Antenna 2 Info

0072-EX-PL-2014 Text Documents

MIT Lincoln Laboratory

2014-01-24ELS_145049

                        VGL1/L2PNRRKIT
                                      Technical Product Data
Features
•   Re-Radiating Amplifier with Power Supply
       Excellent Gain Flatness

•   Optional Mounting Kit Hardware
        Re-Radiating Amp Mount

•   Variable Gain
        Re-Radiating Amp Gain Varies from –3 to +23 dB


Description

The Variable Gain L1/L2 GPS Portable Re-Radiating Kit (VGL1/L2PNRRKIT) is a re-radiating system
that allows re-radiation of the GPS L1 & L2 signals indoors. The VGL1/L2PNRRKIT consists of a re-
radiating amplifier with variable gain, a wall mount plug-in transformer that powers the entire system
and a passive L1/L2 re-radiating antenna. The GPS L1 & L2 signal from the roof antenna is amplified,
adjusted as necessary with the pot range control and radiated indoors. Thus, if a receiver has line of
sight with the re-radiating antenna, it can receive the GPS signal indoors up to 100 feet away.



Re-Radiating Amplifier
                                              0
Electrical Specifications, TA = 25 C
Parameter             Conditions                                         Min    Typ     Max     Units
Freq. Range           Ant – J1                                           1.0            2.0     GHz
In/Out Imped.         Ant, J1                                                   50              Ω
Gain (1)              Ant – J1, Normal Configuration                                            dB
                      Variable Gain Option                               -3             +23     dB
Input SWR             J1 - 50Ω                                                          1.8:1   -
Output SWR            Ant - 50Ω                                                         1.8:1   -
Noise Figure           Ant – J1                                                 3.3     3.5     dB
Gain Flatness         | L1 – L2 | ; Ant – J1                                    0.5     1       dB
Reverse Isolation      J1 – Ant                                          35                     dB
Group delay           τd,max - τd,min : Ant – J1                                        1       ns
Flatness
 (1) For performance plots, see LA20RPDC Data Sheet




REV. A                                             07/11/07                                         1


Re-Radiating Antenna

                                              0
Electrical Specifications, TA = 25 C
Parameter            Conditions                              Min   Typ     Max     Units
Frequency            L1                                            1.575           GHz
                     L2
                                                                   1.227           GHz
Bandwidth                                                                  20      MHz
Impedance                                                          50              Ω
Peak Gain                                                          +3      +3.5    dBic
VSWR                                                                       1.5:1   -
Polarization                                                       RHCP
DC Grounding         Yes (Lightning Protection)                                    -



Mechanical Specifications (Passive L1/L2 Antenna)

Size: Diameter 2.60 in. (66.04 mm) Height: .64 in (16.18mm)
Weight: 4.06 oz. (115 Kg)
Finish: Skydrol Resistant Polyurethane Enamel, Base Iridite per MIL-C-5441
Color: Gloss White #17925 per FED STD-595B
Material: 6061-T6 ALUMINUM ALLOY BASE, THERMOSET PLASTIC
RADOME, UV, ABRASION & SKYDROL RESISTANCE
Connector: N-TYPE FEMALE


Environmental Specifications (L1/L2 Active and Passive Antennas)

Temperature: -67F to +185F (-55C to +85C)

Altitude: 70,000 Feet

Vibration: > 30G’s

Leakage: Hermetically Sealed



Federal and Military Specifications

Design to: FAA TSO-C144, DO-160D, MIL-C-5541, MIL-E-5400, MIL-I-45208A &
MIL-STD-810 and SAE J1455




REV. A                                            07/11/07                             2


Available Options

Re-Radiating Amp System Power Supply Options
  Source Voltage Options            VOLTAGE INPUT                           STYLE
                              110VAC                              Transformer (Wall Mount)
                              220 VAC                             Transformer (Wall Mount)
                              240 VAC (United Kingdom)            Transformer (Wall Mount)
                              Customer Supplied DC 9-32 VDC       Military Style Connector
Re-Radiating Amp Gain Control Options
  Normal Gain                 Gain ≥ 20 dB
  Variable Gain               -3dB to +23dB
Re-Radiating Amp RF Connector Options
  Connector Options                 CONNECTOR STYLE                        CHARGE
                              Type N                              NC
                              Type SMA                            NC
                              Type TNC                            NC
                              Type BNC                            NC




Part Number

                                            VG L1/L2PNRRKIT - S / 110


Gain Option:
       VG =Variable; Blank = Normal


Connector Options:
       N = N type; S = SMA; T = TNC; B = BNC


Source Voltage:
        110 -Transformer, 220 – Transformer, 240 – U.K. Transformer MC – Military Conn. (User
        supplies DC Voltage)




REV. A                                    07/11/07                                           3



Document Created: 2007-07-11 12:14:37
Document Modified: 2007-07-11 12:14:37

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