Ongoing Projects

10.1 inches Touch Antenna inteli-switch - Work in progress

Touch Screen Control Panel

Using an intelligent Nextion 10.1 inches capacitive display, I can use its own 8 GPIO for input / output relays control
Of course, having only 8 GPIO and 12 remote relays, I have to design my own CD4028 binary to decimal converter, 3 by 3 for antennas and aux relays. Another pin will be used as TCVR PTT sensing to switch RX /TX antenna, and another one hopefully to interface with rotator control in the future.
Via serial port, the main screen will get messages from cluster, power amplifier and transceiver.Due to display relative latency, probably will have to set TCVR TX delay to 30 milliseconds but will be tested once project is done.

Separate RX and TX Antenna Selection

Short press selects RX Antenna , long press for TX antenna . Also, another 6 AUX relays are used for HF wire beam azimuth change. Using Nextion serial via FTDI, a windows app written in dotnet can control same resources as touch panel, for remote operations.

Coming soon !

IC-7300 contest live audio streaming - icecast

Live score from N1MM broadcast

Latest contest score and thoughts - YODX HF 2021

My recent hamradio articles

Antenna tower

May 2, 2021 No Comments

Have a question? mailto: gabriel@yo8rxp.com My home made antenna tower Goal is to design and build a low height antenna

Read More »

CQ WW CW 2020

December 1, 2020 No Comments

Great operators, Great contest ! Largest H.F. contest. Best of the best yes sir !!! I ran YP0K callsing for

Read More »

YO-DX HF CONTEST

August 21, 2020 No Comments

Hi dear hams. YODX HF contest is due to 29-30 August 2020. Organized by FRR, not perfect as rules definition

Read More »

WPX 2020 CW

June 3, 2020 No Comments

This was my 1’s time WPX contest ever in 25 years as ham radio. More elegant contest than CQWW while

Read More »