FCC data base "Frequency" modifier

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wd4edu

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In the FCC database, some numerical frequencies are followed by a space then an upper-case letter "V."

An example is callsign WPTE977, licensed to Georgetown, County of (S.C.), Site 2, Pawleys Isl, 3700 West of City off US 17 on Dump Road:
853.23750000 V
853.35000000 V.

What does the "V" signify, and are there other letter appendages?

Paul
 

mmckenna

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Do you have a link to the page you are looking at?

I looked at the FCC license, and I'm not seeing anything other than the frequency.
 

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I see this in the results of a FCC "Site / Frequency / Market Search Results" "Universal Licensing System Database -- Sites" with the following "Search Criteria":
"Frequency Range = 853 MHz through 861 MHz, Computed Box Based on Point/Radius: Center = 33 47' 48" N 78 43' 36" W, Radius = 25 Miles, Currently Licensed and Pending Facilities"

http://fjallfoss.fcc.gov/General_Me...ortstring=,+lic_name,+file_num&limit_select=4

Sorry, not smart enough to know how to have put the above as a link.

Paul
 

nd5y

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V means vertical polarization. Not all licenses have an entry for antenna polarization. It shows up on the Antenna # field on the Locations tab on the license.
 

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Interesting. I see the "V -- Vertical" in the "Polarization" field for "Antenna 1."

Seems to me that it would be rare to have horizontal polarization for mobile and handheld transceivers.

Paul
 

mmckenna

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Seems to me that it would be rare to have horizontal polarization for mobile and handheld transceivers.

Paul
Yes, it would be rare for mobile/portable use, but not unheard of for Part 90 use for point to point links, telemetry, etc.
 

wd4edu

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Should have expressed my thinking more clearly.

If vertical polarization is far more common than horizontal polarization, I'm surprised that it would be noted. It's "unremarkable."

On the other hand, it would be useful to have the FCC's database notate a numerical frequency with the appendage "H" -- for horizontal polarization -- but I haven't seen any examples of that practice.

Paul
 

nd5y

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Other services besides LMR use horizontal and other polarization types.
There is a list of valid ones at https://wireless2.fcc.gov/helpfiles/licenseSearch/helpMicrowave.html

Polarization—Polarization of the transmitting signal, valid codes are
D—Rotating
E—Elliptical
F—45 Degrees
H—Horizontal
J—Linear
L—Left Hand Circular
R—Right hand circular
S—Horizontal and Vertical
T—Right and Left hand circular
V—Vertical
X—Other
 
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