| English. | Japanese. |
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Yesterday's access. |
| Introduction. | [Lily Diary.】 A diary of life in Mindanao. |
| 25/07/13 | IARU HF Contest  |
| 25/07/10 | Software updates |
| 25/07/08 | DXV500ZS linear amplifier repair |
| 25/07/07 | CQ Machine Program |
| 25/06/21 | LoTW system upgrade |
| 25/06/18 | RG8 for 3.5MHz arrived |
| 25/06/15 | Time setting Ver0.5 |
| 25/06/14 | Drone Habsan ZINO arrives |
| 25/06/12 | Philippine Independence Day |
| 25/06/11 | Algeria 7X2RF QSL card. |
| 25/06/10 | Translation API Program |
| 25/06/09 | DXCC150 award certificate arrived |
| 25/06/08 | AutoCWType_Ver1.4.1 |
| 25/06/07 | Introducing the Shack |
| 25/06/06 | A portrait drawn by ChatGPT. |
| 25/05/26 | Windows full-width/half-width switching. |
| 25/05/17 | OK2ZAW BCD to 16 converter. |
| 25/05/16 | For 3.5MHz Zepp antenna. Stepping motors |
| 25/05/15 | 3.5MHz stepping motor design. |
| 25/05/14 | 3.5MHz tuning coil installed. |
| 25/05/11 | 3.5MHz antenna installation completed. |
| 25/05/03 | JTDX Autonomous Driving Program Ver0.4.3. |
| 25/04/26 | Drone Habsan ZINO. |
| 25/04/25 | Time setting Ver0.3. |
| 25/04/24 | AutoCWType_Ver1.3. |
| 25/04/23 | Preparing for FTDX3000 LCD repair. |
| 25/04/22 | Installation plan for 3.5MHz Zepp antenna. |
| 25/04/21 | AutoCWType_Ver1.1. |
| 25/04/20 | 10,14MHz antenna installation completed. |
| 25/04/19 | JTDX Autonomous Driving Program Ver0.4.1. |
| 25/04/19 | 14MHz antenna pole installed. |
| 25/04/18 | ThinkPad X390 repair completed. |
| 25/04/17 | Search is now possible. |
| 25/04/15 | Preparing the 10MHz dipole. |
| 25/04/12 | Hexbeam Part8. |
| 25/04/06 | My ThinkPad X390 is broken. |
| 25/04/05. | Time setting program. |
| 25/03/31 | JTDX Autonomous Driving Program. |
| 25/03/30 | Automatic log sending from CWType to Hamlog. |
| 25/03/21 | Hexbeam Part 7. |
| 25/03/20 | FreeDV Part 3 First QSO. |
| 25/03/18 | FreeDV Part 2 QSO in the shack. |
| 25/03/16 | Hexbeam Part 6. |
| 25/03/15 | Install FreeDV Part1. |
| 25/03/09 | Hexbeam Part5. |
| 25/03/07 | Hexbeam Part 4. |
| 25/03/05 | 28MHz antenna modification |
| 25/03/01 | FTDX3000 is broken! |
| 25/02/28 | Pileup at 50MHz FT8. |
| 25/02/28 | DXV500ZS linear amplifier repair. |
| 25/02/27 | Tower pipe rebuilding plan. |
| 25/02/26 | Direction to Japan from Ozamiz. |
| 25/02/26 | 28MHz is not available. |
| 25/02/23 | DXV500ZS linear amplifier repair. |
| 25/02/22 | Hexbeam Part 3 |
| 25/02/21 | Hexbeam Part 2 |
| 25/02/18 | 28MHz antenna construction. |
| 25/02/17 | 18,24MHz antenna height construction. |
| 25/02/16 | Z26NS Cosovo. |
| 25/02/14 | 21MHz FT8 |
| 25/02/12 | 7,21MHz antenna repair. |
| 25/02/08 | Operating CW at 21MHz. |
| 25/02/05 | DXV500ZS linear amplifier failure. |
| 25/01/19 | Input Director. |
| 25/01/14 | Temporary license renewal. |
| 7-21MHz Antenna Repair (2025/02/12) | ||
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| The dipoles at 7 and 21 MHz have a high SWR, with SWR of 1.9 at 7 MHz and 1.7 at 21 MHz. I finally managed to get the antenna down under the scorching sun and check it. (It's scorching hot in Ozamiz during the day.) There was nothing particularly wrong with it, but I measured the element length. For some reason the left and right sides were different lengths so I adjusted them.  |
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| The result was SWR 1.592 at 7.020 MHz and SWR 1.5 at 21.110 MHz. When feeding a horizontal dipole with a theoretical impedance of 75 ohms with a 50 ohm coaxial cable, the SWR is about 1.5. The current measured SWR is 1.592, which is close to the theoretical value and is at a level that is acceptable for practical use. The Smith chart value is 75 ohms, so I think it's in good condition. 7MHz value measured with NanoNVA The lowest SWR is at 7.020MHz.   |
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| 21MHz value measured with NanoNVA The center is at 20.960MHz, but this is within the margin of error, so we have left it as it is.   |
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| February 08, 2024 February 14, 2025 |