PM-1 Heathkit RF Power Meter

The Heathkit RF Power Meter Kit is designed to sample the RF field in the vicinity of your transmitter, whether it be marine, mobile, or fixed. It requires no batteries, electricity, or direct connection to the transmitter. The power meter is merely placed in some location close to the transmitter, to pick up RF radiation from the antenna which is then indicated on a panel meter. It provides you with a continuous indication of transmitter operation. You can easily detect if power is dropping off by comparing present meter readings with past ones.

The PM-1 operates with any transmitter having output frequencies between 100 kc and 250 megacycles, regardless of power. Sensitivity is 0.3 volts RMS full scale, and a special control on the panel allows for further adjustment of sensitivity. THe meter is a 200 ua unit, mounted on a chrome-plated brass panel. Housed in a plastic case the entire PM-1 measures only 3¾" W. x 6¼" H. x 2" D. An easy way to put your mind at ease concerning transmitter operation.