A man said Tuesday he had planned to disseminate a letter urging a "call to arms" in Afghanistan.
Abdul Rahman, 25, admitted possessing articles for the purpose of terrorism, dissemination of terrorist propaganda and aiding or abetting the breach of a control order - an order restricting the movements and contacts of a terrorist suspect.
The guilty pleas, entered at Manchester Crown Court a day before he was to go on trial, were part of a plea bargain to avoid trial on a further charge of assisting another to commit or prepare a terrorist act, which carries a maximum life sentence on conviction.
The judge, Clement Goldstone, indicated that Rahman faced a maximum sentence of six years in prison.
Rahman, a native of Pakistan, admitted possessing the letter with the intention of using it to encourage others to fight.
The letter was sent by his former housemate Aslam Awan, who was in Afghanistan and is now banned from entering the Britain.
At the time of his arrest in January, Rahman was preparing to send hunting knives and mobile phones to Awan, prosecutors said.