Technology & Service Capability
From microwave RF to NMS, from on-site survey to overseas delivery — we write “what we can do” as third-party-verifiable numbers.
- Device to system
- RF front end, monitoring unit, and NMS platform are all self-developed, not bought-and-assembled
- Verifiable capability
- Every capability is backed by a patent number, software-copyright registration, or model approval
- Acceptable delivery
- Survey data, test records, and acceptance metrics archived item by item, not verbal promises
- Domestic / overseas split
- Two markets, two playbooks: domestic localized delivery, overseas brand & technical support
Six core capabilities, each verifiable
No adjective piling — behind every capability hangs a patent number, software-copyright registration, or model approval; verifiable and accountable
Microwave & RF Engineering
From component to system — we design every stage of the RF chain ourselves
- Dual-band / multi-band BDA platform: one RF front end adapts to multiple band combinations, cutting on-site retrofit cost
- Self-designed cross-band duplexer — isolation and rejection specs enforced to engineering red lines, not pieced together from bought modules
- Strict non-interchangeable uplink/downlink signal extraction (uplink RF420 / downlink RF430) — eliminates reverse crosstalk and receiver damage
- High-power linear amplification + ALC automatic level control — no drift under long full-power runs; low-noise receive chain designed to noise-figure targets
- Structural reliability backed by patents: moisture/heat dissipation, cable management, anti-wind antenna mounting, anti-detachment data interfaces
Every capability has a verifiable number
Patent numbers, software-copyright registrations, system certifications — originals and registration info can be verified item by item during business engagement
Four clusters: RF core, structural engineering, dual-/multi-band, fiber RF — patent numbers public and verifiable
Covering NMS platform, device monitoring, and protocol conversion; earliest developed in 2007
High-Tech Enterprise · ISO 9001 / 45001 / 27001 triple system · SRRC model approval on multiple devices
Dual-band / Multi-band
One RF front end adapts to multiple band combinations
- A dual-band BDAZL 2019 2 0571755.5
- An easily-installable dual-band BDAZL 2019 2 0571817.2
- A multi-band fiber BDAZL 2019 2 0544872.2
- An easily dis/assembled multi-band fiber BDAZL 2019 2 0571816.8
Structural Engineering
Built for tunnel, underground, and coastal humidity & high-wind mounting
- A 350M fiber BDA with moisture-proof, heat-dissipating structureZL 2019 2 0544811.6
- A 400M fiber BDA with cable-management structureZL 2019 2 0544873.7
- A 350M fiber BDA with stable antenna mountingZL 2019 2 0544874.1
- A 400M fiber BDA with anti-detachment data interfaceZL 2019 2 0544875.6
- An easily-installable BDAZL 2019 2 0544815.4
RF Core
Patent backing for passives and the low-noise receive chain
- A cross-band duplexerZL 2019 2 0544785.7
- A low-noise, heat-dissipating fiber RF BDAZL 2019 2 0571785.6
Fiber RF
Fiber BDA whole-machine architecture and remote monitoring capability
- A fiber RF BDAZL 2019 2 0571799.8
- A communication BDA with remote working-state monitoringZL 2019 2 0572057.7
- BDA NMS Software V1.02024SR1851717
- All-Optical Network Coverage System Monitoring Software V1.02024SR1862186
- Kingtone GSM Digital Fiber BDA Monitoring Software V1.02010SR049131
- Kingtone WCDMA BDA Monitoring Software V1.02010SR049117
- Kingtone Optical Module Monitoring Software V1.02010SR049116
- Kingtone RS485 LNA Monitoring Software V1.02010SR049135
- Kingtone BDA Cooling System Control Software V1.02010SR049132
- Kingtone RS485 Frequency-Select Serial-Parallel Protocol Conversion Software V1.02010SR049130
- Kingtone RS485 Module Debugging Software V1.02010SR048606
Also available: information-security, quality-management and other system certification certificates, plus SRRC radio-transmission equipment model-approval certificates for multiple devices; upon request we can provide certificate copies and registration lookup paths during business engagement.
