The SM-220 Station Monitor Scope is a Kenwood instrument designed to monitor and display signals from TS‑820 and TS‑520 series transceivers. It combines a CRT monitor‑scope, an oscilloscope, and a two‑tone audio generator, with an optional Pan Display module for enhanced viewing.
The manual covers unpacking, safety warnings, cabling requirements, detailed descriptions of front‑panel controls, indicators and connectors, as well as step‑by‑step operation procedures for transmit‑signal observation, RTTY patterns, trapezoid waveforms and audio generation.
| Frequency range | 1.8 ~ 150 MHz |
|---|---|
| SWR | 1.2 or less |
| Deflection sensitivity | More than 1 DIV at 2 W PEP input |
| Attenuator steps | 6 steps |
| Dimensions | 215 mm W × 153 mm H × 335 mm D |
The SM‑220 covers a frequency range from 1.8 MHz to 150 MHz.
The attenuator provides six selectable steps.