LAST TIME BUY: 31/12/2021

Designed to be used at co-located 700MHz and AWS sites, the Kaelus TMA2043 provides internal diplexing of the two bands. 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
  • Provides gain in the AWS path and bypass to 700MHz frequencies
  • Excellent noise figure performance
  • Full lightning protection and fail safe bypass mode

technical specifications
downlink aws (tx) path
Passband2110 - 2180MHz
Insertion loss0.2dB typical
Return loss18dB minimum
Maximum input power500W (average) / 5kW (PEP)
uplink aws (rx) path
Passband1710 - 1780MHz
Nominal gain12dB minimum
Noise figure1.1dB typical
Return loss18dB minimum operating, 15dB minimum in bypass mode
Bypass loss2.1dB typical
Output IP3+26dBm typical
Rejection @ 1700MHz25dB minimum
Rejection @ 1800MHz14dB minimum
700 mhz bypass
Passband698 - 746MHz
Insertion loss0.2dB typical
Return loss18dB minimum
Maximum input power500W (average) / 5kW (PEP)
Attenuation in AWS band80dB minimum
Intermodulation products-155dBc maximum in Rx band with 2 x 20W carriers
general specifications (measured in 180khz bandwidth)
Phase linearity, 700 & AWS0.02° typical
Group delay variation, 700 & AWS0.8ns typical
Amplitude variation, 700 & AWS0.02dB typical
power supply and alarm (current window alarm mode, default)
CWA is the default TMA operating mode and can be configured to specific customer requirements. The TMA is configured so that each BTS port is individually powered and monitored. Each 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 voltage+7.5V to +30V DC, case is DC ground
DC supplyThrough BTS connector
DC supply current, normal mode100 ± 20mA per port
DC supply current, alarm mode200 ± 30mA per port
power consumption
Normal operation0.85W @ 7.5V, 3W @ 30V typical
Alarm mode3W @ 15V per port typical
aisg mode of operation (auto selected on valid aisg 2.0 frames)
AISG signals can be applied to either BTS0 or BTS1 port. The TMA unit switches to AISG mode when valid frames are detected on one of the BTS ports. The TMA unit is DC powered (common feed for both channels) from the port supplying the AISG frames.
DC supply voltage+7.5V to +30V DC, case is DC ground
AISG version2.0 (1.1 optional)
Supply current, AISG mode200mA @ 7.5V, 65mA @ 30V typical
Voltage drop, BTS to AISG port 1.5V 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 subpart B, Ingress ETSI EN 300 019 class 4.1, EMC: EN301 489 ,RoHS
Dimensions H x D x W284 x 181 x 89mm | 11.18 x 7.14 x 3.5in (excluding brackets and connectors)
Weight9kg | 20lbs
FinishPainted, light grey (RAL7035)
ConnectorsDIN 7-16 (F) x 6 long neck
MountingPole/wall bracket supplied with two metal clamps 45-178mm diameter poles
ordering information
Part NumberConfigurationOptional FeaturesConnectors
Contact Kaelus for options.
TMA2043F03V1-1D TWIN 2 in / 4 outConfigured with AT&T personality,pole mounting bracketDIN 7-16 (F)
electrical block diagram
mechanical block diagram