Tone sequence is .7 seconds of 2800 Hz followed by 6 seconds of 2610 Hz. Does anyone have any idea what paging format this is? I don't think it's Motorola, GE, or Plectron, at least as far as I can tell. It's really high frequency for audio via radio...just wondering if anyone else has run into something like this. Any idea what it is or where it came from? Thanks in advance.
Andy
Mystery Two-Tone Format
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Mystery Two-Tone Format
Is it for fire alerting, civil defense sirens, or something else? Could it be for Knox boxes?
Re: Mystery Two-Tone Format
It's fire alerting. The department in question uses Kenwood portables for paging.
Andy
Andy
Re: Mystery Two-Tone Format
How about "Reach" format?
page 3 of http://www.midians.com/pdf/tone_signaling.pdf has 2799 and 2612 Hz tones.
page 3 of http://www.midians.com/pdf/tone_signaling.pdf has 2799 and 2612 Hz tones.
Re: Mystery Two-Tone Format
Sounds like your basic tone remote. Is the 2800 louder than the 2610, or vice-versa?aaknitt wrote:Tone sequence is .7 seconds of 2800 Hz followed by 6 seconds of 2610 Hz. Does anyone have any idea what paging format this is?
This is my opinion, not Aeroflex's.
I WILL NOT give you proprietary information. I make too much money to jeopardize my job.
I AM NOT the Service department: You want official info, manuals, service info, parts, calibration, etc., contact Aeroflex directly, please.
I WILL NOT give you proprietary information. I make too much money to jeopardize my job.
I AM NOT the Service department: You want official info, manuals, service info, parts, calibration, etc., contact Aeroflex directly, please.
Re: Mystery Two-Tone Format
That could be, although the timing doesn't align with what's shown in the table. Thanks for the tip...I was looking at the chart on their website and that chart doesn't show the long tone tones like the PDF does.RFguy wrote:How about "Reach" format?
page 3 of http://www.midians.com/pdf/tone_signaling.pdf has 2799 and 2612 Hz tones.
I was kind of thinking the same thing, but why would one use a tone remote for paging over the air? The 2610 is slightly louder than the 2800 (I'd need to recapture them to determine exactly how much louder). They're both pretty low compared to most two-tone sequences, presumably because they're getting rolled off in the audio stages of the radios?Wowbagger wrote:Sounds like your basic tone remote. Is the 2800 louder than the 2610, or vice-versa?
At this point I'm thinking it's some kind of permutation of the Reach format.
Andy