Orbital MT25/40 VSAT RF Bias Tee Multiplexer Diplexer System Interface
Assures DC block to Rx port and 10 MHz port, Very high Rx port to 10MHz port isolation, no leakage back to rx
MT25/40 Bias-Tee Multiplexer
The Orbital MT25/40 Bias-Tee introduces a System Interface Device (SID) that can be used as 6 different products. The Mux/Tee can be used as a Bias Tee, Diplexer or Mux/Tee to inject DC and/or 10MHz into the L-Band signal. But it can also be installed backwards to strip out DC, 10MHz or both. So it effectively is 6 products in one.
Orbital's Mux/Tee is designed specifically for sensitive Satellite applications. We filter and condition the line between LNB and receiver so your equipment works as it should (as shown in the diagram at the top). The 10MHz goes only to the LNB and is highly isolated from the receiver. Any DC or 10MHz coming from the modem (J-2) is blocked. This ensures that there’s no mixing of DC or 10 MHz between the modem and J-3 or J-4.
Each connector type has an impedance of either 50 or 12 to 24 VDC - 6.0A 75 ohms. Orbital uses 1 of 4 distinct boards to achieve
the appropriate impedance transform between the LNB/BUC interface and Rx/Modem interface:
V1 - 50Ω to LNB/BUC, 50Ω to Rx/modem
V2 - 75Ω to LNB/BUC, 50Ω to Rx/modem
V3 - 75Ω to LNB/BUC, 75Ω to Rx/modem
V4 - 50Ω to LNB/BUC, 75Ω to Rx/modem
Electrical Specifications
L Band
Bandpass: 900 to 2100 MHz
From 2.1 to 3.4 GHz with 0.7 dB insertion loss (maximum)
From 3.4 to 4.2 GHz with 1 dB insertion loss (maximum)
Thru Loss: 0.5 dB maximum
Ripple: ±0.3 dB maximum
Input VSWR: 1.3 : 1 maximum
Output VSWR: 1.3 : 1 maximum
10 MHz
Passband: 1-100 MHz (3 dB down)
Thru Loss: 0.3 dB 10 MHz to LNB port maximum Isolation: >90 dB 10 MHz to Rx port
DC
Filtering: Hash filter, low pass filter
Resistance: 0.132 ohms (average)
Environmental Specifications
Operating Temp: -40 to +60° Celsius
Relative Humidity: Up to 100% condensation and frost
MTBF: >125,000 hours
Orbital_Mux_Tee-130626
Mechanical Specifications
Measurements: Tolerance ±.005 in.
Size (case): 3.425l x 2.55w x 0.88h in.
Size (with conn): 3.425l x 3.8w x 0.88h in.
Weight: 5 oz
Paint / Colour: Blue Anodyzed finish
MIL-STD-595
Mounting holes: 0.200" (5mm)
Accepts standard rackmounting screws: 10/32 or 10/34
RoHs & REACH Compliant
Power Specifications
Input DC Voltage: Passive Device. No
power required
Power Capacity: 12 to 24 VDC - 2.5A,
12 to 48 VDC - 4.0A,
Switching Power Supply
(not included with Mux/Tee)
See: PS1 brochure for North America
PS2 brochure for Global
10MHz Signal Multiplexer and Bias Tee in one device
