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Yahoo Bid Hobbies & Crafts Wireless Devices Antennas
ワイドバンド アンテナ BB250 ( BB6W BB6WS T2FD と同じ動作系のアンテナです。) ブロードバンドアンテナ
 
        

  • Product Quantity
    : 3 / Remaining:3
  • Starting Bid
    :9,000円
  • Highest Bidder
    : / Rating:
  • Listing Date
    :2026年01月16日 19時28分
  • Bidding closes on
    :2026年01月23日 19時28分
  • Auction Number
    :f1212866800
  • Condition
    :New product
  • Automatic Extension
    :Yes
  • Authentication
    :Yes(Description)
  • Early Closing
    :Yes
  • Can I return the product?
    :no
  • Description
  • Q&A ()
  • Cost Estimator
  • Problem Item Response Procedur
Notes
  1. Radio communications related products (import and export documents required) cannot be assisted in importing.
DPをフルサイズとした場合半分にしたアンテナがツエップアンテナという例えがありますが
これはT2FDを半分にしたような BB6W (BB6WS )と同系の進行波アンテナになります。
全長6m程度で広帯域をATUの調整のみで使用できます

ほかの出品物と異なり1段太いフジクラ製3.5SQのエレメントで制作しています
エレメント底部に水抜き穴も用意して内部に湿気、水分が溜まらないよう制作してあります

設置方法はDPと同じように水平に張りアンテナチューナ(以下ATUと記載)
の接続ないし内蔵したリグに接続してもらえれば運用可能です。
垂直でも運用は可能で竿があればこのような形でのキャンピングカートに括り付けて野外運用も可能です。
The

 ベランダから竿で運用されている方もいらっしゃいますのでかなりHFのアンテナとしては運用しやすいかともいます
調整はATUで行いますのでエレメント長の調整も不要で広域に交信いただけます。
 ただし、T2FDなどでもそうですが、一般的な定在波アンテナとは異なり進行波アンテナという性質上エレメント長と給電部内の同調回路で調整するアンテナではない為必ずATUが送信に必要になります。
最近検証の結果、アンテナカプラーなどLCを手動で調整するチューナーでもご使用いただけます。
※東京ハイパワーHC75にて検証済み
 ベランダから竿で運用されている方もいらっしゃいますのでかなりHFのアンテナとしては運用しやすいかともいます。
調整はATUで行いますのでエレメント長の調整も不要で広域に運用いただけます。
 ただし、T2FDなどでもそうです非同調の進行波アンテナという性質上エレメント長と給電部の同調回路で反射波(SWR)を調整する同調型の定在波アンテナとは異なります。
 ICOMのIC-7300やIC-9100のようなATUが内蔵された無線機、もしくはYAESUのFT-897とFC-30または東京ハイパワーHC-100ATのように外部接続するATUを使用するとよいと思います。

下の写真のようにアパートの屋上に適当に張っての運用や車での移動運用などに使用でます
The
The

仕様
全長約6m
使用可能周波数:1.9~50MHz
耐入力:250W(PEP)
通常設定より太いフジクラ製3.5SQのエレメントを使用。より張力に対して丈夫になっています

The
高解像度のオリジナル版は下記のリンクにて公開中
SWR測定データ

発送方法について
・ヤマト運輸(宅急便コンパクト)
 

Q&A
割とよく聞かれる質問がありますので軽くお答えします。

Q.ATUなしで使えないのか?
A.進行波アンテナという特性上同調させて使用する定在波アンテナと異なるのでSWRが落ちず使用できません
※ただし、検証実験の段階で部分的にアンテナアナライザーで見てみると全く落ちていないわけではないので保証対象外ではあるが落ちないとも言いけれない

Q.エレメントの長さを調整することによって受信感度を上げられないか(例6mを10,20mへ)
A.内部回路を6mに合わせている関係上受信のみであればラジオ同様上がるかもしれないが電気特性の整合性が取れなくなります。実施の際には自己責任で。

Q.分解できますか?
A.構造強度の問題と分解をする必要性がないため非破壊での分解できません。どうしてもばらしたいのであれば円筒を切断して別の円筒で組みなおせば戻せます。保証はしませんが

Q.エレメントを曲げての敷設について
A.90°ぐらいまでは大丈夫と思いますがそれ以上鋭角に曲げて使用すると電波特性の悪化の要因につながります。

Q.手動アンテナチューナー使用について
A.東京ハイパワー(HC-75)を用いて検証済み
アンテナアナライザーにて設定し送信実験を行い正常にSWRが落ちることが確認されています。
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Question list
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Product Price JPY
Japanese Consumption Tax(10%) JPY

A 10% consumption tax is applied to goods and services in Japan. The price may include the tax or it may be added separately. Please check the price details when ordering.

