VK6ROX B

Homebrew DStar Repeater

Photo Gallery

Diamond Triband 23cm-70cm-2m Colinear Antenna up about 10mAntenna

T800 Homebrew DSTAR Repeater

T800 Homebrew DSTAR Repeater

Close Up of the Converted T800 repeater - NOTE THE HARDWARE, ANALOG MUTE IS ALWAYS OPEN

Close Up of Converted T800

DUPLEXER, Receiver Bandpass Cavity and Preamp Interconnections

Duplexer and Cavity Interconnections

Triplexer splitter so I can do other things on 2m & 23cm

Triplexer

 

Cheap $100 70cm Diplexer from China

Cheap Diplexer

 

HISTORY - THE FIRST VERSION USED A PAIR OF T2020 MOBILE RIGS. Side View of the Homebrew DStar Repeater

Repeater Side View

LDF4-50
LDF4-50 low loss feedline

Cavity BPF beween Diplexer and LNA RX preamp
Cavity BPF on RX

RX LNA
Low Noise figure Preamp between the Cavity BPF and the Receiver

Repeater Front View
HISTORY - THE FIRST VERSION USED A PAIR OF T2020 MOBILE RIGS. Front View of the Homebrew DStar Repeater Assembly - the 100W PA heatsink is visible above the laptop controller Transmitter Exciter
HISTORY - THE FIRST VERSION USED A PAIR OF T2020 MOBILE RIGS. Tait T2020 used as the transmitter (exciter) - the final transistor was removed and replaced with stripline for 1.5W PA drive