TWIN TMA 900
A 900MHz TMA, the TMA2038 has been designed to operate in any 900MHz cellular network and provides excellent noise figure performance with flexible AISG options.
주요특징
- Dual duplexed TMA providing Improved base station sensitivity through excellent noise performance and high linearity
- Hardware and software configuration using AISG "personality" upload
- High reliability with full lightning protection and a fail-safe bypass mode
- AISG and current dump compatible
- Bandwidth 25MHz tunable anywhere in 900MHz band
기술 사양
DOWNLINK (TX) PATH
Passband |
Any 25MHz within 925-960MHz |
Bandwidth |
25MHz |
Return loss |
18dB minimum |
Insertion loss |
0.35dB typical mid band |
EVM |
3% |
Group delay variation |
5ns maximum (200kHz) | 20ns maximum (4MHz) |
Maximum input power with no damage |
200W (average) / 1.6kW (PEP) |
UPLINK (RX) PATH
Passband |
Any 25MHz within 880-915MHz |
Bandwidth |
25MHz |
Nominal gain |
Variable 8 to 16dB (selected via AISG) |
Gain variation over frequency, temperature |
±1dB maximum |
Noise figure |
1.0dB typical (12dB gain)
1.6dB maximum (12dB gain) at band edge |
Return loss |
18dB minimum operating, 12dB minimum in bypass mode |
Insertion loss |
2.0dB typical, 3dB maximum in bypass mode |
Group delay variation |
10ns maximum (200kHz) | 40ns maximum (4MHz) |
Maximum input power with no damage |
+12dBm maximum |
ELECTRICAL
Impedance |
50ohms |
Intermodulation products |
<-153dBc at antenna ports, with 2 x 43dBm TX carriers |
REJECTION
902.5 ANT to BTS 50 - 800MHz |
46dB minimum |
902.5 ANT to BTS 1050 - 2200MHz |
46dB minimum |
902.5 ANT to BTS 2200 - 2750MHz |
26dB minimum |
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 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. |
DC supply voltage |
8.5V to 30V DC, case is DC ground |
DC supply voltage via BTS-RF cable |
Each BTS port powered individually (programmable) |
DC supply current, normal mode |
100 ± 20mA per port (programmable) |
DC supply current, alarm mode |
150 - 300mA per port (programmable) |
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 LNA’s 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. |
AISG version |
2.0 (1.1 optional) |
Supply current, AISG mode |
55mA at 30V, 135mA at 12V |
Power consumption, AISG mode |
1.5W @ 7.5V, 1.8W @ 30V typical |
AISG connector, current rating |
IEC60130-9, < 4A peak, 2A continuous, pin 6 |
Field firmware upgradable |
Yes |
ENVIRONMENTAL
For further details of environmental compliance, please contact Kaelus. |
Temperature range |
-40º to +65ºC | -40º to +149ºF |
Ingress protection |
IP67 |
Lightning protection |
IEC61312-1, RF: ±2kA maximum (10/350us)
AISG: ±0.5kA maximum (10/350us) |
MTBF |
>500,000 (hours) |
Compliance |
EMC:EN301 489, ETSI EN 300 019 class 4.1, RoHS |
MECHANICAL
Dimensions H x D x W |
217 x 239 x 81mm | 8.54 x 9.41 x 3.19in |
Weight |
7.5kg | 16.53lbs |
Finish |
Painted, light grey (RAL7035) |
Connectors |
DIN 7-16 (F) x 4 long shank, AISG (F) x 1 |
Mounting |
Pole/wall bracket supplied with two metal clamps 45-178mm diameter poles |
주문 정보
Part Number |
Description |
x Denotes different internal firmware for different CWA and BTS configurations |
TMA2038F1xV1-1 |
Twin TMA, 900MHz, uplink passband 890 to 915MHz, downlink passband 935 to 960MHz |
TMA2038F2xV1-1 |
Twin TMA, 900MHz, uplink passband 880 to 905MHz, downlink passband 925 to 950MHz |
ELECTRICAL BLOCK DIAGRAM
MECHANICAL BLOCK DIAGRAM