What are you buying: one radio, or a radio system?
Most radio purchases start with a model number and end with a system. When a hotel, a contractor or a factory asks for a quotation, the equipment usually falls into up to three layers:
- Handheld (portable) radios carried by people who move around the site.
- Vehicle-mounted or base radios used where the operator sits in a vehicle, a gatehouse or a control room and can use more power, a permanent antenna and continuous DC supply.
- Repeaters, which are infrastructure rather than personal equipment: a repeater receives on one frequency and re-transmits on another so that radios which cannot hear each other directly can hear each other through the machine.
How far a radio reaches is not a fixed number on a datasheet. It depends on the terrain, the density and materials of the surrounding buildings, the height of the antennas, the transmit power, the frequency band and the amount of interference on the site. Two sites using the same radio can get very different results, which is why the honest answer to “what range does this radio have?” is a question back: what is your site like, and where exactly do you need coverage?
Licensing runs in parallel with all of this. Radios transmit on frequencies that are regulated nationally, and while a supplier can provide the equipment, program it and advise on common practice, the licence itself is the buyer’s responsibility.
Do you need handhelds, vehicle radios, repeaters, or all three?
The right mix comes from how people talk, not from a product brochure. Ask three questions: who needs to reach whom, how far apart are they, and what stands between them?
| Layer | Who uses it | Where it fits | What to check before ordering |
|---|---|---|---|
| Handheld / portable | Front-line staff, supervisors, security | Patrols, sales floors, events, hospitality, construction sites | Weight and size, protection rating, realistic battery life, audio accessory connector, speaker loudness |
| Vehicle-mounted / base | Drivers, dispatchers, site office | Fleets, transport, control rooms, temporary compounds | Output power, DC supply and wiring, remote-mount kit, external antenna, installation space |
| Repeater | Nobody carries it: it is site infrastructure | Coverage across large buildings, campuses, tunnels, hilly terrain, multi-floor sites | Duplexer, antenna and feeder, power and backup, network link, channel capacity |
Many small sites do not need a repeater at all: a team of five to fifteen people on one open site can often work handheld to handheld. A repeater becomes necessary when the direct path between handhelds is blocked or the distance is simply too long. For temporary events, a portable repeater such as the BR680 is worth considering.
Should you choose digital or analog?
Both technologies are still in service and both are still sold. Analog FM radios are simple, familiar and usually lower in unit cost. Digital radios, with DMR Tier II conventional as the mainstream format for business and industry, add capacity (two conversations inside one 12.5 kHz carrier using TDMA), stronger security, text messaging, positioning and clearer audio over most of the coverage area. For new systems with more than one talk group, digital is usually the better default, because the channel plan does not run out as the organisation grows; analog remains a strong choice for small teams, tight budgets and sites where the radio is a convenience rather than critical infrastructure. Many digital models also operate in analog mode, which matters when you have to interoperate with an existing analog fleet. The trade-offs are covered in depth in our companion article on DMR and analog radios.
Which band fits your site: VHF or UHF?
Land mobile bands are named by frequency: VHF around 136 to 174 MHz, and UHF around 350 to 470 MHz depending on region. The two behave differently, and the difference is physics rather than marketing.
| Band | Typical land mobile range | Behaviour | Usually fits |
|---|---|---|---|
| VHF | 136 to 174 MHz | Longer wavelength penetrates foliage and follows open ground and water more readily | Farms, forestry, open industrial land, coastal and river operations, long narrow sites |
| UHF | 350 to 470 MHz | Shorter wavelength penetrates and reflects better inside buildings; smaller antennas | Multi-floor buildings, dense urban areas, factories and warehouses, hospitality, indoor coverage with distributed antennas |
Neither band is better in general. A UHF handheld in a dense city block usually outperforms VHF, while a VHF radio across open water or along a valley often outperforms UHF. Dual-band radios such as the BF-TD910UV can work on both bands, which helps mixed teams, but they still need a licence for each band you transmit on. In many countries the regulator’s allocation decides the band for you, so confirm availability before designing around it.
How many channels do you really need?
