QMX+ Microphone
About the QMX+ Microphone PCB
QMX+ Microphone is an open source PCB design by jglandorf, published on GitHub. It is a 2-layer board measuring 43.2 × 10.2 mm, with 8 components from 8 distinct parts.
By type, the board carries 5 connectors, 2 microphones and 1 switch.
It belongs with the rf & radio designs in this gallery.
From the project
Two Types of Touch Keyers (Paddles) for CW (Morse Code), Tested on the QMX+
Implemented for use with the QMX+ HF transceiver. PCBs designed in KiCAD v9.
The first keyer is a capacitive touch keyer, based on "Penny Paddles", https://www.thingiverse.com/thing:7049323.
The second keyer is a pressure paddle, based on https://vk3il.net/pressure-paddle-v2/.
The capacitive touch paddle is based on KD9AIE's Penny Paddles schematic. It has been slightly modified:
QMX+ Microphone bill of materials (BOM)
8 components, 8 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | PJ-313 | Jack_3.5mm_AliExpress_Horizontal | J1 |
| 1 | 2.54mm | PinHeader_1x02_P2.54mm_Vertical | J2 |
| 1 | 1.27mm | PinHeader_1x02_P2.54mm_P1.27mm_Vertical_SMD | J3 |
| 1 | 2.54mm | PinHeader_1x02_P2.54mm_P1.27mm_Vertical_SMD | J4 |
| 1 | 7.62mm | PinHeader_1x02_P7.62mm_Vertical | J5 |
| 1 | AOM-5024L-HD-F-R | PUI_AOM-5024L-HD-F-R-SMT | MK1 |
| 1 | AOM-5024L-HD-F-R | CUI_CMC-4013-SMT_270 | MK2 |
| 1 | 6mm | SW_PUSH_6mm | SW1 |
QMX+ Microphone design files
The KiCad project lives in the jglandorf/keyer repository on GitHub; these links point at the commit this page was built from.
- LayoutqmxMic.kicad_pcb
- SchematicqmxMic.kicad_sch
QMX+ Microphone: common questions
How big is the QMX+ Microphone PCB?
The QMX+ Microphone measures 43.2 × 10.2 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the QMX+ Microphone?
8 components, from 8 distinct parts. The full bill of materials is listed on this page.
Where can I download the QMX+ Microphone design files?
From the jglandorf/keyer repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the QMX+ Microphone design in my own project?
The repository has no license, so all rights stay with jglandorf. Use it as a reference, and ask the author before reusing the design.
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