Each node knows only its neighbour.
The whole knows the field.

How do you build a tactical network that survives contact?

You layer bands rather than betting on one. HF for beyond line of sight without any infrastructure, VHF for the combat net, multiband radios so one set covers several roles, and a MANET mesh for data — because no single band survives every terrain, distance and jamming condition an operation will meet.

The practical sequence is a terrain and line-of-sight study, then node and relay placement, then bearer planning — HF for the long reach, VHF and multiband for the tactical net, mesh for local data, satellite for reachback, cellular where it exists and is trusted — then integration with the command system so the picture survives a bearer switching underneath it.

We have supported the positioning and deployment of tactical mesh networks using advanced MANET radios across programmes in the UAE and Qatar, and have run business development and sales across the L3Harris tactical radio portfolio in the region — VHF, HF and multiband.

• HF, VHF and multiband radio selection and fielding
• Terrain and line-of-sight planning, relay siting
• MANET mesh design and configuration
• Satellite and cellular bearer integration with failover
• Spectrum and interoperability constraints
• Integration with command and control applications

What is a MANET and why does it matter operationally?

A mobile ad hoc network is a radio network with no fixed infrastructure: every node routes for every other, and the topology re-forms continuously as units move. It matters because it removes the dependency on a base station that may not exist, may be destroyed, or may simply be out of range.

The trade is bandwidth and range against resilience and self-organisation. A mesh that carries full-motion video across twelve hops is a different design from one carrying position and voice across three, and pretending otherwise is how a network passes a demonstration and fails an exercise.

Why does HF still matter when satellite exists?

Because HF depends on no infrastructure between the two ends. It bounces off the ionosphere to reach hundreds or thousands of kilometres with nothing in orbit, nothing on a hilltop and no airtime to pay for — which makes it the fallback that still works when satellite is unavailable, denied, or simply not funded for that unit. It still needs radios, antennas, power and trained operators.

The trade is that HF is temperamental. Propagation changes with time of day, season and solar activity, so frequency planning is real work and automatic link establishment is what makes it usable by soldiers rather than by radio operators. Bandwidth is low — enough for voice, position and short data, not video.

A properly designed force uses HF as the long-range fallback under everything else, which is exactly the layer that gets cut from a procurement to save money and is then missed on the first operation where the satellite terminal does not work.

What does a multiband radio actually buy you?

Fewer radios, and fewer training and logistics chains. A multiband set covering HF through VHF and UHF lets one piece of equipment serve combat net, air-to-ground and beyond-line-of-sight roles, which matters more to a defence ministry than any single band's performance figure.

The evaluation questions that decide these procurements are rarely about raw range. They are about waveform interoperability with allied and legacy equipment, cryptographic approval, battery and thermal behaviour in Gulf conditions, and whether the same set can be fielded across vehicle, manpack and base-station configurations.

How does a tactical network connect to satellite communications?

Through a gateway node that holds the satellite terminal and advertises reachback to the rest of the mesh, with policy deciding what traffic is worth the latency and cost. The design question is not whether to add SATCOM but which traffic is allowed onto it and what happens when it drops.

Getting this wrong is expensive in both directions: a link saturated by video nobody needed in real time, or a commander without reachback because the gateway was a single point of failure.