Yes. That's the beauty of a plum away draw. We made around £600k from our tie at Arsenal apparently - and that was from an approx. 36000 gate
We get 45% of net gate receipts £265,000 if it's live on TV, £18,000 for highlights and £120,000 if we win the tie.
From FA site: (iii) In matches played in the Third, Fourth, Fifth and Sixth Rounds of the Competition Proper, the net gate receipts of each match shall be divided as follows: 45% to each Club competing in the match. 10% to the Pool. Should be close on half a million then