Orbital Ka-Band Modified Series LNBs
Orbital Low Noise Block Downconverters
Ka-Band Ext Ref Remote LO LNB
Ultra small and light weight Ka external reference LNB
Orbital Flexibility
Ka systems offer the promise of higher bandwidths, faster data, and smaller, lighter terminals. However, conventional LNBs tend to be large and heavy, causing increased requirements in size and weight of supporting structures, and require heavier motors to move the increased mass. As well, mobile applications mean exposure to vibration, temperature, and moisture extremes. Electronics at the feed then require stringent environmental housings to protect delicate circuits and assure stable operation under extreme environmental conditions. Orbital Research solves these problems by cutting the LNB in half and moving sensitive components off the feed to a more secure position behind the dish - leaving the low noise and lightweight LNA, mixer and IF amp in a small, secure package at the feed. Now, the antenna is much lighter and much more agile.
Orbital KaRLO LNBs can also be modified to meet mobile, airborne, and military standards
- MIL-STD-188-164A Interoperability of SHF Satellite Communications Earth Terminals.
- FAA RTCA DO-160E Environmental Conditions and Test Procedures for Airborne Equipment.
- MIL-STD-810F.
- Meet RoHS requirements.
Custom Engineering
- MIL STD-188-164A Interoperability of SHF Satellite Communications Earth Terminals.
- FAA RTCA DO-160E Environmental Conditions and Test Procedures for Airborne Equipment
- MIL-STD-810F
- Meets RoHS requirements
- Temperature compensated gain
Environmental
- O ring sealed connectors for weather resistant operation
- Preserve the environmental engineering of the original LNB
Options
- Other input / output frequency ranges available
- External Reference of 10 MHz
Loss of Lock Alarm – LOLA (optional)
LNBs can lose oscillator lock from internal failure or loss of the 10 MHz reference. The LOLA detects this anomaly and increases the current consumption of the LNB over the IFL cable to trigger a redundant switch or other detector. No extra ports, cables or infrastructure are required.
Simply hookup the LNB with 10 MHz present, set the current windows on the redundancy system so they are just out of triggering, then turn off the 10 MHz to trigger the LNB LOL circuit. The redundant switch should activate. Restore 10 MHz and the LOLA will reset.
It should be noted that these LNBs are exceptionally good for 10 MHz lock range. They will stay locked under adverse 10 MHz conditions and keep the system in sync.
Orbital LRO692X Series Ext Ref Ka Remote LO LNB Specifications
Click to download specs & mechanical PDF
| Electrical Specifications | ||
| Input | ||
| Frequency: | 18.2 to 19.2 GHz, 19.2 to 20.2 GHz, | |
| 20.2 to 21.2 GHz, 21.2 to 22.2 GHz, | ||
| 21.4 to 22.0 GHz | ||
| (Standard frequencies. Others available) | ||
| Bandwidth: | up to 1,000 MHz (depends on input freq) | |
| Input Stability: | Unconditionally stable | |
| (no oscillation) for all possible input loads | ||
| Input VSWR: | 2.5 : 1 nominal | |
| Noise Figure: | 1.8 dB maximum, 1.2 dB nominal @ 23°C | |
| Return Loss: | ³12 dB | |
| Signal Level: | -90 to –40 dBm (-20 dBm max) | |
| Output | ||
| Bandpass: | 950 to 1950 MHz (Standard) | |
| 1000 to 2000 MHz (Military) | ||
| Output VSWR: | 2.1 : 1 maximum @ 75W | |
| Output Stability: | Unconditionally stable | |
| (no oscillation) for all possible input loads | ||
| 1 dB Compression Point: | ||
| +3 dBm min, up to +7 dBm (optional) | ||
| 3rd Order Intercept: | ||
| +13 dBm min, up to +17 dBm (optional) | ||
| Return Loss: | ³10 dB | |
| 10MHz Reference | ||
| Level: | -10 to 0 dBm | |
| Local Oscillator | ||
| Frequency: | 17.25, 18.25, 19.25, 20.25, 20.45 GHz | |
| Stability: | Dependent on external reference | |
| Leakage: | -45 dBm maximum @ IF output & input | |
| Phase Noise based on supplied reference: | ||
| Reference | LNB | |
| -105dBc/Hz @10Hz | -32dBc/Hz | |
| -130dBc/Hz @100Hz | -62dBc/Hz | |
| -150dBc/Hz @1kHz | -72dBc/Hz | |
| -150dBc/Hz @10kHz | -82dBc/Hz | |
| -150dBc/Hz @100kHz | -92dBc/Hz | |
| Gain | ||
| Typical: | 55 dB | |
| Variation over Temperature & Frequency: | ||
| ±2.0 dB maximum | ||
| Gain Flatness: | ±0.75 dB max over any 27 MHz segment | |
| ±1.0 dB max over entire bandwidth | ||
| In-Band Spurious Rejection: | ||
| >45 dBc | ||
| Image Rejection: | >40 dB | |
| Power | ||
| DC Input: | 12 to 15 VDC, 450 mA maximum | |
| Filtering: | Transient, over and reverse voltage protected | |
| Mechanical Specifications | ||
| Size: | 45 x 51 x 115 mm | |
| (with F connector) | ||
| Weight: | 350 grams | |
| Paint: | Allodyne finish to MIL SPEC C-5541 Cat 3 | |
| Environmental Specifications | ||
| Operating Temp: | -40 to +85°C | |
| Relative Humidity: | Up to 95% condensation and frost |
KaRLO
Ka systems offer the promise of higher bandwidths, faster data, and smaller, lighter terminals. However, conventional LNBs tend to be large and heavy, causing increased requirements in size and weight of supporting structures, and require heavier motors to move the increased mass. As well, mobile applications mean exposure to vibration, temperature, and moisture extremes. Electronics at the feed then require stringent environmental housings to protect delicate circuits and assure stable operation under extreme environmental conditions. Orbital solves these problems by cutting the LNB in half and moving sensitive components off the feed to a more secure position position behind the dish - leaving the the low noise and lightweight LNA, mixer and IF amp in a small, secure package at the feed. Now, the antenna is much lighter and much more agile.
KaRLO meets or exceeds the following standards:
- MIL-STD-188-164A Interoperability of SHF Satellite Communications Earth Terminals.
- FAA RTCA DO-160E Environmental Conditions and Test Procedures for Airborne Equipment.
- MIL-STD-810F.
- Meet RoHS requirements.
Here's a few LNB solutions, for adding additional services, or perhaps you have just purchased a new LNB with external DC or dual DC. There are a few external reference examples as well. |
3 LNB Solution
How to order an LRO692X Series Orbital Ka Band Remote LO Ext Ref LNB
For pricing options please call 1-604-856-0305 or contact us.
| PART NUMBER | LO | Input
(GHz) |
Output
(GHz) |
Band
width (GHz) |
| LRO1725XS External Reference Remote LO LNB | 17.25 | 18.2~19.2 | .95~1.95 or 1.00~2.00 | 1.000 |
| LRO1825XS External Reference Remote LO LNB | 18.25 | 19.2~20.2 | .95~1.95 or 1.00~2.00 | 1.000 |
| LRO1925XS External Reference Remote LO LNB | 19.25 | 20.2~21.2 | .95~1.95 or 1.00~2.00 | 1.000 |
| LRO2025XS External Reference Remote LO LNB | 20.25 | 21.2~22.2 | .95~1.95 or 1.00~2.00 | 1.000 |
| LRO2140XS External Reference Remote LO LNB | 21.40 | 21.4~22.0 | .95~1.95 or 1.00~2.00 | 1.000 |
