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DB4020 Firmware V2.2 February 22, 2022
Updated DB4020 V2.2 firmware. Last version.
- DB4020 can operate on USB in the 40m band.
- Display shows USB, LSB or CW mode of operation.
- Increases CLK1 level in TX 20m
- XTAL CALIBRATE function extended.
You need an ICSP programmer for ATMEGA328P (see fuses doc).
See the STK500 programmer at the end of the page.
DB4020_V2.2.hex
Text Document 83.3 KB
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EGV+ V2 Firmware V1.1 February 22, 2022
Updated firmware V 1.1 version for EGV+ 40-30-20m CW transceiver (ATMEGA328P processor).
- Modified offset to 700Hz.
- Modified oscillator levels.
- XTAL CALIBRATE function extended.
You need an ICSP programmer for ATMEGA328P (see fuses doc).
See the STK500 programmer below.
EGV_V1.1.hex
Text Document 83.0 KB
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ATMEGA328P ISP programming fuses doc.
ATMEGA328 fuses.pdf
Adobe Acrobat Document 264.1 KB

ATMEGA328P microcontroller chip programmed for DB4020 V2.2 transceiver or EGV+ V1.1 transceiver

Available only to DB4020 or EGV+ owners 

See the STK500 programmer at the end of the page.

DB4020 V2.2 price: 6,00€

EGV+V1.1 price: 6,00€

6,00 €

  • 0,05 kg
  • Available
  • Ships within 3-5 days

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KB2 keyer firmware. (DB4020 CW Interface or EGV+ transceivers)
KB2 firmware for PIC12F1840.
kb2_keyer.hex
Text Document 19.0 KB

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Arduino basic open source sketch for ARDU-5351 VFO
It is a basic open source sketch from which you can develop your own program for the ARDU-5351 VFO. You must have sufficient knowledge. Technical advice is not offered for this.
ARDU-5351OS Arduino Sketch english.zip
Compressed Archive in ZIP Format 8.4 MB
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Arduino sketch básico de código abierto para ARDU-5351 VFO
Es un sketch básico a partir del cual usted puede desarrollar su propio programa para el ARDU-5351 VFO. Usted debe tener conocimientos suficientes. No se ofrece asesoría técnica para este.
ARDU-5353OS Arduino Sketch spanish.zip
Compressed Archive in ZIP Format 8.4 MB