Wehooper 915 MHz BPF Board

Wehooper | Part: 915MHz BPF

A tiny PCB filter with ipex input/output. Comes with an ipex jumper.

Comments from the Austin Mesh Community

Varying performance, these are 2 of the best out of a set of 16 that I purchased in bulk. These are super useful for tight enclosures like a RAK Unify enclosure or a handheld node that needs some filtering(looking at you G2/Ikoka Stick). These perform fine even at 1w, we've had a few in service on 1w nodes for multiple months now with no degredation.

Specs

Brand

Wehooper

Part Number

915MHz BPF

Filter Type

Bandpass

Connectors

2x u.FL/IPEX

Loss at Meshtastic (906.875 MHz)

1.39 dB

Loss at MeshCore (910.525 MHz)

1.29 dB

Return Loss at Meshtastic

16.1 dB

Return Loss at MeshCore

14.8 dB

3 dB Passband

893.7-938.4 MHz (44.7 MHz)

Dimensions

25 x 15 x 5 mm

Test Results

This page collects 2-port VNA measurements of 2 units of the Wehooper 915 MHz BPF Board, measured firsthand by the mesh community (KG5HZC). Every sweep is charted below and downloadable as a Touchstone (.s2p) file. Measured 3 dB passband is 893.7-938.4 MHz (44.7 MHz wide).

Unit 1

At Mesh Operating Frequencies

Meshtastic (906.875 MHz)

Loss: 1.39 dB

Return loss: 16.1 dB

MeshCore (910.525 MHz)

Loss: 1.29 dB

Return loss: 14.8 dB

3 dB passband: 893.7-938.4 MHz (44.7 MHz wide), minimum loss 1.31 dB at 911.5 MHz.

Out-of-Band Rejection

433 MHz (70cm ham / ISM)48.3 dB

700 MHz (LTE 700)46.5 dB

824 MHz (Cellular uplink)36.8 dB

894 MHz (Cellular downlink)4.2 dB

930 MHz (Pagers)2.4 dB

960 MHz (Fixed links)11.2 dB

1090 MHz (ADS-B)29.2 dB

Notes from test

No notes available

Tested By

Tommy Ekstrand, KG5HZC on 2026-07-11

Sample 2026071101

Download .s2p (902-928 MHz, 101 points)Download .s2p (430-1500 MHz, 101 points)

Unit 2

At Mesh Operating Frequencies

Meshtastic (906.875 MHz)

Loss: 1.49 dB

Return loss: 15.0 dB

MeshCore (910.525 MHz)

Loss: 1.40 dB

Return loss: 14.3 dB

3 dB passband: 893.9-938.5 MHz (44.5 MHz wide), minimum loss 1.40 dB at 922.2 MHz.

Out-of-Band Rejection

433 MHz (70cm ham / ISM)48.1 dB

700 MHz (LTE 700)46.3 dB

824 MHz (Cellular uplink)36.6 dB

894 MHz (Cellular downlink)4.4 dB

930 MHz (Pagers)2.4 dB

960 MHz (Fixed links)11.5 dB

1090 MHz (ADS-B)29.7 dB

Notes from test

No notes available

Tested By

Tommy Ekstrand, KG5HZC on 2026-07-11

Sample 2026071102

Download .s2p (902-928 MHz, 101 points)Download .s2p (430-1500 MHz, 101 points)

Test Results

Unit 1

At Mesh Operating Frequencies

Meshtastic (906.875 MHz)

Loss: 1.39 dB

Return loss: 16.1 dB

MeshCore (910.525 MHz)

Loss: 1.29 dB

Return loss: 14.8 dB

3 dB passband: 893.7-938.4 MHz (44.7 MHz wide), minimum loss 1.31 dB at 911.5 MHz.

Out-of-Band Rejection

433 MHz (70cm ham / ISM)48.3 dB

700 MHz (LTE 700)46.5 dB

824 MHz (Cellular uplink)36.8 dB

894 MHz (Cellular downlink)4.2 dB

930 MHz (Pagers)2.4 dB

960 MHz (Fixed links)11.2 dB

1090 MHz (ADS-B)29.2 dB

Notes from test

No notes available

Tested By

Tommy Ekstrand, KG5HZC on 2026-07-11

Sample 2026071101

Download .s2p (902-928 MHz, 101 points)Download .s2p (430-1500 MHz, 101 points)

Unit 2

At Mesh Operating Frequencies

Meshtastic (906.875 MHz)

Loss: 1.49 dB

Return loss: 15.0 dB

MeshCore (910.525 MHz)

Loss: 1.40 dB

Return loss: 14.3 dB

3 dB passband: 893.9-938.5 MHz (44.5 MHz wide), minimum loss 1.40 dB at 922.2 MHz.

Out-of-Band Rejection

433 MHz (70cm ham / ISM)48.1 dB

700 MHz (LTE 700)46.3 dB

824 MHz (Cellular uplink)36.6 dB

894 MHz (Cellular downlink)4.4 dB

930 MHz (Pagers)2.4 dB

960 MHz (Fixed links)11.5 dB

1090 MHz (ADS-B)29.7 dB

Notes from test

No notes available

Tested By

Tommy Ekstrand, KG5HZC on 2026-07-11

Sample 2026071102

Download .s2p (902-928 MHz, 101 points)Download .s2p (430-1500 MHz, 101 points)