[CQ-Contest] In-Band Stations

[Martin, LU5DX]

Hello,

I am searching information for a presentation on in-band stations.

The first reference I see in the email archive of this reflector goes back
to February '94.

I am sure the use of in-band stations by Multi-Op contest entrants in the
US started earlier than that.

Any information on who where the pioneers and when they started
implementing this type of setup will be much appreciated.

Many thanks,

Martin, LU5DX