LS-28-EC-DRS Advanced Technology Portable Dual Receiver/Combiner Unit Data Sheet
●The LS-28-EC-DRS is an advanced technology “Dual” Receiver/Combiner employing sophisticated fourth generation Digital Signal Processing (DSP) technologies. The LS-28-EC-DRS supports independent two channel reception and/or combining of up to four RF bands, such as E, S, lower/upper-L, P, K, or custom bands up to 3 GHz. The RF inputs are processed by the Lumistar LS-27 series dual channel quad band PCI-based tuner card that acquires and downconverts the signals to a 70 MHz intermediate frequency (IF). These IF signals are then digitized by the LS-35-R two-channel digital IF receiver. The IF receiver offers pre-D combining or routes the data directly to a multi-mode dual demodulator for two independent channel operation. The digital multi-mode demodulation options include Multi-Symbol PCM/FM, SOQPSK, BPSK, QPSK, OQPSK, AQPSK, PCM/PM, Sub-carrier(s)). Demodulated data is bit synchronized to TTL and RS-422 data/clock outputs, including PCM code conversions. Optional post-D combining is available. Standard features such as Constellation diagram displays, IF spectral displays, bit error reader and onboard 70 MHz modulator are included at no additional cost. Since telemetry data is not routed through the system’s PCI bus, the LS-28-EC-DRS can process high data rate streams with no impact to the processing load of the CPU.
●Unlike analog legacy Receivers, the LS-28-EC-DRS is a true software-defined radio whose digital implementation is highly flexible and expandable. The unit provides single/dual/tri/quad band operation utilizing Lumistar’s “LS-27 series” dual channel/quad-band down converter in a single PCI slot. The IF receiver/combiner functionality is realized within a single PCI card state-of-the-art digital processing engine, which can operate as a single or dual channel receiver/combiner. The standard receiver processes data rates from 10 kbps to 30 Mbps for PCM/FM, 10 Kbps to 20 Mbps for BPSK & PCM/PM, and up to 30 Mbps for QPSK/OQPSK/SOQPSK. Higher data rates are available asd an option. The LS-28-DRS sensitivity and adjacent channel interference performance is superior due to the analog IF “SAW” and digital “FIR” filtering method employed at the IF. By using this method, IF bandwidths are optimaly set by software “as a function of data rate/PCM code/modulation format”, but can be selected by the user as desired. The digital Combiner utilizes our “S/N Ratio Measurement” firmware technique to provide a signal to noise improvement of at least 2.5 dB with equal signals near threshiold level at the LS-28-EC-DRS inputs. For optimal multi-path avoidance, the Combiner operates at fade “break frequencies” up to 50 KHz. Best source selection can also be performed via software. The performance of the LS-28-EC-DRS is repeatable, day-after-day, year-after-year, from unit-to-unit. It requires no periodic calibration. Life cycle costs are greatly reduced because future upgrades (such as new modulation formats) or an improved DSP algorithm are all implemented via software and/or firmware via an on-site upgrade.
|
LS-28-EC-DRS 、 LS-24-DRS-EC-M1 、 LS-26-DRS-EC-M2 、 LS-24-DRS-EC-M6 、 LS-24-DRS-EC-M6-V2 |
|
|
Portable Dual Receiver/Combiner Unit 、 Economy Chassis Dual Receiver/Combiner System |
|
|
Datasheet |
|
|
|
|
Please see the document for details |
|
|
|
|
|
|
|
|
|
|
|
English Chinese Chinese and English Japanese |
|
|
5/6/2020 |
|
|
|
|
|
|
|
|
206 KB |
- +1 Like
- Add to Favorites
Recommend
All reproduced articles on this site are for the purpose of conveying more information and clearly indicate the source. If media or individuals who do not want to be reproduced can contact us, which will be deleted.
Integrated Circuits
Discrete Components
Connectors & Structural Components
Assembly UnitModules & Accessories
Power Supplies & Power Modules
Electronic Materials
Instrumentation & Test Kit
Electrical Tools & Materials
Mechatronics
Processing & Customization
