ANTENNA
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LongWire for 160m Band
built up Long Wire on Apr.13th.2024
It Will give me a chance to have QSOs on TopBand.
144MHz 5ele Yagi 6mH/Radix RY-144M5SC
Nov. 2023
7/10/14/21/28 Vertical/V4XH (MiniMulti Antenna Co.,Ltd)
Oct. 2023
共振周波数をバンド内に収めるのに苦労しましました。接地線接続のみでラジアルは無し。
It took a lot of time to get lower SWR,
The hight of base of vertical was influenced so much to SWR in my case.
| Freq. |
SWR |
Z |
| 7000 |
1.0 |
42 |
| 7096 |
1.5 |
|
| 7159 |
2.0 |
|
| 10.008 |
1.1 |
|
| 10.100 |
1.75 |
35 |
| 10.122 |
2.0 |
|
| 14.026 |
1.0 |
42 |
| 14.131 |
1.5 |
|
| 14.220 |
2.0 |
|
| 21.055 |
1.7 |
42 |
| 21.185 |
1.65 |
|
| 21.514 |
1.75 |
|
| 28.020 |
2.3 |
|
| 28.660 |
2.0 |
|
| 30.176 |
1.8 |
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14/18/21MHz VDP 5mH
Aug. 2023
 
3R5/7MHz Dual Band Dipole 6mH(W735/Diamond Antenna Co.,Ltd)
build up on 2021/08/09
(左)：ワイヤー右端部 (右)：中央給電部
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現在はWhip ANTだけのローパワーオペレーション
May.2021
My ANT is just whip antenna on 40, 6 and 2 meters band.
I am operating on 40mtrs CW mainly. |
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現在はWhip ANTだけのローパワーオペレーション
Aug.2018
My ANT is just whip antenna on 40, 6
and 2 meters band.
40mtrs whip is set to horizen,
Power is maximum 50 watts.
but I heard several Hungarian Stations
on 40mtrs on Hungarian DX Contest
in Jan.2018 |
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 EXPERIMENT OF EASY CONSTRUCTION ANTENNA
Wire antenna with ATU / July01.2006.
Antennas using ATU are all easy construction. I should think it means I
wouldn't have much gain.
anyway, Easy Construction is very attractive for me. |
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 Testing an Antenna Tuner
I'had been testing an antenna tuner.
This is a CLC tee type tuner by K3WWP.
I refered the web site of K3WWP, many thanks JOHN.
JOHN is very eager to CW QRP. I admire his nice results.
受信用バリコンを使ったアンテナチューナーの実験。
バリコンは高価なタイトバリコンではなく、ジャンクの
FM受信用バリコンを使いましたがCWで50W送信しても
スパークしませんでした。 |
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 CLC Tee Type ANTENNA TUNER
I made a tuner for wire antenna.
This is a CLC tee type tuner by K3WWP.
I refered the web site of K3WWP, many thanks JOHN.
4〜5mのワイヤーをHFアンテナにするにはチューナーが便利 |
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■HF delta loop antenna with ICOM AH-3 auto tuner
ループ状にすればチューナーのコールド端子に接続するアースが不要になります。ループの効用、特性は？ |
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■2m Band INDOOR ANT
インドアアンテナとは実用になるのか？
室内でもフルサイズのANTが試せる2mBANDで実験。
インビジブルANT、スモールANTは近所の人にストレス
を与えないと言う点で優れていますが・・・・・。 |
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