected to the J2 of the radioberry.

The fpga lines IO-15 and IO-16 are used to get the key commands to the firmware.

The dot and dash events are also directly routed to the gpio pins, 18 and 19 (fysical pins 12 and 35).

If keying the cw-ptt port is set (gpio pin 19, fysical pin 11). which enables the ptt (if cw-break in is checked in the cw setup menu), otherwise you have to switch to tx using the mox button.

Use of the gpio port can be found at:




Software setup


When starting pihpsdr set the gpio ports. I unchecked all ports and added filled in the ports used for CWL and CWR  




After loading the radioberry.rbf firmware containing the latest firmware. It is possible to switch the radioberry into the cw mode.



I built a capacitive touch key. I found the following excellent design. 


I assembled the components on a pcb. Had fun making this simple project! Placing some pull-ups; attaching a voltage meter and touching the key input worked directly.

Made the wiring to the radioberry, changed the source code of the pihpsdr and did the setup. Working like a charm.


Happy keying.  

Johan PA3GSB


Posted by: Johan Maas - 12/09/17 @ 5:21PM

Use the radioberry as a standalone multichannel (4) WSPR receiver.

The WSPRBerry implements the following:

-) recording max 4 WPSR channels 

-) using FPGA firmware, implements a DDC to produce 375 samples per second

-) writing the samples per band to a .c2 files to process by the WSPR decoder

-) upload the decoded to wsprnet

The advantage of the .c2 file format is that it’s about 1/8 the size of a .wav file. 

Using 4 channels and 375 samples per sec results in a bit stream of:

4 channels * 375 samples/sec * 6 bytes (IQ-data)  * 8 = 144000 bits/sec.

Using a SPI speed of 244 Khz to get the data from the FPGA firmware to the raspberry pi is sufficient.

Important is that the timing is in sync, you can check your rpi timing at the following site:  https://time.is/


Modify the CALL and the GRID locator.

Modify the crontab:

crontab -e

1-59/2 * * * * /home/pi/radio/wsprberry/decode.sh

This will start at odd minutes the decode process.

After the updated cron tab the cron service must be restarted:

sudo service cron restart

Load the firmware and start the wsprberry program.


rpi running wspr mode


Look at the wsprnet.org for logged stations:



For more information about the radioberry and escpecially the wsprberry look at github

Happy decoding!


73 Johan PA3GSB

Posted by: Johan Maas - 09/04/17 @ 12:22PM

Radioberry succesfully built 


Leo, JI1DLZ did assembly his radioberry radio.

Hereby some nice pictures.

JI1LDZ Radioberry


He also likes to work with Power SDR, by using the emulator on the Raspberry pi it is easy to connect with the radioberry.

PowerSDR running together with emulator at Radioberry


 An other way of using the Radioberry is to connet to the piHPSDR software... Leo was also make this work.




Leo congrat with the fine result and happy you where able to achieve this with almost no help from my site; great work, hope you have great time in using this small radio!


73 Johan PA3GSB

 Radioberry meets pihpsdr 


John Melton (G0ORX)  is the inventor of the pihpsdr software. The software is running on a raspberrypi-3 and supports 2 receivers and a contains a transmit mode.

I forked the software of John at Github and added code for the radioberry; the code is now merged in the main branch of the pihpsdr software. In the Makefile it is possile to uncomment the radioberry... after a clean install the radioberry can be discovered; see the picture below:



After starting the radio pihpsdr presents 2 receivers. More info about working with pihpsdr can be found at github; https://github.com/g0orx/pihpsdr




The combination of the radioberry card, raspberrypi-3 and the excellent software pihpsdr results in a nice standalone radio covering all the HF bands.


73 Johan PA3GSB

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