The cheap Chinese copies of the Kenwood TCXO boards are rubbish, I bought and installed a superb TCXO from Mark Goldberg, W7MLG. The results are fantastic, my TS-590SG is now spot on
HF / All Mode • TS-590SG Features • Kenwood Comms
KENWOOD TS-590SG. HF / 50 MHz transceiver
News Release
I upgraded my Kenwood TS-590SG with TCXO and Military Look - YouTube
SECOND HAND KENWOOD TS-590SG HF TRANSCEIVER | Facebook
Kenwood TS-590SG | WiMo
HF / All Mode • TS-590SG Features • Kenwood Comms
Kenwood TS-590SG
TS-590SG ISSUES – The G3NRW TS-590 Family Resources Page
Introduces the Limited Anniversary Edition TS-590SG - 26 Января 2018 - Kenwood TS-590
Reports of Kenwood TS-590SG Fans Installed Backwards : r/amateurradio
Kenwood TS-590SG
Kenwood TS590SG - YouTube
KARA
Ham Radio Live! #HRL #1stRig 169 Entry Level Ham Radios. The Kenwood TS 590SG Review. A Quick Look! - YouTube
RigPix Database - Kenwood/Trio - TS-590SG
Kenwood TS-590SG – Jahnke Electronics
Front/Rear Panel | TS-590SG | Amateur Radio | Communications | KENWOOD USA