Ailtech Stoddart P7 Programmer NM-17/27 NM-37/57 NM-67 EMI Receiver

Ailtech Stoddart P7 Programmer NM-17/27 NM-37/57 NM-67 EMI Receiver 0.02kHz-40GHz

The Ailtech Stoddart P7 Programmer is a broadband EMI receiver programmer and scan controller manufactured by the Ailtech Division of Cutler-Hammer. It provides automated band selection, scan control, and data output for use with Stoddart NM-series EMI receivers, covering a combined frequency range from 0.02 kHz to 40 GHz across the NM-7, NM-17/27, NM-37/57, NM-67, and FC-67 bands. The front panel is organized into three main control sections: Receiver Control, Scan Control, and Data Control.

Specifications & What's Included

• Manufacturer: Ailtech Division of Cutler-Hammer
• Model: Stoddart P7 Programmer
• Combined frequency coverage: 0.02 kHz to 40 GHz
• Band groups covered: NM-7 (kHz bands), NM-17/27 (MHz bands), NM-37/57 (MHz/GHz bands), NM-67, FC-67 (GHz bands)
• Receiver Control section: Bandwidth selector, Detector Function (QP, 0.5, Peak), Remote Atten (dB) dial (0–100 dB range)
• Programmer Mode switch: Local / Remote
• Scan Control section: Sweep Time (LL), Vernier, Scan Mode (Manual/Sector/Full), Sector Calibrate (percent of band)
• Data Control section: Display Mode selector, Power indicator, Start/Stop/Reset controls, X-Y Recorder pen control (Up/Normal/Down)
• Rear panel power: 115V / 230V AC dual-voltage, fused at 1.5A S.B. (230V) and 3A S.B. (115V) per supply rail; IEC-style AC inlet
• Rear panel channel connectors: NM-7, NM-17/27, NM-37/57, NM-67 — each with LOG, AUX, and PROGRAM large multi-pin circular connectors
• Rear panel outputs: AUX Output, CRT outputs (X Data, Y Data, Z Blank), X-Y Recorder (X Data, Y Data, Pen Control)
• Remote interfaces: Remote Digital Display connector, Remote Digital Controller connector
• Simultaneous FI connector (rear)
• Antenna Switch and Attenuator connector (rear)
• Form factor: Benchtop / rack-mountable enclosure with front and rear handles
• Country of manufacture: United States (Ailtech, Sun Valley, California)

Applications

The Stoddart P7 Programmer was designed to work as the control and automation hub for Stoddart NM-series EMI measurement receivers — a family of instruments widely used in military, aerospace, and industrial electromagnetic interference (EMI) and electromagnetic compatibility (EMC) testing from the 1960s through the 1980s. In a typical test setup, the P7 Programmer controls one or more NM-series receivers simultaneously, automating the frequency band stepping and scan sweep functions that would otherwise require manual tuning across the instrument's wide coverage range. The system was commonly used to meet MIL-STD and CISPR EMC test requirements, particularly in defense contractor facilities, government test labs, and aerospace manufacturing environments. The X-Y recorder output allowed test results to be plotted directly onto paper chart recorders — the standard data capture method before digital acquisition became common. The remote digital display and remote digital controller interfaces allowed the programmer to operate as part of a larger automated test rack. Today, complete Stoddart NM-series systems remain in use in specialized legacy test environments and are sought for military contract EMC compliance work where the original test methodology must be replicated. Individual components like the P7 Programmer are also valued as parts sources and for restoration of complete systems.