39th ARRL and TAPR Digital Communications Conference

September 10-11, 2020, Virtual On-Line

Timing and Location Performance of Recent u-blox GNSS Receiver Modules
John Ackermann, N8UR jra@febo.com
Proceedings Paper

APRS Performance and Limits 
Marco Bersani bermarco72@gmail.com
Proceedings Paper

Improved Layer 2 Protocol
Nino Carrillo, KK4HEJ nino.carrillo@outlook.com
Proceedings Paper

HF Propagation Measurement Techniques and Analyses
Steve Cerwin, WA5FRF steve@cerwinconsulting.com
Proceedings Paper

QMesh: A Synchronized, Flooded Mesh Network Protocol for Voice
Dan Fay, PhD, KG5VBY daniel.fay@gmail.com
Proceedings Paper

A Comparison of Affordable, Self-Assembled Software-Defined Radio Receivers Using Quadrature Sampling Down-Conversion; Caleb Froelich; Dr. Rob Frohne, KL7NA; Konrad McClure; Joshua Silver; Jordyn Watkins, KN6FFS; Rob Frohne rob.frohne@wallawalla.edu
Proceedings Paper

Forward Error Correction and Pictures from Mars
David Garner, N6WY mag_djg@comcast.net
Proceedings Paper

Aids to the presentation and Analysis of WSPR Spots: TimescaleDB database and Grafana
Gwyn Griffiths, G3ZIL gwyn@autonomousanalytics.com, Rob Robinett, AI6VN
Proceedings Paper

Packet Compressed Sensing Imaging (PCSI_: Robust Image Transmission over Noisy Channels 
Scott Howard showard@nd.edu, Grant Barthelmes, Cara Ravasio, Lisa Huang, Benjamin Poag, and Varun Mannam
Proceedings Paper

Digital Signal Processing: I2S in ESP32 
Anthony Le Cren, KF4GOH kb1goh@yahoo.com
Proceedings Paper

Continued Lessons from the RF-Seismograph 
Alex Schwarz, VE7DXW alexschwarz@telus.net
Proceedings Paper

How to Kill Packet-Radio & APRS? Come to Serbia! (Part 3)
Miroslav “Misko” Skoric, YT7MPB  skoric@uns.ac.rs
Proceedings Paper

Build a Mobile Mesh Tower Fleet 
Erik Westgard, NY9D ewestgard@att.net
Proceedings Paper

Current Status Report of FX.25 KISS TNC Development
Kazuhisa Yokota, JN1DFF; Masaaki Yonezawa, JE1WAZ; Aki Yonex yonexaki098@gmail.com
Proceedings Paper