![]() ![]() ![]() The dish was moved down as far as possible but it was on a short tower on top of Prudential Center with not a lot of wiggle room. ![]() When it was finally safe guess what the tower guy found? RF from the bottom bay had over time eaten away the flexible jumper joining the Heliax to the dish. As it so happened we went into a period of severe winter weather with very high winds which made tower climbing to to inspect the receive dish impossible for almost two weeks.no one would climb. The studio Transmission end showed normal power out with no vswr problems. On December 26, a trip to the transmitter revealed no STL signal on either receiver whatsoever. I celebrated Christmas at Midnight Mass with an affirmed belief in God. The date was December 24,1986 at 12:45 PM. ![]() Within 4 hours of moving the backup 8100 Optimod to the transmitterfeed by the new lines into one FM-25K the STL signal. Having worked with many friends over many years at New England Bell sales and engineering along with the Radio and TV board they performed miraculous service for me. Sheer panic set in and I called New England Bell and ordered an emergency stereo analog pair installed and pleaded emergency. I had one STL receiver feeding each FM-25K and once again the problem would rear its ugly head just when I thought I had it isolated. Changed to backup transmitter with no luck. This started happening on a more frequent and frightening basis. Had this intermittent problem twice, first was at WZLX-FM Boston, STL signal would intermittently die for minutes at a time but of course by the time I got to the transmitter to see what was going happening to the Moseley PCL-606 Composite receiver the problem had gone away. The STL TX is too far from from the board operator for a quick look at the RF Output. Receive quality is 100% with 130mv indicated. Short of finding ( borrowing ) a digital RX that I could put near the STL TX with a silence sensor what could I do to confirm the problem is either path related, or transmitter related. Usually the 'last error' counter is maxed out at 999999 ( long time since failure ) when I do my weekly maintenence runs. The 'minutes-since-last-error' timer at the receiver will correspond with the dead audio. Lately, we have had several 10-30 second audio dropouts. The installation has been in place for ten years using a 2 watt Harris CDLink.ĪES from Optimod AES to Digital Harris CD exciter. I have a STL path that is around 10 miles with the TX antenna at 200 feet and the RX antenna at 500 feet. AM (mediumwave) radio station licensed to operate at a power of 1. 0 Comments Interview Questions and Answers, Job Interview Tips, Advice, Guide. ![]()
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