LNBs-PLL – Commercial

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Phase locked Loop (PLL) Commercial LNB–Wikipedia
First of all to even qualify to be called a PLL (Phased Lock Looped) LNB–Wikipedia it must have a Stability factor of +plus or -minus 100Khz (+-100Khz ) or  lower. It’s not only the degrees kelvin (Noise Temp. 15k,20k ect..) Where the known rule is the lower the degree noise k temp the better. PLL LNBs have a noise temp factor of 20k or 25k but they still blow the crap out of any inexpensive backyard 17k or 15k LNB. It is because a backyard 15k LNB has a stability factor of +-1000Khz. So try not to pay much attention to the lower the noise “K” temp the better. It’s good and sometimes true but also more important is the LNB’s stability factor. +-Khz. The lower the stability factor the better and probably the more expensive. The LO (Local Oscillator) stability-Wikipedia LNB: (Low Noise Block Down converter) An LNA and block down converter enclosed in a single housing. The output of an LNB is an IF signal at L-Band [nominally 950 to 1450 MHz].
Low Noise Block (LNBs) LNB–Wikipedia External Reference – Wideband – Extended – LNA–Wikipedia 

 
Norsat LNB PLL
Norsat
Norsat Phase locked Loop (PLL) Commercial LNBs. Norsat offers a wide range of BUCs, SSPAs, LNBs, LNAs, BDCs, and microwave components that can be customized to meet your specific requirements. Down converter: A device that takes a block of frequency and converts it to a lower frequency. The lower the noise temperature, the better the performance. DRO: (Dielectric Resonator or Dielectrically Stabilized Oscillator) Highly stable oscillator circuit employed by LNBs. Ku-Band Ka-Band C-Band and X-Band-Wikipedia

C-Band LNB–Wikipedia
 

C-Band External Reference and Extended LNB

The benefit of using an external reference PLL LNB is that the indoor reference oscillator is easier to maintain at a stable constant temperature. Some LNBs operate at such high frequency that they can need phase look loop frequency control. An internal PLL uses a crystal oscillator in the LNB. An external reference PLL uses a 10 MHz reference supply from the customer’s indoor modem or receiver.
C-Band LNB–Wikipedia
 
Ku-Band LNB–Wikipedia
L.O. Frequency (Local Oscillator Frequency) The frequency setting of the oscillator used in the LNB that is used as the bases for the down conversion to the L-Band output frequency. The Local oscillator frequency is added or subtracted from the input frequency to obtain the output frequency.
 

Ku-Band External Reference and Extended LNB–Wikipedia

The Norsat 1000XH Series Ku-Band Compact Ext Reference PLL LNB provides the best system BER performance and is used in applications requiring very fast data acquisition time or very low data rates. External Reference and Extended Phase locked Loop (PLL) Commercial  LNB Available in custom configurations.

Ku-Band LNB–Wikipedia
 
Ka-Band LNB–Wikipedia
The Ka band (“kay-ay band”) covers the radio frequencies of 26.5–40 GHz, i.e. wavelengths from slightly over one centimeter down to 7.5 millimeters. The Ka band is part of the K band of the microwave band of the electromagnetic spectrum. This symbol refers to “K-above”: in other words, the band directly above the K-band. The 30/20 GHz band is used in communications satellites, uplink in either the 27.5 GHz and 31 GHz bands, and high-resolution, close-range targeting radars aboard military airplanes.
 
X-Band  LNB–Wikipedia
The X band is a segment of the microwave radio region of the electromagnetic spectrum. In some cases, such as in communication engineering, the frequency range of the X band is rather indefinitely set at approximately 7.0 to 11.2 GHz. In radar engineering, the frequency range is specified by the IEEE at 8.0 to 12.0 GHz.
 
Swedish Microwave
Professional LNBs, LNAs, BDCs, TLTs and RF over Fiber products for demanding applications in VSAT. Typical applications and solutions include VSAT, SNG, Cable-TV head ends, Marine VSAT, HTS, SOTM, Teleports, Earth Observation / Remote Sensing and more. Our C-Bands LNBs have integrated filters to minimize unwanted signals such as WiMAX and 5G. Available as single band or 2-band switchable, full C-band covering LNBs and BDCs.

C-Band LNB–Wikipedia
 
Ku-Band LNB–Wikipedia
L.O. Frequency (Local Oscillator Frequency) The frequency setting of the oscillator used in the LNB that is used as the bases for the down conversion to the L-Band output frequency. The Local oscillator frequency is added or subtracted from the input frequency to obtain the output frequency.
 
Ka-Band LNB–Wikipedia
Professional Ka-Band satellite Low Noise Block Down converters and LNA products. Full KA-band frequency covering Quad LNA-BDC systems are unique SMW product enabling simultaneous reception of the entire Ka-band with four normal L-band outputs. Also available are single- and 2- band switchable LNBs and BDCs, including models with O3b approval. All single units are rigorous tested for long lasting performance. Very low phase noise. Options include customized LO, customized gain, separate DC power input and separate input for the external 10 MHz reference. Our products cover KA band frequency 17.30-22.30 GHz. Other frequency bands–Wikipedia
X-Band  LNB–Wikipedia
X-Band products for Professional satellite communications. State of the art X-band offering includes LNB and BDC models in compact housings for both normal receive frequencies and transmit monitoring. The products cover 7.25-8,40 GHz. All our units are individually hand tuned for the very best performance available. Outstanding performance includes very low phase noise and very high stability over temperature and time. Special models for Earth Observation are available. Other frequency bandss- Wikipedia Approximately 7.0 to 11.2 GHz. In radar engineering.

