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JC Antenna JCG402LR-2
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JC Antenna JCG402LR-2

JC Antenna | Part: JCG402LR-2

$4.63USD

905-920 MHz LoRa whip from JC Antenna (part JCG402LR-2), a hinged whip that can be run straight or bent.

Austin Mesh

Comments from the Austin Mesh Community

Really nice size, unfortunately it doesn't perform. Avoid.

Links & Resources

Buy from DigiKey ($4.63)
View Datasheet

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Specs

Brand

JC Antenna

Part Number

JCG402LR-2

Frequency

905-920 MHz

Connector Type

SMA Male

VSWR (915MHz)

2.365:1

Category

Portable Antennas

Gain

2 dBi

Length

110 mm

Width

10 mm

Test Results

This page collects 3 independent VSWR tests of the JC Antenna JCG402LR-2, measured firsthand by the Mesh community (KG5HZC). Every nanoVNA sweep is charted below and downloadable as a Touchstone (.s1p) file. Best measured VSWR is 2.08:1 near 940 MHz.

Test #1

Configuration

Ground plane: nonePosition: straight

VSWR Measurements

902MHz

VSWR: 2.710:1

915MHz

VSWR: 2.365:1

928MHz

VSWR: 2.180:1

Resonant point: VSWR 2.135:1 at 933 MHz (101 points measured).

Notes from test

No notes available

Tested By

Tommy Ekstrand, KG5HZC on 2026-07-01

from DigiKey, purchased 2025-05-26

Download .s1p (Touchstone)

Test #2

Configuration

Ground plane: nonePosition: 90 degree bent

VSWR Measurements

902MHz

VSWR: 3.236:1

915MHz

VSWR: 2.640:1

928MHz

VSWR: 2.261:1

Resonant point: VSWR 2.083:1 at 940 MHz (101 points measured).

Notes from test

No notes available

Tested By

Tommy Ekstrand, KG5HZC on 2026-07-01

from DigiKey, purchased 2025-05-26

Download .s1p (Touchstone)

Test #3

Configuration

Ground plane: presentPosition: straight

VSWR Measurements

902MHz

VSWR: 5.590:1

915MHz

VSWR: 4.842:1

928MHz

VSWR: 4.155:1

Resonant point: VSWR 3.218:1 at 950 MHz (101 points measured).

Notes from test

Tested straight on a ground plane.

Tested By

Tommy Ekstrand, KG5HZC on 2026-07-01

from DigiKey, purchased 2025-05-26

Download .s1p (Touchstone)

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