k3ng/k3ng_antenna_tuner

Arduino-based Automatic Amateur Radio Antenna Tuner

k3ng_antenna_tuner's Issues

Tune line (high = tune, low = stop tuning)

Reads SWR when signal comes down antenna but TX isn't on

Tuning line (high while in tune)

Debug-Log "Range: ..." displays incorrect value

Hi guys,

I stumbled on something that looks like a bug to me. We use a homebrew electronics that my students build. Its works with a yaesu G5500 rotator, that uses the potentiometer for azimuth and elevation control. So we configured rotator_settings.h accordingly:

//  a value of 1 is approximately 0 volts, a value of 1024 is approximately 5 volts (or 3.3 volts on some boards)
#define ANALOG_AZ_FULL_CCW_EEPROM_INITIALIZE 0 
#define ANALOG_AZ_FULL_CW_EEPROM_INITIALIZE 902    //Our max-value measured values when put through the 10-Bit ADC of the Arduino
#define ANALOG_EL_FULL_DOWN_EEPROM_INITIALIZE 0
#define ANALOG_EL_FULL_UP_EEPROM_INITIALIZE 902

Also we defined the starting positions and the max. rotation capability. When we use the software, the potentiometer -reading for AZ an EL works fine, but the Debug-Log always shows the default vaule. Example:

debug: 	2021.10.08.01		Uptime:9		GS-232A
	AZ:IDLE  Q:-  AZ:300  AZ_raw:300  Analog:274  Range:**1-1023**  Start:180  Rotation_Capability:450  Raw_Az_Range:180-630  AZ_Speed_Norm:253  Current:253  Offset:0.00
	EL:IDLE  Q:-  EL:48  EL_Analog:274  Range:**1-1023**  EL_Speed_Norm:253  Current:253  Offset:0.00
	CONFIG_NOT_DIRTY

When I change the values for the Rotation_Capability is also does not change the output of the debug-log.

If I made an error with the configuration please let me know. Thank you guys for maintaining this cool software! We hope to get it up and running until december for our ARISS - contact. The students like this project very much and we could learn a lot about electronics so far.

Greetings from Germany
J.

Option to use Shift register output expanders

What is the status of the project.
No more updates since 2023.10.10
I hope all is well.
I am trying to figure out how to modify the program with the option using 3 UCN5841 shift register 8 bit relay drivers.
Hardware relay test with UCN5841 is okay.
And the M command does start some tuning activity .
The goal is to repair and save a SGC230 tuner that had all IC's blown up by severe over voltage 230V AC on the 12VDC... All IC replaced but the 68HC11 CPU is dead too, no firmware can be found. So this excellent software K3NG Anthony Good can possible be used in the SGC230. So far I can drive the relay's again the manual tune does start relay switching again.
I did modify the Process_command_buffer part.
But more work needed on the configuration of L and C .It all seems very modular programmed. Also K3NG tuner is not a C-L-C PI network type. The SGC230 has 6 input C , 8 air coils and 5 HV output C. A total of 19 relay control lines to drive 24 relays , 7 relays are double to provide higher contact voltage . Studying this software is very interesting modular but not easy to read for me.
I took me even long to find out that the serial monitor has to be set in NL + CR before commands work...

Automatic antenna switching based on band

Example: antenna matrix – ON7EQ.

Requested by Sam, ZS6SAM

Antenna Analyzer functionality

Requested by Aravind Balasubramanian VU2ABS

Icom support

Example: antenna matrix – ON7EQ.