On 2018-02-16 00:08, Kermit (aka Ken) via RTTY wrote: > Hank: The only time it is OK to send 599 more than once is when serial number is 599, then 599 599 599 is OK, but maybe 599 SN 599 599 is better? --Mike, WV2ZOW After QSO 598, I enter it again as a dupe, nr 599. Then the next station gets nr 600 from me. 73, Mark, K5AM