QUAD (4BTS/8ANT) TMA 850/1900, BYPASS of AWS & 700L


Designed to be deployed in co-located 850MHz and 1900 networks, the Kaelus TMA2100 provides gain in the 850 uplink and in the 1900 uplink, using independent LNAs per band and per channel. Low loss bypass of AWS and 700L bands for non-intrusive PIM testing are also provided.


  • Improved base station sensitivity through excellent noise figure performance and linearity
  • AISG 2.0 compatible, full software upgradable using AISG “personality” upload
  • DC/AISG passthrough to PCS antenna (port 3)
  • AISG OUT connector disabled when AISG device (SBT equipped antenna) present on Port 3 +B1/+B1
  • One AISG subunit per LNA, 4 in total. All fixed gain.
  • Passive AWS band and 700L band response for feedline/antenna non-intrusive PIM testing

technical specifications
Band Name 850 1900
Passband 869 - 894MHz 1930 -1990MHz
Bandwidth 25MHz 60MHz
Insertion loss 0.5dB typical 0.6dB typical
Return loss 22dB typical
Maximum input power 200W (average) / 2kW (PEP) 200W (average) / 2kW (PEP)
Intermodulation products -155dBc maximum at antenna port with 2 x 20W carriers (in RX band)
Passband 824 - 849MHz 1850 - 1910MHz
Bandwidth 25MHz 60MHz
Gain 13dB
Gain variation ±1dB maximum
Return loss 22dB typical
Bypass return loss 14dB typical
Bypass loss 2.5dB typical
Noise figure 1.2dB typical 1.4dB typical
Output IP3 +26dBm typical +28dBm typical
Maximum input power with no damage +12dBm
aws band non-intrusive pim testing
Passband 1695 - 1780MHz & 2110 - 2200MHz
Insertion loss 0.3dB typical
Return loss 20dB typical
Maximum input power 200W (average) / 2KW (PEP)
700l band non-intrusive pim testing
Passband 550 - 746MHz
Insertion loss 0.3dB typical
Return loss 20dB typical
Maximum input power 200W (average) / 2KW (PEP)
Impedance 50Ohms
power supply and alarm (current window alarm mode, default)
Current window alarm mode (CWA) is the default operating mode and can be configured to specific customer requirements. The TMA2100F03V4 is configured so that both channels are independently powered and monitored via their respective BTS port, 5 or 6. The BTS port sinks additional current to indicate an alarm state in its uplink path. Normal operating and alarm current values are configured independently via a field-loadable personality file. Please contact Kaelus for more information.
DC supply voltage 8.5 to 18V DC, case is DC ground
DC supply Each BTS port powered individually
DC supply current, normal mode 200mA per port typical
DC supply current, alarm mode 300mA per port typical
aisg mode of operation (auto selected on valid aisg 2.0 frames)
AISG signals can be applied to port 5 or port 6. The TMA unit switches to AISG mode when valid frames are detected on either port 5 or 6. All LNAs take DC power from the port with the AISG frames or, if DC is present on both ports, power will be supplied equally between the ports. Each LNA is controlled uniquely by its sub-unit number
DC supply voltage +7.5V to +30V DC
AISG version 2.0 (1.1 optional)
Supply current, AISG mode 500mA @ 7.5V, 135mA @ 30V typical
AISG connector, current rating IEC60130-9, 8-pin female, < 4A peak, 2A continuous, pin 6
Field firmware upgradable Yes (R951022VZA2.0 Rev 2.9.11)
AISG pass through to antenna port Yes
antenna aisg ook + dc
When DC is applied to the TMA2100F03V4 it is quickly switched through to port 3. If an over-current condition is detected, DC & AISG are disconnected from port 3. If DC remains connected to the load at port 3, DC and AISG are disconnected from the AISG OUT 8 pin connector. If DC is disconnected from port 3, DC and AISG are enabled at the AISG OUT 8 pin connector. If a short circuit is detected at the AISG OUT 8 pin connector, DC and AISG are disabled.
Mode of Operation Voltage at
Port 3
Assumption "Autosense + Protection"
Switch Status
AISG or CWA High Device present or
open circuit
Close DC & AISG OOK will be
supplied to port 3.
DC & AISG is removed
from the AISG OUT 8 pin port.
AISG or CWA Low DC short circuit or low
DC resistance
Open DC & AISG OOK will not be supplied to port 3.
DC & AISG are supplied
to the AISG OUT 8 pin port.
For further details of environmental compliance, please contact Kaelus.
Temperature range -40ºC to +65ºC | -40°F to +149°F
Ingress protection IP67
Altitude 3,000m / 10,000ft
Lightning protection IEC61312-1, RF: ±5kA maximum (8/20us), AISG: ±2kA maximum (8/20us)
MTBF >1,000,000 hours
Compliance FCC Part 15 subpart B
Dimensions H x D x W (single unit) 280 x 272 x 283mm | 11.0 x 10.7 x 11.1in excluding brackets and connectors
Weight 25kg | 55.12lbs (excluding bracket)
Finish Painted, light grey (RAL 7035)
Connectors DIN 7-16 (F) x 12 long neck, AISG (F) x 2
Mounting Pole/wall bracket supplied with two metal clamps 45-178mm diameter poles
ordering information
Part Number Configuration Optional Features Connectors
TMA2100F03V4-1A TWIN 2 in / 4 out STANDARD DIN 7-16 (F)
TMA2100F03V4-2A QUAD 4 in / 8 out STANDARD DIN 7-16 (F)
electrical block diagram
mechanical block diagram