30 – 512 MHz
The tactical comms workhorse — full 30 to 512 MHz, one platform.
Exploded view — 3-board PCB stack
Ruggedised enclosure — QSR-VU-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-VU-FEM-EC.
SDR-side Tx/Rx conditioning with switched BPF banks
Front end on the SDR side: switched BPF filter bank, DSA, LNA, driver amplifier, simplex/duplex switch, and limiter. Cleans the SDR's Tx output and conditions Rx signals before the high-power stages. Seven BPF bands cover 30 to 590 MHz.
Key blocks
Tx amplification, directional coupling, Tx/Rx routing
Internal PA driving 5 W out, with a directional coupler for forward/reflected power sensing, and the T/R switch that routes between transmit and receive paths. Drives external PAs up to 100 W for tactical comms.
Key blocks
Final-stage harmonic rejection on the antenna interface
Ten-band switched LPF filter bank handling the full PA output. Suppresses Tx harmonics before they reach the antenna and prevents external PA emissions from violating spectral masks. Sits between the PA and the Tx/Rx antenna.
Key blocks
Contact us for exact lead times
Open-card kits and ruggedised enclosed assemblies for the full V/UHF 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-VU-B1-OC | Enquire |
B2 Tx amplification, directional coupling, Tx/Rx routing | Open Card (OC) | QSR-VU-B2-OC | Enquire |
B3 Final-stage harmonic rejection on the antenna interface | Open Card (OC) | QSR-VU-B3-OC | Enquire |
Full series (FEM) All 3 boards | Enclosed (EC) | QSR-VU-FEM-EC | Enquire |