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
7MHz antenna pole (October 16, 2024)
7MHz Dipole Antenna Pole (October 16, 2024)
The 7,21 MHz tilting dipole is mounted at 18 meters on the tower.
On the other side, however, a rope was stretched across the roof of a 2-meter parking lot.
The actual element was 6 meters high.

So we installed a 6m long pipe in the full site area.
The pipe is 6 m long, but it has been raised 1.5 m, making it 7.5 m high.
This made the element edge about 9 meters high.

The 7,21 MHz inclined dipole is mounted at the 18mH of the tower.
However, the opposite side was tied to a rope stretched across the 2m-high roof of the parking area.
In reality, the element was at a height of 6 meters.

To address this, I installed a 6-meter-long pipe in the available space on the property.
Although the pipe is 6 meters long, I raised it by 1.5 meters, making the height 7.5 meters.
As a result, the ends of the element are now approximately 9 meters high.
 
The owner of a nearby tricycle manufacturing plant had a welding machine, so we asked him to install the pipe
The owner of a nearby tricycle manufacturing factory had a welding machine,.
So I asked him to help with installing the pipe.
Click here to watch a video about Tricycle
Click here for the video about the tricycle.
Pipes are welded to rebar.
The neighbor's roof was overhanging the boundary line, so we told them we would cut the tin shingles and they gave us permission to do so.
Since the neighbor's roof extended over the boundary line, I
informed them about cutting the corrugated metal sheet and received their permission.
At first, we planned to drill a round hole just for the pipe, but it was necessary to raise and lower the element.
Cut into squares because of the rope needed.
Initially, I planned to make a round hole just to install the pipe, but I am not sure if that is possible or not.
But since there needed to be a rope for raising and lowering the element, the
I cut it into a square shape.
A 7.5-meter-high pole has been erected.
A 7.5-meter tall pole has been installed.
I had L-angles welded to the pipe receptacles.
I had an L-angle welded to hold the pipe in place.
The pipe is also welded to the wall rebar to hold it in place.
And I had the pipes tied to the roof structure with wire.
The pipe is also held in place by welding it to the rebar in the wall.
Additionally, the pipe was tied to the roof structure with wire.
22mH tower
50MHz 5-ele yagi at the top 18mH
7,21MHz dipole at 18mH as well.
14MHz dipole at 16mH
18MHz dipole at 12mH
24 MHz dipole at 10.5 mH

The horizontal angles are changed, but the launch angle and other factors are ignored because of the close proximity.

The 22-meter high tower: The 22-meter high tower.
At the top, at 18mHs, is a 50 MHz 5-element Yagi.
Also at 18mH is a 7.21 MHz dipole.
At 16mH is a 14 MHz dipole.
At 12mH is an 18 MHz dipole.
At 10.5mH is a 24 MHz dipole.

While the angles are adjusted horizontally,
Since the antennas are close together, factors like the launch angle can be ignored. since the antennas are close together, factors like the launch angle can be ignored.
 
7,21 MHz dipole in the middle
However, the power feed is slightly V-shaped dipole due to the weight of the coaxial, so this should be considered.
The center is a 7.21 MHz dipole.
However, the feedpoint has become slightly V-shaped due to the weight of the However, the feedpoint has become slightly V-shaped due to the weight of the coaxial cable, and
so it needs to be reviewed.
Pipe 1 1/4" 6m is 1000 pesos (2700 yen)
L-angle for reinforcement 500 pesos (1,350 yen)
Installation welding labor cost 500 pesos (1,350 yen) The labor cost is unusually cheap.

A 1 1/4-inch, 6-meter pipe for 1000 pesos ($18.18)
Reinforcement L-angle for 500 pesos ($9.09)
Welding labor cost for installation, 500 pesos ($9.09)
Labor costs in the Philippines are unusually low.
October 15, 2024   October 17, 2024