A full band 1900MHz tower mounted amplifier, the Kaelus TMA2035 provides a field upgradeable TMA with BTS compatibility and AISG functionality, a truly future proofed TMA with low noise figure performance.


  • Dual duplexed TMA providing improved base station sensitivity through excellent noise performance and high linearity
  • Hardware and software configuration using AISG “personality” upload
  • High reliability with full lightning protection and a fail-safe bypass mode
  • AISG and current dump compatible
  • High power handling

technical specifications
downlink (tx) path
Passband 1930 - 1990MHz
Insertion loss 0.5dB typical
Return loss 18dB minimum
Maximum input power 300W (average) / 3kW (PEP)
uplink (rx) path
Passband 1850 - 1910MHz
Nominal gain 12dB typical
Gain variation over frequency, temperature ±1dB maximum
Noise figure 1.2dB typical
Return loss 18dB minimum operating, 14dB minimum in bypass
Bypass loss 2.5dB typical
Output IP3 +28dBm typical
Maximum input power with no damage +12dBm maximum
Impedance 50ohms
Intermodulation products -153dBc maximum with 2 x 20W carriers (in RX band)
power supply and alarm (current window alarm mode, default)
Current window alarm mode (CWA) is the default TMA operating mode and can be configured to specific customer requirements. The generic personality (F00V1) is configured so that both channels are independently powered and monitored via the respective BTS port. The BTS port sinks additional current to indicate an alarm state in its uplink path. Normal operating and alarm current values are configured independently and are alterable via a field-loadable personality file.
DC supply voltage 8V to 30V DC, case is DC ground
DC supply Each BTS powered individually (programmable)
DC supply current, normal mode 100 ± 20mA per port (programmable)
DC supply current, alarm mode 180 ± 20mA per port
aisg mode of operation (auto selected on valid aisg 2.0 frames)
AISG signals can be applied to either BTS1 or BTS2 port. The TMA unit switches to AISG mode when valid frames are detected on one of the BTS ports. Both LNA’s take DC power from the port with AISG frames or, if DC is present on both ports, both channels supply equal power to the TMA.
DC supply voltage +8V to +30V DC
AISG version 2.0 (1.1 optional)
Supply current, AISG mode 55mA at 30V, 135mA at 12V
AISG connector, current rating IEC60130-9, 8-pin female, < 4A peak, 2A continuous, pin 6
Field firmware upgradable Yes
For further details of environmental compliance, please contact Kaelus.
Temperature range -40º to +65ºC | -40º to +149ºF
Ingress protection IP67
Lightning protection IEC61312-1, RF: ±5kA maximum (8/20us), AISG: ±2kA maximum (8/20us)
MTBF >700,000 (hours)
Compliance EMC:EN301 489, ETSI EN 300 019 class 4.1, RoHS
Dimensions H x D x W 270 x 73 x 200mm | 10.63 x 2.87 x 7.87in
Weight 6kg | 13.2lbs
Finish Painted, light grey (RAL7035)
Connectors DIN 7-16 (F) x 4 long neck, AISG (F) x 1
Mounting Pole/wall bracket supplied with two metal clamps 45-178mm diameter poles
ordering information
Part Number Configuration Optional Features Connectors
xx Denotes customized CWA configurations
TMA2035F00V1-1 TWIN, 2 in / 2 out Generic CWA configuration DIN 7-16 (F)
TMA2035FxxV1-1 TWIN, 2 in / 2 out BASE MODEL DIN 7-16 (F)
electrical block diagram
mechanical block diagram