TB8100 Base Stations/Repeaters

  1. TB8100 – Overview

    The TB8100 is a high performance base station/repeater designed to cope with the harshest of operational environments. Ideal for any application from a simple conventional repeater to advanced TaitNet Quasi Sync and MPT 1327 trunked systems. Featuring remote monitoring and configuration as well as a powerful local control application it is available in 5, 50 and 100W configurations in a range of popular frequency bands.

    The Toughest Portables in the Industry

    The TP9300 is built for rugged conditions. Your people need a radio that won't fail them, no matter what the environment. Every Tait Portable is proven to meet Military Standards 810C, D, E, F, and G. It is IP67 water proof and can survive countless drops onto concrete.

    We've also run over our radio with a tank, dropped it 100 meters, washed it on heavy duty in a dishwasher, and more. The radio survived, and you can see these tests for yourself at our Tait Tough website.

    TB8100 Base Station/Repeater features include:

    • 255 channels with up to 16 CTCSS and DCS sub-audible tones per channel, making it suitable for use as a community repeater without requiring additional equipment*
    • Covers key frequency bands from 136MHz to 941MHz
    • Tone on idle and CWID
    • Several system interface options including Isolated Audio, Isolated Audio E&M, TaitNet MPT Trunked, TaitNet RS232 and TaitNet Ethernet
    • An Ethernet system interface option enables IP management of user's communications system
    • High specification base station/repeater design
    • Fast key-up time of 2ms
    • Monitor 43 alarm parameters remotely
    • Computer Controlled Interface (CCI) protocol allows external computer equipment to remotely monitor and control a TB8100 base station/repeater
    • Power save option ideal for solar sites with receive power as low as 60mA
    • A built-in spectrum analyzer measures received signal levels across the selected band

    * Advanced Profiles option required

    Complete remote operation

    With many remote monitoring options, the TB8100 is ideal for isolated sites. Users can manage more than 150 parameters remotely with TB8100 Service Kit software.

    Advanced diagnostics

    Monitor your entire network from a central location with the TB8100 alarm reporting option. This means you do not need to manually connect to each base station/repeater to check it, minimizing maintenance time and costs.

    Tough design

    Specified to operate continuously at full power, at up to 15,000ft (4,572m) and as high as 140°F (60°C) in temperature. Large heatsinks mean that no spacing is required between base stations/repeaters.

    Excellent RF specifications

    Outstanding specifications for selectivity, sensitivity and adjacent channel interference make the TB8100 ideal for use in high-noise environments.

    Flexible software

    The advanced profiles option gives you precise control over your channel configuration and access to the most advanced base station/repeater features.

    Transportable option

    Utilizing the same reliable software-based platform that has made the TB9100 industry leaders, the lightweight analog and digital transportable repeaters are packaged in ruggedized cases. The transportable repeater includes a lightning arrester and the pelican case is available in multiple colors to suit the application.

    Download the TB8100 specifications sheet (PDF 229 KB) for more detailed information.

    Download the TB8100 Transportable Repeater specifications sheet (PDF 179 KB) for more detailed information.


  2. TB8100 Base Statiosn/Repeaters Specifications

    General Performance

    Operational Frequency PA
    VHF 136-156MHz 136-174MHz
      174-193MHz 174-225MHz
    UHF 380-420MHz 380-520MHz
    700/800MHz 762-776/850-870MHz (Tx) 760-870MHz
      792-824MHz (Rx)  
    900MHz 852-854/928-930MHz 850-960MHz
      896-912MHz (Rx)  
      927-941MHz (Tx)  
    Electronic Switching Range 2% of centre frequency (eg 10MHz @ 500MHz)
    Channel/Network Capacity 255
    Channel Spacing 12.5/20/25kHz
    Channel Increment 0.125kHz
    Dimensions (WxDxH) 19 x 15 x 7in (480 x 390 x 180mm) 4U Rack Space

    Single 5/50W: 45lb (21kg)

    Single 100W: 47lb (22kg)

    Dual 5/50W: 61lb (28kg)

    Operational Temperature -22º to +140ºF (-30º to +60ºC)
    Description Modular base station/repeater/receiver
    System Types Conventional FM, MPT 1327 Trunked, QS2 Simulcast and others
    Frequency Stability ±0.5ppm
    External Reference 10MHz or 12.8MHz  
    Power Consumption*
      12VDC 24VDC 48VDC 240VAC
    Standby (20msReceiver Cycling) 720mA 360mA 170mA  
    Sleep (200ms Receiver Cycling) 400mA 200mA 98mA  
    Deep Sleep (1s Receiver Cycling) 109mA 61mA 31mA  
    Tx @ 5W** 2.6A 1.3A 0.61A 118VA
    Tx @ 50W** 10A 5.4A 2.6A 177VA
    Tx @ 100W** 19.2A 10.3A 4.9A 262VA
    Supply Requirements    
    Mains 88 to 264V (PFC power factor correction)  
    DC 12V, 24V, 48V (Nominal +ve or -ve earth)
    Options Optional coax relay kit 


    Audio Input Types


    600Ω Balanced




    600Ω Balanced


    Monitor Speaker

    Audio Interface Level

    (for nominal 60% deviation)

    Balanced -20 to +10dBm Balanced -20 to +10dBm
    Unbalanced 0.3Vpp to 3Vpp Unbalanced 0.3Vpp to 3Vpp
    Audio Response Bandwidth 300Hz to 3.4kHz
    Audio Response Flat or de-emphasized
    Audio Distortion ≤2% at -70dBm
    Audio Filtering Characteristics

    Flat or de-emphasized

    Full band or speech band

    Sub-audible band only

    Filters can be applied independently to each of the input sources





    ±2.5KHz (NB), ±5KHz (WB)


    Transmit Rise



    Transmit Power Rating

    100W Continuous (programmable from 10W to 100W)

    50W Continuous (programmable from 5W to 50W)

    5W Continuous (programmable from 1W to 5W)

      VHF/UHF 800MHz
    FM Hum and Noise -50dB (NB), 55dB (WB) -50dB (NB), 55dB (WB)

    Radiated Emissions



    -36dBm to 1GHz


    -20dBm to 9GHz


    Sensitivity -119dBm (0.25μV)
    Spurious Responses greater than 100dB
      VHF/UHF 800MHz
    Intermodulation 80dB (NB), 85dB (WB) 80dB (NB), 85dB (WB)
    Selectivity 85dB (NB), 90dB (WB) 79dB (NB), 84dB (WB)
    Ultimate Signal to Noise 45dB (NB), 53dB (WB) 43dB (NB), 47dB (WB)


    *Power consumption is dependent on the status of the licensed power save software features and the selected settings for Tx key time, Rx cycling.

    **Transmit tests without fans operating.

    All parameters are measured in accordance with TIA/EIA 603 procedures unless otherwise specified.