Paradar 868 Mhz SAW Filter

This filter is based on the RFMi SF2137E-2 filter module, which introduces <2.2dB of loss between 867.5MHz and 870.5MHz. Outside of this range, the loss is >35dB – effectively muting other transmitters.

The filter is carefully designed so it’s impedance-matched at 50 ohms, with impedance controlled PCB manufacturing and quality components. As a result, it performs better than most of the generic brands available on eBay.

On Meshtastic and Helium nodes using high-gain antennas in urban areas, this can improve performance by 20-30%.

However, they’re not for everyone and in less congested areas may introduce more loss than benefit. If you have any questions – as always, get in touch: we’re happy to help.

Package contains (SMA or RP-SMA type depending on selection above)

• 1x 868MHz SAW filter, female connections on both ends
• 1x male-male rigid adapter

The filter has a similar response in the forward and reverse direction.