TETRA Repeaters
150 / 380 / 390 / 400 / 415 / 425 / 450 / 700 / 800 MHz · +18 to +45 dBm
The TETRA and P25 product lines are not third-party certified yet. Where a project timeline allows, we can assess the certification path, lead time and cost against your specific band, power and interface requirements. If your tender explicitly requires existing certificates, tell us and we will be straight with you about what is feasible.
OEM private-label manufacturing and ODM design are both available. Regional distribution is not currently offered.
TETRA Repeaters — what the line covers
A complete TETRA product line covering four frequency bands and seven power tiers, in band-selective, channel-selective, off-air, fibre-coupled, tunnel and pico configurations. The line is not third-party certified yet; where a project timeline allows, we can assess the certification path against your specific band, power and interface requirements.
- 150 MHz (VHF)
- 380 MHz
- 390 MHz
- 400 MHz (UHF)
- 415 MHz (Canada)
- 425 MHz (Canada)
- 450 MHz
- 700 MHz
- 800 MHz
+18 / +19 / +20 / +27 / +30 / +33 / +36 / +37 / +40 / +43 / +45 dBm
- Off-air (RF)
- Fibre-coupled (optical)
- BTS-coupled fibre
- Digital fibre (SDR)
- Tunnel coverage
- Pico / micro-cell
Compatibility is stated for the cited model; confirm the exact combination against the model datasheet before ordering.
Models on this line
Parameters below are taken from the model datasheet. Where a figure has not been verified against the document body it is marked accordingly rather than estimated.
KT-A-T-B4P40B
Internal model: KT-T400RP-B2-P40
- Band-selective filtering across the 400 MHz TETRA band
- Off-air RF coupling for single-site coverage extension
- Multi-standard compatibility (see model datasheet)
Verified parameters and datasheet
| Standard | TETRA | |
| Frequency band | 400 MHz | |
| Output power class | +40 dBm (10 W) | |
| Internal model | KT-T400RP-B2-P40 | |
| Detailed electrical specs | Contact us for the full datasheet(to be confirmed) | |
Source file: TETRA 400MHz 10W Off-air Band Selective Repeaters.pdf
KT-A-T-B4P30C-2
Internal model: KT-T400RP-CH2-P30
- Channel-selective: passes only the configured TETRA channels
- Suitable where the band is congested and full-band amplification is not viable
- Off-air RF coupling, low-power indoor or local coverage
Verified parameters and datasheet
| Standard | TETRA | |
| Frequency band | 400 MHz | |
| Output power class | +30 dBm (1 W) | |
| Channel count | 2 channels | |
| Internal model | KT-T400RP-CH2-P30 | |
| Detailed electrical specs | Contact us for the full datasheet(to be confirmed) | |
Source file: TETRA 400MHz 1W Off-air Channel Selective Repeaters.pdf
KT-A-T-B8P37B
Internal model: KT-T800RP-B8-P37
- Compatible with analog, DMR, TETRA, TETRAPOL and P25 (Phase 1 and 2)
- High-linearity power amplifier with intelligent ALC
- Full duplex, high isolation from uplink to downlink
- User-adjustable gain, uplink and downlink independent
- Local and remote monitoring with automatic fault alarm and remote control (optional); SNMP optional
- Self-diagnostic platform, microprocessor based; local access via Ethernet
- IP67 / NEMA 4X weatherproof for all-weather installation
Verified parameters and datasheet
| Uplink | Downlink | |
|---|---|---|
| Standard | TETRA / TETRAPOL / P25 (Ph1 & Ph2) / DMR / analog FM | |
| Working frequency — uplink | 806.000–814.000 MHz | — |
| Working frequency — downlink | — | 851.000–859.000 MHz (customizable) |
| Passband bandwidth | min 8 MHz | |
| Downlink-to-uplink separation | min 45 MHz | |
| Max output power | +33 dBm | +37 dBm |
| Max gain | 90 dB | 90 dB |
| Gain adjustment range | 1–31 dB, step 1 dB | |
| Auto level control (ALC) | 30 dB | |
| Passband ripple | ≤ 3 dB | |
| Noise figure @ max gain | ≤ 5 dB | |
| Phase P-P error / RMS phase error | ≤ 20 | ≤ 5 |
| Spurious emission, in band | ≤ −36 dBm / 30 kHz | |
| Spurious emission, 1 GHz | ≤ −30 dBm / 30 kHz | |
| Inter-modulation, in band | ≤ −36 dBm / 3 kHz or ≤ −60 dBc / 3 kHz | |
| Max input power, no damage | +5 dBm | |
| Max input level (non-destructive) | −10 dBm | |
