TWIN TMA 900
Designed to be used at co-located 850MHz and 900MHz sites, the Kaelus TMA2050 provides rejection of the 850MHz downlink frequencies while amplifying the 900MHz thereby removing the need for external 900MHz filtering.
FEATURES
- Part band GSM900 with rejection below 890MHz, ideal for co-located 900 and 850MHz networks
- Twin 900MHz TMA unit with high linearity and low noise figure performance
- Hardware and software configuration using AISG personality upload
- High reliability with lightning protection and bypass mode
| Passband |
943 – 960MHz |
| Bandwidth |
Up to 17MHz tuned anywhere within 935 – 960MHz |
| Return loss |
18dB minimum |
| Insertion loss |
0.35dB typical |
| EVM |
2% typical / 5% maximum in any 4MHz |
| Group delay variation |
5ns maximum per 200kHz, 20ns maximum per 4MHz |
| Maximum input power with no damage |
200W (average) / 2kW (PEP) |
| Passband |
898 – 915 MHz |
| Bandwidth |
17MHz tuned anywhere within 890 – 915MHz |
| Nominal gain |
13 ± 1dB |
| Gain variation over frequency, temperature |
±0.45dB maximum |
| Noise figure |
1.1dB typical |
| Return loss |
18dB minimum, 12dB minimum bypass mode |
| Insertion loss |
2.5dB typical bypass mode |
| EVM |
in any 4MHz
2% typical / 5% maximum (902 – 915MHz)
6% typical / 10% maximum (898 – 902MHz) |
| Group delay variation |
20ns maximum per 200kHz, 100ns maximum per 4MHz |
| Output IP3 |
+10dBm minimum (3rd order) |
| Maximum input power with no damage |
<12dBm |
| 50 – 890MHz |
50dBc minimum |
| 922.5 – 932.5MHz |
30dBc minimum |
| 1000 – 2200MHz |
30dBc minimum |
| Impedance |
50ohms |
| Intermodulation products |
-153dBc maximum at antenna ports, BTS port with 2 x 43dBm TX carriers |
| DC supply voltage |
+8.5V to +30V DC |
| DC supply voltage via BTS-RF cable |
BTS1 (F00V1: BTS2 does not support DC) |
| DC supply current, normal mode |
250mA typical |
| DC supply current, alarm mode |
135mA (LNA1), 195mA (LNA2) (typical) |
| AISG version |
2.0 (1.1 optional) |
| Supply current, AISG mode |
55mA at 30V, 120mA at 12V typical |
| Voltage drop, BTS to AISG port |
1.1 V maximum |
| AISG connector, current rating |
IEC60130-9, 8-pin female, < 4A peak, 2A continuous, pin 6 |
| Field firmware upgradable |
Yes by AISG download |
| Temperature range |
-40º to +65ºC | -40º to +149ºF |
| Ingress protection |
IP67 |
| Altitude |
2,600m | 8,530ft maximum |
| Lightning protection |
IEC61312-1, RF: ±5kA maximum (8/20us), AISG: ±2kA maximum (8/20us) |
| MTBF |
>1,000,000 (hours) |
| Compliance |
EMC:EN301 489 |
| Dimensions H x D x W |
331 x 300 x 86mm | 13 x 11.8 x 3.38in (excluding brackets and connectors) |
| Weight |
10.5kg | 23.1lbs |
| Finish |
Painted, light grey (RAL7035) |
| Connectors |
DIN 7-16 (F) x 4 long neck |
| Mounting |
Pole/wall bracket supplied with two metal clamps 45-178mm diameter poles |
| PART NUMBER |
CONFIGURATION |
OPTIONAL FEATURES |
CONNECTORS |
| TMA2050F00V1-1 |
TWIN 2 in / 2 out |
DC on BTS1 only |
DIN 7-16 (F) |
MECHANICAL BLOCK DIAGRAM
