Labels:book | bulletin board | daily | reckoner | sky OCR: BULLETIN from: TRIQ- -KENWOOD COMMUNICATIONS INC SUBJECT HUM IN SSB TX T5-1 1205 AND OTHERS DATE Some TS-120s users may comslain of hum auring operati ion which be caused by RF feedback There be reasons comp aint Had feedline and antenna puno1d Poor Mic hoakup or shiel ding. Vert icle antenna ith DOOr or no systen. POI base ope tion with Other than P5 30 Fower Supoly Poor tchaa at ion que insafficient bu in the suppiy Lincar amplificr creating hi RF field near the operating posi ti RF induced hack intc the power supply cans falsc protection (other than PS- 30 RF pickup any cables from ancillary equipment Pre vertion the best cure FOr thoae where normal measures have been tri Led try installing qluf bypase cap across the Mic input 1ack between pins and IOS AFSK ope rators may have simi lar ...
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