[Boatanchors] Spark Gap

[Todd, KA1KAQ]

Off the top of my head, '26-'28. But I seem to recall it was still allowed
as backup or used on some ships much later.

~ Todd,  KA1KAQ/4

On Sun, Jul 8, 2012 at 5:47 PM, Mark K3MSB <mark.k3msb at gmail.com> wrote:

> When was spark transmission made illegal?   Lot of info on the web about
> spark gap,  but I can't find anything about the date it was made illegal.
>
> Thanks
>
>