One system, two markets, two service radii
Domestic: localized delivery & spare-parts support; overseas: own-brand export & English technical support — not one playbook for both
Localized delivery across 12 industry scenarios
- 7000+ projectsHotels, hospitals, campuses, transport hubs, smart manufacturing, energy & chemical, tunnels, emergency — all scenarios landed
- Survey-firstMeasure before design; provide constructable plan by building structure and interference environment
- Local spare parts & responseDevices and passives locally supplied; faults quickly recovered by swap
- Maintenance subscription optionalS200 management + remote inspection — hand the system to a party that owns it long-term
Own-brand export with English technical support
- Brand structureKINGTONE is the export brand and part of the company name; JIMTOM is the registered product mark that current certificates are issued under
- Trademark statusJIMTOM registered in China and via the Madrid system (IR 1446419); KINGTONE filed in China, under examination
- English technical docsSpecs, drawings and acceptance standards delivered in English; engineers can deploy directly
- Remote supportRemote commissioning and technical response, with spare-parts strategy and cross-time-zone communication
- Certification registerCE (RED), RoHS 2.0, SRRC, ISO 9001/45001/27001 — full register with issuers and reference numbers at /certifications/
- 01SurveySURVEY
Building structure, existing network, interference-source check — output survey record
- 02DesignDESIGN
Link budget, coverage simulation, equipment selection and topology diagram
- 03SuperviseSUPERVISE
Cable routing, device installation, on-site process-standard control
- 04CommissionCOMMISSION
Power and gain adjustment, isolation and interference retest
- 05AcceptACCEPT
Field strength, call quality, latency and other metrics archived item by item
- 06OperateOPERATE
NMS management, remote inspection, fault response and spare-parts support
Frequency and standard matrix
Select by band and standard; confirm licensing conditions before discussing equipment configuration
| Band | Standard / role | Typical scenarios | Licensing & notes |
|---|---|---|---|
| VHF 136–174 MHz | VHF conventional radio | Forestry, water conservancy, coastal, field operations | Spectrum licence required |
| 350 MHz | Trunking / public safety | Public safety, emergency command & dispatch | Spectrum licence required |
| 400–470 MHz | UHF conventional / DMR digital | Hotel, hospital, campus, factory, parking, tunnel | Main band; SRRC-approved models |
| 800 MHz | Trunked private network (TETRA / trunking) | Metro, port & terminal, large plants | Project-based configuration |
| 1.4 GHz / 1.8 GHz | LTE / 5G private network | Industrial campus, IIoT, smart factory | Spectrum licence held by customer |
| 2.6 GHz / 3.5 GHz | 5G NR private network | Plants, venues, mines, ports | Industry private network |
Scope: private networks only
KINGTONE supplies private radio and private LTE/5G coverage — networks that the customer owns and operates. Coverage of public-carrier cellular service, and consumer-grade plug-in amplifiers, are outside our scope of supply. A private network is engineered from a link budget: band, output power, antenna isolation and feeder loss are calculated for the site rather than selected from a gain figure on a box.
Buildings and utility tunnels where fiber can be laid: long reach, stable latency, digital and analog fiber modes both supported.
Sites where cabling is impractical or across separate buildings: no fiber needed, the link bridges head-end and remote units over the air.
Used when a co-channel signal already exists on site. Cancellation better than 30 dB removes the root cause of self-oscillation.
Linear enclosed spaces such as tunnels, utility galleries and metro lines: uniform radiation along the route, no coverage holes.
High-rise buildings split into coverage units by floor or fire compartment for isolation, expansion and fault localisation.
Spot fill for small dead zones; the micro-power platform already holds SRRC model approval.
Antenna selection, isolation calculation and feeder insertion-loss budget are handed over together, with VSWR and insertion-loss test records.
Both remote network monitoring and local on-site control are supported; once connected to S200 NMS, multi-brand devices can be managed together.
Technical FAQ: self-oscillation, isolation, selection and loss budget
These are the questions integrators and end users ask most often at design stage — usable directly for technical handover
Why does a repeater self-oscillate, and how is it solved?
Self-oscillation comes from insufficient isolation between the donor antenna and the service antenna: the output signal is picked up again at the donor side and forms positive feedback. There are three remedies — increase the horizontal or vertical separation between the two antennas, add an isolation barrier or exploit building structure as shielding, or reduce gain and enable automatic level control (ALC). The correct approach is to calculate the isolation margin at design stage rather than tuning gain on site.
How much antenna isolation is required?
As a rule of thumb, antenna isolation must exceed the system gain by 10–15 dB to leave a stable margin. For an 80 dB system gain, isolation of at least 90–95 dB is recommended. Vertically separated mounting usually gives better isolation than horizontal, and floor slabs, parapets and lift shafts can be used as natural shielding.
Fiber-optic BDA or wireless repeater — which one should I choose?
If fiber can be laid, choose fiber: longer reach, stable latency and immunity to over-the-air interference. Only use a wireless broadband repeater where cabling is impractical — heritage buildings, road crossings, temporary sites. The two can be mixed: fiber on the trunk for quality, wireless on the last branch to save cost and time.
How many antenna points can one coverage unit serve?
It depends on the branch insertion-loss budget: from head-end output to the farthest antenna, the cumulative loss of feeder, power divider, coupler and connectors should stay within about 10 dB. For conventional 400–470 MHz indoor antennas, 4–8 antenna points per head-end is a common configuration, adjusted after on-site survey.
Can radio equipment be used in hazardous areas?
Yes, but explosion-proof models must be selected to match the hazardous-area classification. Underground mines, oil and gas fields and chemical tank farms are mandatory cases: confirm the zone classification and the explosion-proof marking before selecting equipment. Standard models cannot be substituted, and an added enclosure alone does not make a device compliant.
Want to discuss a specific technical solution?
Send us your scenario, building conditions, and band requirements; our technical team will provide link budget and equipment-selection advice; test data, patent, and software-copyright registration info can also be provided for verification.