SOS Pompey have announced a demonstration against the club’s owners following their transfer window failure.
The fans’ action group postponed a similar event ahead of the Leeds match on January 22 after David Lampitt offered to meet them.
Since then, Pompey have not added any permanent signings to their squad during the transfer window.
Meanwhile, John Utaka left for Montpellier in a deal worth £430,000.
That has prompted SOS Pompey to issue a statement calling on fans to join a peaceful demonstration before the visit of Derby on Saturday.
They have also called on Pompey chief executive Lampitt to resign.
And they are urging supporters to attend the event, which will take place in Frogmore Road in front of Fratton Park at 2pm.
The statement said: ‘Following the end of the court case with HMRC last summer and, despite describing himself as a reluctant owner, Balram Chainrai once again took ownership of Portsmouth Football Club.
‘Mr Chainrai and business partner Levi Kushnir have constantly repeated their mantra of only protecting their investment, yet they must realise that they have a duty of care to the club and supporters.
‘A lack of investment and the sale of players have left manager Steve Cotterill with a threadbare squad heading into a crucial part of the season and an uphill battle to stay in the Championship.
‘David Lampitt approached SOS Pompey in an attempt at appeasement following the announcement of our intended protest prior to the match against Leeds United.
‘In the spirit of togetherness we decided to postpone that protest and sit down and talk.
‘It is now very clear that those talks were merely lip service and we call upon him to resign with immediate effect.
‘SOS Pompey call upon all supporters to voice their concern about the direction that our club is taking.
‘It is now clear that the owners are content to allow our club to drift rudderless without investment or care.
‘We ask you to fully support the manager and team who need us now more than ever, but we must leave the owners in no doubt we hold them in the same contempt that they hold us.
‘We ask you to join us in a noisy yet otherwise peaceful demonstration of our anger.
‘Bring your Pompey colours, banners and above all your voices to the gates of Fratton Park in Frogmore Road 2pm prior to this Saturday’s game.’