Tag Archives: LNA 70cm bypass relays

LNAs with built-in bypass relays and RF VOX for 4m 2m 1.25m 70cm bands

In this project we are present a new version of the LNA with bypass relays and RF VOX. This construction is different from the previous version. It has different bypass relays (up to 100 Watts) and RF transceiver control circuit. Area of the application is utilization of the FM transceivers and radio stations (LPD, PMR). It’s possible to use LNA for civil LPD frequency band (433 – 435 MHz) and PMR frequency band (446 MHz) with usage of the feeder and stationary remote antenna. The solutions for other frequency ranges (4m, 2m, 1.25m and 70cm) are also available.

LNA-2m

  • Model: LNA-2m-100W-RF-VOX
  • Active element: PGA-103+
  • RF Power TX mode: 100 Watt (max), 50 Watt RF VOX
  • Gain: 22 dB
  • Noise Figure: < 0.6 dB
  • Output IP3: 38 dBm
  • P input: 21 dBm (max)
  • DC voltage: 12 V
  • DC current: 150 mA
  • Impedance: 50 ohms
  • RF connectors: N-female or SMA-female
  • Dimensions: 110 mm x 43 mm x 20 mm (with connectors)
  • Weight: 0.15 kg

LNA-70cm

  • Model: LNA-70cm-100W-RF-VOX
  • Active element: PGA-103+
  • RF Power TX mode: 100 Watt (max), 50 Watt RF VOX
  • Gain: 20 dB
  • Noise Figure: < 0.8 dB
  • Output IP3: 39 dBm
  • P input: 21 dBm (max)
  • DC voltage: 12 V
  • DC current: 150 mA
  • Impedance: 50 ohms
  • RF connectors: N-female or SMA-female
  • Dimensions: 110 mm x 43 mm x 20 mm (with connectors)
  • Weight: 0.15 kg

Read more »