Super Antenna FG1 Frequency Guide HF SWR Ruler for MP1 ham radio amateur

This is the Super Antenna FG1 Frequency Guide. It is the SWR Ruler for all MP1 series antennas made by Super Antenna. Calibrated in MHz and Meter Bands. It is made of heavy-duty flexible polymer, waterproof and write-able with a sharpie marker for your favorite nets. Enables quick and easy setting of the SWR for Super Antennas portable HF verticals and dipoles such as MP1 series and DP2 series. Eliminates the need for antenna analyzers, noise tuning, and SWR meter guesswork.