| VSWR | ≤ 1.5 | |
| I/O impedance | 50 Ω | |
| RF connector | N-Type female (changeable, bottom of casing) | |
| Ingress protection | IP67 / NEMA 4X | |
| Dimension (package) | 520 × 450 × 230 mm | |
| Weight | N.W. 32 kg | G.W. 35 kg |
| Internal model | KT-T800RP-B8-P37 | |
Source file: TETRA800 +37dBm Band Selective Repeaters (806-814 / 851-859 MHz).doc
KT-A-T-B8P43B
Internal model: KT-T800RP-B18-P43-B
- Band-selective filtering across the 800 MHz TETRA band
- 18 MHz nominal bandwidth per band
- ALC with ΔPo ≤ ±1 dB at +20 dB input
- Off-air RF coupling
Verified parameters and datasheet
| Uplink | Downlink | |
|---|---|---|
| Working frequency — nominal band | 806–824 MHz | 851–869 MHz |
| Bandwidth (nominal band) | 18 MHz | |
| Output power (modulating signal) | +33 dBm | +43 dBm |
| Gain | 90 ± 3 dB | |
| ALC | input signal +20 dB → ΔPo ≤ ±1 dB | |
| Noise figure (in band, max gain) | ≤ 5 dB | |
| Ripple in band | ≤ 3 dB | |
| Frequency tolerance | ≤ 0.05 ppm | |
| Time delay (in band) | ≤ 5 µs | |
| Gain adjustment step | 1 dB | |
| Gain adjustment range | ≥ 30 dB | |
| Gain adjustable linearity | 10 dB → ±1.0 · 20 dB → ±1.0 | |
| Internal model | KT-T800RP-B18-P43-B | |
| Dimensions / weight | Contact us for the full datasheet(to be confirmed) | |
Source file: TETRA800 20W Off-air Band Selective Repeaters.doc
KT-A-T-B5P36C-32
Internal model: KT-T415RP-CH32-P36-B
- Canadian TETRA band: uplink 410.5–412.5 MHz, downlink 415.5–417.5 MHz
- 1 to 32 channels, selectable at 90 / 45 / 30 / 12.5 kHz
- 12.5 kHz channel step with minimum 5 MHz downlink-to-uplink separation
- ALC range over 30 dB; gain adjustable 1–31 dB in 1 dB steps
- Low group delay — 14 µs at 90 kHz channel selectivity
- Off-air RF coupling
Verified parameters and datasheet
| Uplink | Downlink | |
|---|---|---|
| Standard | TETRA, Canada band | |
| Working frequency — uplink | 410.5–412.5 MHz (customizable) | — |
| Working frequency — downlink | — | 415.5–417.5 MHz (customizable) |
| Passband bandwidth (min) | Channel-selective: 90 / 45 / 30 / 12.5 kHz | |
| Number of passbands | 1 to 32 (90 / 45 / 30 / 12.5 kHz) | |
| Channel step | 12.5 kHz | |
| Downlink-to-uplink separation | min 5 MHz, factory adjustable | |
| Max output power | +18 dBm | +36 dBm |
| Max gain | 80 dB | 80 dB |
| Gain adjustment range | 1–31 dB, step 1 dB | |
| Auto level control (ALC) | > 30 dB | |
| Passband ripple | ± 2.0 dB | ± 2.0 dB |
| Max input level (non-destructive) | −10 dBm | |
| VSWR | ≤ 1.5 | |
| Noise figure @ max gain | ≤ 5 dB | |
| Phase P-P error / RMS phase error | ≤ 20 | ≤ 5 |
| Spurious emission, in band | ≤ −36 dBm / 30 kHz | |
| Spurious emission, 9 kHz–1 GHz | ≤ −36 dBm / 30 kHz | |
| Spurious emission, 1 GHz | ≤ −30 dBm / 30 kHz | |
| Inter-modulation, in band | ≤ −15 dBm / 30 kHz | ≤ −15 dBm / 30 kHz |
| Group delay | Band-selective 5 MHz BW: 3.5 µs · CS 90 kHz: 14 µs · CS 45 kHz: 23 µs · CS 30 kHz: 32 µs | |
| Internal model | KT-T415RP-CH32-P36-B | |
| Dimensions / IP rating / connectors | Contact us for the full datasheet(to be confirmed) | |
Source file: Tetra 415M +36dBm Channel Selective Repeaters (canada).pdf
KT-A-T-B6P36C-32
Internal model: KT-T425RP-CH32-P36-B
- Canadian TETRA band: uplink 421–423 MHz, downlink 426–428 MHz
- 1 to 32 channels, selectable at 90 / 45 / 30 / 12.5 kHz
- 12.5 kHz channel step with minimum 5 MHz downlink-to-uplink separation
- ALC range over 30 dB; gain adjustable 1–31 dB in 1 dB steps
- Off-air RF coupling
Verified parameters and datasheet
| Uplink | Downlink | |
|---|---|---|
| Standard | TETRA, Canada band | |
| Working frequency — uplink | 421–423 MHz (customizable) | — |
| Working frequency — downlink | — | 426–428 MHz (customizable) |
| Passband bandwidth (min) | Channel-selective: 90 / 45 / 30 / 12.5 kHz | |
| Number of passbands | 1 to 32 (90 / 45 / 30 / 12.5 kHz) | |
| Channel step | 12.5 kHz | |
| Downlink-to-uplink separation | min 5 MHz, factory adjustable | |
| Max output power | +18 dBm | +36 dBm |
| Max gain | 80 dB | 80 dB |
| Gain adjustment range | 1–31 dB, step 1 dB | |
| Auto level control (ALC) | > 30 dB | |
