JI1FGX/DU9 Mindanao, Philippines Amateur Radio Diary IOTA OC-130
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Access until yesterday
Introduction. 【【Lily Diary]
Diary of Life in Mindanao

24/12/11 CVS conversion software for DXCC listings
24/12/05 Aggregation by country from JTDX
24/12/02 ADIF for one month from JTDX
Programs that create files
24/11/24 CwGet and CwType settings
24/11/24 WWDX Contest
24/11/21 CQ Ham Radio
24/11/20 Call Sign Assignment IOTA Number
24/11/13 IOTA 100 Awards Arrival
24/11/12 LoTW WAZ and DXCC
24/11/04 PLDT Optical Internet
24/10/30 Pile-up of 50MHz FT8
24/10/28 Camiguin Is Crowdfunding
24/10/26 50MHz Yagi feeder
24/10/21 RTTY with MMTTY
24/10/19 Firmware for UV-5K
24/10/17 Antenna group seen by drone
24/10/16 7MHz Antenna Pole
24/10/15 3.5MHz zepp transceiver antenna
24/10/14 Hexbeam Purchase Plan
24/10/13 24MHz dipole addition
24/10/13 50MHz Yagi repair completed
50MHz FT8 first pile
24/10/12 Antenna production for 24 MHz
24/10/09 Trouble with Gmail
24/10/09 The Shack
24/10/07 JO1CRA/7 AS-206
24/10/05 3D2V Rotuma Island IOC-060
24/10/01 Camiguin Island Trailer Video
24/09/30 Uruguay
24/09/29 50MHz antenna installation
24/09/25 Pile up on the caller's side
24/09/19 IOTA 100 Award
24/09/18 IOTA Application
24/09/12 DXCC Application
24/09/11 FT8 in communication with KH8T
24/09/08 50MHz Yagi Antenna
24/08/28 Pile up at FT8
24/08/07 Pile up from FT8EU
24/07/19 JW/WE9G in Svalbard
24/06/27 Purchase of air conditioner for wireless room
24/05/28 antenna switch
24/05/27 MFJ-259B Repair
24/05/10 Completed 3-band antenna
24/05/03 7MHz Dipole
24/04/30 7MHz Domestic
24/04/29 Reopening Project
24/04/04 Repair of FTDX3000
24/03/21 To NTC Cagayan
Amateur Radio Restart Project (2024/04/29)
On January 17, 2016, lightning struck an antenna, damaging all of our radios and home appliances.
My main FTDX3000 broke, so in March 2018 I bought a new FTDX3000 from Tomei Electronics and had them send it to me.

However, the 20mH coconut tree that was used as a tower
It was cut down because it was old and in danger of falling over.

Before they were cut down, the three coconut trees had four full-sized Yagi antennas.
Each band was attached with a fixed beam.
It's only in the Philippines that you can be such a happy free tower owner.
A homemade 14MHz 3-element Yagi antenna installed for Europe.
It flew well.
I attached a 7MHz dipole antenna to the remaining 20m pipe tower.
Because there is a tower at the edge of the site, an inverted V is not possible, so a diagonal dipole is used.
The power supply is a cutting board purchased from a general store.
The handle of the cutting board fits perfectly into the coaxial holder.
I couldn't find a balun for sale, so I followed the advice of JQ2GYU's Sakurai-san and installed three snap cores.
You can find all the electrical wires and parts at UNITRUS in the town of Ozamiz.
To adjust the antenna, pulleys were attached to both ends of the element so that it could be raised and lowered.
This is also advice from JQ2GYU Sakurai, a DXer who owns two crank-up towers.
He also uses pulleys to adjust the low band dipole.
The cutting board of the power supply part is processed so that no force is applied to the shaft connector.
It also serves as an element holder instead of a corrugated insulator.
I adjusted the element length using the NanoVNA-H4, which I bought online in the Philippines for 4,200 pesos (about 11,500 yen).
The lowest SWR was 7.090MHz for 7MHz.
However, 21MHz has the lowest SWR outside the band of 22.140MHz.
When I was searching for information on the Internet, I found something similar on YouTube's "Momo Channel!"
https://youtu.be/LbjRYRG9x9I?t=487

I will write about how to connect a 21MHz antenna to a 7MHz antenna in my diary on May 3rd.
April 04, 2024   April 30, 2024