Tactical HF Vs VHF Radio - When Should I Use Them
Tactical HF vs VHF radio – when should I use them
December 6, 2017
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HF RadioInteroperabilityTactical Radio CommunicationsVHF Radio
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Tactical HF vs VHF radio – when should I use them?
When operating a radio in the field, getting the best out of your equipment relies on understanding what is the best communications device to use in a given situation. High Frequency (HF) and Very High Frequency (VHF) transmissions are an important part of tactical operations, especially in rough terrain or remote locations. Ensuring your communications aren’t interrupted or distorted is vital for better safety.
What is HF radio?
HF frequencies (in the 3-30 MHz band) are propagated by transmission from a radio transceiver, where it is reflected by the ionosphere back to Earth for reception by another radio set. This communications medium is perfect for long-range communications, and is widely used in tactical operations as a method of conversing between remote field operators and a central base.
What is VHF radio?
VHF operates at a higher frequency range than HF, usually between 30-300 MHz. These transmissions, due to their higher frequency, penetrate through the Ionosphere, with little or no refraction. VHF propagation is ‘line of sight’ in nature and so is restricted to shorter-range communications. Terrestrial transmissions make VHF the perfect medium for communications between field operators and other ground squads.
How can I get the best use out of them both?
Understanding when to use HF or VHF radio requires operators to have a rough idea of the distances over which they have to transmit. HF radios cover far greater distances thanks to ionospheric refraction – but the HF radio signals are prone to distortion by atmospheric conditions such as geomagnetic storms or solar flares that radio users cannot control. HF communications are best suited for long distance communication between ground operators and base stations. The field benefits of VHF over HF radio is in their relative immunity to space weather conditions or electrical interference. However, because VHF transmissions travel more terrestrially, they can be affected or blocked entirely by land features such as buildings or mountains that distort line of sight transmission. VHF communications are best used for transmission of data between radio operators within line of sight over flat ground.
The importance of interoperability in the field
Traditionally, when personnel needed to transmit information over different distances, an operator will need to rebroadcast the information between different equipment – changing the signal from HF to VHF or vice versa – to make this possible. This can lead to voice distortion or operational errors which can be costly if mission-critical information is being communicated.
HF radio covers greater distances – but VHF radio isn’t as influenced by atmospheric conditions or electrical influence.
Using both HF and VHF radio in the field is vital to achieving communication success. In order to get the best possible communications network, you should invest in tactical radio equipment that allows for interchange between HF and VHF radio signals.
Barrett Communications boast a notable range of tactical equipment, with HF and VHF coupled for an interoperable and all-in-one communications tool. The 2063 HF-VHF Cross Gate device allows for the seamless transfer of information between HF and VHF signals. With the device ‘linked’ to your chosen radio bands, you reduce the risk of errors in signal translation or voice distortion.
Similarly, the PRC 2090 Rapid Field Development System offers an interoperable unit for communications over any distance, with the 2063 Cross Gate integrated into the design of the compact radio.
Talk to someone about the best in HF & VHF communications
Using HF and VHF radio covers your tactical operations against communication issues in the field – meaning radio operators on the ground are never isolated from other squads or mission-critical information from headquarters or a field base. For more information on Barrett’s range of interoperable tactical radio products, contact the team today.
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Specifications are typical. Equipment descriptions and specifications are subject to change without notice or obligation.
Specifications can be changed to meet country specific requirements and those of local radio communications authorities. As such the specifications shown here may not reflect those of products distributed in some countries.
The frequency range of the 4090 HF SDR Transceiver can independently locked for both the transmit and the receive function, as a feature of the 4000 series HF programming software
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Specifications are typical. Equipment descriptions and specifications are subject to change without notice or obligation.
Specifications can be changed to meet country specific requirements and those of local radio communications authorities. As such the specifications shown here may not reflect those of products distributed in some countries.
The frequency range of the PRC-4090 HF SDR Transceiver can independently locked for both the transmit and the receive function, as a feature of the 4000 series HF programming software.
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Specifications are typical. Equipment descriptions and specifications are subject to change without notice or obligation.
Specifications can be changed to meet country specific requirements and those of local radio communications authorities. As such the specifications shown here may not reflect those of products distributed in some countries.
The frequency range of the 4050 HF SDR Transceiver can independently locked for both the transmit and the receive function, as a feature of the 4000 series HF programming software
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