PASSION RADIO LNB PLL TCXO 10GHz LNB with EXT OSC Instruction Manual

PASSION RADIO LNB PLL TCXO 10GHz LNB with EXT OSC

Product Information

Specifications

• LNB Local Oscillator: 9750 MHz (with 25 MHz source)
• Conversion Gain of LNB: > 50 dB @ 700 MHz
• LNB IF:
  • 739 MHz for 10489 MHz (QO-100)
  • 618 MHz for 10368 MHz
• Reference 10 MHz Input Power: -3 dBm to +13 dBm
• Stability with 10 MHz Reference: Depends on the reference source
• Stability with 25 MHz TCXO (0.2 ppm): 0.2 ppm (X 390)
• 25 MHz Cut Off to RX Output Port: > 50 dB
• Frequency Error with TCXO: Max 3 kHz, typ. less than 1 kHz (after 5 minutes)
• DC Power:
  • +12 V for Vertical Polarisation (NB)
  • +18 V for Horizontal Polarisation (WB)
• Bias Tee IF Loss: Typ. less than 3.5 dB to 2 GHz

Product Usage Instructions

Bias Tee Box Configuration
The Bias Tee Box serves as a DC Bias Tee, providing a 25 MHz source for the LNB, variable attenuation, and protection. Follow these steps to configure the Bias Tee Box:

1. Ensure the signal source is set to external 10 MHz, which is the default preset configuration.
2. If you prefer to use a TCXO, open the box and reconfigure the jumpers accordingly.
3. The blue trimmer on the box works as a variable attenuator for adjusting the power supply.

Bias Tee LNB Box Features

• The small box provides DC voltage and a 25 MHz reference for the PLL of the LNB over one coaxial cable.
• You can select between using an internal TCXO with 0.2 ppm or a 10 MHz reference signal by adjusting jumper JP1.
• The box allows you to switch between H and V polarizations, provides DC and RF protections, and features a variable attenuator controlled by the blue trimmer.
• A DC plug is included for the power connection.

Poty Dual Band Antenna Adapter
In case you opt for the Poty dual-band antenna adapter:

• Made of PETG UV stable material
• Fits a 22 mm Cu pipe size (use tape to waterproof it)
• The adapter for POTY pipe WG is fixed by an M4 screw, note that only the adapter is included, the 2.4 GHz antenna is not part of this package.

FAQ

• Can I use an internal TCXO with this product?
  Yes, you can use the internal TCXO with a frequency stability of 0.2 ppm. Make sure to adjust the jumpers accordingly.

• What is the recommended power supply for this product?
  The product requires a +12 V power supply for Vertical polarization (NB) and +18 V for Horizontal polarization (WB).

This is a new version (MK3) of the Low Noise Block (LNB) with external reference and Bias Tee box with better-filtered reference frequency using X-tal filters. Crystal filters are in both the Bias Tee box and the LNB. The result is better phase noise and output (IF) signal quality even when using a worse external reference signal source of 10MHz. In addition to the Crystal filters, the new Bias Tee box includes a new diplexer to separate the IF and reference (25MHz) frequencies on a single coaxial cable along with a DC power supply for the LNB. The box also includes surge protectors, a current Super- Fuse, a new electronic DC fuse, LED indication of switching from V to H polarization and a continuously adjustable variable Attenuator.

Applications

• special SAT experiments
• Starlink experiments
• University Ku band projects
• Coherent receivers
• QO-100 Es’Hail satellite
• TROPO 10GHz
• EME 10GHz
• SatTV DXing

Block diagram of the Bias Tee box

Signal source external 10 MHz

This is default preset configuration – if you like to use TCXO, please open the box and reconfigure jumpers

Trimmer works as a variable attenuator

Power supply cable

Bias Tee LNB BOX

• small box works as DC Bias Tee, 25 MHz source for LNB, variable ATT and protections
• allows you to supply DC voltage and 25 MHz reference for PLL of LNB over one coax
• you can use internal TCXO with 0.2 ppm or some 10 MHz reference signal (you can select signal by the jumper JP1)
• you can switch H and V polarization
• DC and RF protections!
• Variable attenuator! (blue trimmer works as variable attenuator)
• DC plug included

Poty dual band antenna adapter (in option)

• PETG UV stable material
• 22 mm Cu pipe size (use tape to waterproof it)
• POTY pipe WG fixed by M4 screw
• ONLY ADAPTER, 2.4 GHz antenna NOT included

Technical Parameters

• LNB local oscillator 9750 MHz (with 25 MHz source)
• Conversion gain of LNB > 50 dB @ 700 MHz
• LNB IF 739 MHz for 10489 MHz (QO-100) 618 MHz for 10368 MHz
• Reference 10 MHz input power -3 dBm to +13 dBm
• Stability with a 10 MHz reference depends on the reference source
• Stability with 25 MHz TCXO (0.2 ppm) 0.2 ppm (X 390) 25 MHz cut off to RX output port > 50 dB
• Frequency error with TCXO max 3 kHz, typ. less than 1 kHz (after 5 minutes)
• DC power +12 V for Vertical polarisation (NB) +18 V for Horizontal (WB)
• Bias Tee IF loss typ. less than 3.5 dB to 2 GHz
• Variable Attenuator on IF 0 dB to NO signal

IMPORTANT NOTE:

• This Bias Tee box is designed for a 10 MHz external reference source but you can also use internal 25 MHz TCXO, which is 0.2 ppm. The frequency error is max. 3 kHz.
• Do NOT forget that the quality of the 10 MHz signal source has got final effect on the quality of the output signal. With added phase noise by PLL multiplying.

Internal duplexer (MK3) from LNB to RX

Difference of IF signal

Difference of IF signal: older and MK3 version

Options: Recommendations to buy

GPSDO PLL

• 10 MHz reference source locked to GPS signal
• RF output typ +5 dBm
• HW by BG7TBL, modification by OK2ZAW
• including GPS antenna and DC power cable
• 3.5 mm jack with GPS data out
• including coax cable with BNC and SMA (about 50 cm)
• please be patient, GPS lock could take a long time at first time, also depends on the GPS satellite count etc.

2-way small splitter

• small splitter for a 10 MHz reference signal
• splits 10 MHz signal to Bias Tee box and another device (SDR, TRX etc.)
• low loss 3.5 dB

RTL-SDR receiver with 1ppm TCXO

• RTL-SDR USB receiver
• in metal box
• 1 ppm TCXO for better stability
• input SMA connector
• firmware already installed
• 8-bit, up to 2 MHz of spectrum
• compatible with HDSDR, SDR console etc.

Adalm Pluto

• SDR TRX up to 6 GHz

SMA-SMA cable

• SMA male & SMA male pigtail
• about 15 cm (total length 17 cm)

2-way splitter box with 10 MHz GPSDO

Included in package

• LNB and Bias Tee assembled and tested
• POTY adapter (version with POTY)
• DC plug – image
• 4pcs self-adhesive feet pads – image

References

• napajeci_kabel

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