Communications Monitoring During The COVID-19 Emergency – National Guard

Frequency Ranges, Spacing, and Modes

30-88 MHz., FM and FHSS (Frequency Hopping Spread Spectrum), Usually 25 KHz. spacing, but can be as low as 5 KHz. Often encrypted. Unencrypted FM will have PL tone of 150 Hz. (Will decode as 151.4 Hz.) The usual frequencies in this range are:
30.000-30.550
32.000-33.000
36.000-37.000
38.000-39.000
40.000-42.000
46.600-47.000
49.600-50.000

138.000-144.000 MHz.
148.000-150.775 MHz.
AM (aircraft), FM, P25 Modes. Encryption possible, esp with P25

162.000-174.000 MHz.
Shared with other Federal agencies. FM and 25. Encryption possible.

225-380 MHz.
Military aviation (AM) and SATCOM (FM). FHSS and encryption possible.

380-400 MHz. – FM and P25. Possibly some aviation activity on AM. Encryption possible.

406-420 MHz. – Shared with other Federal agencies. FM and 25. Encryption possible.

Additionally you may see National Guard units on their state’s trunked radio system, interoperability, and DHS/OEM frequencies.

My initial advice would be to first sector search the listed sub-bands in the 30-88 MHz. spectrum, 138-144 MHz., and 148-150.775 MHz.

REFERENCE: https://lvassembly.files.wordpress.com/2018/07/consolidatedfreqs.pdf

ticom
Author: ticom

One Response to “Communications Monitoring During The COVID-19 Emergency – National Guard”

  1. A Connecticut Yankee Talks About COVID-19 – #3 – Guns and Police Scanners – Cyber-Tek: The Cyberpunk Technical Journal Says:

    […] has been a fair amount of discussion, mostly private, regarding an earlier post on National Guard communications monitoring. Based upon the information received, National Guard units are using dedicated talkgroups on their […]

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