4BC IN BRISBAINE, QUEENSLAND AUSTRALIA RESTORES FULL STEREO SEPARATION TO THEIR BROADCAST DAY
We received some very nice written correspondence from Brandon Gordon (VK4VIP) to confirm that 4BC has restored full stereophonic sound to their listeners on 1116 kHz from Brisbane, Queensland, Australia. This station has a news\talk format. Per Brandon: "Hi, Just wanted to send you an e-mail to say great to see a list of stations that still transmit C-QuAM, and also to advise of a station here in Australia that still transmits AM STEREO. I can confirm it has the [stereo] pilot, et cetera- as I am currently on the technical team at the station. We have today fixed up the audio, so it is centered when received in stereo. We have plans to upgrade the STL back to stereo in the future, as we had an equipment failure before I started at the station, which forced the STL back to mono, and hence, no stereo separation on-air. We, however, do have stereo audio to the transmitter site, and on the air when on our I.P line. We are running two Nautel XL12 into a combiner which has the stereo exciter board installed from factory."
A shout out to all broadcasters: Take 4BC's lead- look at your current AM medium wave transmitter to see if it has the ability to transmit C-QuAM stereophonic sound to your listeners. Most newer Nautel and Broadcast Electronics transmitters provide the option for AM stereo C-QuAM sound. If you have a flatly tuned non-directional antenna array, it is even easier to get ON-AIR with stereo. Let meduci know if your radio station continues to carry the torch, and is not profiled here. We will add you! Thank you. Please write to meduci, and do not forget to mention "AM stereo" (without quotes) in the subject line. Write to amstereo'AT'meduci.com (replace 'AT' with the @ sign).
Simply scan QR code using your smart phone or mobile device QR Scanner to send e-mail to meduci:
"BATTLE OF THE BANDS"-- DIGITAL DAB+ VERSUS ANALOG C-QuAM
HIGH QUALITY PRO1k AND AMX2000 TUNERS WERE FEATURED IN Australian hi-fi MAGAZINE JULY-AUGUST 2011 ISSUE !!
Australian hi-fi magazine is Australia's number-one premiere guide to home audio and home theatre technology. In the Australian hi-fi July-August 2011 magazine issue, beginning on page 82, Timoshenko Aslanides discusses analog AM stereo C-QuAM broadcasting to the more recent broadcasts from AM medium wave stations using the new DAB+ digital stereo technology in Australia. Timoshenko listened to 2CA from Canberra using his meduci AMX2000 tuner, and he directly compared those analog stereo signals to the simultaneous DAB+ digital audio stereo broadcasts. Can you guess which technology was victorious in the listening wars, and which won the battle of the radio bands? First, order this magazine copy from Zinio from this link>> Battle of the Bands and then read this feature article here>> at this link. 2CA, as heard at 1053 kHz in Canberra, Australian Capital Territory, later discontinued their analog C-QuAM stereo broadcasts to their listeners in October 2017 due to some fault in the audio chain, or with their Harris C-QuAM stereo exciter. 2CA Program Director Marc McCreadie said that he did not have the knowledge to repair the fault. He requested for some technical assistance. Please contact Marc to get 2CA returned to analog AM stereo.
WJIB RE-LAUNCHES AM STEREO BROADCASTS TO THE GREATER BOSTON AREA IN 2016!!
WJIB "THE memories STATION" returned AM stereo C-QuAM broadcasts playing adult standards music since 2016, after a local electrical power surge to the collocated studio and transmitter location deemed the stereo exciter and other transmission components beyond economical repair years ago. WJIB is owned by Bob Bittner Broadcasting, and is licensed to Cambridge, Massachusetts, serving the greater Boston DMA!
WOAP "SUPER HITS 1080" RETURNS AM STEREO MUSIC IN C-QuAM FORMAT TO THEIR MANY LISTENERS IN OWOSSO, MID-MICHIGAN!
WOAP station management confirms that on Monday, February 2th, 2015 "SUPER HITS WOAP STEREO 1080" stereo music is broadcasting again from their huge tower in Owosso, Michigan USA. WOAP has a very wide listening range, serving Owosso, Corunna, Shiawassee County, and approximately 475,000 potential listeners during the day. If you love super hit music, you will be crazy about SUPER HITS WOAP STEREO 1080!
According to reception reports -- from Lansing, Grand Rapids, Saginaw, and Flint, to other Michigan cities -- they have not lost any coverage and signal strength since their AM stereo signal was re-launched!
You can also stream in stereo world-wide at>> SUPER HITS WOAP STEREO 1080. Their full program schedule is also on display.
Congratulations WOAP on your successful re-launch of your AM stereo station! Thank you for sharing this fantastic grand news! Your music format is ideal for AM stereo. Do you remember that there was a one year stint back in February 2012 as "Michigan's BIG Oldies music? Please let the stereo music stay ON-AIR this time!
