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
Passband 746.5 - 755.5MHz (10MHz LTE signal centered on 751MHz)
Return loss 24dB typical
Insertion loss 0.25dB typical
Group delay variation 10ns typical in C block
Absolute group delay 25ns maximum, 5ns minimum in C block
Maximum input power with no damage 200W (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
Passband 777.5 - 786.5MHz (10MHz LTE signal centered on 782MHz)
Nominal gain 13dB, adjustment 3dB to 13dB in 1dB steps (controlled by AISG commands)
Gain variation over frequency, temperature ± 1dB maximum
Noise figure 1.4dB typical @ 13dB gain
Return loss @ 13dB = 24dB typical
@ 8dB = 22dB typical
@ 6dB = 20dB typical
@ 4dB = 20dB typical
in bypass = 14dB typical
Bypass loss 3dB typical
Group delay variation 300ns typical in C block
Absolute group delay 500ns maximum, 100ns minimum in C block
Output IP3 +30dBm typical
Maximum input power with no damage +12dBm maximum
RX in filter rejection 763 – 775MHz 50dB minimum
850mhz bypass path
Passband 824 - 894MHz
Return loss 24dB typical
Insertion loss 0.2dB typical
Group delay variation 1ns typical in U/L and D/L
Absolute group delay 10ns maximum, 2ns minimum in U/L and D/L
Maximum input power with no damage 300W (average) / 3kW (PEP)
Intermodulation @ antenna ports -161dBc typical / <-153dBc with 2 x 20W Carriers, 3rd Order
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 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 voltage 8.5 to 30V DC, case is DC ground
DC supply Each BTS port powered individually (programmable)
DC supply current, normal mode 185mA maximum. 150mA per port typical
DC supply current, alarm mode programmable range 220 ± 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 version 2.0 (1.1 optional)
Supply current, AISG mode 300mA @ 8.5V, 100mA @ 30V typical
AISG connector, current rating IEC60130-9, 8-pin female, < 4A peak, 2A continuous, pin 6
Field firmware upgradable Yes
AISG pass through to antenna port Yes
autosensing function on ant 1 port (tma2092fxxv3 only)
When a valid AISG signal is applied to either of its BTS ports, the TMA2092F02V3-1 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 operation Current draw on ANT1 AISGOUT port Assumption “Autosense + Protection” switch status Comment
CWA mode Any Unit in CWA mode Open No DC will be passed on to ANT1 AISGOUT
AISG mode Current<4A Device present or open circuit on ANT1 AISGOUT, Unit in AISG Mode Close AISG signal (sub-carrier) will be supplied thru to ANT1 AISGOUT
AISG mode Current >4A DC short circuit or low DC resistance present on ANT1 AISGOUT port Open Attempts are made periodically to re-connect. TMA2092F02V3-1 will operate in AISG mode.
For further details of environmental compliance, please contact Kaelus.
Temperature range -40º to +65ºC | -40º to +149ºF
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 EMC:EN301 489, ETSI EN 300 019 class 4.1, RoHS
Dimensions H x D x W 300 x 205 x 161mm | 11.81 x 8.07 x 6.34in (excluding brackets and connectors)
Weight 12.5kg | 26.7lbs
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 Description
xx denotes different AISG personality
TMA2092F02V3-1 Twin TMA, 700MHz with 850MHz bypass, antenna AISG + DC on ANT main, configured with generic personality
TMA2092FxxV1-1 Twin TMA, 700MHz with 850MHz bypass
electrical block diagram
mechanical block diagram