Maximising link quality and reliability in VHF/UHF SATCOM (sponsored)
This article is brought to you by AR Modular RF
To ensure effective VHF/UHF Satellite communications, a number of variables must be considered. Providing superior up and downlink performance, as well as properly setting up the Receive path to maximise the link quality and reliability, are two key factors.
In response to these requirements, AR Modular has developed the RF Model AR-50 Booster Amplifier, which automatically detects and switches between Transmit and Receive paths with no operator intervention required.
For the Receive path, two modes are available: LNA-OFF and LNA-ON. The mode is selected using the Control Knob on the front panel of the Amplifier.
| LNA -ON Mode: | LNA – OFF Mode: | |
|---|---|---|
| Usage | Areas with poor satellite reception due to receive angle or obstructions such at foliage, mountains, urban density. | Areas with good satellite reception. |
| Receive Path | LNA Inserted, Gain: 12 dB Nominal Frequency: 240 to 270 MHz (Nom) | Straight Through, No LNA, Minimum Path Loss |
| Co-Site Filtering | Added Rejection of signals outside SATCOM Bands is provided. | None |
The following plots illustrate typical AR-50 receiver performance over a sample of three units operating in the LNA-On Mode. The plots show a consistent gain and flatness performance between Amplifiers with superior out of band rejection.
Marker 1 247.5MHz, 12.73dBm
Marker 1 247.5MHz, 13.305dBm
Marker 1 247.5MHz, 13.23dBm
It is important to note that performance can vary from unit to unit and across operating and environmental conditions.
Many AR Modular RF Booster Amplifiers offer Receive path LNA with similar functionality and performance, including the:
• AR-50 • AR-50C2
• AR-50G • AR-50RC
• AR-50RCS • AR-50SAT75
• AR-75
AR Competitive Edge products supply a multitude of unique RF solutions to companies around the world. The company's limitless support network reaches the far corners of the globe. AR products are backed by the company's "Competitive Edge" warranty, the best and most comprehensive warranty in the industry. AR Modular RF tactical radio booster amplifiers are lightweight, extremely durable and easy to use. Battle-Tested, tough and dependable including support for new and emerging waveforms their products play a critical role in wireless, radio, tactical radio and military communications.
Contact AR Modular RF, 21222 30th Dr. SE, Building C, Suite 200, Bothell, WA 98021, USA, 425-485-9000; or on the web at www.arww-modularrf.com
More from Digital Battlespace
-
![BAE Systems gets go-ahead for second phase of mission communications programme]()
BAE Systems gets go-ahead for second phase of mission communications programme
DARPA’s Mission-Integrated Network Control (MINC) programme was set up to develop an autonomous tactical network and enable critical data flow in contested environments.
-
![Work-from-home warfare: the power of mixed reality]()
Work-from-home warfare: the power of mixed reality
Defence-secure mixed reality headsets can save hours, or even weeks, of travel time to fix defunct equipment or get subject experts effectively “on-site” where they are needed.
-
![Northrop Grumman receives follow-on contract for CUAS and C-IED systems]()
Northrop Grumman receives follow-on contract for CUAS and C-IED systems
The Joint Counter Radio-Controlled Improvised Explosive Device Electronic Warfare (JCREW) counter-improvised explosive device (C-IED) and Drone Restricted Access Using Known Electromagnetic Warfare (DRAKE) counter-UAS (CUAS) systems are mounted and dismounted RF jammers.
-
![Adarga’s Vantage AI software selected for UK Strategic Command’s Defence Support]()
Adarga’s Vantage AI software selected for UK Strategic Command’s Defence Support
Adarga’s Vantage information analysis tool is in service with the UK MoD and individual UK forces. It builds on the company’s Knowledge Platform which processes, organises and analyses open source material, as well as information held by the user’s military, security and intelligence services.
-
![Thales digital twin system set for trials in UK next year]()
Thales digital twin system set for trials in UK next year
The digital twin system has been designed to evaluate the introduction of new systems onto platforms but could also be used to support procurement, training and battle planning in the future.
