Low Noise Amplifiers are specially designed for satellite earth station receiver front ends and other telecommunications applications. Utilizing state-of-the-art HEMT and MMIC technology, these amplifiers have been designed for both fixed and transportable applications.
  • State-of-the-art HEMT and GaAs MMIC technology
  • Designed for both fixed and transportable applications
  • Cryogenic hot/cold load test

 

Product Details

LX-7000 series X-Band Low Noise Amplifiers are specially designed for satellite earth station receiver front ends and other telecommunications applications. Utilizing state-of-the-art HEMT and GaAs FET technology, these amplifiers have been designed for both fixed and transportable applications. High performance models are available in several gains, with noise temperatures as low as 45 K. Noise temperature specifications are guaranteed over the full bandwidth of the LNA.

Features

  • State-of-the-art noise performance
  • HEMT/GaAs FET design
  • Weatherproof enclosure
  • Internal low-loss input isolator
  • Internal regulator
  • Reverse polarity protection
  • Surge and transient protection
  • High reliability
  • Form ‘C’ alarm

Options

  • Low gain, 50 dB
  • High output power, +20 dBm
  • Interstage transmit reject filter
  • Universal AC input power supply

 

Specifications

Parameter

Notes

Min.

Nom./Typ.+

Max.

Units

Frequency 7.25 7.75 GHz
Gain Standard
Option 1
60
50
63
53
65
55
dB
dB
Gain Flatness Full band
Per 40 MHz
± 0.5
± 0.2
dB
dB
VSWR Input
Output
1.20
1.30
1.25
1.50
:1
:1
Power Output at 1 dB Compression (P1 dB) Standard
Option 2
+15
+20
+17
+21
dBm
dBm
3rd Order Intercept Point Standard
Option 2
+25
+30
+27
+31
dBm
dBm
Group Delay per 40 MHz Linear (Standard)
Parabolic (Standard)
Ripple (Standard)

Linear (Option 7)
Parabolic (Option 7)
Ripple (Option 7)

0.01
0.001
0.1

0.05
0.005
1.0

ns/MHz
ns/MHz2
ns p-p

ns/MHz
ns/MHz2
ns p-p
AM/PM Conversion -5 dBm Output 0.05 °/dB
Gain Stability (Constant Temp.) Short term (10 min)
Medium term (24 hrs)
Long term (1 week)

±0.1
±0.2
±0.5
dB
dB
dB
Gain Stability (Versus temperature) Standard
Option 1

-0.05
-0.04
dB per °C
dB per °C
Maximum Input Power Damage threshold
Desensitization threshold, Std.
Desensitization threshold, Opt. 7B
0
-50
-30
dBm
dBm
dBm
Connectors Input
Output
Power, StandardC
CPR112G Flange
Type N Female
PT02E10-6P-027 (mate supplied)
Power Requirements Voltage, Standard
Current, Standard
Current, Option 2
Option 4, AC Voltage
Frequency
12


15
240
300
90
47
24
270
330
265
63
Vdc
mA
mA
Vac
Hz
Operating Temperature -40
+60
°C

 

For more information and specifications, view the Single Thread X-Band (LX-7000 Series) Datasheet.

Redundant LNA systems minimize system downtime due to LNA failure by providing a spare LNA and an automatic means of switching to the spare upon failure of a primary LNA. A 1:1 system provides one spare LNA for one primary LNA. A 1:2 system provides a spare LNA for either of two primary LNAs. The systems consist of an outdoor plate assembly which mounts at the antenna hub, an indoor control panel and interconnecting control cable.

Plate Assembly Features

  • LX-7000 Series X-band Low Noise Amplifiers (LNAs)
  • High quality dual waveguide/coaxial switches
  • Manual override
  • Waveguide input flanges
  • Output coaxial isolators standard
  • Transmit reject filter(s), input crossguide coupler(s), output coax coupler(s) and offline I/O options available

Redundancy Controller Features

  • 10/100 Base T Ethernet network interface
  • Supports SNMP v1, v2c, and v3
  • Rack-mount chassis, 19" wide, 1¾" (1 RU) high
  • Dual, redundant power supplies
  • Manual or automatic operation
  • Monitors unit currents, external alarms, or both
  • Automatically switches RF path to standby unit when unit failure occurs
  • User-selectable RS-232/-422/-485 serial I/O M&C interface
  • Parallel I/O M&C interface
  • Menu-driven user configuration of all options
  • Front panel graphically depicts switch positions and unit status
  • Worldwide universal AC input capability standard; consult factory for DC prime power
  • Audible alarm
  • CE certified and RoHS compliant; EAR 99

 

Specifications

Parameter

Notes

Min.

Nom./Typ.+

Max.

Units

Frequency Range 7.25 7.75 GHz
Gain Standard LNA
LNA with Option 1
58
48
60
50

dB
dB
Gain Match Between LNAs      1 dB
Gain Flatness Full band
Per 40 MHz
± 0.75
± 0.30
dB
dB
Gain Stability Per day, constant temp
Versus temperature
 
-0.04
± 0.2
dB
dB/°C
VSWR Input, standard
Input, with system option B, Tx filter
Output
1.20
1.25
1.20
1.25
1.30
1.25
:1
:1
:1
Power Output at 1 dB Compression (P1 dB) Standard LNA
LNA with Option 2
LNA with Option 2 & system option D, output couplers
+10
+18
+17
+13
+20
+19
dBm
dBm
dBm
Third Order Output, Intercept Point (OIP3) Standard LNA
LNA with Option 2
LNA with Option 2 & system option D, output couplers
+20
+28
+27
+23
+30
+29
dBm
dBm
dBm
Group Delay per 40 MHz Linear
Parabolic
Ripple
0.02
0.002
0.2
ns/MHz
ns/MHz2
ns p-p
AM/PM Conversion -5 dBm Output 0.05 °/dB
Maximum Input Power Without damage 0
dBm
Connectors RF Input
RF Output
Offline In/Out, Coupler In/Out
CPR112G Waveguide Flange
N Female
N Female
Temperature Range Switch Plate Assy -40
+60
°C

 

For more information and specifications, view the X-Band Redundant LNA Systems (LRX-1000 Series) Datasheet.

Single Thread X-Band (LX-7000 Series) Outline Drawings

Satcom - X-Band Single Thread LNA LX-7000 Series Outline Drawings

 

X-Band Redundant LNA Systems (LRX-1000 Series) Outline Drawings

Satcom - X-Band Redundant LNA LRX-1000 Series Outline Drawing

Satcom - X-Band Redundant LNA LRX-1000 Series Outline Drawing