[Indy1808]

I go to 40-50 open wheel races a year.
I heard rumor there is a device made that I can sit in the stands & receive real time scoring from the transponders with group qualifying. Is this true or impossible?
This would relieve me from straining to hear announcers at tracks with antiquated speakers/sound systems or bad timing and greatly enhance my score keeping abilities.
Please advise or let me know who to ask.
I contacted Amb-it (Transponders) last year & again this year, with no response.
Thank you for your time.