Yes indeed - more than a hack. It's part of the AN/ARN-59 set. The ARC 1960 catalog has more at https://www.bunkerofdoom.com/lit/ARC_1960_cat.pdf
- Mike KC4TOS

On 7/22/2022 12:42 PM, Dave Merrill wrote:

Looks like more than a hack:

https://www.ebay.com/itm/304388877546

Dave N9ZC