A channel is not just a frequency. In practice a channel is a frequency plus a set of parameters: bandwidth, transmit power, squelch and tone settings, and on digital systems the talk group and timeslot. Counting channels therefore means counting the separate conversations you intend to keep apart.
A single-site team that only needs “everyone on one channel, supervisors on a second” is well served by a 16-channel analog handheld such as the CD-106D: one channel for the main group, one for supervisors, one for emergencies, one spare, with scanning to monitor several at once.
Once a site has several departments, or the fleet spans locations, channel discipline starts to matter. Digital radios normally organise channels into zones and select talk groups separately, so a 128-channel radio with zones, such as the TC338D, covers a multi-department site comfortably. Two details belong in the written specification:
- Channel spacing. Analog systems commonly use 12.5 kHz or 25 kHz spacing, and many regulators have moved or are moving to 12.5 kHz, so equipment should support both.
- Programming and naming. Decide who writes the channel plan and whether channels get names such as “Lobby”, “Loading bay” or “Security 2”. Whoever programs the radios, supplier or in-house technician, needs the plan in writing before delivery.
What do IP ratings and MIL-STD-810 actually tell you?
The IP code comes from IEC 60529. The two digits rate solids and liquids: the first digit (0 to 6) covers dust and object ingress, the second (0 to 8, and in some cases 9K) covers water.
| Rating | Solids | Water | Practical meaning |
|---|---|---|---|
| IP54 | Dust protected, limited ingress | Splashing water | Sheltered indoor and light outdoor use |
| IP55 | Dust protected | Water jets | Workshops, kitchens, dusty but sheltered sites |
| IP66 | Dust tight | Powerful water jets | Outdoor work with heavy rain and hosing |
| IP67 | Dust tight | Immersion, 1 m for 30 minutes | Construction, marine and wet outdoor work |
| IP68 | Dust tight | Immersion, conditions specified by the manufacturer | The most demanding wet environments |
Two cautions. First, ingress protection applies to the complete product as tested: battery fitted, accessory cover closed, correct antenna in place. Second, the IP rating says nothing about impact, heat or chemical exposure.
MIL-STD-810 is a family of environmental test methods covering vibration, shock, temperature, humidity, salt fog and more, rather than a single pass or fail mark. Because the standard defines methods and severity levels, two products can both be described as tested to MIL-STD-810 having been tested very differently, so ask which methods and severities were applied.
There is also a safety dimension that is not optional. Sites with flammable gas, vapour or dust, such as refineries, chemical plants, paint shops and some mines, require intrinsically safe equipment certified for the relevant zone, for example explosion-proof models such as the BF-TD937.
How long does the battery need to last on a shift?
Radio batteries are almost always lithium-ion, and capacity is quoted in milliamp-hours. Capacity alone does not predict runtime; the duty cycle does. A common industry reference is 5/5/90: the radio transmits 5 percent of the time, receives 5 percent and stands by for 90 percent. Transmitting at full power draws far more current than standby, and cold weather reduces usable capacity.
Practical steps when specifying:
- Define the shift: continuous hours of use plus overtime and emergency use.
- Ask for talk time and standby time at a stated duty cycle, not just “long battery life”.
- Budget for a spare battery per radio, or a high-capacity pack, if the shift is longer than the standard pack covers.
- Plan charging as part of the system: individual chargers, multi-unit gang chargers for shift handover, vehicle chargers for fleets.
- Remember that accessories such as a remote speaker microphone add load, which shortens runtime.
Digital radios also help here, because TDMA transmission is not continuous during a call: the handheld transmits only in its own timeslot, which typically extends battery life. The gain depends on the model, the power setting and the duty cycle, so verify it rather than assume it.
Which accessories decide whether the fleet works in practice?
The radio is the visible part; accessories decide whether people keep using it. The usual list, roughly in order of how often it is forgotten:
- Audio accessories. In a hotel or a warehouse the built-in speaker is too quiet, and on a factory floor it is drowned out. Remote speaker microphones, earpieces and high-noise headsets solve audibility and privacy at the same time.
- Antennas. Use the antenna matched to the band and the radio. A wrong-band or damaged antenna reduces range and can stress the transmitter.
- Carry solutions. Belt clips, harnesses, holsters and cases affect comfort, protection and where the antenna sits relative to the body.
