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SR-303 SportSync Digitally tuned AM/FM Radio with 16 Seconds of Audio Delay
SR-303 SportSync Digitally tuned AM/FM Radio with 16 Seconds of Audio Delay

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The SR-303 is discontinued has been replaced by the SR-404 SportSync Radio

Product Code: 58-561912


Listen to Your Favorite Radio Broadcasters Call Games in Sync with Your TV!

Now, with the all-new SportSync SR-303 AM/FM Delay Radio, you can turn down the sound on your TV and watch the game while listening to your favorite radio announcers.

Radio play-by-play announcers provide the most descriptive, interesting and fun calls of pro or college sports events. But radio signals almost always run several seconds ahead of TV broadcasts which must pass through cable, satellite or HDTV systems. Before, if you tried to listen on the radio and watch on TV, you heard each play called on the radio well in advance of the same action you saw on TV….it took all the fun out of the game. Now, with the SportSync SR-303, you can delay the radio audio up to 16 seconds to exactly match what you're watching on TV.

• AM / FM / SW PLL Digital Radio
• Up to 16 Seconds of Audio Delay in adjustable half-second increments
• 520 - 1710 KHz AM / 88- 108 MHz FM
* Shortwave Radio Bands up to 22 MHz
• 25 Memory Presets for each Radio Band
• LCD Display with Backlighting
• Tuning Seek Function
• Clock Radio with Alarm and Snooze
• Sleep Function (up to 90 minutes)
• Signal Strength Meter
• Battery Level Indicator
• Telescoping FM Antenna + External Jack
• Powerful Internal AM Ferrite Loop Antenna
• Headphone Jack
• External Aux Audio Input Delay Option
• May Connect to Home Theater Systems (using delayed Sportsync radio audio)
• Easy to Carry Handle
• Optional Accessories – sold separately:
AC Adapter, Earphone, Home Theater Connection Cable
Requires four D-cell batteries, not included

How it Works - It's So Easy to Use!

Simply adjust the display slider to listen to the game's radio broadcast synchronized with the action on TV.

The delay slider allows you to apply from zero to sixteen seconds of delay to any radio broadcast, either AM or FM. It usually just takes one or two game plays to match the radio audio to the TV. Sometimes you can even match the sound of a referee's whistle or the bat hitting the pitched ball, for example. Anyone can use the SportSync, from practically the youngest to the oldest fan. It's simple! Note: In a few rare occasions the TV delay will exceed sixteen seconds or in even more rare occurrences the radio will run be behind the TV.

You can use the optional home theater cable to connect the SportSync to the Auxiliary input of your stereo system so you can watch the game on your big-screen TV while listening to the delayed and in-sync radio audio through your home theater speakers (with mono audio).

Why You Need It

Radio Broadcasts Almost Always Run Ahead of TV Broadcasts

Local radio broadcasts of sports events are just about always in "real time." So many people bring radios to sporting events to listen to the radio play-by-play call that the radio stations insure that their signals are going from the microphone to the transmitter and out to your radio at the speed of light - in other words in real time, without any delay.

National radio broadcasts are sometimes delayed slightly because signals are uplinked and downlinked through a satellite to your local radio station before being transmitted to your radio. But in the main, you hear the radio call the moment the action actually occurs.

TV signals require a much greater amount of processing. First, with video, there is much more bandwidth and processing required. Second, signals from the ballpark will generally be fed to the director's truck and up through a satellite and back down to a station or to a cable system "head-end" where the signals are then sent down the cable wires strung across your city. The cable signal then must be decoded by your cable TV box. If you have satellite TV there is another satellite up and downlink involved before the signal reaches you. All this processing, while happening very fast, ultimately takes some number of seconds and thus you end up with a delay. (Further delay may be built in to some TV broadcasts because of the need to insure no inappropriate words are spoken over-the-air or pictures of wardrobe malfunctions are seen.)

In the end the TV signals take longer to reach your TV screen than the broadcast radio signal. That's why you could no longer simply "Turn the sound down on your TV and turn your radio up," like you we were all instructed years ago……until now with the SportSync Radio from Scanner Master!


