JI1FGX/DU9 Mindanao, Philippines Amateur Radio Diary IOTA OC-130
English Japanese



Access until yesterday
Introduction. 【【Lily Diary]
Diary of Life in Mindanao

11/12/16 Flooding in Mindanao
11/12/10 examination hall
11/11/22 DW8BXU to appear in CQ magazine
11/11/18 Auto repair shop opened
11/10/16 WJST JT65A mode
11/10/15 CQ de DW8BXU
Car Repair
11/10/14 Aligned measuring instruments
11/09/23 DW8BXU at 21MHz in Europe
11/09/20 Car repair and rice paddies
11/09/01 Europe at 14MHz for a long time.
11/08/30 Delivered radio equipment
11/08/21 Prepared for opening of auto repair shop
11/08/20 WSJT9 Receiving Edition
11/08/13 Automobile repair shop
11/08/06 EME 17-elec. antenna fabrication
11/08/06 New light vehicle repair
11/08/04 New light car
11/07/29 EME 17-elec. antenna fabrication
11/07/28 private automobile mechanic
11/07/23 Gigi's CQ
11/07/19 EME Antenna Considerations
11/07/12 Optira's Dynamo
11/07/10 EME Antenna Considerations
11/07/06 Passenger car breaks down
11/06/20 Radio Repair
11/06/17 rear monitor
11/06/11 Light truck breakdown
11/06/11 29MHz FM repeater failure
11/06/08 7MHz full size RDP production
11/06/07 21MHz antenna production for EU
11/06/06 I enjoyed DX again today!
11/06/06 Purchased 50 KVA generator
11/06/05 DX
11/06/04 Wireless Shop
11/06/03 parts box
11/06/02 Phonepatch using a cell phone, part 2
11/05/30 Phonepatch with cell phone
11/05/29 Our breaker room
11/05/26 Samway DXV500Z arrives
11/05/22 ONAIR for DW8BXU
11/05/21 7MHz full-size dipole
11/05/14 Buy Hyundai Starex
11/05/13 Buy Linear DXV500Z
11/05/13 Backyard construction
11/05/12 Fawn Patch Consideration
11/05/09 About DX8FAR
11/05/07 DX8FAR restart
11/05/07 X520H repair
11/05/06 Radio Shop
11/05/01 Pole tower collapses
11/04/30 DX8FAR repeater begins operation
11/04/29 DX8FAR uplink construction
11/04/28 DX8FAR uplink construction
11/04/25 29MHz DX8FAR beacon
11/04/23 29MHz DX8FAR Repeater
11/04/22 Backyard construction
11/04/21 Antenna installation for 29MHz repeater
11/04/19 Location of 29MHz Repeater
11/04/18 Hamvention in Bohol
11/04/09 Light truck repair
11/04/02 DW8BXU debuted at 21MHz
11/04/01 29MHz Repeater Modification
11/03/31 Call Gigi DW8BXU
11/03/28 Car Repair
11/03/23 29MHz repeater antenna fabrication
11/03/19 Tools
11/03/15 Arrival of 29MHz repeater equipment
11/03/14 FM Broadcast Commercials
11/03/13 Now a KIA truck breaks down.
11/03/13 Repair of light vehicles
11/03/07 Denyo Generator
11/03/06 DX8FAR Mindanao 29MHz Repeater and Advance Notice
11/03/04 NTC in Cebu Island
11/03/01 Life Membership in PARA
11/02/21 Failure of STANDARD C150
11/02/20 Oscilloscope blew smoke.
11/02/11 SWR at 7MHz is wrong.
11/02/04 Truck Repair
11/01/27 TV antenna sequel
11/01/18 Notice, 29MHz Repetitories
11/01/17 Light truck brake repair
11/01/15 Light truck repair
11/01/08 Business is still going on today
11/01/06 Buy a truck
JI1FGX/DU9Study of Antenna for EME（2011/07/19)
The previous antenna had 10 elements, so this time I designed it with 17 elements
This antenna has a boom length of 12 meters!
6wl（wave range)

