1 Exhibit 23 INDEPENDENT AUDITORS' CONSENT We consent to the incorporation by reference in Registration Statement Nos. 333-29719 and 333-33399 of General Instrument Corporation on Forms S-8 of our report dated June 15, 1999 appearing in this Annual Report on Form 11-K of General Instrument Corporation Savings Plan for the year ended December 31, 1998. /s/ DELOITTE & TOUCHE LLP - ------------------------- DELOITTE & TOUCHE LLP Parsippany, New Jersey June 28, 1999