Topband: Connecting Rx antenna to FTDX101

[Mirosław Paczocha]

Hi,

I intend to connect a K9AY antenna to socket 3 of an FTDX101D, this socket
being menu configured as Rx input. The problem is I measured about 1,5 V on
the K9AY coax loaded with 50 ohms with 100W forwarded to the Tx antenna and
I wonder if it is safe for the Rx part of the radio. With full power it
would be several times more! I did not find requested information in the
manual nor any of known Yaesu dealers has been able to answer my question.
Going T/R in this configuration I can hear relay noise in the rig so may I
assume all will be correct however a mistake would be very expensive.
Can someone give me a reliable information about the safety of the radio?

73, Mirek
SP5ENA

PS. I realize perfectly that is not a good sign having so much power induced
in the Rx antenna.