The Magazine for TV and FM DXers November 2020 The Official Publication of the Worldwide TV-FM DX Association Eunice, LA October 2020 Hurricane Delta Why KEUN-FM was granted a Silent STA! The Boxes Are Here! WHO WILL BE THE FIRST TO SEE CUBAN DTV? (more inside) THE VHF-UHF DIGEST The Worldwide TV-FM DX Association Serving the TV, FM, 30-50mhz Utility and Weather Radio DXer since 1968 THE VHF-UHF DIGEST IS THE OFFICIAL PUBLICATION OF THE WORLDWIDE TV-FM DX ASSOCIATION DEDICATED TO THE OBSERVATION AND STUDY OF THE PROPAGATION OF LONG DISTANCE TELEVISION AND FM BROADCASTING SIGNALS AT VHF AND UHF. WTFDA IS GOVERNED BY A BOARD OF DIRECTORS: DOUG SMITH, SAUL CHERNOS, KEITH MCGINNIS, JAMES THOMAS AND MIKE BUGAJ Treasurer: Keith McGinnis wtfda.org/info Webmaster: Tim McVey Forum Site Administrator: Chris Cervantez Creative Director: Saul Chernos Editorial Staff: Jeff Kruszka, Keith McGinnis, Fred Nordquist, Nick Langan, Doug Smith, John Zondlo and Mike Bugaj The WTFDA Board of Directors Doug Smith Saul Chernos James Thomas Keith McGinnis Mike Bugaj [email protected] [email protected] [email protected] [email protected] [email protected] Renewals by mail: Send to WTFDA, P.O. Box 501, Somersville, CT 06072. Check or MO for $10 payable to WTFDA. Renewals by Paypal: Send your dues ($10USD) from the Paypal website to [email protected] or go to https://www.paypal.me/WTFDA and type 10.00 or 20.00 for two years in the box. Our WTFDA.org website webmaster is Tim McVey, [email protected]. Our WTFDA Forums webmaster is Chris Cervantez, [email protected]. Fred Nordquist is in charge of club statistics at [email protected] Our email reflector is on Googlegroups. To join, send an email to WTFDA+[email protected] Visit our club website at http://www.wtfda.org . Participate in our forums at http://forums.wtfda.org. Our real-time (prop logger) bulletin board is located at http://wtfdadxbb.vci.net. Only WTFDA members can participate. You can find WTFDA on Facebook. Our group is called TV and FM Dxing. This is a public group. We also have a private group called WTFDA just for WTFDA Members. The WTFDA FM Database is administered and updated by your fellow WTFDA members. It is completely free to use and can serve up to 500 users a day during the spring, summer and fall. THE DATABASE CREW Bill Hale Mike Bugaj Jim Thomas Fred Nordquist Nick Langan VHF-UHF Digest 2 November 2020 Welcome to the Mailbox for November. This month will feature an election and a Thanksgiving like no other. I hope everyone has a good Thanksgiving, stays safe and healthy. And let’s hope for a little tropo or off-season Es! Our good ole PO Box 501 doesn’t get much incoming mail anymore, since practically everyone uses Paypal for sending in their dues, so I seldom check it more than every week or two. Since the first of the month I’ve received dues from David Lang, Stephen Kellat (welcome, Steve), William Mitchell, Ron Cesarek, myself, John Lentz, Peter Giacopelli, Greg Coniglio (welcome back!), Todd Brandenburg, Bob Seaman, Scott Levitt, Albert Earnhardt, Doug Speheger and Andy Bolin. Thank you all for staying with WTFDA for another year. A special welcome to Stephen Kellat and a big welcome back to Greg! Bill Nollman posted on the WTFDA FB group about the Elad FDM-S3 now available for purchase. He writes “The ELAD S3 is finally starting to roll out. ELAD tells me they have a lot of people wanting one so they are taking pre- orders to determine the order. They just posted the link so if you want a 24MHz SDR sign up now! Just be sure your Desktop/Laptop has the power to handle it. For just playback most decent computer will do. For recording at 24MHz only a dedicated SSD will do. FYI a 2TB SSD holds 3 hours, 45 minutes at 24MHz. I can offer suggestions if you need them as I've been running a beta unit for 2 years and run into all kinds of fun bumps in the road. But it is completely worth it!” According to Elad: ELAD FDM-S3 Preorder for USA/Canada is now setup, just select version TXCO or OXCO and walk through process, it will show free shipping until we have the product in stock. https://shop.elad-usa.com/sdr-radio/ The preorder is so we can work out how many TXCO or OXCO versions need to be shipped The TXCO option can be used without the GPS antenna, optional antenna The OXCO option