National Interoperability

[Spirit]

On National Interoperability I have the Mode on Auto should it be on that one or something different?

 

[scanlist]

Which radio are you planing to use for monitoring them and are you looking at all bands or specific bands?

.

 

[Spirit]

scanlist, I'm using Pro-106/Pro-197. I might not hit anything on them, so I will see, I might not hit any of them. Is there any of these freq's that are in Northern Colorado area? Specific bands that I have below.

700 MHz Nationwide Air-Ground​

These channels are reserved for air-ground communications to be used by low-altitude aircraft and ground-based stations. Are they just for EMS or would any law enforcement or fire use them. if I don't use Auto do i just leave it blank?

Frequency	License	Type	Tone	Alpha Tag	Description	Mode	Tag
769.13125	RM	293 NAC	7AG58/58D	Air - Ground 58/58D	P25	Interop
769.63125	RM	293 NAC	7AG60/60D	Air - Ground 60/60D	P25	Interop
770.13125	RM	293 NAC	7AG67/67D	Air - Ground 67/67D	P25	Interop
770.63125	RM	293 NAC	7AG68/68D	Air - Ground 68/68D	P25	Interop
773.11875	RM	293 NAC	7AG78/78D	Air - Ground 78/78D	P25	Interop
773.61875	RM	293 NAC	7AG80/80D	Air - Ground 80/80D	P25	Interop
774.11875	RM	293 NAC	7AG85/85D	Air - Ground 85/85D	P25	Interop
774.61875	RM	293 NAC	7AG88/88D	Air - Ground 88/88D (Landing Zone)	P25	Interop

 

[Motoballa]

These are not covered by any blanket authorization, usage would require a license on these frequencies. Looking through the FCC database, nobody in Colorado has a license that covers these from what I'm seeing.

Of course that doesn't stop them from being used- I went to a Motorola Summit and a director at Barrett Communications (a Moto company) told everyone they can just pick a frequency and use it, no licensing required..

Doesn't hurt to scan them anyway. There are no licensee restrictions, any eligible public safety entity can license these.

 

[scanlist]

There is no common usage of any of those frequencies in this area. 99% of the time communications are either on
the statewide MAC talk-groups, patched Talk-groups from DTRS, Wyolink to FRCC or in the case of Larimer County the Mutual Aid Talk groups.

VFIRE-21 154.280 (carrier squelch) is a common channel used by VHF fire agencies in the mountainous regions.

STAC (listed below) is the most commonly used for air to ground in the middle of nowhere Weld County. Commonly referred to as "STAC D" over the air.

However you have to be very close to hear communications on these channels below.

851.100	WQTD797	M	293 NAC	CO SMPX1	Statewide Simplex 1	P25	Interop
851.750	WQTD797	M	293 NAC	CO SMPX2	Statewide Simplex 2	P25	Interop
852.300	WQTD797	M	293 NAC	CO SMPX3	Statewide Simplex 3	P25	Interop
852.550	WQTD797	M	293 NAC	CO SMPX4	Statewide Simplex 4	P25	Interop
853.6875	WQTD797	M	293 NAC	CO SMPX5	Statewide Simplex 5	P25	Interop
853.7875	WQNY612	RM	156.7 PL	CO STAC	Statewide Tactical Repeater

 

[redbeard]

scanlist, I'm using Pro-106/Pro-197. I might not hit anything on them, so I will see, I might not hit any of them. Is there any of these freq's that are in Northern Colorado area? Specific bands that I have below.

700 MHz Nationwide Air-Ground​

These channels are reserved for air-ground communications to be used by low-altitude aircraft and ground-based stations. Are they just for EMS or would any law enforcement or fire use them. if I don't use Auto do i just leave it blank?

Frequency	License	Type	Tone	Alpha Tag	Description	Mode	Tag
769.13125	RM	293 NAC	7AG58/58D	Air - Ground 58/58D	P25	Interop
769.63125	RM	293 NAC	7AG60/60D	Air - Ground 60/60D	P25	Interop
770.13125	RM	293 NAC	7AG67/67D	Air - Ground 67/67D	P25	Interop
770.63125	RM	293 NAC	7AG68/68D	Air - Ground 68/68D	P25	Interop
773.11875	RM	293 NAC	7AG78/78D	Air - Ground 78/78D	P25	Interop
773.61875	RM	293 NAC	7AG80/80D	Air - Ground 80/80D	P25	Interop
774.11875	RM	293 NAC	7AG85/85D	Air - Ground 85/85D	P25	Interop
774.61875	RM	293 NAC	7AG88/88D	Air - Ground 88/88D (Landing Zone)	P25	Interop

Everything public safety in 700MHz is P25. So to answer your question, you would set it to digital/p25. You don't want auto as that would open squelch on random FM noise that you don't want. YMMV, I am not a GRE guy.

As others said though you are unlikely to hear anything unless it were some unlicensed activity, which there is always a chance.

 

[Project25_MASTR]

Everything public safety in 700MHz is P25. So to answer your question, you would set it to digital/p25. You don't want auto as that would open squelch on random FM noise that you don't want. YMMV, I am not a GRE guy.

As others said though you are unlikely to hear anything unless it were some unlicensed activity, which there is always a chance.

Actually, there are some low power itinerants defined by the NIFOG that can be analog or digital.

 

[redbeard]

Actually, there are some low power itinerants defined by the NIFOG that can be analog or digital.

I must have missed those. Thanks, I'll have to give it another look.