- Charging infrastructure. Gang chargers, spare batteries and vehicle adapters belong in the original bill of materials, not in a later purchase.
- Programming and service tools. Programming cables and the customer programming software must match the model, and if your team will manage channels, agree now on who keeps the software and the configuration file.
- Sealing and compatibility. An accessory rated lower than the radio, or a poorly fitting connector, breaks the ingress protection of the whole assembly.
What should you prepare before you ask for a quotation?
A supplier can only propose the right configuration if the requirement is described. The table below is a compact brief that a buyer can fill in and send out, and it is also the fastest way to get comparable quotations.
| Item | What to write down |
|---|---|
| Site and coverage | Site type, size, terrain, building materials, floors, basements, areas that must not be covered |
| Users and groups | Headcount, departments, who must talk to whom, peak simultaneous conversations |
| Fleet mix | Handhelds, vehicle radios, base station, repeater, and how many of each |
| Voice and data | Voice only, or voice plus positioning, text messaging, recording or dispatch integration |
| Band | VHF or UHF, as licensed or licenceable in your country |
| Digital or analog | New fleet, or interoperability with existing analog equipment |
| Protection | Required IP rating, impact and chemical exposure, explosive atmosphere zones |
| Battery and charging | Shift length, spare batteries, charging locations |
| Accessories | Audio gear, antennas, carry solutions, chargers |
| Licensing | Whether you already hold frequencies or need to apply |
| Installation | Antenna position, feeder runs, rack space, power, network link, lightning protection |
| Growth | Expected headcount and sites over the next few years |
How do you compare quotations fairly?
Compare configurations, not totals. Two quotations for “200 handhelds” can differ in band, protection rating, battery capacity, whether chargers and audio accessories are included, whether programming and testing happen before delivery, and whether a repeater, antenna system, installation and training are in scope. Pricing is quoted per configuration, so the cheapest line item is often simply the thinnest configuration.
A short list of questions makes quotations comparable:
- Which exact model and variant: band, protection rating, battery type?
- What is included: batteries, chargers, antennas, audio accessories, programming, labelling, transport?
- Is the channel plan programmed and verified before delivery, and who owns the plan afterwards?
- What documentation is provided: user manual, configuration file, panel layout?
- How are firmware updates and spare parts handled?
- What is the pilot or acceptance test: how many radios, tested where, for how long?
Where does licensing fit in?
Licensing is the buyer’s responsibility. In most countries, transmitting on land mobile frequencies requires a licence from the national regulator, and the licence specifies frequencies, power and sometimes the technology. Some regions offer licence-exempt bands, but these carry power and antenna restrictions and are rarely suitable for multi-site or high-usage operations, and encryption capabilities may also be regulated. Confirm the rules for your site before the order is placed, and keep the licence details with the programming file.
Common selection mistakes to avoid
- Buying on unit price. The cheapest radio is often thin on accessories, battery capacity or protection, and the missing items are bought later at a worse rate.
- Leaving accessories out of the plan. Audio and charging are not extras; they decide whether the system is used at all.
- Planning coverage from a datasheet. Range figures are site-dependent, so a pilot test on the real site beats any brochure claim.
- Forgetting the licence. Equipment ordered for the wrong band can be unusable, however good the hardware is.
- No training plan. A two-way radio is simple, but channel and talk group conventions make a fleet work; ten minutes of training per user prevents most complaints.
From requirement to rollout: a practical sequence
- Write down who must talk to whom, where and how often: the talk group map.
- Decide the layers: handhelds only, or handhelds plus vehicle or base radios plus a repeater.
- Choose digital or analog and confirm any interoperability needs.
- Choose the band and confirm licensing.
- Set the protection rating and the battery requirement from the working environment.
- List accessories per user role, not per fleet.
- Send the pre-quotation brief and compare configurations line by line.
- Pilot a handful of radios in the real environment, including the worst-covered corner.
- Program, label, train and roll out, and keep the configuration file and the licence on record.
A radio system that matches how a team actually talks will be used every day; one chosen from a datasheet tends to end up in a drawer. Send us your site description and talk group map and we will propose a configuration. Pricing is quoted per configuration.