Thanks to everyone for their replies, both public and private.

Richard Knoppow,  I will indeed contact the folks at radiomarine.org.

73 Mark K3MSB

On Fri, Aug 23, 2024 at 10:06 PM Mark K3MSB <mark.k3msb@gmail.com> wrote:
Might any of you know in what device this was used?

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73 Mark K3MSB