Radio systems that stay on the air.
Field-proven RF engineering for Land Mobile Radio, with a focus on Kenwood NXDN. On site and remote, nationwide.
Integrated and supported in the field
About Smith's RF Systems
We provide reliable, field-proven RF engineering for Land Mobile Radio systems, with a particular focus on Kenwood NXDN. Whether you are deploying new infrastructure, troubleshooting a fault or planning an upgrade, the work is hands-on and the answers come from the field.
The company is independent and vendor-neutral by design, because no two RF deployments are the same. From repeaters and combiners through to monitoring and amplifiers, the job is to keep your communications online, optimised and ready for what comes next.
Serving all 50 states.
On site and remote, from the lower 48 through Alaska and into the Caribbean. Nationwide coverage is the point: a repeater on a ridge does not care which state line it sits behind.
Paul Smith
Founder and principal engineer
17 years at JVCKENWOOD, most recently as a Senior Wireless Engineer, leading NXDN trunked deployments and custom RF networks across North America.
Through Smith's RF Systems that experience is available directly, without a layer in between. Alongside Kenwood, Paul works hands-on with ICT Power, Davicom, TX/RX, dbSpectra, Crescend and Eaton, and specialises in monitoring, diagnostics and system integration.
- Senior Wireless Engineer at JVCKENWOOD, 17 years
- Lead engineer on NXDN trunked deployments across North America
- Kenwood, ICT Power, Davicom, TX/RX, dbSpectra, Crescend and Eaton
- Monitoring, diagnostics and multi-vendor system integration
To break a fourteen repeater NXDN GEN1 site into multiple sites, which saved the project from serious delay and cost.
Wes Golden, Owner, Teletec CommunicationsPaul is perhaps the most honest and caring technical person in our industry. I strongly recommend Paul to anyone deploying or having issues with an NXDN system.
Services
Every RF system has its own requirements, so these services are built to adapt rather than simply install.
Consulting
Strategic RF insight from the field.System planning, upgrades, integration problems and vendor selection, from someone who has deployed NXDN nationwide.
Installation
On-site deployment with precision.Repeaters, combiners, antennas, amplifiers and monitoring installed, tested and verified before handoff.
Maintenance and repairs
Keep downtime off the schedule.Preventative maintenance, health checks and fast repair to reduce outages and extend the life of your infrastructure.
Customisation
Adapted to your environment.Firmware settings, interface wiring and site-specific programming, so equipment fits the site rather than the reverse.
Training and education
Your team, confident on your own system.Operator and technician training delivered on your own equipment and documentation, so routine changes and first-line diagnosis can be handled in house.
Customer support
Accessible help when you need it.Phone, email or remote session, from a quick programming question to a deep diagnostic. Real answers, not ticket numbers.
Multi-vendor integration that works
Being tied to no single vendor is why the whole system is the deliverable. If it is in your rack, it is likely already familiar: repeaters, power systems, amplifiers and monitoring. That range is what makes faults quicker to isolate and compatibility something you do not have to hope for.
Monitoring and site visibility
Davicom NEURO and Cortex integrated into RF systems for real-time insight into repeater health, power supply alarms, PA faults and VSWR trends. SNMP mapping, custom input cards and site-wide alarm logic turn a rack into a dashboard you can read at a glance.
More on thisSite power
Power is a leading cause of downtime and one of the most preventable. ICT DC power systems and Eaton UPS backup, configured, monitored and properly distributed, with SNMP alarm integration and load balancing so the power system reports as well as works.
More on thisRF power components
The whole system depends on the power path from transmitter output to antenna. Crescend amplifiers, TX/RX combiners and duplexers and dbSpectra filters, aligned and tested for commissioning, intermod mitigation and degraded channel work.
More on thisConsoles and dispatch
Zetron MAX Dispatch, Telex IP-223 and Kenwood KAS-20, from initial setup and IP routing through audio interface configuration, console-to-repeater mapping and latency troubleshooting. Whether the console arrives by donor radio, IP gateway or direct repeater connection, PTT routing and audio paths get verified.
More on thisAlignment and diagnostics
Calibrated service monitor work across mobile and portable fleets, plus the diagnostic side of integration: what a reading means, which stage introduced it and what to change.
More on thisSelected work
Real sites, photographed as they were left.
- Clean, organised installations Cabling, labelling and layout done with long-term maintenance in mind.
- Vendor-neutral integration Configured to work across multiple manufacturers and technologies.
- Professional workmanship Every site is treated as though someone else will service it in ten years.
- Tested and documented Validated before handoff, so there are no surprises after deployment.
References
Whenever any question regarding NEXEDGE came up, the universal refrain was "Ask Paul." His depth of knowledge saved countless project hours.
Paul is practically a savant at how he is able to visualise and calculate proper RF calculations in order to optimise systems.
Breaking a fourteen repeater NXDN GEN1 site into multiple sites in under a day saved our project from serious delay and cost.
U.S., Alaska, Jamaica and the Bahamas
Let's talk about your RF system
Planning a new system, chasing a persistent fault or training a team. Tell us what you need and you will get a clear answer quickly.