Comarco Inc. of Anaheim said it plans...

Comarco Inc. of Anaheim said it plans a public offering of $7 million to $10 million in convertible subordinated debentures. Comarco said Wednesday that it will file, within the next 30 to 60 days, a registration statement with the Securities and Exchange Commission on the offering.

Debentures are bonds backed by the general credit of the issuer but not secured by a mortgage or lien.

The computer and engineering services firm said proceeds from the offering will be used to retire short-term debt, provide working capital and finance the company’s expansion.