Inside my workshop

Repeater controller card 2m - 70cm

Range from Halmstad
2 m (144-146 MHz)

Range from Halmstad
70 cm (432-436 MHz)

Autumn 2015 we started with construction of the repeater controller card.  SM6JWU (Uwe) made the hardware and SM6RHA (Thomas) made the firmware.

The repeater is located 25km northwest of Halmstad, the mast is 260 meters high over sealevel with radiation southeast.

Repeater frequency VHF 145.675 -600Hz shift CTCSS 114.8
UHF 434.925 -2MHz Shift CTCSS 114.8
D-Star UHF 434,925 Duplex -2MHz Shift CTCSS 114.8Hz

If you are intrested you can buy the schematic and PCB from me.

Year 2017 we built a digitalclock GPS control from scratch. SM6JWU (Uwe) made the hardware and SM6RHA (Thomas) the firmware. 

If you are intrested you can buy the schematic and PCB from me.

Schema

PCB

World Clock

In 2016, Thomas (SM6RHA) and Uwe (SM6JWU) made a world clock with nine different times. We took a GPS module and decoded it with a picprocessor.

If you are intrested you can buy the schematic and PCB from me.

MMDVM Duplex hotspot

The chassis was made in a 3d printer. Flashforge Adventure 3

Automatic - Antenna - Tuner 2000

In 2019 I SM6JWU and SM6RHA started building an automatic antenna tuner from scratch. SM6RHA programmed the Arduino Nano, display programming in Nextion. SM6JWU and SM6RHA worked on the tuner for both of us.