March 2018 Local Oscillator
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The Newsletter of Crawford Broadcasting Company Corporate Engineering MARCH 2018 • VOLUME 28 • ISSUE 3 • W.C. ALEXANDER, CPBE, AMD, DRB EDITOR Translators! situation worked out and done with. If there were The big news on the translator front this going to be more translator windows coming, I might month is that the FCC has granted the WRDT(AM) suggest to the FCC that they change this policy – 107.1 MHz translator application in Detroit with just two applicants in an MX group, who would (W296DY). This application had been held up at the they collude against? Media Bureau awaiting Canadian coordination. As I noted last month, in this AM translator Evidently, the Canadians responded with no window it will take quite a while to sort everything objection, because in late February we got a grant. out. Based on our experience with the last window This translator will operate with 60 watts (Auction 99), it could well go on six months or more ERP with a dual lobe pattern NNW and SSE, with from application to grant of a CP. Assuming we do broad nulls to the WSW to protect an Ann Arbor get grants, this will mean that every AM station in the station and ENE to protect a K-Love translator. company has a companion FM signal. I find that Hopefully we will not cause any interference issues pretty amazing! to our neighbors. We will certainly be responsive if In Chicago, we’re on the other side of a issues are reported. translator battle. Moody has filed for a translator in The equipment is on order and I hope to the Addison area on our 106.1 frequency right in our have the station on the air in April sometime. This coverage area! I really can’t believe they did that, will be a great addition for WRDT. knowing that we serve that area which is outside our Over on the other side of Lake Erie, it protected contour but well within the listenable area. appears at this point that we are in the clear with the Chicago is Moody’s hometown. They must have WDCZ - Buffalo translator application; no mutually known that there is a local signal on that frequency. exclusive applications have shown up in the FCC’s We have alerted Moody’s counsel as well as database. The FCC has not yet released the list of the organization itself of this conflict and advised MX groups and singletons, so we can’t be 100% them that we will take whatever steps are available to certain until then, but I’m fairly confident that we’re us under law to protect our signal. We’ve fought and good in Buffalo. won one translator battle on this frequency in It’s a different story in Rochester, where the Chicago, and we’ll fight and win another one if we WDCX(AM) translator application is MX with a must. translator application in Brockport, NY. The My hope is that Moody will recognize that Brockport applicant is a good friend, and I’m certain not only will they both cause and receive a we will be able to work out an arrangement that will tremendous amount of interference, making their resolve the MX status of both applications and make translator worth very little in terms of them grantable. It’s really too bad that the FCC service/coverage, but it will also be very costly to prohibits “collusion” in two-application MX groups, keep it on the air. because if they did not, we would already have this 1 The Local Oscillator March 2018 The New York Minutes By Brian Cunningham, CBRE Chief Engineer, CBC – Western New York Hello to all from Western New York! cause arcing between the fuse blades and the We have all used outside contractors from mounting clips, therefore increasing the heat even time to time, such as tower climbers, HVAC further. repairmen, generator service I had my electrician techs, electricians, etc. In look at the 200-amp load most cases, in all service to see what could be probability, you have used done to prevent this problem the same people for years, in the future. He and know what level of recommended increasing the service they provide and are load disconnect to one rated comfortable with the work for 300 amps and replacing they do. But what about the meter socket, which had those you hire to do a job, been in place for over 30 and you know little to years. At that time, I nothing about them? collected five bids from From time to time, local contractors to get the we are required to get best possible price for the several bids on service replacement. After goods/services from outside vendors, and many reviewing all the bids, I picked the one I thought was times, quotes are received from companies you know the best deal for us, signed and accepted the bid. nothing about. How do you go about checking the After sending the required down-payment, integrity and reliability of the vendor? we waited for the work to be scheduled. And wait we The first thing I check is the Better Business did, days turned into weeks, and weeks into months, Bureau to see if there are any complaints reported with many scheduled work dates canceled for one against the vendor, and then I search out any past reason or another. Eventually, the vendor would not customers I can find to see what type of service they return our e-mails or answer phone calls inquiring as received and if they were satisfied with the work to when we would get this work done. I was finally performed. Secondly, I look at the amount of time the able to reach the business owner, and he gave me vendor has been in business and check to insure that every excuse imaginable as to why this had dragged they are a legitimate, licensed business with ample out for months. He apologized profusely and set a insurance to cover property damage/loss and date of February 23 to begin installation. Well, you coverage for employees performing the work. Once guessed it, two cancellations later, they finally these requirements have been met, the vendor’s bid is showed up to do the work on February 27. accepted for consideration. The electricians that came were temporary Late last fall, we began experiencing some employees, laid off from other electrical contractors issues with our electrical service at the WDCX-FM due to little work over the winter months. I came to transmitter site. The main disconnect was heating up find out that the company we hired evidently is due to excessive current draw, especially while the having financial problems and in all probability did A/C units were running full bore. Each time the A/C not have the money to purchase the materials to do kicked on, the in-rush current would for a short time the job. The workmen spoke of bounced paychecks far exceed the current capabilities of the cartridge and suppliers suspending credit to the business owner fuses, and eventually the fuses would be fatigued to for non-payment for supplies. Had we known all this, the point of failure. The heat measured with an his company would not have been considered for infrared digital thermometer at the disconnect and hire. This was definitely a learning experience, and meter socket would exceed 200 degrees at times, and one I personally hope never happens again! as the fuse clips got hotter, they would expand and 2 The Local Oscillator March 2018 into the interface via Team Viewer to make final adjustments. I cannot begin to say how pleased I am with this processor! It literally blows the Orban Optimod out of the water! Due to bandwidth restrictions, the best we could do with the Optimod was 4 kHz bandwidth, anything higher would exceed what the antenna system could handle and cause the transmitter to fold back with VSWR faults. The Omnia.9 is set up for 5 kHz bandwidth, with no VSWR faults on the transmitter at all! Modulation levels are very good, and we are able to make 125% The new 300-amp service and meter base at positive peaks and 98% negative, levels that we could WDCX-FM not make with the Orban. In other news, we recently installed our new The overall audio quality is excellent, and Omnia.9 audio processor at the WDCZ(AM) we definitely have level dominance over all the other transmitter site. The unit was originally shipped to AMs on the dial. Brian Kerkan again did a stellar job Brian Kerkan in Detroit for him to pre-setup this on setting up this processor! His knowledge of the complicated processor, and once he generically set it Omnia processors is an asset to CBC, and I would up, shipped it on to us for installation. Once I highly recommend that if you have any issues with received it, I set it up to where Brian could remote your Omnia, give Brian a call! The Motown Update by Brian Kerkan, CBTE, CBNT Chief Engineer, CBC – Detroit The thaw has begun here in the Motor City. monitor connector inside, and several USB ports, so I The past month has been full of projects, and a trip to hooked up a monitor and powered up the exporter. Orlando for Hamcation. It was a nice break from the While watching the boot process, I noticed cold weather, and my assistant, that it hung and seemed to have a Steve, passed his Technician corrupted config.