= NOW 35 WPM = TEXT IS FROM SEPTEMBER 2021 QST PAGE 94 = CLASSIC RADIO THE SIGNAL ONE CX 7 COMPLETE STATION THE SIGNAL ONE CX 7 SEE FIGURES 1 AND 2 ALL IN ONE TRANSCEIVER HAD MANY ACCESSORIES THAT COULD BE USED WITH A TRANSCEIVER IN A WELL EQUIPPED AMATEUR RADIO STATION. THE ONLY COMMONLY USED ACCESSORIES MISSING FROM THE SIGNAL ONE WERE A LINEAR AMPLIFIER AND AN ANTENNA TUNER. THE SIGNAL ONE WAS FIRST ADVERTISED IN QST IN 1969 FOR 1,595, BUT MOST INITIAL UNITS WERE DELIVERED IN 1970. SIGNAL ONE BACKGROUND RICHARD EHRHORN, W4EA EX W4ETO, AND DON FOWLER, W4YET, CREATED SIGNAL ONE. SIGNAL ONE WAS INITIALLY LOCATED IN SAINT PETERSBURG, FLORIDA, AND WAS A PART OF ELECTRONIC COMPUTER INTERNATIONAL, WHICH WAS OWNED BY NATIONAL CASH REGISTER NCR COMPANY. INITIALLY, THE DEVELOPERS OF THE SIGNAL ONE CX 7 THOUGHT IT HAD A BIG FUTURE IN GOVERNMENT AND MILITARY SERVICE, BUT THAT ASPECT OF THE CX 7S APPEAL DID NOT PAN OUT. THE CX 7 WAS UPGRADED SEVERAL TIMES. IT BECAME THE CX 7A AND THEN THE CX 7B SEE FIGURE 3. LATER, IT BECAME THE CX 11 AND CAME WITH SEVEN SEGMENT LED READOUT DEVICES DESIGNED INTO THE FREQUENCY COUNTER. THE CX 11 VERSION COST 2,600, THEN ROSE TO 5,900. IT WAS DISTRIBUTED BY PAYNE RADIO IN SEPTEMBER 1974, BUT THEY DID NOT YET OWN THE SIGNAL ONE COMPANY, AS THEY LATER DID. CX 7 OPERATION THE SIGNAL ONE CX 7 OPERATED ON 160, 80/75, 40, 20, 15, AND 10 METERS, PLUS THREE OPTIONAL BANDS COULD BE ADDED BY SUPPLYING OPTIONAL = END OF 35 WPM TEXT = QST DE W1AW <