POCSAG at 750 baud?

[KF0BF]

Has anyone ever seen a POCSAG variation that uses 750 baud? I regularly decode 512 and 1200 baud pages but, tonight, while listening to the audio, I heard a different pager tone, one that my decode software ignored. Made some adjustments to my software and discovered that was a page apparently at 750 baud. I was skeptical at first, until I saw that the data started with the standard POCSAG FSC bit string. It appears to be a list of 15-bit words. Here's an excerpt from the output from my decoder:

01111100110100100001010111011000 FSC
101010101010101010111111100000001110011010110110100000011011011011101110001111111111110000000110100110100000
000000011011110
000000011111110
000000011111111
000000111111111
000000101111110
000000011111100
.
.
.

Any ideas?

 

[nd5y]

What frequency?
What are you using to decode it?

 

[KF0BF]

What frequency?
What are you using to decode it?

453 MHz. I record the audio overnight and decode it with some home-build Python code.