CONGRATULATIONS TO WOKR(AM) IN ROCHESTER, NEW YORK -- NOW BROADCASTING CBS SPORTS RADIO NETWORK IN C-QuAM STEREO !!
We received a very nice note from Brian P. McGlynn (President / CEO at Genesee Media Corporation) on Sunday, February 22nd, 2015 confirming that WOKR(AM) "THE TEAM 1310" is now broadcasting sports from national CBS Sports Radio Network in Canandaigua, New York USA. Brian says, "This year, I hope to switch WDNY and WRSB to stereo as well. The equipment is in place for WDNY, whereas WRSB needs some custom equipment to boost the PWM modulator to 72vpp to interface with the Nautel rig." WOKR also operates their mono FM translator station, temporarily being fed off-air from WRSB-AM using Carver TX-11a tuner. Conratulations, Brian and WRSB staff. Keep up the great work.
WION "I-1430" HAS "SEEN THE LIGHT" (THE STEREO LIGHT, THAT IS) AND CELEBRATED SIXTY YEARS OF BROADCASTING WITH AM STEREO LAUNCH AND FULL PUBLIC STREAMING DIRECTLY TAKEN FROM THEIR C-QuAM AM STEREO TUNER !!
We received e-mail on February 4th, 2013 from Jim Carlyle, owner of WION-AM, in Ionia, Michigan USA that "America's Biggest Little Radio Station" celebrated sixty years of broadcasting on February 1st, 2013 and launched full public streaming from their C-QuAM AM stereo tuner on the same day! Listeners can actually hear the high fidelity sound directly taken off-the-air from the local AM stereo broadcast! This is the actual "over the air" signal received in the famous WION studios! Jim says, "We chose to 'show off' what AM stereo can be in this stream, instead of selecting FM or a live 'board' feed...in the hopes people will notice the quality we offer, and know that AM in stereo can rival other broadcast means! Our goal is to be the BEST sounding AM stereo anywhere!" WION is full-service radio station, serving mid-Michigan with C-QuAM AM stereo! Enjoy their vast library of adult hits, classic rock music, and the occasional golden oldie! You can listen world-wide at>> WION AM STEREO. Jim, thank you for providing AM stereo music to your listeners and community, and here is to sixty more years of broadcasting! Congratulations on your successful launch for your AM stereo station! Thank you for sharing this fantastic grand news! Your music format is ideal for AM stereo.
KQWB AM 1660kHz IN WEST FARGO, NORTH DAKOTA RE-LAUNCHES THEIR AM STEREO MUSIC FORMAT
Thank you to Jake Bechtold, CBT/assistant engineer, for re-launching C-QuAM stereo for their listeners. In classic "out of the box" thinking, the engineering staff placed the KQWB(AM) stereo feed from their studio onto their KBVB FM HD-3 subchannel, using the Telos Z/IP One codec from the studio to the KBVB transmitter. Sony XDR-F1HD tuner was used to receive the FM HD-3 signal directly OFF-AIR to feed the KQWB(AM) stereo transmitter!
WRDN(AM) "REEL COUNTRY" IN DURAND, WISCONSIN LAUNCHED C-QuAM STEREO BROADCASTS FOR THEIR LISTENERS
Brian Winnekins launched C-QuAM high fidelity "REEL COUNTRY" stereo at WRDN(AM) in Durand, Wisconsin USA. Brian recently hosted a visit from FCC Chairman Ajit Pai. Brian is using CRL Systems AM Stereo gear. Brian received one Matrix Processor, two Spectral Energy Processors (one for each stereo channel), as well as Audio Preparation Processor, and Stereo Modulation Processor, all manufactured by CRL Systems. We are certain that WRDN listeners will rejoice in the streets!
WCOR 1490 IN LEBANON, TENNESSEE LAUNCHED PURE COUNTRY -- REAL COUNTRY MUSIC -- IN FABULOUS C-QuAM AM STEREO !!!
WCOR(AM) in Lebanon, Tennessee has returned AM stereo to their listeners. WCOR features the Real Country format, which blends the traditional sound from today's hottest new artists, in combination with the great country music classics.
