SARA Reference Materials

Follow the links below for better understanding of things and to assist in your design efforts:

Electronic and Physical References / Files

• SARA's Capacitor Reference ~ Disc / Monolythic Markings Guide and Basic Information.
• SARA's Electronics Reference ~ Basic Electronics Materials for Hams.
• SARA's Mathematics Reference ~ Fractional Equivalents and Formulas for Hams.
• SARA's Coaxial Cable Reference ~ Coaxial Cable Characteristics and Stubs.
• Transmission Line Calculations ~ File Download
• Bearing Calculations ~ File Download

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Zumspot Nextion Pi-Star

A couple of SARA members bought 'Zumspot / Nextion Pi-Star Kits' and we are sharing information and links for the setup here. Hamvention 2019 was a good time! Have more fun! Here are some papers and links to get moving with a ZUM spot / Nextion Display / Raspberry Pi 3B.

First, get this document: Ham Radio Outlet's ZUMSPOT 2.4 Nextion Startup Guide and follow their excellent directions, is is simple to get going.. The following links are 'cleaned' and re-shown below for reference.

Pi-Star is great software for digital voice hotspots and repeaters. It can handle DMR, D-STAR, and YSF, as well as P25, NXDN, POCSAG, and some cross modes when used with a multi-mode digital voice modem that supports those modes. Read about it in Playing with Pi-Star by KE0FHS, an additional paper on configuring and using Pi-Star.

• MMDVM Yahoo group: ~ MMDVM Yahoo.
• Pi-Star support Forum: ~ A UK Support Forum.
• Pi-Star Fackbook support group: ~ Pi-Star Facebook Group.
• Pi-Star Wiki: ~ Pi-Star Wiki.
• ZUM Radio Interface Facebook group: ~ ZUM of Facebook.

In general, members found the ZUM spot easy to use.

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Shiawassee County HSMM/BBHN

Highspeed Multimedia [HSMM] ~ Broadband Ham Network [BBHN] efforts are ongoing by individual members (not a 'club' sponsored activiity). Members provide the operating site networking for the club's Field Day activity. Usually three to six stations, each using a computer logging program on the 'linked system' for smooth operation. Networking details are captured here to assist members in keeping things coordinated for ease of setup.

• Shiawassee HSMM-BBHN Efforts ~ What we have been doing.
• Router Setup ~ Details on converting Linksys WRT54G to BBHN.
• Shiawassee HSMM Standard ~ Standards for Shiawassee County BBHN for better linking support.

SARA continues to utilize the BBHN hardware for Field Day logging and linking of the various station positions. It is a great way of keeping things synced up in the field. We have not continued to expand into a 'county-wide' emergency network even though we continue to discuss the topic. We will keep the topic open, but plan or removing some to the olderer data soon.

Raspberry Pi [RPi] ~ References

Raspberry Pi information can be found at:

• RPi Quickstart Guide ~ The Raspberry Pi organizations 'official' guide to get started learning RPi. Great for first time and begining users.
• RPi Projects ~ Many 'project' concepts and implementations.
• RPi Orgs Documentation ~ Documentation on the various RPis.
• RPi Forums ~ A place to voice your questions and expect answers to be provided.
• Index of RPI (MagPi) issues and RPi books (Free). ~ The complete pdf file downloads area for RPi topics (free). Includes Beginners books; Essentials "topic" - where topic is Bash (Command LIn), C, Camera, etc.;
• HackSpace Magazine Issues Page ~ Downloadable Issues of "HackSpace" magazines (Free).
• Genesee County ARC Presentation - April 2018 ~ Microcontroller/Microcomputer Presentation by WB8GUS.

That is a couple of years worth of reading on RPi...GREAT 'FREE Information"! Enjoy.

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Arduino / AD9850 / AD9851 / Si5351 Projects & References

• Arduino / AD9850 VFO Project {SARA page} ~ Take off from BITX-40 to a DDS VFO project.
• RPi / Arduino / Linux Tutorials - Top Tech Boys Site - Great Learning site for beginners.
• Adafruit Web Site - Projects and Tutorials (and purchase parts).

Amateur Packet Reporting System [APRS] Shiawassee County, MI and GPS

• APRS Beginners Guide ~ KC8ETW ~ Project to make small APRS Tracker Boxes.
• u-center Windows (GPS) ~ GPS Development / Evaluation Software.

 

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