Foxcom PL7620 28 dB RF Line Amplifier
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Product details
The PL7620 is a wideband RF amplifier designed for RF over Fiber and IF signal conditioning within Sat-Light Platinum Series systems. It provides adjustable gain up to 28 dB and supports operation across 10–3000 MHz, enabling controlled RF signal leveling in distributed communication architectures. The module is engineered for integration as either a pre-amplifier or post-amplifier within RF signal chains over long transmission distances. The PL7620 RF amplifier provide controlled RF signal conditioning within RF over Fiber and IF distribution systems where signal strength management directly impacts end-to-end link performance. It is typically deployed in architectures where RF signals must be optimized before optical conversion or restored after long-distance transmission. In system design applications, the module plays a critical role in maintaining consistent carrier-to-noise performance by ensuring the RF input to optical transmitters is within optimal operating range. It is used downstream to restore RF signal levels after fiber transmission, supporting stable system operation across distributed RF networks. The adjustable gain structure enables engineers to fine-tune system performance based on link budget requirements without modifying surrounding RF infrastructure.
Key features
- 10-3000 MHz wideband RF operation support
- Adjustable gain range up to 28 dB
- Input/output RF power monitoring capability
- High output 1 dB compression point at +12 dBm
- Low noise figure performance down to 5 dB
- Output IP3 up to +25 dBm linearity performance
- Integrated SNMP and LCD-based control interface
- Gain stability ±0.25 dB over 24 hours
- Temperature variation control within ±2 dB range
- 50 ohm / 75 ohm impedance compatibility
Specifications
| Part number | PL7620 |
|---|---|
| Series | Foxcom PL7620 |
| Model | PL7620 |
| Type | L-Band Line Amplifier |
| MHz | 10 - 3000 (max. 3000) |
| 10 - 3000 MHz | ±1.5 (max. ±1.75) |
| any 36 MHz | ±0.2 (max. ±0.25) |
| Gain11 | max. 28 dB |
| Gain Stability | ± 0.2 (max. ± 0.25) dB/24hr |
| Gain Slope | 0 (max. +1.0) dB |
| SFDR | 113 dB/Hz2/3 |
| RF SFDR | 111 dB/Hz2/3 |
| CNR [any 36 MHz] | 70 dB |
| Output IP3 (OIP3) | +25 dBm |
| Input/Output Impedance | 50 or 75 Ohm |
| dBm | 16 (max. -15) |
| RF dBm | None, LED limit to -23dBm @ Max Gain |
| -51dBm with 18dB Gain | max. -13dBm @ Min Gain |
| 50 Ohm | -15 (max. -15) dB |
| 75 Ohm 8 | -13 (max. -13) |
| RF Type | min. F, SMA, BNC, N |
| Supply Voltage | Vdc / 12 |
| Supply Current 9 | Amps / 0.5 |
| Relative Humidity | 95% non-condensing |
Frequently asked questions
Where should the PL7620 be placed in an RF signal chain?
It is typically positioned either before the optical transmitter to boost RF drive level or after optical reception to restore signal strength. Selection depends on whether the system requires pre-amplification for link optimization or post-amplification for output levelling.
How does gain adjustment affect system design decisions?
The adjustable gain up to 28 dB enables RF engineers to align signal levels with optical transmitter input requirements without modifying upstream RF sources. This maintains optimal carrier-to-noise performance while avoiding overdrive conditions in RF over Fiber links.
Why is RF power monitoring important in this module?
Integrated input/output RF power monitoring enables real-time verification of signal levels, so that engineers confirm correct operating conditions during commissioning and long-term system operation. This reduces dependency on external test equipment for routine validation.
When is this amplifier preferred over fixed-gain RF modules?
It is preferred in systems where RF levels vary due to distance, split paths, or multi-stage RF over Fiber architectures. The adjustable gain structure provides flexibility to maintain consistent system performance without redesigning the RF chain.
Does Digisat supply and support Foxcom equipment?
Yes. Digisat supplies Foxcom (Global Foxcom) RF-over-fiber links, chassis, repeaters and fiber components with quote-based pricing for teleports, broadcasters, government and defense buyers, and our engineers can help design the fiber IFL, size the optical budget and integrate it with your antennas, LNBs, BUCs and modems.
Need it installed, aligned or supported?
Digisat engineers install, commission and maintain satellite ground systems for government agencies, teleports and broadcasters worldwide. Request installation or engineering support.