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



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

10/12/31 TV antenna fabrication
10/12/24 Cute operator
10/12/23 Business and broadcasters consult with us.
10/12/17 Business Antenna Construction
10/12/15 Antennas found in the city
10/12/10 14MHz antenna repair completed
10/12/07 14MHz antenna destruction
10/12/04 Fare8 Club Christmas Party
10/12/04 Gigi Class C Retake
10/11/27 To Manila, PARA's General Assembly
10/11/16 A piglet was born.
10/11/06 Ham Shop Situation
10/11/02 Internet connection is not available
10/10/27 STANDARD C150 repair
10/10/22 Ham Shop Page
10/10/22 power outage
10/09/30 Autumn Condition
10/09/17 DU8UTP Franco.
10/09/12 Challenge PSK 31
10/09/07 Expansion of piggery
10/08/12 Antenna repair for 21 MHz
10/08/07 The 21 MHz antenna is broken.
10/08/06 Backyard and Antenna
10/08/03 sunset
10/07/31 Radio Commercials
10/07/03 Shack Introduction
10/06/21 Repeater Controller
10/06/07 Repeater Controller CW Routine
10/05/20 Clear sky, group of antennas
10/05/18 antenna group
10/05/13 50MHz also open
10/05/09 Election...eh! Are you sure?
10/05/06 How to write a card via manager
10/05/04 shack
10/04/20 VHF Repeater Orders Received
10/04/12 Philippine Military Group
10/04/11 business
10/04/05 21MHz and 50MHz antennas
10/04/04 Failed 50MHz installation
10/04/04 If not available, make one. 50MHz balun
10/04/02 If you don't have it, make it. Cross mount.
10/04/01 50MHz 5EL remanufactured
10/03/23 Four 16-meter-long bamboos
10/03/22 Production of 21MHz 3-element yagi
10/03/15 Purchase a generator
10/03/05 wire antenna
10/02/03 Broken again.
10/01/20 I'm going in the wrong direction.
10/01/19 18MHz Yagi breakage for Japan
10/01/04 7/8 2-stage 144MHz band GP
JI1FGX/DU9 TV Antenna Fabrication（2010/12/31)
We have cable TV, so we don't need an antenna, but we don't even have cable TV wiring from a few dozen meters away from our house!
That said, the Philippines'Nanchatte TV AntennaIt is too pretty to be
So here is the VHFLowBAND TV antenna designed by MMANA to compete with the Philippine TV antenna!
Osamis has only two stations, Channel 2 and Channel 5.
The antenna is divided into Low-BAND and Hi-BAND, so I made two antennas as an experiment.
Hopefully we will try to combine the two into one.
VHF low-band (band I)
Channel Lower edge Video carrier DTV carrier Audio carrier Upper edge
1* 44 45.25 n/a 49.75 50
2 54 55.25 54.31 59.75 60 ABS-CBN
3 60 61.25 60.31 65.75 66
4 66 67.25 66.31 71.75 72
5 76 77.25 76.31 81.75 82 GMA
6 82 83.25 82.31 87.75 88
6A 81.5 82.75 81.81 87.25 87.5

From http://en.wikipedia.org/wiki/Television_channel_frequencies
VHF high-band (band III)
Channel Lower edge Video carrier DTV carrier Audio carrier Upper edge
7 174 175.25 174.31 179.75 180
8 180 181.25 180.31 185.75 186
9 186 187.25 186.31 191.75 192
10 192 193.25 192.31 197.75 198
11 198 199.25 198.31 203.75 204
12 204 205.25 204.31 209.75 210
13 210 211.25 210.31 215.75 216
Antenna for VHF-LowBAND designed by MMANA
Incidentally, JA2DDA gave me some advice on converting to wideband.
Cut the elements.
But when I indicated 1.1 meters, they cut it at 10mm per meter and redid the whole thing.
Installation of power feeder
Drilling holes to fix elements
This is the completed wideband VHF Low-BAND antenna
There is such a difference in size between VHF-LowBAND and VHF-HiBAND
Can we successfully combine them into a single boom?
MMANA has not yet received a satisfactory answer.

I'm going to test them separately first.
I saw this one in town.Nanchatte TV AntennaI think it should perform much better than this dipole. It should perform much better than this dipole.
By the way, DU8EE said the short elements are just for decoration.
However, the cost will jump up accordingly, so poor people may not be able to afford it.

Residents of the Philippines who are not cable TV
If you are suffering from poor projection or ghosting, we accept orders for TV antennas.
Order from Geraldine Ueno0927-3209-246(You can also write in Japanese).
December 24, 2010   January 06, 2011