P25 Repeaters
700 MHz channel-selective · +40 dBm fibre-coupled · off-air and BTS-coupled
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.
P25 Repeaters — what the line covers
A P25 product line covering 700 MHz channel-selective units and +40 dBm fibre-coupled configurations in both off-air and BTS-coupled versions. Compatible with P25 Phase 1 and Phase 2. Not third-party certified yet; where a project timeline allows, we can assess the certification path — including FCC-recognised laboratory testing for North American projects.
- 700 MHz
- 800 MHz (806.6–810.6)
+37 dBm · +40 dBm
- Off-air (RF)
- Fibre-coupled (MU/RU)
- BTS-coupled
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-P-B7P37C-16
Internal model: KT-T700RP-CH16-P37-B
- Channel-selective, software programmable, FPGA-based fully digital booster
- Up to 16 channels with per-channel ON/OFF
- Per-channel and per-timeslot automatic gain control; uplink squelch per channel
- Full duplex with high uplink-to-downlink isolation
- Auto-diagnostic and automatic operation
- Local and remote monitoring with automatic fault alarm (optional)
- IP67 / NEMA 4X weatherproof for all-weather installation
Verified parameters and datasheet
| Standard | TETRA / TETRAPOL / P25 (Ph1 and Ph2) | |
| Frequency band | 700 MHz | |
| Output power class | +37 dBm | |
| Channel count | 16 channels | |
| Ingress protection | IP67 / NEMA 4X | |
| Internal model | KT-T700RP-CH16-P37-B | |
Source file: 700MHz P25 +37dBm Channel Selective Repeaters
KT-A-P-B8P40B
Internal model: KT-BDA800-P33
- SDR-based signal processing
- Fibre-coupled system: master unit to remote units over single-mode fibre
- Intelligent internal monitoring for fast fault location
- Low power consumption with efficient heat dissipation
- Battery backup for unattended sites
- Local GUI monitoring via RJ45/RS232; remote monitoring via SMS or GPRS
- Redundant power supply; compact 1U-style enclosure for 19-inch cabinets
Verified parameters and datasheet
| Uplink | Downlink | |
|---|---|---|
| Standard | SDR-based signal processing; compatible with P25 / TETRA / TETRAPOL | |
| Working frequency — uplink | 806.6–810.6 MHz | — |
| Working frequency — downlink | — | 851.6–855.6 MHz |
| Channel number | 8 | |
| Master-unit output power | +33 ± 2 dBm | 0 ± 2 dBm |
| Max gain | 50 dB | 50 dB |
| EVM (error vector margin) | ≤ 12.5% | |
| Passband ripple | ≤ 6 dB | |
| Spurious emissions 9 kHz–1 GHz | ≤ −36 dBm (250 nW) | |
| Spurious emissions 1–12.75 GHz | ≤ −30 dBm (1 µW) | |
| Max number of ROU | 4 × 8 | |
| 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 | |
| Connector | N-Female (DL RF input / UL RF output) | |
| Power supply | AC 220 V ± 60 V, 45–55 Hz | |
| Dimension / weight | 530 × 310 × 190 mm / 28 kg | |
| Max power consumption | 150 W | |
| Operating temperature | −5 to +75 °C | |
| Ingress protection | IP45 | |
| MTBF | ≥ 50,000 hours | |
| Monitoring | Local GUI via RJ45/RS232; remote via SMS or GPRS modem | |
| Unit models | Off-air BDA KT-BDA800-P33 · MU KT-DORP-CH8-MU · RU KT-DORP-CH8-P40-RU-S | |
Source file: APCO - P25 +40dBm Off-air Digital Fiber Optic Repeater
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.