Designed for use in co-located AWS and 1900 band networks, the Kaelus TMA2089 provides a state of the art tower mounted amplifier with internal duplexing of the two bands saving in both operational and capital expenditure


  • LTE ready; excellent noise figure performance
  • Provides gain in the AWS uplink path for network balance and optimization
  • AISG 2.0 compatible, fully software upgradable
  • AISG through to antenna port

technical specifications
downlink aws (tx) path
Passband2110 - 2170MHz
Return loss24dB typical
Insertion loss0.25dB typical
Maximum input power with no damage160W (average) / 1.5kW (PEP)
Intermodulation-161dBc typical / <-160dBc maximum in RX band with 2 x 20W carriers
161dBc typical / <-153dBc 3rd order at antenna ports
Group delay specifications per blockABCDEF
Group delay maximum 20ns18ns15ns15ns15ns15ns
Group delay minimum8ns7ns5ns5ns5ns10ns
Group delay variation (typical)4ns2ns1ns1ns1ns1ns
uplink aws (rx) path
Passband1710 - 1770MHz
Nominal gain3dB to 13dB in 1dB steps (controlled by AISG commands)
Gain variation over frequency, temperature± 1dB maximum
Noise figure1.4dB typical, 13dB gain
Return loss@ 13dB = 24dB typical
@ 8dB = 22dB typical
@ 6dB = 20dB typical
@ 4dB = 20dB typical
in bypass = 14dB typical
Bypass loss2dB typical
Output IP3+30dBm typical
Maximum input power with no damage+12dBm maximum
Rejection @ 1700MHz25dBc minimum
Rejection @ 1800MHz25dBc minimum
Group delay specifications per blockABCDEF
Group delay maximum 65ns45ns40ns40ns40ns40ns
Group delay minimum30ns25ns25ns25ns25ns25ns
Group delay variation (typical)20ns 4ns 2ns 2ns 2ns 2ns
1900mhz bypass path
Passband1850 - 1990MHz
Return loss24dB typical
Insertion loss0.25dB typical
Group delay variation4ns maximum
Absolute group delay8ns minimum, 20ns maximum
Maximum input power with no damage160W (average) / 2kW (PEP)
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 (F00Vx) 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 voltage7.5 to 30V DC, case is DC ground
DC supply voltage via BTS-RF cableEach BTS port powered individually (programmable)
DC supply current, normal mode150 ± 20mA per port
DC supply current, alarm mode programmable range220 ± 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 LNAs 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+7.5V to +30V DC
AISG version2.0 (1.1 optional)
Supply current, AISG mode220mA @ 7.5V, 70mA @ 30V typical
AISG connector, current ratingIEC60130-9, 8-pin female, < 4A peak, 2A continuous, pin 6
Field firmware upgradableYes
autosensing function on ant 1 aisgout port (tma2089f02v3 only)
When a valid AISG signal is applied to either of its BTS ports, the TMA2089F02V3-1 enters AISG mode and applies DC/AISG to the ANT 1 AISGOUT port. If a low resistance is detected, DC/AISG is subsequently disconnected from the ANT 1 AISGOUT port. In CWA mode, the autosensing switch is open and no DC is passed to the ANT 1 AISGOUT port.
Mode of operationCurrent draw on ANT 1 AISGOUT portAssumption“Autosense + Protection” switch statusComment
CWA modeAnyUnit in CWA modeOpenNo DC will be passed on to ANT 1 AISGOUT
AISG modeCurrent<4ADevice present or open circuit on ANT 1 AISGOUT, Unit in AISG ModeCloseAISG signal (sub-carrier) will be supplied thru to ANT 1 AISGOUT
AISG modeCurrent >4ADC short circuit or low DC resistance present on ANT 1 AISGOUT portOpenAttempts are made periodically to re-connect. Operates in AISG mode.
For further details of environmental compliance, please contact Kaelus.
Temperature range-40ºC to +65ºC | -40ºF to +149ºF
Ingress protectionIP67
Altitude3,000m | 10,000ft
Lightning protectionIEC61312-1, RF: ±5kA maximum (8/20us), AISG: ±2kA maximum (8/20us)
MTBF>1,000,000 (hours)
ComplianceEMC:EN301 489, ETSI EN 300 019 class 4.1, RoHS
Dimensions H x D x W246 x 223 x 127mm | 9.7 x 8.78 x 5in (excluding brackets and connectors)
Weight10.3kg | 22.7lbs
FinishPainted, light grey (RAL7035)
ConnectorsDIN 7-16 (F) x 4 long neck, AISG (F) x 1
MountingPole/wall bracket supplied with two metal clamps 45-178mm diameter poles
ordering information
Part NumberDescription
XX denotes different personality
TMA2089F02V3-1ATwin TMA, AWS with 1900MHz bypass, AISG OOK+DC autosensing on main ANT1 AISGOUT port
TMA2089FxxV1-1Twin TMA, AWS with 1900MHz bypass
electrical block diagram
mechanical block diagram