Designed to be used at co-located 700MHz and AWS sites, the Kaelus TMA2042 provides internal diplexing of the two bands. Costly external diplexers and feeders are no longer required, resulting in decreased hardware costs, environmental impact and tower licensing fees.


  • LTE ready
  • AISG 2.0 compatible, fully software upgradable
  • Improved base station sensitivity through gain in both the 700 MHz and AWS uplink bands
  • Excellent noise figure performance
  • Full lightning protection and fail safe bypass mode

technical specifications
Band Name700MHzAWS
Passband728 - 746MHz2110 - 2180MHz
Insertion loss0.4dB maximum, 0.3dB typical0.4dB maximum, 0.25dB typical
Return loss18dB minimum
Maximum input power500W (average) / 5kW (PEP)
Passband698 - 716MHz nominal
699.25 - 714.75MHz guaranteed
1710 - 1780MHz
Gain12dB minimum
Return loss18dB minimum
Bypass return loss14dB minimum
Bypass loss3dB maximum over temperature range
1.5dB typical mid band
2.5dB maximum over temperature range
2dB typical
Noise figure2.2dB maximum
1.3dB typical mid band
1.4dB maximum over temperature range
1.1dB typical mid band
Output IP3+22dBm minimum, +26dBm typical
Maximum input power with no damage+12dBm
uplink rejection
Rejection in TX band80dB minimum
Rejection @ 1700MHz75dBc minimum25dBc minimum
Rejection @ 1800MHz75dBc minimum20dBc minimum
Rejection @ 716.2MHz40dBc minimum80dBc minimum
Rejection @ 697.8MHz40dBc minimum80dBc minimum
Impedance50 Ohms
Intermodulation products-155dBc maximum at antenna port with 2 x 20W carriers
general specifications, measured over 180khz within the pass band
Phase linearity variation, 700MHz band2° maximum, 0.7° typical Uplink
0.2° typical Downlink
Phase linearity variation, AWS band1° maximum, 0.2° typical Uplink
0.2° typical Downlink
Group delay variation, 700MHz band70ns maximum, 50ns typical Uplink
5ns maximum, 1ns typical Downlink
Group delay variation, AWS band5ns maximum, 0.8ns typical
Amplitude variation, 700MHz band0.35dB maximum, 0.2dB typical
Amplitude variation, AWS band0.2dB maximum, 0.01dB typical
power supply and alarm (current window alarm mode, default)
CWA mode is the default TMA operating mode. The BTS port sinks additional current to indicate an alarm state.
DC supply voltage+7.5V to +30V DC, case is DC ground
DC supplyThrough BTS connector
DC supply current, normal mode200 ± 20mA
DC supply current, alarm mode300 ± 30mA
power consumption
Normal operation1.5W @ 7.5V, 6.0W @ 30V typical
Alarm mode4.5W @ 15V typical
aisg mode of operation (auto selected on valid aisg 2.0 frames)
AISG signals can be applied to either BTS port. The TMA switches to AISG mode when valid frames are detected on one of the ports. The TMA unit is DC powered only from the BTS port supplying the AISG frames.
AISG version2.0 (1.1 optional)
Supply current, AISG mode200mA @ 7.5V, 65mA @ 30V typical
Voltage drop, BTS to AISG port 0.2V maximum at 2A
Power consumption, AISG mode1.5W @ 7.5V, 2W @ 30V typical
AISG connector, current ratingIEC60130-9, 8-pin female, < 4A peak, 2A continuous, pin 6
For further details of environmental compliance, please contact Kaelus.
Temperature range-40º to +65ºC | -40º to +149ºF
Ingress protectionIP67
Lightning protectionIEC61312-1, RF: ±5kA maximum (8/20us), AISG: ±2kA maximum (8/20us)
MTBF>700,000 (hours)
ComplianceFCC part 15, ETSI EN 300 019 class 4.1, RoHS
Dimensions H x D x W405 x 385 x 128mm | 15.94 x 15.16x 5.04in
Weight15kg | 33lbs
FinishPainted, light grey (RAL7035)
ConnectorsDIN 7-16 (F) x 3 long neck
MountingPole/wall bracket supplied with two metal clamps 45-178mm diameter poles
ordering information
Part NumberDescription
TMA2042F02V1-1DDual Band 700/AWS single TMA, single mounting bracket,configured with AT&T personality
electrical block diagram
mechanical block diagram