Russia possessed no radar facilities in the Murmansk area in 1942

American naval attaché at Moscow, Russia reported in April 1942 it was believed that the Russians lacked any radar in the Murmansk area.

Source

National Archives USA. Record Group 38: Records of the Office of the Chief of Naval Operations. Series: Secret Naval Attaches Reports. Estimate of potential military strength (pt.). Summaries. Reports from London, Paris, Brussels, Rome and Berlin. Roll M975-001.