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JI1FGX/DU9 Amateur Radio Diary, Mindanao, Philippines, IOTA OC-130
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Yesterdays access
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A diary of life in Mindanao.
26/02/27  Philippine NTC Amateur Radio License Examination Question Bank
26/02/20  Package received from JK1SNS
26/02/18  Temporary License Renewal
26/02/14  Satellite Tracking Software SatTrack
26/02/05  Making a Repeater Controller Pert2
26/02/02  CQ on satellite IO-86
26/01/27  Shack & Repeater Controller
26/01/16  Making a Repeater Controller
26/01/16  Making aRotator Interface PCB
26/01/10  Satellite antenna installation
26/01/08 WSJT-X Remote Operation
26/01/07 JTDX Remote Operation
26/01/04  log_reciver_Ver2.6.6
26/01/04  Tailscale VPN software for JTDX_Remote
Making a Repeater Controller Part 2 (2026/02/05)
Video of the repeater controller in action.
Debugging of the repeater controller software and configuration software is complete.
Analog interface boards and digital boards are manufactured by Chinese board manufacturersJLCPCB.I placed an order with .

Repeater controller.
Repeater controller software. 1
Repeater controller touch panel LCD screen.

This is the idle standby screen
Uplink has input signal and downlink is in transmit state

Hanging up.
Even if the uplink is lost, transmission continues for the time set by HANG.
Sending CW ID.
TOT timer to prevent consecutive accesses.
 
Settings screen.
Tap each item to change the value.
TOT 1 minute to 30 minutes
 
Hangup Time
From 0 to 30 seconds
 
CW transmission interval.
You can set it to 1 minute (for testing), 5 minutes, 10 minutes, 15 minutes, or 30 minutes.
 
CW MODE.

There are two modes for CWID transmission: MODE A and MODE B.
MODE A. The CW ID will be sent the first time you access the site after the CWInt time has passed.
MODE B. Sends CW ID periodically at CW Int time intervals

 

Squelch open time
Timer delay to avoid unnecessary transmission due to noise etc.
It can be set from 0 to 50 seconds.
 
CW ID callsign editing screen.
 
Repeater controller settings screen.
The touch panel only allows you to set frequently used items.
The configuration program allows you to edit all parameters and save them to the EEPROM of the repeater controller.

The CPU used was Adruin Mega 2560 Rev3.
849 pesos ($14.4)
 
Mega 2560a with RTC DS3231, DFPlayer, LCD screen with touch panel, and radio interface.
Click to see larger size.
Double-sided board made with KiCAD.

Click to see larger size
 
Analog interface between radio and MPU.
There are four types of audio interfaces:
J5. Audio input from a VOX radio
J6 The mixed audio signal is input to the radio microphone.
J9 CW TONE input from MPU
J10. Voice input for Zello
J13. Voice ID input from MPU
J2 A signal from the radio's squelch circuit.
J1 Squelch signal to MPU.
J3. PTT signal from the MPU.
J4. To the PTT of the radio.

Click to see larger size.
Analog interface board.
 February 2, 2026.   February 14, 2026.