TWIN DIPLEXER 3GSM850-GSM900
Kaelus rack mounted filter assemblies provide the ability to install commonly used filter configurations into a 19" rack making installation easy and minimising rack space requirements. The CA911 combines part band 3GSM850 and part band GSM900 technologies into a single feeder in a simple twin package.
주요특징
- Combines TX/RX of GSM900 and 3GSM850 BTS to one feeder
- Provides rejection of GSM900 frequencies for 3GSM850 downlink
- Main and diversity filters
- Provides rejection of 3GSM850 frequencies for GSM900 uplink
- Low Passive IM performance
- 19" rack mounted, front or rear mounting
기술 사양
| Passband 3GSM850 Tx band |
880.0 - 889.7MHz |
| Passband 3GSM850 Rx band |
835 - 844.7MHz |
| Passband GSM Tx band |
936.9 - 943.6MHz |
| Passband GSM Rx band |
891.9 - 898.6MHz |
ELECTRICAL
| Impedance |
50ohms |
| Insertion loss |
2dB maximum (TX + RX band edge), 1dB typical (TX + RX mid-band)
1.2dB maximum across passband (variation) |
| Return loss |
17dB minimum |
| Group delay variation |
<200 ns |
| Maximum input power |
GSM900 = 120W (average) / 500W (PEP) e.g. 4 x 30W GSM carriers
3GSM850 = 120W WCDMA (with 10dB crest factor) |
| Intermodulation products |
<-155dBc for two tones at any frequency in either TX band at 20W CW each
TX passband = <-97dBc for two tones at any frequency in either TX band at 20W CW each |
| Isolation – 3GSM850 to GSM900 band |
40dB minimum |
| 3GSM850 Tx error vector magnitude (main & diversity) |
< 7.5% (on a carrier with centre frequency in the range 882.2 - 887.2MHz), 6% typical at 25ºC |
| GSM Rx group delay variation (main & diversity) |
< 200 ns |
ENVIRONMENTAL
| For further details of environmental compliance, please contact Kaelus. |
| Temperature range |
0ºC to +50ºC | +32ºF to +122ºF |
| Ingress protection |
IP67 |
MECHANICAL
| Dimensions H x D x W |
440 x 306 x 72.3mm | 17.32 x 12.05 x 2.84inch |
| Weight |
15kg | 33.1lbs |
| Connectors |
DIN 7-16 (F) x6 |
| Mounting |
19inch rack mounting |
주문 정보
| Part Number |
Description |
| CA911F2V10 |
Twin Diplexer 3GSM850-GSM900 |
MECHANICAL BLOCK DIAGRAM