Unknown NFM Squelch system

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Unknown NFM Squelch system
Unk sqlench.jpg
Frequencies 855.1119 MHz,855.3618 MHz
Frequency Range 855.1119 MHz - 855.3618 MHz
Mode NFM
Modulation FM
ACF
Bandwidth 10 kHz
Location New York City, USA
Short Description Very low hum, not a constant tone. Repeating pulses, and pulses seem to differ between different NFM channels of the system being used. Possible squelching, XTCSS?
I/Q Raw Recording Download file
Audio Sample

Description[edit]

Very low hum, not a constant tone. Repeating pulses, and pulses seem to differ between different NFMNarrowband Frequency Modulation channels of the system being used. Possible squelching, XTCSS?

This is DCS. --Cartoonman (talk) 12:49, 7 January 2016 (NZDT)

Samples[edit]

Sample 1 Sample 2
Unk squelch 1.jpg
Unk squelch 2.jpg