SAME BAND COMBINER, 900 TYPE 1 PASSIVE
The Kaelus ACM0008 is a passive combiner used to combine two 900MHz base stations to a single feeder with minimal downlink (TX) Insertion loss. Normally used in conjunction with the Kaelus 900MHz TMA this combiner saves the operator capital and operational expenditure by minimising the number of feeders required.
주요특징
- Combines two 900MHz base stations onto a single feeder with low downlink insertion losses
- Allows the re-use of the existing antenna, 900 TMA's and feeder hardware
- Suitable for indoor or outdoor use, suited for masthead sites with TMA/MHAs
- Variable DC/AISG paths configured in the factory for antenna & TMA control
- RX div ports protected against damage from erroneous Tx connection
기술 사양
PORT NAME |
DOWNLINK (BTS TX/RX) |
UPLINK (BTS RX) |
Passband |
925 - 950MHz |
880 - 905MHz |
Bandwidth |
25MHz |
Insertion loss |
0.45dB maximum at band edge, 0.35dB typical |
5dB maximum at band edge, 4.2dB typical at mid-band |
Return loss |
18dB minimum |
EVM |
3 % maximum across 4MHz |
Group delay variation |
30ns maximum / 20ns maximum across 4MHz |
80ns maximum / 15ns maximum across 4MHz |
Absolute group delay |
70ns maximum / 50ns typical |
200ns maximum / 130ns typical |
Maximum input power |
200W (average) / 1.6kW (PEP) |
N/A |
Intermodulation products |
-150dBc maximum all ports with 2 x 20W carriers |
Attenuation ANT to RX DIV (BTS1 or BTS2) |
40dB minimum TX band |
ELECTRICAL
ISOLATION (ANT1 AND ANT2 TERMINATED)
|
TX BAND |
RX BAND |
BTS2 MAIN to BTS1 RX DIV |
35dB minimum |
35dB minimum |
BTS1 RX DIV to BTS2 MAIN |
35dB minimum |
20dB minimum |
BTS2 MAIN to BTS1 RX DIV |
35dB minimum |
35dB minimum |
BTS2 MAIN to BTS1 MAIN |
35dB minimum |
35dB minimum |
BTS1 RX DIV to BTS2 RX DIV |
35dB minimum |
35dB minimum |
BTS1 RX DIV to BTS1 MAIN |
35dB minimum |
35dB minimum |
BTS1 MAIN to BTS2 RX DIV |
35dB minimum |
35dB minimum |
BTS2 RX DIV to BTS1 MAIN |
35dB minimum |
20dB minimum |
DC / AISG
See ordering information below, other configurations available on request from Kaelus. |
Passband |
0 - 3MHz |
Insertion loss |
1.0 dB maximum |
Return loss |
12dB minimum |
Input voltage range |
± 33V maximum |
DC current rating |
2A maximum |
ENVIRONMENTAL
For further details of environmental compliance, please contact Kaelus. |
Temperature range |
-40ºC to +65ºC | -40ºF to +149ºF |
Ingress protection |
IP67 |
Altitude |
2000m maximum |
Lightning protection |
RF: ±5kA maximum (8/20us), IEC61312-1 |
MECHANICAL
Dimensions H x D x W |
250 x 300 x 86mm | 9.8 x 11.8 x 3.38in |
Weight |
10.5kg | 23.14lbs estimated |
Finish |
Painted, light grey (RAL7035) |
Connectors |
DIN 7-16 (F) x 6 |
Mounting |
Pole/wall bracket supplied with two metal clamps for 45-178 mm diameter poles |
주문 정보
Part Number |
Description |
ACM0008F1V1-1 |
Same band combiner, 900 type 1 passive |
Downlink (TX) passband |
935 - 960MHz |
Uplink (RX) passband |
890 - 915MHz |
DC pass |
ANT1 to BTS1 RX Div, ANT2 to BTS1 Main |
ACM0008F2V1-1 |
Same band combiner, 900 type 1 passive |
Downlink (TX) passband |
925 - 950MHz |
Uplink (RX) passband |
880 - 905MHz |
DC pass |
ANT1 to BTS1 RX Div, ANT2 to BTS1 Main |
SYSTEM DIAGRAM
MECHANICAL BLOCK DIAGRAM