0.5 – 1.8 GHz
Bridging UHF and microwave — one chain across 0.5 to 1.8 GHz.
Exploded view — 3-board PCB stack
Ruggedised enclosure — QSR-EL-FEM-EC
Full Tx/Rx path from SDR through power, filtering, and antenna interface.
Individual boards ship as bare PCBs (Open Card). The full series ships as one ruggedised, enclosed assembly — QSR-EL-FEM-EC.
SDR-side Tx/Rx conditioning with switched BPF banks
SDR-side board: switched BPF filter bank, DSA, LNA, driver amp, simplex/duplex switch, and limiter. Four Rx BPF bands and six Tx LPF bands cover the full 0.5 – 1.8 GHz range.
Key blocks
Tx amplification, coupling, Tx/Rx routing
Internal 5 W PA, directional coupler for forward/reflected sensing, and T/R switch. Drives external PAs up to 50 W for medium-power L-band links.
Key blocks
Final-stage harmonic rejection on the antenna interface
Six-band switched LPF filter bank handling the full PA output. Keeps harmonics out of the antenna feed and meets spectral mask requirements after external PA boost.
Key blocks
Contact us for exact lead times
Open-card kits and ruggedised enclosed assemblies for the full Ext. L family.
Order individual boards as bare PCBs (Open Card), or the full series as a ruggedised enclosed assembly. Contact us for exact lead times.
| Item | Form factor | SKU | Action |
|---|---|---|---|
B1 SDR-side Tx/Rx conditioning with switched BPF banks | Open Card (OC) | QSR-EL-B1-OC | Enquire |
B2 Tx amplification, coupling, Tx/Rx routing | Open Card (OC) | QSR-EL-B2-OC | Enquire |
B3 Final-stage harmonic rejection on the antenna interface | Open Card (OC) | QSR-EL-B3-OC | Enquire |
Full series (FEM) All 3 boards | Enclosed (EC) | QSR-EL-FEM-EC | Enquire |