| Passband ripple | ± 2.0 dB | ± 2.0 dB |
| Max input level (non-destructive) | −10 dBm | |
| VSWR | ≤ 1.5 | |
| Noise figure @ max gain | ≤ 5 dB | |
| Phase P-P error / RMS phase error | ≤ 20 | ≤ 5 |
| Spurious emission, in band | ≤ −36 dBm / 30 kHz | |
| Inter-modulation, in band | ≤ −15 dBm / 30 kHz | ≤ −15 dBm / 30 kHz |
| Internal model | KT-T425RP-CH32-P36-B | |
| Dimensions / IP rating / connectors | Contact us for the full datasheet(to be confirmed) | |
Source file: Tetra 425M +36dBm Channel Selective Repeaters (canada).pdf
KT-K-T-B1P43B
Internal model: KT-RP150-B2-G90-P43
- VHF 147–149 MHz uplink / 161–163 MHz downlink, 13.45 MHz duplex spacing
- Asymmetric gain — 85 ± 3 dB uplink, 90 ± 3 dB downlink — matched to long tunnel runs
- Group delay ≤ 1 µs and IMD ≤ −45 dBc for reliable voice in reverberant tunnels
- Off-air and fibre-coupled variants for continuous in-tunnel coverage
- IP55 enclosure, −5 to +75 °C operation
- Local GUI monitoring via RS232 with power and alarm indication
Verified parameters and datasheet
| Uplink | Downlink | |
|---|---|---|
| Working frequency — uplink | 147–149 MHz (customizable) | — |
| Working frequency — downlink | — | 161–163 MHz (customizable) |
| Duplex spacing | 13.45 MHz (customizable) | — |
| Max bandwidth | 2 MHz (customizable) | — |
| Max output power | +30 ± 2 dBm | +43 ± 2 dBm |
| Max gain | 85 ± 3 dB | 90 ± 3 dB |
| IMD | ≤ −45 dBc | ≤ −45 dBc |
| Delay | ≤ 1 µs | ≤ 1 µs |
| Spurious emissions 9 kHz–1 GHz | ≤ −36 dBm (250 nW) | |
| Spurious emissions 1–12.75 GHz | ≤ −30 dBm (1 µW) | |
| Max RF input level (downlink) | +5 dBm | |
| Min RF input level (downlink) | −70 dBm | |
| Max RF input without damage (downlink) | 10 dBm | |
| VSWR | ≤ 1.5 | |
| Impedance | 50 Ω | |
| Connector | N-Female (DL RF input / UL RF output) | |
| Power supply | AC 220 V | |
| Dimension / weight | 530 × 310 × 175 mm / 30 kg | — |
| Max power consumption | ≤ 200 W total | |
| Operating / storage temperature | −5 to +75 °C | |
| Ingress protection | IP55 | |
| MTBF | ≥ 50,000 hours | |
| Monitoring | Local GUI via RS232; power and alarm indicators | |
| Internal model | KT-RP150-B2-G90-P43 | |
Source file: VHF 150M Off-air Tunnel Coverage Solution.doc
How to read our model numbers
Every model encodes its standard, band, power tier, bandwidth type and coupling form. You do not need a lookup table to read it.
KT-{form}-{standard}-B{band}P{power}{bandwidth}[-{channels}]Trunking (TETRA / DMR / P25 / AM / FM)
KT-{form}-{3GPP band list}{bandwidth}[-{role}][-{BD/SD}][-{SISO/2T2R}]Cellular — the band code implies the generation, so neither standard nor power appears in the model. Bidirectional and MIMO are stated because they are different hardware.
No standard code and no power figure: the band codes give the generations (n28 = 5G NR) and output power is set per project against the regulatory limit for that market. Bidirectional (-BD) and MIMO (-SISO / -2T2R) do appear, because a duplexer and a second RF chain are hardware — omitting them would ship the wrong unit.
Every trunking segment begins with an explicit letter (form, standard, B for band, P for power, C for channels), so position carries no meaning and a model cannot be misread. Multi-band cellular models list full 3GPP band codes (n28, B3, W8 …) rather than a shorthand, because procurement has to confirm the exact bands — and the band code already states the generation, so cellular models carry neither a standard code nor a power figure. Fibre systems add a unit role (-MU master / -RU remote) because the two are different units.
Models already covered by a third-party certificate keep their certified names — renaming them would break the certificate. A full one-page reference covering every code is supplied with the quotation on request.
Tell us the requirement, not the model
Send the band, power tier, bandwidth type, coupling form, channel count and project timeline. If certification is required for your tender, say so — we will tell you what is realistic rather than quoting a lead time we cannot meet.
Full datasheets for every model are available on request.