This is a recording of WCOR(AM) in the early morning hours of January 12, 2014. WCOR is a class-C AM broadcast station located in Lebanon, Tennessee operating at 1,000 watts full time, non-directional day and night antenna patterns, and the tower is located approximately 29 miles east of Nashville, Tennessee USA. WCOR is owned by Bay-Pointe Broadcasting company, and broadcasts various community related programs, as well as locally produced shows on a daily basis. WCOR simulcasts sister station WANT(FM) for most of its broadcast day, and carries Cumulus Media's Real Country format. Programing differs in some day parts, usually to carry local sports programing.LISTEN TO ALMOST THIRTY MINUTES OF
This air check was recorded using a Tascam DR-07 digital recorder in uncompressed PCM from a Sony SRF-A100 AM Stereo "micro boombox" portable radio. A great example of how great AM Stereo sounds starts at 16 minutes, but the entire recording sounds very good. This file is uploaded in uncompressed PCM. YouTube's processing does introduce some compression. Also, the Sony radio has a touch of distortion from the C-QuAM decoding process, so the distortion heard is due to the radio, and not from WCOR. With a wideband high fidelity AM tuner, it is very easy to hear how AM stations sound- with or without AM stereo- despite the current NRSC bandwidth limitations. Try getting that with digital HD Radio on the AM MW broadcast band, especially with the widespread use of Spectral Band Replication (or SBR), which is their best guess for how the high audio frequencies should be heard!
How does WCOR transmit AM STEREO? Station engineering decided to activate the stereo encoder card that was designed and intended for use with their new modern Broadcast Electronics AM transmitter. Since WCOR has non-directional antenna pattern, simply utilizing one tower, it was very easy to launch the C-QuAM format with minimal tuning and other effort. Also, the air studio is wired for stereo, and nearly collocated with the AM transmitter, so an expensive studio-to-transmitter link was unnecessary. Try to give the station a listen one day or night from your AM stereo receiver or tuner! If you do not have an AM stereo tuner, then please contact meduci to remedy that situation!
KYET AM STEREO 1170 BROADCASTS C-QuAM STEREO WITH CLASSIC TRADITIONAL COUNTRY MUSIC FORMAT INTO MOHAVE COUNTY ARIZONA!
KYET(AM) in Kingman, Arizona signed on for the first time at 1170 kHz on October 14th, 2012. KYET is owned by broadcast veteran Joe Hart and Route 66 Broadcasting company. They have Harris DX-10 transmitter combined with the ever elusive Harris STX-1B AM stereo C-QuAM exciter. KYET is licensed by the FCC for 6kW days and one-watt nights into an omni-directional antenna pattern.
KYET's Chief Engineer says that they experienced very little difficulty in making their Harris transmitter play with the Harris stereo exciter. Rather, it was much more challenging to get the stereophonic sound from the studio to their transmitter site. "Most AM stations only need either a single narrow-band STL channel, or a dry telco circuit, or even in some cases, a POTS [plain old telephone service] line. But because we are an AM stereo music station, we need the best sounding dual-channel STL possible." KYET's transmitter is approximately 2.5 miles from the studio, and it sits on the other side of a mountain pass. So not even the tip of the 190-foot tall tower, near the junction of US93 and SR68, is visible from the roof. "Because there was no [telephone] service to our area, and the nearest telco junction box is 7,500 feet away, the local phone company wanted $42,000 to run a single residential grade phone line, with no guarantee DSL would work on it. About the only thing we could do was to partner with Datamax Wireless, who brings us 20Mbps up and down to make the I.P-based STL run. And that is actually better than the DSL connection we have at the station," says KYET's Chief Engineer. "We are currently using a pair of Barix Exstreamer 500's running MP3 compression 16-bit Stereo 48kHz, at about 256kbps, and it sounds pretty good when it hits the air. ... We are using the built-in limiter, typically running at six to 10dB of compression, and there is no other audio enhancement gear in the air chain." Since the exciter sat unused for about 12 years, the power supply required some initial repair, and the exciter was also recently modified to provide the proper NRSC pre-emphasis curve, with 10 kHz low-pass filtering.
KYET claims to be heard in Barstow, California, Wickenburg, California and loud and clear to north Las Vegas, Nevada. KYET will originate local news and talk, while maintaining the traditional country music format.
ALBUM ROCK 540 WXYG LAUNCHED AM STEREO IN SAUK RAPIDS, MINNESOTA!
WXYG "THE GOAT" now broadcasts magnificent C-QuAM AM STEREO to their many listeners in St. Cloud and all of central Minnesota, as of Friday, May 3, 2013. WXYG formats album oriented rock music, playing from a large library of deep classic rock album cuts. WXYG is locally owned and operated, not a satellite feed from somewhere. WXYG's goal is to make the music they play an (un)boring listening experience. There is so much great music from the golden age of the progressive rock era. Therefore, this is not a classic rock station where they play the same 200 songs over and over again. Now presenting a new age in broadcast radio - WXYG returns the power of great music to the people. WXYG was officially launched at 5:40 A.M. on June 25, 2011 -- which was owner Herb Hoppe's 77th birthday! WXYG has Nautel ND-1 transmitter with Gates BC-1G as back-up transmitter. WXYG power is 250 watts day/night using four towers on the daytime pattern, as well as three towers on the night pattern. You can listen world-wide at>> WXYG AM STEREO.