Get On 222 MHz with a Ten-Tec 1210 Transverter!

摘要

If you operate on 6 and 2 meters,rn you know how popular the Ten-Tec 1210 transverter units are. They remind me of Heath's popular Heath Benton Harbor "Lunch Boxes" that gave 6- and 2-meter activity a much-needed shot in the arm some decades ago. The 1210 allows you to operate onrn2 meters with a power output of 10 W using your 10-meter transceiver. A while ago, a friend and fellow VHF enthusiast, Bill, WB4WEN, approached me with an idea. He wanted to increase the local activity on 222 MHz. One way to do this, he suggested, was to try converting a Ten-Tec 1210 transverter to operate on 222 MHz. Bill had studied the unit's schematic and it looked like a good candidate for the job. Besides, he already had a nonworking unit he had picked up at a bargain price! Other than a new crystal for the band change, the other additional components needed for the modification are a few disc-ceramic capacitors and some RF chokes to retune the circuits to 222 MHz.