LAST TIME BUY: 31/12/2021

Designed to be deployed in co-located 1800, 2100 and low band (698-960) systems with wideband antennas the Kaelus TMA2077 provides internal multiplexing in all three bands with gain in the high bands, thereby saving capital expenditure and tower leasing fees.


  • Improved base station sensitivity through gain in the 1800 and 2100 uplink bands
  • Internal duplexing of 698-960MHz signals to be passed to additional ANT ports
  • Internal duplexing of 1800 and 2100MHz bands
  • AISG2.0 compatible, hardware & software configuration using AISG “personality” upload
  • DC/AISG bypass onto ANT 850 main (Optional)
  • Excellent noise figure performance

technical specifications
Band Name18002100
Passband1805 - 1880MHz2110 - 2170MHz
Insertion loss0.6dB typical0.4dB typical
Return loss18dB minimum
Maximum input power200W (average) / 2kW (PEP)120W (average) / 2kW (PEP)
Intermodulation @ antenna port-150dBc, (3rd order) in RX band with 2 x 20W carriers-160dBc maximum, (7th order) in RX band with 2 x 20W carriers
Passband1710 - 1785MHz1920 - 1980MHz
Gain variation±1dB maximum
Return loss18dB min operating, 12dB in bypass
Bypass loss2.5dB typical2.9dB typical
Noise figure1.25dB typical1.35dB typical
Output IP3+24dBm minimum
Maximum input power with no damage+12dBm
low band bypass path
Passband698 - 960MHz
Return loss18dB minimum
Insertion loss0.2dB typical
Maximum input power with no damage120W (average) / 2kW (PEP)
Intermodulation @ antenna port-150dBc maximum with 2 x 20W carriers
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, contact Kaelus for more information.
DC supply voltage7.5 to 30V DC, case is DC ground
DC supply current, normal mode150 ± 15mA per port
DC supply current, alarm mode220 ± 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
Supply current, AISG mode305mA @ 7.5V, 75mA @ 30V typical
AISG connector, current ratingIEC60130-9, 8-pin female ,< 4A peak, 2A continuous, pin 6
Field firmware upgradableYes
autosensing function on ant1 low band port (f01v2-1, aisg mode only)
When a valid AISG signal is applied to either of its BTS ports, the TMA (F01V2) enters AISG mode and applies DC/AISG to the ANT1 LOWBAND port. If a low resistance is detected DC is disconnected from the ANT1 LOWBAND port. The autosensing switch is open in CWA mode and no DC is passed to the ANT1 port.
Mode of operationCurrent draw on ANT1 portAssumption“Autosense + Protection” switch statusComment
CWA modeAnyUnit in CWA modeOpenNo DC will be passed on to ANT1
AISG modeCurrent<4ADevice present or open circuit on ANT1CloseAISG signal (sub-carrier) will be supplied thru to ANT1
AISG modeCurrent >4ADC short circuit or low DC resistance present on ANT1 portOpenAttempts are made periodically to re-connect.
For further details of environmental compliance, please contact Kaelus.
Temperature range-40ºC to +65ºC | -40°F to +155°F
Ingress protectionIP67
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 250 x 95mm | 11.81 x 9.84 x 3.74in (excluding brackets and connectors)
Weight10.5kg | 23.1lbs
FinishPainted, light grey (RAL7035)
ConnectorsRF: DIN 7-16 (F) x 6 long neck
MountingPole/wall bracket supplied with two metal clamps 45-178mm diameter poles
ordering information
Part NumberConfigurationOptional FeaturesConnectors
TMA2077F00V1-1TWIN 2 in / 4 outConfigured with generic personalityDIN 7-16 (F)
TMA2077F01V2-1 TWIN 2 in / 4 outDC/AISG to ANT850 mainDIN 7-16 (F)
TMA2077FxxV1-1TWIN 2 in / 4 outxx denotes customized CWA configurationDIN 7-16 (F)
electrical block diagram
mechanical block diagram