X-Band  LNB
 
Teledyne Paradise Datacom - Redundant LNB Systems
Teledyne Paradise Datacom–Wikipedia
WR-75 Flange / wave guide “F” type “N” Type C-120, WR-42, WR-62, WR-75, WR-112 Standard Ku LNB LNBF Liner Polarity Ku-Band 11.7 -12.2 GHz Output = 950-1450 MHz Universal Ku LNB = Liner Polarity Ku-Band Low = 9.75 GHz / norm= 10.7 – 11.70 GHz  High = 10.6 / norm = 11.7 – 12.75 GHz  10.7 – 12.75 GHz. Output = 950-1950 MHz 1100-2150 MHz  Ku-Band Variants and other LNBs / LNBFs  ODDBALL wideband output ranges. Output = 950 – 1700 MHz & Misc. BROADBAND.
LNB Redundant LNB Systems
 
New Japan Radio
New Japan Radio
The abbreviation LNB stands for Low Noise Block. It is the device on the front of a satellite dish that receives the very low level microwave signal from the satellite, amplifies it, changes the signals to a lower frequency band and sends them down the cable to the indoor receiver.

 

C-Band LNB–Wikipedia
 

C-Band External Reference and Extended LNB

External reference: The signal that is supplied to an LNB via the center conductor of the IF cable. The reference frequency is normally 10 MHz and is used to accurately phase lock the conversion oscillator in the LNB to the wanted frequency.
 

Ku-Band LNB–Wikipedia
The expression low noise refers the the quality of the first stage input amplifier transistor. The quality is measured in units called Noise Temperature, Noise Figure or Noise Factor. Both Noise Figure and Noise Factor may be converted into Noise Temperature. The lower the Noise Temperature the better. So an LNB with Noise Temperature = 100K is twice as good as one with 200K. C band LNBs tend have the lowest noise temperature performance while Ka LNBs have the highest (worst).

 

Ku-Band External Reference and Extended LNB

The benefit of using an external reference PLL LNB is that the indoor reference oscillator is easier to maintain at a stable constant temperature. Some LNBs operate at such high frequency that they can need phase look loop frequency control. An internal PLL uses a crystal oscillator in the LNB. An external reference PLL uses a 10 MHz reference supply from the customer’s indoor modem or receiver.

Ku-Band LNB–Wikipedia
 
Ka-Band LNB–Wikipedia   
VSWR: (Voltage Standing Wave Ratio) Can best be described as waves coming into the L.O. Frequency shore from the ocean. Desirable VSWR waves come in smoothly and the energy used in the LNB that is used as the bases for the down conversion to the L-Band is dissipated into the sand. This desirable VSWR is called “primary incident” and results in a low VSWR. L.O. Stability: (Local Oscillator Frequency Stability) The variance in the frequency of the Local oscillator with time, temperature, voltage, humidity or vibration.
 
IDirect modemiDirect Ku LNB–Wikipedia
Evolution Platform – iDirect’s Evolution LNBs support DVB-S2 with Adaptive Coding and Modulation (ACM), a bandwidth-efficient technology for networks with larger outbound capacity requirements. The iDirect portfolio of advanced BUCs and LNBs is specifically tailored around the capabilities of iNFINITI® and Evolution® satellite routers, creating synergies that deliver increased flexibility, efficiency, and convenience through genuine innovations in ODU design and manufacturing.
 
California AmplifierCalifornia Amplifier
At CalAmp, we understand your performance demands for high stability and phase locked LNBs can be extreme, so we make sure our testing procedures are even more so. Our complete line of C & Ku Band high stability and PLL LNBs are available in a variety of frequency ranges and LO stability options.

C-Band LNB–Wikipedia
Ku-Band LNB–Wikipedia
The expression low noise refers the the quality of the first stage input amplifier transistor. The quality is measured in units called Noise Temperature, Noise Figure or Noise Factor. Both Noise Figure and Noise Factor may be converted into Noise Temperature. The lower the Noise Temperature the better. So an LNB with Noise Temperature = 100K is twice as good as one with 200K. C band LNBs tend have the lowest noise temperature performance while Ka LNBs have the highest (worst).
 
Miscellaneous–Wikipedia
LNA – A low-noise amplifier (LNA) is an electronic amplifier that amplifies a very low-power signal without significantly degrading its signal-to-noise ratio. An amplifier increases the power of both the signal and the noise present at its input. The LNB is a combination of low-noise amplifier, frequency mixer, local oscillator and intermediate frequency (IF) amplifier. It receives the microwave signal from the satellite collected by the dish, amplifies it, and downconverts the block of frequencies to a lower block of intermediate frequencies (IF). This downconversion allows the signal to be carried to the indoor satellite TV receiver using relatively cheap coaxial cable

Block Down Converter – Low Noise Amp–Wikipedia
 

Showing 13–14 of 14 results

Showing 13–14 of 14 results

 

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