includes the GPS antenna So, if you want one, go get one! Ever since Cuba decided to transition over to DTV, TV Dxers in the southern parts of the USA have been trying to find a converter box that would decode the Cuban DTMB standard for use with US televisions. One of them was Doug Allen in Inman, SC. Well, he found one and he has written extensively about it on the WTFDA email list and I’m printing it here because others would be interested in hearing about it. VHF-UHF Digest 3 November 2020 After years of seeing minimum orders of 100 or 1000 units, I finally found, ordered, and received LUNDA DTMB tuners from China which I ordered October 4 and will be using and evaluating best I can. They are advertised as being tuners for Cuba. I've been trying for several years to buy a DTMB tuner, but every DTMB tuner I found available had to be bought in quantity until last month when I saw Lunda AVS+ DT-06 tuners available on the Alibaba site for $11.00 with a minimum order of 1 and shipping charges of about 23.00. After some study, I ordered two of them, wondering what you could possibly get for $11.00. The answer appears to be a good tuner made for the Cuban and other DTMB markets with easy 6 , 7, and 8 mHz bandwidth selection (6 mHz for Cuba). I would encourage anyone with the faintest chance of receiving Cuba UHF to buy the Lunda tuner. I'm 840 miles from Cuba with an excellent negative horizon in that direction and have received Miami and Naples stations many times around 600+ miles. My first efforts to use the tuner were disappointing and, of course, I have no way to know for sure it is working unless I receive Cuba! The tuner comes with full a function controller, AV cables, and an HDMI cable, all for $11.00. My first attempt was to use the tuner RF out to my analogue DXing TV, and old Sony WEGA. The tuner has an RF out jack, but I've been unsuccessful using it to my Sony's ch 3 or (any other ch). Using the AV cables to the Sony was only slightly better. There was a fast rolling, practically illegible signal with no way to keep it from rolling. So I tried the tuner with the HDMI cable to my living room Vizio TV and that worked fine. So did the AV cables to the Vizio. I have an old pawnshop bought, small-screen Magnavox TV. No HDMI, but the AV cables give me a satisfactory though not good picture. First with the Vizio connected to rabbit ears, and then with the Magnavox connected to my 2 x 91XGs, I found that the Menu, using the default English language, was easy to use, and there are signal strength (SS) and signal quality (SQ) bars. The SS bars show the local ATSC stations signal strength, 70, 80, 90, and above. Of course, there is zero SQ. The auto tune of course picked up no stations. Manual tune is easy and requires entering the low end frequency of the channel you want to receive such as 614 for ch38 or 692 for ch 51. One worrisome finding- the tuner showed significant SS on channels where there are no stations like ch 37. I have strong LTE signals now on ch ch 38 through 41, so they are unusable. Even channels 42 through 51 show a fluctuating signal strength, jumping up and down from around a minimum of about 40 up to around 70. Adding a CM LTE filter helped only a little. Adding a FM band block filter helped not at all. I live on a hilltop with two cellphone towers within 200 yards and suspect interference, intermod or overload from there. The HDHomeRun tuner seems to be much less affected by whatever this overload is. I will use my SDR radio to check the signals on these frequencies soon and also try other low pass and notch filters I have, then update this report. I'll also take some photos and present a similar report on our Facebook pages. Unfortunately I have only a limited number of open channels for DXing Cuba UHF DTMB, and the high powered Cuban stations on my open channels are all far away in central and southeastern Cuba. I am now set up using my 2 x 91XG and mast mounted preamp to splitter and both the HDHomeRun scanning tuner and one of my Lunda tuners. I will probably set up the other Lunda tuner to a dedicated 4 bay antenna pointed south toward Cuba. Doug Allen, Inman, SC EM85wb near the NC and GA borders VHF-UHF Digest 4 November 2020 THE SURVEY Last month we asked your opinion on the club and the V.U.D.