EARLY JAPANESE RADAR

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ROLAND1369
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EARLY JAPANESE RADAR

Post by ROLAND1369 » 11 Jan 2024 20:27

Has anyone on the forum ever seen a picture of the antennae array of the first Japanese operational radar the type A.

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Akira Takizawa
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Re: EARLY JAPANESE RADAR

Post by Akira Takizawa » 12 Jan 2024 03:24


ROLAND1369
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Re: EARLY JAPANESE RADAR

Post by ROLAND1369 » 12 Jan 2024 04:57

Thank you very much Taki as always your information is priceless. Is this the transmission or receiving antennae. My understanding is that it had separate arrays. Also what is the source of this drawing and is it permissible to use it for a non profit historical journal.

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Akira Takizawa
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Re: EARLY JAPANESE RADAR

Post by Akira Takizawa » 12 Jan 2024 05:49

> Is this the transmission or receiving antennae. My understanding is that it had separate arrays.

They used the same type of antenna. So, it is both for transmission and receiver.

> Also what is the source of this drawing and is it permissible to use it for a non profit historical journal.

It is from following IJA manual. Because it is a drawing of IJA manual, no problem to use it.

「超短波警戒機甲3ワット 説明書」 防衛省戦史資料室(中央 軍隊教育 典範 通信機器 128)

Taki

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Re: EARLY JAPANESE RADAR

Post by ROLAND1369 » 12 Jan 2024 15:10

As always I am grateful for your sharing of rare knowledge. It is amazing with all of the pics and info on wartime Japanese radar that among allied records there is such little info and no pictures of this equipment. Possibly because of its employment on Home defense or limited technical value

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Akira Takizawa
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Re: EARLY JAPANESE RADAR

Post by Akira Takizawa » 12 Jan 2024 15:46

129 sets of Type A radar were produced. They were mainly deployed at Japan homeland and Manchuria. Only 13 sets were deployed at Southern Army. So, there was a little chance that the Allied researched it.

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Re: EARLY JAPANESE RADAR

Post by ROLAND1369 » 12 Jan 2024 17:15

I would agree on the reason, however at the end of the war the allies did extensive research of Japanese equipment on the occupied home islands and it surprises me that nothing seems to have survived. The same thing seems to have occured with the 1945 recapture of Corregidor. No survey or pictures of the Japanese defenses seem to exhist. This despite a survey of the condition of the prewar defenses being conducted.

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Re: EARLY JAPANESE RADAR

Post by ROLAND1369 » 12 Jan 2024 17:29

Just went through some post war photos and thanks to your excellent drawing I believe I have identified 2 postwar Pictures from the USSB which seem to show a Type A Radar instillation.

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Re: EARLY JAPANESE RADAR

Post by ROLAND1369 » 12 Jan 2024 22:05

I was too hasty. Compared the drawing with the pics and they are not a match. Still without a pic of the Type A radar.

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Akira Takizawa
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Re: EARLY JAPANESE RADAR

Post by Akira Takizawa » 13 Jan 2024 01:32

The manual has some photos. But, they are not on the antenna.

https://www17.big.or.jp/~father/aab/kik ... dar_A.html

I cannot find any photo of antenna.

Taki

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