The aluminum pipe you can buy here is 6 meters long, so you need to connect it in the middle
The last antenna I designed was a 6m boom (3wl)
Stand-alone beam pattern
The lower value is the value for a single column, and the upper value is the value for two rows and two columns.
The following two pictures show the two rows and two tiers
Left-right, top-bottom spacing 2.5λ
This is the beam pattern and gain when two rows and two stages are used
Original data

Click here for the website address
Element Position Length (12,7mm) Length (10mm) Length (8mm) Length (6mm)
Ref 0mm 1020mm 1024mm 1025mm 1030mm
Rad 345mm 980mm (12,7mm) 985mm (12mm) 989mm (12mm) 995mm (12mm)
D 1 520mm 945mm 956mm 964mm 972mm
D 2 1015mm 908mm 918mm 926mm 936mm
D 3 1690mm 891mm 901mm 909mm 919mm
D 4 2505mm 873mm 883mm 891mm 899mm
D 5 3365mm 863mm 873mm 881mm 891mm
D 6 4260mm 855mm 865mm 873mm 883mm
D 7 5165mm 851mm 861mm 869mm 879mm
D 8 6070mm 849mm 859mm 867mm 877mm
D 9 6975mm 846mm 856mm 864mm 874mm
D 10 7880mm 844mm 854mm 862mm 872mm
D11 8785mm 839mm 849mm 857mm 867mm
D 12 9690mm 838mm 848mm 856mm 866mm
D 13 10595mm 838mm 848mm 856mm 866mm
D 14 11410mm 854mm 864mm 872mm 882mm
D 15 12110mm 807mm 817mm 825mm 835mm
Here are the values I recalculated for 50 ohm direct feed

7ele YAGI 144MHz EME
*
144.15
*** wire ***
17
0.0, -0.506, 0.0, 0.0, 0.506, 0.0, 0.006, 0
-0.347, -0.533, 0.0, -0.347, 0.533, 0.0, 0.004531, 0
0.167, -0.47, 0.0, 0.167, 0.47, 0.0, 0.004531, 0
0.664, -0.4635, 0.0, 0.664, 0.4635, 0.0, 0.004531, 0
1.34, -0.452, 0.0, 1.34, 0.452, 0.0, 0.004531, 0
2.153, -0.442, 0.0, 2.153, 0.442, 0.0, 0.004531, 0
3.018, -0.442, 0.0, 3.018, 0.442, 0.0, 0.004531, 0
3.903, -0.4375, 0.0, 3.903, 0.4375, 0.0, 0.004531, 0
4.798, -0.432, 0.0, 4.798, 0.432, 0.0, 0.004531, 0
5.713, -0.4315, 0.0, 5.713, 0.4315, 0.0, 0.004531, 0
6.628, -0.4305, 0.0, 6.628, 0.4305, 0.0, 0.004531, 0
7.533, -0.4315, 0.0, 7.533, 0.4315, 0.0, 0.004531, 0
8.438, -0.426, 0.0, 8.438, 0.426, 0.0, 0.004531, 0
9.333, -0.425, 0.0, 9.333, 0.425, 0.0, 0.004531, 0
10.248, -0.425, 0.0, 10.248, 0.425, 0.0, 0.004531, 0
11.063, -0.4375, 0.0, 11.063, 0.4375, 0.0, 0.004531, 0
11.753, -0.415, 0.0, 11.753, 0.415, 0.0, 0.004531, 0
*** Power supply point ***
1, 1
w1c, 0.0, 1.0
*** concentration constant ***
0, 1
*** auto split ***
400, 40, 2.0, 1
*** Computational Environment ***
2, 15.0, 4, 50.0, 120, 60, 0
Element Position Length (9mm)
Ref 0mm 1066mm
Rad 345mm 1012mm (12mm)
D 1 514mm 940mm
D 2 1011mm 927mm
D 3 1687mm 904mm
D 4 2500mm 884mm
D 5 3365mm 884mm
D 6 4250mm 875mm
D 7 5145mm 864mm
D 8 6060mm 863mm
D 9 6975mm 861mm
D 10 7880mm 863mm
D11 8785mm 852mm
D 12 9680mm 850mm
D 13 10595mm 850mm
D 14 11410mm 857mm
D 15 12110mm 830mm
July 10, 2011   July 29, 2011