Adding a Yaesu handheld mic to uBITX

finished uBITX - KB1JPW

Yaesu MH-31 mic <——> Mic cable end (RJ45)  <——> uBITX jack wires to Raduino

Microphone

RJ45 end of Mic cable

Wire color out of RJ45 Jack

Button Function

Pin 8

Black

White – Orange

Down

Pin 7

Blue

Orange

Up

Pin 6

Green

White – Green

Open

Pin 5

Dark Brown

Blue

Mic Ground

Pin 4

White

White – Blue

Mic

Pin 3

Yellow

Green

PTT

Pin 2

Brown

White – Brown

Ground

Pin 1

Red

Brown

Fast

I used these RJ45 jacks with the uBITX to provide a method to connect my handheld mic – http://amzn.to/2IBI36y

Cut the end off and strip enough of the insulation to expose the right lengths of wires to connect to the mic, PTT, and ground on the Raduino connections.  I’ll be doing more testing with the Fast, UP, and Down buttons in the near future.

This will probably get you close enough that you can trace the pinouts for another mic.  I set my multimeter to continuity with tone and tested each wire and corresponding button press.  Technically, you can get by with just the Mic and RJ45 jack wiring but I figured it might save some time for connecting other mics knowing the Yaesu cable pinout mappings.

Panel mount RJ45 cable before modification

Installed jack

Yaesu Mic cable plugged in

Quick connects to be added to the wires to permit removal of the case top without needing a soldering iron or leaving excessive wire length.

 

 

Useful HAM Web Links

A curated and running list of web links I’ve found through research and repeated use. Really, the entire goal is to never to have to remember anything while hopefully highlighting things for others.  I’ll try to break them into categories that make sense and update regularly:

Antennas

12th wave transformer https://www.cv.nrao.edu/~demerson/twelfth/twelfth.htm

144MHz 2m portable Yagi – https://m0ukd.com/homebrew/antennas/144mhz-2m-portable-yagi-vhf-beam-antenna/

40M – 6M End Fed Antenna – http://www.wb5cxc.com/endfedant.html

Antenna Matching calculator – http://www.wb5cxc.com/cal_match.html

DBJ-1 – VHF-UHF Dual-Band J-Pole (might require ARRL membership) – http://www.arrl.org/files/file/Technology/tis/info/pdf/0302038.pdf

Dipole and wire length calculator http://www.ws6x.com/ant_calc.htm

Ground-plane antennas for 144,222, and 420 MHz (might require ARRL membership to access) – https://www.arrl.org/files/file/Technology/tis/info/pdf/ab18-16.pdf

Toroid calculator http://www.coilwindingmachines.eu/engineers_corner/toroidal_calculations.html

Digital Modes – 

*I run Windows/Linux/OSX so I’ll add specific links relevant=pto each OS when I get around to each one*

FT-991/A – specific Digital modes configuration

Ft-991A Digital with USB cable http://www.n1rwy.org/?p=157

VE3SP WSJT-X for FT-991 – https://yaesuft991.blogspot.jp/2016/02/wsjt-x-config-for-ft-991.html

FT-991A WSJT-X config in Windows http://zs1jen.org/WSJT-X_FT991.pdf

FT-991A WSJT-X configuration for Linux https://just.plain.cool/post/2017-01-14-install-wsjtx/

fldigi/NBEMS – To be added

FT8 – To be added

JT-65

JT65 with FT-991 data mode thread on QRZ – https://forums.qrz.com/index.php?threads/ft-991-data-mode-audio-bandwidth-and-offset-experiences-with-jt65.520797/

PSK31 Tips http://www.hamblog.co.uk/top-10-psk31-tips-for-beginners/

Winlink – To be added

WSPR with Pi https://ae5x.blogspot.com/2017/02/wspring-with-raspberry-pi-step-by-step.html

Compiling WSPR on a RPi https://www.george-smart.co.uk/wspr/raspberrypi_wspr/

WSPR Shield and filter https://tapr.org/kits_20M-wspr-pi.html

Zumspot configuration – KEØFHS shares info on setup and use

Emcomm 

ARES – http://www.arrl.org/ares

RACES – http://www.arrl.org/ares-races-faq

NH ARES – http://www.nh-ares.org/

NH ARES/RACES NBEMS – http://www.nh-ares.org/NBEMS/nbems.php

Hillsborough County ARES http://www.ares-hc.com/

Configure RMS Express and Winmor WL2K – https://www.mecklenburgares.org/pdffiles/ConfigRMSWinlink.pdf

Hardware

Hammond case – Mouser – https://www.mouser.com/ProductDetail/Hammond-Manufacturing/1455N1201RD?qs=sGAEpiMZZMsrGrAVj6eTvTcSn4cF7YGRD%252b5v4bqQBAA%3d

Radio parts – restoration and homebrew  http://www.radiodaze.com/

Homebrew/kits

QRP kit lists https://www.qrparci.org/links/qrp-kits-bits-and-supplies

arduino power and swr http://www.qsl.net/on7eq/projects/arduino_pwr_swr.htm

Arduino SWR meter http://kk5jy.net/swr-meter-v1/

Sainsmart Manual Antenna Tuner package instructions – https://www.scribd.com/document/344305820/SainSmart-Antenna-Tuner-Manual-pdf

Comments on the Chinese ATU – https://m1kta-qrp.blogspot.com/2014/05/comments-on-chinese-atu.html

Pine Board radio project  https://heilsound.com/amateur-radio-post/the-pine-board-project/

Teensy SDR http://pa0rwe.nl/?page_id=459

Homebrewing links http://www.w1wc.com/homebrewing/

Frog Sounds QRP https://on7dq.blogspot.com/2016/05/frog-sounds-qrp-cw-kit-build.html?m=1

Frog Sounds QRP kit – manual (hard to find quickly at times) Always verify your board against the schematic to before assembling these – http://www.lxqqfy.com/files/Frog%20Sounds%20V3.pdf

Logging

LoTW https://lotw.arrl.org/lotwuser/default

Operating

RST Standards http://www.zerobeat.net/qrp/rststandard.html

Signal identification – https://www.sigidwiki.com/wiki/Signal_Identification_Guide

Shack grounding http://kc.flexradio.com/KnowledgebaseArticle50426.aspx

Propagation 

solar report http://www.hamqsl.com/solar3.html

PSK automatic propagation report https://www.pskreporter.info/

WSPR – http://wsprnet.org/drupal/

QSL Bureaus

AMSAT (Worldwide)

ARRL – Incoming (U.S.)

ARRL – Outgoing (U.S.)

 eQSL  https://eqsl.cc

Radios

Yaesu FT-991A

https://yaesu.com/indexVS.cfm?cmd=DisplayProducts&ProdCatID=102&encProdID=490C4A71118AD0F4E825E89D821B73BB&DivisionID=65&isArchived=0

Kenwood TH-D74A

http://www.kenwood.com/usa/com/amateur/th-d74a/

Manual – http://www.kenwood.com/usa/Support/pdf/TH-D74A_D74E.pdf

http://www.va2pv.com/kenwood-d-star-radio-th-d74

uBITX

http://www.hfsignals.com/index.php/ubitx/

https://groups.io/g/bitx20

http://ubitx.net/

Training 

Find an amateur radio license class http://www.arrl.org/find-an-amateur-radio-license-class

Where to get FEMA student ID – https://cdp.dhs.gov/FEMASID/

FEMA training site – ARES pre-reqs https://training.fema.gov/is/

FEMA NIMS courses http://training.fema.gov/IS/NIMS.asp.