P-47 navigation homing radio (BC-1206 "Detrola") works like the Bf 109 without the needles or the lamp..

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Left of line up short beeps. Lined up steady tone. Right of line up longer beeps. For the record, not saying exactly like the Bf 109 (need to check more than just cursory).

 

Also, "sabredancer" on hoggit observed the Spitfire has gotten the "A.1271" homing radio in Mission Editor. No controls in game I can find (or possibly understand).

 

Attached mission (.miz) file works for 109 and P-47.

On spawn:

-P-47, turn on Detrola

-Bf 109, switch "Fug16 Homing Switch" from "FT FT" to "Y ZF".

then it will start beeping...

 

 

Changing Detrola freq it'll go away, so tuning works.

I'm told:

Quote

 

https://www.reddit.com/r/hoggit/comments/o7p6u4/dcs_newsletter_summer_sale_is_now_on_steam_and/h32umgk/

 

“...the homer converts the signal received to a D (-..) or a U (..-). When the transmitter is on your right, you receive a U, and when it’s on your left you get a D... once you are headed directly towards the transmitter, the two signals merge and you receive a steady hum.”

 

 

Bf 109 and P-47 nav to kobuleti 111.5.miz

Edited June 26, 2021 by -0303-

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So I made a video. Flying left and right of Kobuleti and then sitting on ground (X field right of Kobuleti). Note, Kobuleti is visible in all three parts of video.

 

-flying left of Kobuleti 21 secs

-flying right of Kobuleti 21 secs

-sitting on ground right of Kobuleti 49 secs (X field) . Nose pointed right of Kobuleti.

 

What I hear:

Flying left of: Short beeps in silent background

Flying right of: Short pauses in steady background tone

(Not in video, centered gives a steady tone)

 

Sitting on ground X field, nose pointed just right of Kobuleti: This repeating every 17 seconds. 3 times over 49 seconds. What's that supposed to be?

..-.--...

If first part "..-" is a "D", shouldn't it be a "U"? Is it supposed to model intermittent reception? But wherever, however I fly around, nowhere can I find a steady repeating "U" or "D". Two pages from manual below video (Pdf 46 and 48).

 

 

 

 

 

Edited June 27, 2021 by -0303-

[saburo_cz]

You missed fact that the Detrola and the Homing device, AN/ARA-8, were totally different "systems"...

 

The Detrola receiver was used for receiving signal from A-N beacons, which determined "skyways" across America. These beacons were only located throughout the United States, Canada and Alaska.

 

 

 

 

But the Homing device gave to pilots U,D or continuous signal depending on plane heading to beacon. These signals were generated by Modulator Keying Unit according to phase shift between received RF signals by two antenna masts.

The beacon could be any VHF trasmitter on frequency 120-140 MHz, which is quite out of the Detrola frequency range...

 

The last note, the Homing device has only the P-51D-30 in DCS W, and not the P-47. You refer to the P-47N manual, we do not have N model in DCS W.

Edited June 27, 2021 by saburo_cz

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I'm describing what's happening.

I did notice the Detrola 200-400 KHz freq range is wrong. I did read about ARA 8 and VHF. On second thought, did D version have ARA 8 at all?

I did not check the manual version. Guy on reddit referred to it and I assumed it was for "our" P-47 as well. Mea Culpa.

 

Yet when changing Detrola freq in flight the beeping goes away.  Setting "BC-1206" to "100MHz" sets Detrola to 200KHz. Setting "BC-1206" to "111.5MHz" sets Detrola to 209KHz.

 

The Detrola panel is doing something, connected to reality or not.

 

Quote

The Detrola receiver was used for receiving signal from A-N beacons, which determined "skyways" across America. These beacons were only located throughout the United States, Canada and Alaska.

When you say it I remember. Detrola is not, never was, used in outside N. America.

 

Edited June 27, 2021 by -0303-

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Mission Editor has a setting for "BC-1206" which accepts  between 100 - 200 "MHz".

 

Just for amusement I found the "BC-1206". It's a "Detrola". "BC-1206" is an army name I think. Multiple manufacturers made "Detrola's". SETCHELL CARLSON "Detrola". Freq range 195 - 420 KHz. So MHz range is all sorts of wrong.

 

Here's a good clear full schematics, component list and text description.

Interesting. It's stamped "SC5860A" (red upside down).

https://radionerds.com/index.php/BC-1206

 

 

Edited June 27, 2021 by -0303-