[GreenKeys] 1khz reference tone...

[Larry Tighe]

HI Ken,

Many telephone companies had a 1KHz tone test line.  Here it was always xxx-xxx-9971.  Give your local exchange a try by dialing xxx-9971 and see if the tone is there.

larry
  ----- Original Message ----- 
  From: Kenneth Gartland 
  To: greenkeys 
  Sent: Tuesday, June 06, 2017 9:23 AM
  Subject: [GreenKeys] 1khz reference tone...


  'Morning all!


  Looking for an on-line Internet source for a 1khz 
  unmodulated reference tone...

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