10 GHz LNB with PLL, TCXO and bias tee board
Simply modification of the satellite Low Noise Block - LNB with PLL and 25 MHz X-tal. There is nice 10 GHz Receiver down converter for tropo and satellite with 1 ppm TCXO. You only need some receiver at IF frequency - SDR or classic. Very good frequency stability with built-in TCXO. You can choose between three different version with different IF output frequencies.
Main functions:
- Ku band Low Noise Block - LNB
- Very low noise block - down converter
- 1 ppm temperature stability TCXO built-in
- Input of LNB is designed for 10 to 12,5 GHz
- Vertical and Horizontal polarisation
- Voltage supply +12V for V-pol, +15V for H-pol
- Bias Tee board
- Low Insert loss
- Supply voltage and IF over one coax
- Variable ATTENUATOR in the bias tee
- High voltage / current protection
- RF signal protection limiter - max. signal 20 mW (ver.0.4 and higher)
- Voltage supply +12V for V-pol, +15V for H-pol
- Bias tee connectors: IN (LNB) = F, OUT = SMA and F (F at ver. < 1.x)
- Option: RTL-SDR receiver with 1ppm TCXO
- RTL-SDR USB receiver
- In the metal enclosure
- With 1 ppm TCXO for better stability
- Input SMA connector
- SMA - SMA cable included (17 cm)
- Firmware already installed
- 8 bit, up to 2 MHz of spectrum
- compatible with: HDSDR, SDR console etc.
- Option: 3D printed POTY dual band antenna adapter
- UV stable PETG material
- 22 mm Cu tube diameter
- POTY pipe WG fixed by M4 screw
- ONLY ADAPTER, not 2.4 GHz antenna!
- Frequently Asked Questions FAQ
Technical parameters:
LNB local oscillator : 9750 MHz LNB local oscillator - 10489-432 model: 10057 MHz LNB local oscillator - 10368-432 model: 9936 MHz Conversion gain of a LNB: > 50 dB LNB IF - SDR model: 739 MHz for 10 489 MHz (QO-100), 618 MHz for 10 368 MHz (TROPO/EME) LNB IF - 10489-432 model: 432 MHz (10489 MHz RF IN) LNB IF - 10368-432 model: 432 MHz (10368 MHz RF IN) Stability with TCXO (0,1 ppm): 0,1 ppm (X 390) Frequency error with TCXO: 0 to abt 30 kHz DC voltage: +12 V for Vertical polarisation - NB and +15 V for Horizontal - WB DC current: typ. 180 mA Bias Tee IF loss: typ. less than 2.5 dB (ATT set to 0) Variable Attenuator on IF: 1 dB to NO signal
LNB models / variants:
- Different 10 GHz and IF FQ
- Tropo / EME / QO-100
Set Includes:
- Ku band LNB with TCXO
- Bias Tee PCB - assembled
- Option: RTL-SDR + SMA cable
- Option: 3D printed (PETG material) POTY antenna adapter (22mm)
- POTY - ONLY ADAPTER, not 2.4 GHz antenna!
Bias tee block diagram
NEW VERSION WITH EXTERNAL REFERENCE
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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.
Web page link
OpenWEB RX at OL7M for TROPO 10368 MHz:
Download
| 10 GHz LNB with TCXO and Bias Tee | ||||
|---|---|---|---|---|
| rev 0.2 | sch  |
pcb  |
Files304 | |
| rev 0.4 | sch  |
pcb  |
Files304 | |
| POTY adapter STL file | ||||
| rev 0.1 11-2019 | picture  |
Files400 | ||
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We believe open source is a better way of doing things. View and download the Shield Schematic and PCB Kicad/Eagle CAD files, LibreCAD .DXF, or Inkscape .SVG files. The hardware designs are released under the Attribution-NonCommercial 2.0 Generic |
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3D printed enclosure for bias tee board by Bela HA4BM (TNX):
Users photos
 by EA4FFO |
 by EA4FFO |
 by EA4FFO |
 by EA4FFO |
 by Didier ON6YF |
 by Didier ON6YF |
 by Roy G4WTV |
