TMDS261B – Max transmission distance & What is the reason which cannot be used for the surce side?

Q1.

Is the greatest transmission distance 20 m on the following conditions?

(reference : Detasheet P18 Figure15)

<Condition>

・3Gbps (resolution is TBD)

・HDMI Cable

Q2.

What is the reason which cannot be used for the surce side?

The customer wants to use TMDS261B for the Source side.

Please confirm an attached file.