Designed to be deployed in co-located 700 and 850MHz networks the Kaelus TMA2092 provides gain in the 700MHz uplink plus a low loss 850MHz bypass. Internal duplexing of the two bands minimizes hardware costs and the number of components at the top of the tower.


  • Improved base station sensitivity through excellent noise figure performance and linearity
  • Suitable for 10MHz LTE signal centered on 751/782MHz
  • AISG 2.0 compatible, fully software upgradable using AISG “personality” upload
  • Rejection of the North American public safety band rejection allows co-location

technical specifications
downlink (tx) path
Passband746.5 - 755.5MHz (10MHz LTE signal centered on 751MHz)
Return loss24dB typical
Insertion loss0.25dB typical
Group delay variation10ns typical in C block
Absolute group delay25ns maximum, 5ns minimum in C block
Maximum input power with no damage200W (average) / 2kW (PEP)
Intermodulation @ antenna ports-161dBc typical / <-155dBc maximum in RX band with 2 x 20W carriers
-161dBc typical / <-153dBc 3rd order
uplink (rx) path
Passband777.5 - 786.5MHz (10MHz LTE signal centered on 782MHz)
Nominal gain13dB, adjustment 3dB to 13dB in 1dB steps (controlled by AISG commands)
Gain variation over frequency, temperature± 1dB maximum
Noise figure1.4dB typical @ 13dB gain
Return loss24dB typical @ 13dB gain
22dB typical @ 8dB gain
20dB typical @ 6dB gain
20dB typical @ 4dB gain
14dB typical in bypass
Bypass loss3dB typical
Group delay variation300ns typical in C block
Absolute group delay500ns maximum, 100ns minimum in C block
Output IP3+30dBm typical
Maximum input power with no damage+12dBm maximum
RX in filter rejection 763 – 775MHz50dB minimum
850mhz bypass path
Passband824 - 894MHz
Return loss24dB typical
Insertion loss0.2dB typical
Group delay variation1ns typical in U/L and D/L
Absolute group delay10ns maximum, 2ns minimum in U/L and D/L
Maximum input power with no damage300W (average) / 3kW (PEP)
Intermodulation @ antenna ports-161dBc typical / <-153dBc with 2 x 20W Carriers, 3rd Order
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 generic personality (F00Vx) is configured so that both channels are independently powered and monitored via their respective BTS port. The BTS port sinks additional current to indicate an alarm state in its uplink path. The autosensing switch is open in CWA mode and no DC is passed to ANT1. Normal operating and alarm current values are configured independently via a field-loadable personality file. Please contact Kaelus for more information.
DC supply voltage8.5 to 30V DC, case is DC ground
DC supplyEach BTS port powered individually (programmable)
DC supply current, normal mode185mA maximum. 150mA per port typical
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 ports. 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 the AISG frames or, if DC is present on both ports power will be supplied equally between the ports.
DC supply voltage+8.5V to +30V DC
AISG version2.0 (1.1 optional)
Supply current, AISG mode300mA @ 8.5V, 100mA @ 30V typical
AISG connector, current ratingIEC60130-9, 8-pin female, < 4A peak, 2A continuous, pin 6
Field firmware upgradableYes
AISG pass through to antenna portYes
autosensing function on ant 1 port
When a valid AISG signal is applied to either of its BTS ports, the TMA enters AISG mode and applies DC/AISG to the ANT1 AISGOUT port. If a low resistance is detected, DC/AISG is subsequently disconnected from the ANT1 AISGOUT port. In CWA mode, the autosensing switch is open and no DC is passed to the ANT1 AISGOUT port.
Mode of operationCurrent draw on ANT1 AISGOUT portAssumption“Autosense + Protection” switch statusComment
CWA modeAnyUnit in CWA modeOpenNo DC will be passed on to ANT1 AISGOUT
AISG modeCurrent<4ADevice present or open circuit on ANT1 AISGOUT, Unit in AISG ModeCloseAISG signal (sub-carrier) will be supplied thru to ANT1 AISGOUT
AISG modeCurrent >4ADC short circuit or low DC resistance present on ANT1 AISGOUT portOpenAttempts are made periodically to re-connect. The TMA will operate in AISG mode.
For further details of environmental compliance, please contact Kaelus.
Temperature range-40º to +65ºC | -40º 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 W300 x 205 x 161mm | 11.81 x 8.07 x 6.34in (excluding brackets and connectors)300 x 205 x 335mm | 11.81 x 8.07 x 13.19in (excluding brackets and connectors)
Weight12.5kg | 26.7lbs31.5Kg | 69.45lbs
FinishPainted, light grey (RAL7035)
ConnectorsDIN 7-16 (F) long neck, AISG (F)
MountingPole/wall bracket supplied with two metal clamps 45-178mm diameter poles
ordering information
Part NumberConfigurationOptional FeaturesConnectors
TMA2092F02V3-1TWIN 2 in / 2 outConfigured with generic personalityDIN 7-16 (F)
TMA2092F02V3-2QUAD 4 in / 4 outConfigured with generic personalityDIN 7-16 (F)
TMA2092FxxV1-1 TWIN 2 in / 2 outxx denotes different AISG personalityDIN 7-16 (F)
electrical block diagram
mechanical block diagram