• AM / FM / SW PLL Digital Radio
• Up to 16 Seconds of Audio Delay
in adjustable half-second increments
• 520 - 1710 KHz AM / 88- 108 MHz FM
* Shortwave Radio Bands up to 22 MHz
• 25 Memory Presets for each Radio Band

SportSync Radio SR-303 Manual


Tech Notes and Frequently Asked Questions

SportSyncRadio comes with a 30 day money back guarantee and a 90 day parts and labor warranty from Scanner Master. Please save your original receipt of purchase and include a copy with any warranty repair request. The warranty covers any and all defects but does not cover user-caused damage such as drops, liquid spills and the like. Send e-mail to Scanner Master requesting a warranty repair authorization request before sending back your radio.


Radio reception can vary location by location. If you are having problems receiving a station try aiming the radio in different directions on the AM band and extending the telescoping antenna for FM band reception. Other things to try:

a. Make sure the switch on the right side is in the down position and set to the internal antenna.
b. Move radio away from a room with florescent lights, computers or other devices that might affect reception.
c. For FM stations try extending and raising the telescoping antenna
d. For AM stations try swiveling the radio as the internal ferrite loop antenna is directional.
e. For shortwave stations try all of the above. The radio is designed primarily for the strongest shortwave stations.

If you are unsure whether the delay for the sporting events you are watching is greater than 16 seconds (the difference in time between what you hear on a regular radio and what you are watching on TV) please view a game before ordering Sportsync and time the difference. The delays may vary slightly game to game but if the delay is under 16 seconds then in all likelihood it will remain so.

Note that at times national broadcasts will delay much longer than local broadcasts. So a delay on a local game may be 5 seconds for example and 14 seconds for the national TV broadcast. Satellite TV delays are typically longer than cable or over-the-air TV broadcasts delays. Sometimes even greater than 16 seconds. The delays do vary from one sport to another.

If the delay is longer than 16 seconds typically for the sport you're interested in, there is unfortunately nothing that SportSync can do to extend the amount of delay that the radio provides. Delays longer than 16 seconds are rare. In very rare cases the radio broadcast will run behind the TV. This is due to excessive time delays built in to the radio broadcast that SportSync has no control over. The best answer in these cases is to delay the TV signal by using a DVR tuner box. By combining a DVR tuner with a Sportsync you can zero in to exactly sync in almost all cases.

By delaying the audio the radio is converting it from analog to digital, compressing it and storing it in memory in a chip in the radio. When it's played out it has to convert the digital bits back to analog voice and the system trims off the high frequencies in the voice to make this all work and fit in memory. Therefore the delayed audio is slightly muted.

Make sure you have new D-cell batteries of the same brand installed in the correct way in the battery holder. Also you may want to try an optional AC adapter.

Average Customer Review: Average Customer Review: 4 of 5 4 of 5 Total Reviews: 20 Write a review.

  0 of 0 people found the following review helpful:
2 of 5 SR-303 SportSync Digitally tuned AM/FM Radio December 25, 2017
Reviewer: Thomas White from Westerville, OH United States  
The radio sort of works. It has a significant problem with buffer overruns when being used to delay. The sound quality on delay is significantly poorer also. It frequently switches to real time and then recovers the delay.  I am not happy with the radio and really do not understand why it does not perform better  Even given that I intend to keep it because it is a big improvement to the sound being several seconds ahead of the picture or irritating TV announcers. Is the radio working as well as it should or do I have an defective unit I should return?? I would appreciate some feedback

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  0 of 0 people found the following review helpful:
2 of 5 radio December 20, 2017
Reviewer: Anonymous Person from Huxley, IA United States  
Last game the delay was way more than 16 seconds.  We were hoping to sync it to listen to local announcers, not the network ones who can't shut up.

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  0 of 0 people found the following review helpful:
5 of 5 AWESOME!!!! December 12, 2017
Reviewer: RUSSELL HANEY from HARTSELLE, AL United States  
Absolutely great product..
Don't care for the television broadcasters on my ballgames.  Thanks for a great product!!!

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  1 of 1 people found the following review helpful:
2 of 5 Same bad quality-UPDATED September 1, 2017
Reviewer: mayorsmall from Chicago, IL United States  
I've had all 3 versions of this radio. I had hoped this was the best effort on this radio so far. NO. **UPDATE- 3/15/2017- The radio fell apart at the extendable antenna again* it came right out of the radio.  I was wrong. Same old lack of quality. It will work for awhile. Be prepared to watch it fall apart. I changed my rating from 4 to 2 and only gets 2 because the new delay works well. Oh well. pfffft.

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  0 of 0 people found the following review helpful:
5 of 5 AM/FM radio August 9, 2017
Reviewer: Gerald Gernant from Geneseo, IL United States  
Great sound and a high quality radio. Happy with the purchase.

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