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Old 10-10-2018, 12:57 AM
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Default 218.4 MHz in Garnett Ks

I recently found WQDP234 - City of Garnett with an IG Industrial/Business license on 218.4 MHz for pump control.
I vaguely remember some RR and transit use in this 216-218 MHz range, but wonder if anyone can shed some light on this frequency use?

w
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Old 10-10-2018, 3:46 AM
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Originally Posted by wbloss View Post
I recently found WQDP234 - City of Garnett with an IG Industrial/Business license on 218.4 MHz for pump control.
I vaguely remember some RR and transit use in this 216-218 MHz range, but wonder if anyone can shed some light on this frequency use?

w
Likely used for valve or pump controls for water or wastewater.
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Old 10-10-2018, 8:00 AM
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According to the Emission Designation of
20K0F1D RD-LAP 19.2 kbps within a wideband channel (2013 compliant, meets data throughput requirement)

Motorola's Radio Data Link Access Procedure (RD-LAP) is a 1G protocol that was used in ARDIS and DataTAC Networks, and is still used in some MDT's, as well as gas companies, police departments, fire departments, financial companies, etc. ... RD-LAP has faster data rates (9.6kbps/19.2kbps).

Quote:
Originally Posted by wbloss View Post
I recently found WQDP234 - City of Garnett with an IG Industrial/Business license on 218.4 MHz for pump control.
I vaguely remember some RR and transit use in this 216-218 MHz range, but wonder if anyone can shed some light on this frequency use?

w
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Old 10-10-2018, 8:48 AM
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Originally Posted by ecps92 View Post
According to the Emission Designation of
20K0F1D RD-LAP 19.2 kbps within a wideband channel (2013 compliant, meets data throughput requirement)

Motorola's Radio Data Link Access Procedure (RD-LAP) is a 1G protocol that was used in ARDIS and DataTAC Networks, and is still used in some MDT's, as well as gas companies, police departments, fire departments, financial companies, etc. ... RD-LAP has faster data rates (9.6kbps/19.2kbps).
I see, but what is the allocation of this frequency? It's not a VHF business band. It's below the 220-222 business band. It's not a Railroad/mass transit use. What allows this frequency to be IG?
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Old 10-10-2018, 9:05 AM
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Radio Service IG - Industrial/Business Pool, Conventional

Quote:
Originally Posted by wbloss View Post
I see, but what is the allocation of this frequency? It's not a VHF business band. It's below the 220-222 business band. It's not a Railroad/mass transit use. What allows this frequency to be IG?
W
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Old 10-10-2018, 10:12 AM
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Quote:
Originally Posted by wbloss View Post
I see, but what is the allocation of this frequency? It's not a VHF business band. It's below the 220-222 business band. It's not a Railroad/mass transit use. What allows this frequency to be IG?
W
There are various services in the 216-222 MHz band. Some have regular site based licenses and some have auctioned market area licenses.
90.259 covers PLMR stations in the 216-220 band
Part 90 Subpart T covers the 220-222 band
Part 95 subpart F covers the 218-219 MHz band
Part 95 Subpart G covers the 216-217 MHz band
AMTS is in the 217-218 and 219-220 bands

There may be a couple more that I missed.
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Old 10-11-2018, 9:10 AM
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Quote:
Originally Posted by nd5y View Post
There are various services in the 216-222 MHz band. Some have regular site based licenses and some have auctioned market area licenses.
90.259 covers PLMR stations in the 216-220 band
Part 90 Subpart T covers the 220-222 band
Part 95 subpart F covers the 218-219 MHz band
Part 95 Subpart G covers the 216-217 MHz band
AMTS is in the 217-218 and 219-220 bands

There may be a couple more that I missed.
Thank you Tom, THAT's what I was asking and you provided great answers!
w
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