a. Perfection of the appeal shall be a precondition of transmitting the record to Superior Court. Perfection shall include the timely filing of a notice of appeal and the filing of the appellant's memorandum.

b. A party that fails to perfect the appeal shall be deemed to have abandoned the appeal, and the disposition appealed from shall stand as if no appeal had been taken. If the defendant is the appellant, the trial court may enter an order declaring the appeal abandoned and requiring the defendant to re-appear in court on at least 14 calendar days written notice. At such a proceeding, the trial court may apply any available bond to fines or restitution, and otherwise complete the execution of the sentence. The hearing may proceed in absentia if the defendant fails to appear or an arrest warrant may be issued.