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Terrasat C-Band IBUC Intelligent Block Upconverters 5 - 80W

  • Integrated BUC/SSPA
  • 5 - 80W Output Power
  • Superior RF Performance
  • Low terminal cost

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C-Band IBUC Intelligent Block Upconverters 5-80W

The revolutionary Terrasat IBUC has advanced features to take your network to new heights

IBUC Advantages

Integrated BUC/SSPA for higher performance and reliability.

DC power can be supplied via IFL coax or separate DC connector for 5W through 25 W models.

All models available with integral AC power supply or separate DC power supply.

Internal 10MHz reference option automatically switches to internal reference when external reference is not available.

Guaranteed rated output power across the entire operating temperature range and frequency

Low phase noise exceeds IESS308/309 requirements by a minimum of 10 dB.

Embedded web pages provide management for small networks using any web browser.

AGC or ALC circuits hold gain or output level constant.

16dB User-adjustable gain in 0.1 dB steps preserves modem dynamic range.

Advanced user interfaces:
TCP/IP HTTP with embedded web pages.

  • SNMP
  • TELNET through TCP/IP
  • FSK through TX IFL cable.
  • RS232/485 serial port.
  • Handheld terminal.

IBUC offers significant benefits:

  • Low terminal cost
  • Simple design and installation
  • Superior RF performance
  • Simplified 1+1 configuration

New interfaces connect you to the IBUC’s extensive M&C facilities for network management or local access. This powerful new M&C enables:

  • Trouble free commissioning with easy, point-and-click installation/ configuration
  • Continuous verification of performance with time-stamped alarm history.
  • Simplified troubleshooting of terminal faults.

The IBUC comes with a complete set of diagnostic tools including:

  • 10 MHz input detector
  • Input voltage and current monitoring
  • Transmit L-band input level detector
  • Transmit RF output level detector
  • User configurable thresholds and alarms

Unique to the IBUC are internal AGC and ALC functions that satisfy demanding applications with stringent specifications.

L-Band Input
Frequency range
Band 1
Band 2 & 3
Band 4

950 to 1525 MHz
1150 to 1450 MHz
950 to 1750 MHz
VSWR / Impedance1.5:1 max / 50 ohms
ConnectorType N female
Input power detector-55 to -20 dBm
Small Signal Gain (L-Band to RF)
with attenuator set to 0 dB.

68 dB min
71 dB min
74 dB min
75 dB min
77 dB min
78 dB min
79 dB min
80 dB min
Attenuator range16 dB variable in 0.1dB steps
Gain Flatness
Full Band
36 MHz
1 MHz
5W to 50W60W to 80W
& Band 4
3 dB p-p max4 dB p-p max
1 dB p-p max1 dB p-p max
0.25 dB p-p0.25 dB p-p
Gain variation over temperature
Open Loop
5W - 50W
60W - 80W
With AGC
5W - 50W
60W - 80W

3 dB p-p max
4 dB p-p max

1 dB p-p max
1 dB p-p max
RF Output
Band 1 Standard C-Band
Band 2 Palapa/ST1
Band 3 Insat
Band 4 Extended C-Band
5850 to 6425 MHz
6425 to 6725 MHz
6725 to 7025 MHz
5850 to 6650 MHz
VSWR1.5:1 max
Rated output power (P1dB)

+37 dBm min
+40 dBm min
+43 dBm min
+44 dBm min (Ext C +43.5dBm)
+46 dBm min
+47 dBm min
+47.8 dBm min
+49 dBm min
IMD3 (2 carriers, 30kHz apart, 9dB BO/carrier)-32 dBc max
Level stability with ALC± 0.5 dB
Output power detector rangeRated power to -20 dB
Power reading accuracy± 1.0 dB max.
SpuriousComplies with EN 301 443
SSB Phase Noise
External Reference
-120 dBc/Hz
-35 dBc/Hz
-130 dBc/hz
-70 dBc/Hz
-143 dBc/hz
-80 dBc/Hz
-152 dBc/hz
-90 dBc/Hz
-155 dBc/hz
-100 dBc/Hz
-155 dBc/hz
-110 dBc/Hz
External Reference (multiplexed on TX IFL)
Frequency10 MHz
Level-12 to +3 dBm
Local Oscillator
LO Frequency
Band 1
Band 2
Band 3
Band 4

7375 MHz
7875 MHz
8175 MHz
7600 MHz
Operating temperature-40°C to +55°C
Relative humidity100% condensing
Altitude10,000 ft., (3,000m) ASL
495mm x 254mm x 216mm
Weight30 lbs
13 kg
Name X