Note: This is a domestic sales tax applied within Japan.

Japan Local Shipping Fee JPY Japan Local Shipping Fee Reference
Product Weight KG The maximum weight limit is 30 kg
International Shipping Methods
Proxy bidding and purchasing services are becoming increasingly convenient. However, overseas shopping carries certain risks and issues. To reduce these risks and enhance shopping safety, please be sure to read the following information:

1. International Shipping

   Air Freight: If the item status is not confirmed within two days after the arrival notice, any customer complaints cannot be addressed with the seller.

2. After Receiving the Product

Please confirm and inspect the product as soon as possible to ensure that the product specifications, quantity, accessories, and description are correct

If, unfortunately, there are any issues, you can refer to the following examples on how to report related product problems:
1. Example of missing product information
2. Example of product not matching provided information
3. Example of damaged product information

Important Notes: 1. If the seller is unwilling to ship overseas or is unaware that the product will be shipped overseas, the international shipping cost for returns or exchanges will need to be borne by the member. You may refer to the EMS e-Express fee inquiry from the post office. If it involves alcoholic beverages or items that affect flight safety, the post office cannot be used for shipment, and only DHL can be used to ship back to Japan.
2. During the product complaint handling period, please retain the complete outer packaging of the product (including the shipping label information), and refrain from attempting any repairs or altering the original condition. Any modifications may result in the inability to process the case.

3. After Inspecting the Product

After receiving and inspecting the item, if you have any questions, it is recommended to contact Letao within 2 hours. Here are some reminders:

1. Please do not unpack, use or repair the received item yourself, and be sure to keep the original packaging to facilitate subsequent handling of related matters, so as to avoid changes to the item that may cause the seller to be unwilling to process.

2. You can call customer service, and the customer service will leave a message for you as below. Please provide the following information:
"Hello, we will first help you establish a complaint case for Product ID: _______ .But we need you to 2-3 clear photos of the product issue, including photos of the product problem, product packaging, shipping details slip, and outer box. Send them to service@letao.my and inform us of your desired resolution (failing to provide this may result in an inability to process subsequent matters). After sending the email, notify us in the customer service message. We will confirm with the seller as soon as possible. and if there are any related questions, we will contact you through the customer service message. Thank you for your cooperation."

Please provide:
1. "Product ID"
2. Photo of the "Delivery Note" (if any)
3. Photos of the outer box (including inner and outer packaging)
4. Photos of the product (Please include relevant descriptions to help us confirm with the seller)

Important Notes:
1. Do not include foreign text or other products in the background of the image.
2. Please keep the complete product packaging (including the shipping label information), and refrain from repairing or altering the original condition on your own, as any changes may result in the case being unable to be processed.
3. Please provide the relevant information within 48 hours to avoid missing the golden hour for reflection and causing situations that cannot be handled.
4. Due to 99% of Japanese sellers being unwilling or unaware of shipping goods overseas, if a seller is willing to handle the issue, the goods must be sent back to Japan, and the international shipping costs incurred must be borne by the member. Letao will use postal EMS international express to send the goods back to Japan.
5. As the goods are purchased from overseas, it may take approximately one to two weeks to complete the relevant processing procedures when issues arise with the goods. Please be reminded that you can inquire about the approximate cost through the EMS service at the post office.

4. FAQ

1. Issue of Authenticity: If antique or branded goods are found to be counterfeit upon receipt, clear photos showing the differences between the genuine product and the imitation must be provided as evidence. If unable to provide relevant proof, assistance can be sought to find a third-party reputable organization for a premium authentication service .
2. Leaking Iron Teapot: If an antique iron teapot is leaking, please take clear photos of the leaking area and provide them.
3. Transport Damage: If the goods are damaged during international shipping (to the pickup point), you need to provide photos of the outer packaging of the parcel and clear photos of the damaged goods' outer packaging.

※ Note: Photos provided to sellers should not contain any foreign-related information.
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    Product name: ワイドバンド アンテナ BB250 ( BB6W BB6WS T2FD と同じ動作系のアンテナです。) ブロードバンドアンテナ
    Notes:
    Customer service hours:
    • Monday to Friday 10:00-18:00
    Customer service hotline:
    Customer Service Email: service@letao.my