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What is " Football knockdown"

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RFguy
Posts: 1294
Joined: Wed Dec 21, 2005 6:17 am

What is " Football knockdown"

Postby RFguy » Fri Aug 26, 2016 4:00 pm

I just saw a service bulletin that indicates that "Football Knockdown is not functional in MOTOTRBO™ SLR5000 Series Repeaters".

OK, whats football knockdown? I looked in the system planner, and found nothing.

Vocoder
Posts: 4
Joined: Fri Jun 09, 2006 4:32 pm

Re: What is " Football knockdown"

Postby Vocoder » Sun Aug 28, 2016 4:07 pm

This is used by the NFL to ensure compliance with their team communications and "coach-to-player" rules. One such rule requires that all communications between the coach and player are disabled when there are 15 seconds or less on the play clock.

Pin 17 on the rear connector is used for this. When the pin is active, ALL TX and RX operations are suspended, including CWID. Stadium clocks, TV timers, and other timing sources feed the pin.

n1gtl
Posts: 91
Joined: Tue Mar 25, 2008 12:43 pm
What radios do you own?: XPR5550, XPR7550e

Re: What is " Football knockdown"

Postby n1gtl » Thu Sep 01, 2016 12:12 pm

I saw that option in the dropdown and wondered what that could possibly be for. Thanks for that info.

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firemedic4
Posts: 1128
Joined: Sat Dec 29, 2001 4:00 pm

Re: What is " Football knockdown"

Postby firemedic4 » Wed Nov 16, 2016 5:33 am

We used to use R1225 repeaters for the nfl radio system. this year they went turbo.


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