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Foxcom Platinum L-Band PL7220T [PL7220T1550] / PL7220R4 RF DownLink Low Input Power, 4dB Optical Budget

Foxcom Platinum L-Band PL7220T [PL7220T1550] / PL7220R4 RF DownLink Low Input Power, 4dB Optical Budget

Foxcom Platinum L-Band PL7220T [PL7220T1550] / PL7220R4 RF DownLink Low Input Power, 4dB Optical Budget

IKtechcorp is the distributor for Foxcom Communications Fiber Optic Systems, a leading manufacturer and supplier of commercial satellite equipment. Foxcom offers a wide range fiber links used in the VSAT, DTH, COTM, Teleport, Cable, and Broadcast industries. Satellite, DTH, VSAT, optical, fiber optic, RF.

• L-Band: 950 – 3000 MHz
• More than 8 Km. distance [15 Km with PL7220T1550]
• Powerful management capabilites via a front panel LCD and rack mounted SNMP
• User control and setting of required IMD level
• LNB power control via LCD or SNMP: +13 or 18 VDC
• Variety of RF and optical connectors
• 1550nm and CWDM ITU Grid laser versions for longer fiber runs and single fiber CWDM multiplexing solutions.

Product Code: Foxcom _PL7220R4

Foxcom Platinum L-Band PL7220T [PL7220T1550] / PL7220R4 RF DownLink Low Input Power, 4dB Optical Budget

Foxcom L-Band PL7220T [PL7220T1550] / PL7220R4 RF Link Low Input Power, 4dB Optical Budget


Foxcom L-Band PL7220T [PL7220T1550] / PL7220R4 RF Link Low input power, 4dB Optical Budget

Foxcom’s Platinum L-band products are designed to meet the increasing demand for modularity and high-performance in a small form factor for superior long-distance transmission. With low  RF input power and wide dynamic range, the link is designed to provide full specification service up to a full 4 dB optical budget with thePL7220R4 receiver.

Utilizing Foxcom’s DigiRF technology, the user has full control of all important functions for setup, operation, and analysis via the front panel LCD or via the associated subrack SNMP capability.

In addition IMizer, an automated adjustable link calibration embedded system enables the user to align the RF links IMD/CNR to specific linearity performances without a two-tone test. Select the desired IMD for the optical transmitter, either locally or remotely, IMizer automatically adjusts the laser drive to meet the IMD requirements. TheIMizer requires the use of a correction factor table above 2.5 GHz. 

Each low profile individual transmitter or receiver can be “hot swapped” in the subrack chassis maintaining a best subsystem uptime capability. Each module contains an individual processor to maximize specification performance at all times under demanding user applications.

The PL7220T  transmitters and the PL7220R4 receiver are designed for chassis mounting. The associated Platinum chassis, model PL7010, has 12 active slots, one main control processor (MCP) slot and two redundant power supplies. No fans are required even under full subrack loading and full LNB powering.


Order Diagram - Options    
Foxcom Gold Series Order Diagram - Options

Foxcom Platinum L-Band PL7220T [PL7220T1550] / PL7220R4 RF DownLink Low Input Power, 4dB Optical Budget


RF Specifications Units Typical


Frequency Range - Bandwidth MHz 950 - 3000   3000
Amplitude Response @ Unity Gain
any 36 MHz





Gain Stability dB/24hr ± 0.2   ± 0.25
Gain slope1 dB 0 -1.5 +1.5
Gain Variation over temperature dB ± 1.5 -2 2
SFDR2 dB/Hz2/3 99    
SFDR3 dB/Hz2/3 91    
DR (Dynamic Range - single channel)4 dB     30
CNR [any 36 MHz]2 dB 53 50 57
Noise Figure (NF)2 dB 20   23
Noise Figure (NF)3 dB 8   11
Output IP3 (OIP3)4 dBm -5    
Group Delay Variation - linear
950 -1200 MHz
1200 - 3000 MHz
Input/Output Impedance Ohm 50 or 75    
1 dB Compression Point [input] dBm -16   -15
Phase noise6 dB None    
Third Order InterModulation [IMD]4 dBc   -55 -40
Input Signal Range - Total Power7 dBm   -55 -25
Maximum input without damage dBm     +15
RF output Signal Range - Total Power
-35 dBm input8
-55 dBm input9

TX/RX Input/Output return loss
50 Ohm
75 Ohm10
Test port [front panel sample port]11 dB -20 -22 -18
RF Connector Type
Test port


Optical Specifications  Typical Minimum Maximum
Optical Wavelength nm 1310/1550/CWDM    
Optical Power Output mW/dBm 2 / 3 1.7/2.5  
Optical Budget / Distance
4dB / 8Km
4dB / 15Km
RX Optical Input Power dBm -1 -2 4
Optical Connector Types Type FC/APC or SC/APC
(E2000 option)
Optical Return Loss dB   -60 -55
Electrical Specifications       
Supply Voltage VDC 12    
Supply Current [TX, no LNB]12 Amps 0.45    
Supply Current [TX with LNB]12 Amps 0.75   0.9
Supply Current (RX) Amps 0.45    
EMI Rating   EMI Rating: FCC part 15 Class A,
CE Mark
Physical Specifications       
Operating Temperature Range ºC   -10 +55
Storage Temperature Range ºC   -45 +85
Relative Humidity   95% non-condensing    
Altitude ft / km

10,000 [3.08 ] operating13
40,000 [12.2] non-operating

Dimensions [D×W×H] ins/cm 12×0.8×4 / 30.5×2×10.2    
Weight lbs./Kg 0.5 / 0.23    
MTBF hours TX 309, 481
RX 359, 057
MTTR hours 0.083    
Shock & vibration   Designed for normal transportation environment per section 514.4 MIL-STD-810E. Designed to withstand 20G at 11 ms [½ sine pulse] in non-operating configuration  
1.   Within the flatness spec
2.   -25 dBm RF input link gain =0  IMD=-40 dBc @ 3 dB opt. budget [0 dBm optical input - max .RF input]
3   -55 dBm RF input link gain = 30 IMD=-50 dBc @ 3 dB opt. budget [0 dBm optical input - min.RF input]   
4.   User adjustable
5..   -25 dBm RF input, IMD=-40 dBc
6.   Direct modulation utilized
7.   Alarm trip point: RED -22 dBm, AMBER -58 dBm
8.   @ 0 dB optical loss
9.   @ 4 dB optical loss
10.   -15 dB @ 950 to 3000 MHz, -11 dB @ 2500 to 3000 MHz
11.   -45 dBm minimum ooutput
12.   under 10ºC add 120 mA [laser heating]
13.   WIth standard adiabatic derating at 2ºC/1000ft. [0.3 Km.]