Right, I feel strongly such diligent research must have placed him well to aid the war effort, thus my speculation "by 1942 or so" he might have been involved in the war-driven innovative period. I could be wrong and he could have been burning to personally take up arms, as well. I was speaking of his research accomplishments and made no mention of any particular radio service.
I had close relatives that served in combat and logistics during WWII, but also had an uncle who was a Electrical Engineer who was deemed essential to the War Effort stateside.
I can visualize this gentleman running the HFDF network, or in Communications intel.
His painstaking approach and data generation looks pretty defensible, even in our data-fat and gadget-rich era.