That is NOT an amplifier for an AN/PRC-152. This is:
The sailor or Marine is carrying a JCREW jammer. (Joint Counter Radio-Controlled Improvised Explosive Device (RCIED) Electronic Warfare). They are high-power, modular, programmable, multiband radio frequency jammers designed to deny enemy use of selected portions of the radio frequency spectrum. They come in 3 varieties fixed, mounted, and dismounted.
You can bet that cell service anywhere near that thing stinks on ice.
WWG1WGA
Garde la Foi, mes amis! Nous nous sommes les sauveurs de la République! Maintenant et Toujours!
(Keep the Faith, my friends! We are the saviors of the Republic! Now and Forever!)
LonePalm, le Républicain du verre cassé (The Broken Glass Republican)
Dis ( I think it was you ):
Here’s why the dockside cameras are unavailable.
Navy radioman bloke but wouldn’t know diddly about those items. Thanks.
Thank you very much for that information. All settled, now!