[Milsurplus] Clandestine RBO receivers?

[howard holden]

The RBO aboard the USS Ling SS-297 also has those holes on bottom and the latch on top. No idea of why, no cover associated with them . Maybe to keep the dial from upsetting night vision?

Howie WB2AWQ

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From: Nick England<mailto:navy.radio at gmail.com>
Sent: Thursday, June 10, 2021 9:27 AM
To: milsurplus at mailman.qth.net<mailto:milsurplus at mailman.qth.net>
Subject: [Milsurplus] Clandestine RBO receivers?

Communications area - 1972 USS Pyro
http://www.navy-radio.com/ships/ae22/ae24-radio-1972.jpg<https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.navy-radio.com%2Fships%2Fae22%2Fae24-radio-1972.jpg&data=04%7C01%7C%7Cf2a0a1efba7648b8deec08d92c2cb11e%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637589392723131027%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=TdyXuX3AHqbpAeUK8xj4ITAExUwXcHfKx3MLq%2FCPxl0%3D&reserved=0>
What are those two black units to the left of the TTY gear?
http://www.navy-radio.com/ships/ae22/ae24-mys-1972.jpg<https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.navy-radio.com%2Fships%2Fae22%2Fae24-mys-1972.jpg&data=04%7C01%7C%7Cf2a0a1efba7648b8deec08d92c2cb11e%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637589392723140979%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=3nkaQSQiS9FES7%2FQ7Zco40N61Z2AHV%2F07LvwCQELf8M%3D&reserved=0>

RBO with some sort of cover over the dial? Why??
Here is an RBO-2 that looks like it has fittings to attach a cover??
http://www.navy-radio.com/rcvrs/ww2/rbo/rbo2-1305-11.JPG<https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.navy-radio.com%2Frcvrs%2Fww2%2Frbo%2Frbo2-1305-11.JPG&data=04%7C01%7C%7Cf2a0a1efba7648b8deec08d92c2cb11e%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637589392723140979%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=fVl30vmXR955f6cMg4qt2RGfIahdZ22CpIW5x%2FHGXwo%3D&reserved=0>

Cheers,
Nick England K4NYW
www.navy-radio.com<https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.navy-radio.com%2F&data=04%7C01%7C%7Cf2a0a1efba7648b8deec08d92c2cb11e%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637589392723140979%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=DsyAOeqBZNJmgbS2OZlfJiYhvyUMcHPfZ7GuUV3re4c%3D&reserved=0>

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