VHF-UHF - LNB 10GHz external reference

This revision is from 2020/08/15 20:13. You can Restore it.

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This is the 10 GHz Low Noise Block (LNB) modified for external 25 MHz reference for internal PLL. This signal is feeded by the same one coaxial cable as IF down. Special small Bias Tee box with TCXO or 10 MHz reference signal works as DC injector and also 25 MHz Source for LNB. There is also variable attenuator for IF signal which allows you to change IF signal from 0 to maximum. You can still switch between V and H polarisation by supply voltage.

Bias tee LNB BOX

  • Small universal PCB
  • Allows you to supply LNB over the coax.
  • Allows voltage to 25V
  • You can switch H and V polarisation
  • Protections DC and RF !
  • Variable Attenuator !

2-way splitter

POTY dual band antenna adapter

  • PETG UV stable material
  • 22 mm Cu pipe size

  • Use tape to waterproof it.