>From the Cabrillo 4.0 Specification:
LOCATION:
Used to indicate the location where the station was operating from.
ARRL/RAC Sections For USA and Canada stations LOCATION must be the
ARRL section abbreviation. For foreign stations LOCATION must be ?DX?. This
information is required for IARU-HF and for all ARRL and CQ contests.
IOTA Island Name This information is required for RSGB-IOTA contest
and includes Island Name (not IOTA reference number).
RDA Number This information is required for RDXC contest.
73,
Ed W0YK
> -----Original Message-----
> From: CQ-Contest <cq-contest-bounces+ed=w0yk.com@contesting.com> On
> Behalf Of John Geiger via CQ-Contest
> Sent: Wednesday, 4 February, 2026 07:07
> To: dimitri cosson <dimitri.cosson@gmail.com>; CQ-Contest Reflector <cq-
> contest@contesting.com>
> Subject: Re: [CQ-Contest] [RTTY] 2026 WPX RTTY Rules
>
> In the cabrillo header, US stations have to enter their state in the
location
> line.
>
> 73 John AF5CC
>
>
>
>
> Sent with Proton Mail secure email.
>
> On Wednesday, February 4th, 2026 at 12:28 PM, dimitri cosson
> <dimitri.cosson@gmail.com> wrote:
>
> >
> >
> > Hi Ed,
> >
> > Unless I've missed something because of the language difference :
> > If it isn't an obligation to added a valid prefix for the location
> > into United States or US possessions, (KL7YK/AD5 Vs KL7YK, from
> > Texas), when the results are in, how will you know if this station has
> > broken the W5 or KL7 record (if it does)?
> >
> > 73, Dimitri F4DSK
> >
> > Le mer. 4 févr. 2026, 03:06, Ed Muns, W0YK via groups.io <ed=
> > w0yk.com@groups.io> a écrit :
> >
> > > Mea Culpa. We didn't foresee the unintended consequences of
> > > attempting to clarify US possession prefix confusion.
> > >
> > > Thanks, John, for bringing it to our attention. FCC Part 97 does not
> > > require licensees to sign portable anywhere in the United States or
> > > US possessions. However, authorized prefixes of US call areas and
> > > possessions are optionally permitted as portable location
> > > designators and may be encountered on the air. (§97.3 Definitions.
> > > (a) (25) Indicators and
> > > §97.119 Station identification. (c), (e), (f), and (g))
> > >
> > > Accordingly, this simplifies the Prefix Multiplier section of the
> > > WPX
> > > rules:
> > > https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcqw
> > >
> pxrtty.com%2Frules.htm&data=05%7C02%7C%7Cdd677aa0da32417dd88108
> de642
> > >
> a62d9%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C639058330364
> 25537
> > >
> 2%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAu
> MDAwMC
> > >
> IsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&s
> dat
> > >
> a=iuFMELllBUwvcgUZCt3nu0jU5KGTPDsMXQqa%2BvKzzuY%3D&reserved=0
> > >
> > > 73,
> > > Ed W0YK
> > >
> > > > -----Original Message-----
> > > > From: CQ-Contest cq-contest-bounces+ed=w0yk.com@contesting.com
> On
> > > > Behalf Of john@kk9a.com
> > > > Sent: Monday, 2 February, 2026 21:03
> > > > To: cq-contest@contesting.com
> > > > Subject: Re: [CQ-Contest] 2026 WPX RTTY Rules
> > > >
> > > > I guess I did understand your initial post correctly. WPX is now
> > > > using the license address rather than the callsign for the DXCC
> > > > country. Is that the same rule in all three WPX contest modes? So
> > > > if I operate from the US Virgin Islands using the callsign WP2AA,
> > > > it will now count as a US contact since WP2AA has my North
> > > > Carolina address - correct? WP2Z, NH7A and many other stations
> > > > have FCC US addresses but they are active in the DXCC countries
> > > > that match the callsign.
> > > >
> > > > John KK9A
> > > >
> > > > From: Ed Muns ed@w0yk.com
> > > > Sent: Monday, February 2, 2026 12:35 PM
> > > > To: john@kk9a.com; cq-contest@contesting.com
> > > > Subject: Re: [CQ-Contest] 2026 WPX RTTY Rules
> > > >
> > > > Prior year rules are linked from the Rules webpage for comparison.
> > > >
> > > > Previously, the base call sign prefix determined whether a
> > > > portable indicator was required to reflect the DXCC entity of
> > > > operation.
> > > >
> > > > In most cases, the base call sign prefix does match the license
entity.
> > > > One
> > > > exception is AH2O licensed in New York state, USA. Thus, AH2O is
> > > > not required to use a portable designator, whereas prior rules did.
> > > >
> > > > Ed W0YK
> > > >
> > > > -------- Original message --------
> > > >
> > > > From: john@kk9a.com mailto:john@kk9a.com
> > > >
> > > > Date: 2/2/26 04:36 (GMT-08:00)
> > > >
> > > > To: cq-contest@contesting.com mailto:cq-contest@contesting.com
> > > >
> > > > Subject: Re: [CQ-Contest] 2026 WPX RTTY Rules
> > > >
> > > > What does "DXCC entity is now determined by the license rather
> > > > than the callsign" mean? The prefix definition appears to be what
> > > > it has always have
> > > > been:
> > > >
> > > > 1. A PREFIX is the letter/numeral combination which forms the
> > > > first part of the amateur call. Examples: N8, W8, WD8, HG1, HG19,
> > > > KC2, OE2, OE25, LY1000, etc. Any difference in the numbering,
> > > > lettering, or order of same shall count as a separate prefix. A
> > > > station operating from a DXCC entity different from that shown on
> > > > its license is required to sign portable. The portable prefix must
> > > > be an authorized prefix of the country/call area of operation.
> > > > In cases of portable operation, the portable designator will then
> > > > become the prefix. Example: N8BJQ, licensed in the U.S., operating
> > > > from Wake Island would sign N8BJQ/KH9 or N8BJQ/NH9. KH6XXX,
> > > > licensed in Hawaii, operating from Ohio must use an authorized
> > > > prefix for the U.S. 8th district (/W8, /AD8, etc.). Portable
> > > > designators without numbers will be assigned a zero
> > > > (0) after the second letter of the portable designator to form the
> > > > prefix.
> > > > Example: PA/N8BJQ would become PA0. All calls without numbers will
> > > > be assigned a zero (0) after the first two letters to form the
prefix.
> > > > Example:
> > > > XEFTJW would count as XE0. Maritime mobile, mobile, /A, /E, /J,
> > > > /P, or other license class identifiers do not count as prefixes.
> > > >
> > > > John KK9A
> > > >
> > > > W0YK wrote:
> > > >
> > > > The WPX season kicks off in two weeks with the RTTY mode. Please
> review
> > > > the
> > > > 2026 WPX RTTY Rules
> > > >
> <https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcqwp
> %2F&data=05%7C02%7C%7Cdd677aa0da32417dd88108de642a62d9%7C84df
> 9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C639058330364293867%7CUn
> known%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAw
> MCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C
> &sdata=sOWemvbQgJ4buY4LobNrAf9Wyzk793WrLEgFO4s4Or0%3D&reserve
> d=0
> > > >
> xrtty.com%2Frules.htm&data=05%7C02%7C%7C786ff4a656154b9d076f08de6
> > > >
> 32041ff%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C63905718735
> > > >
> 9808243%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiO
> > > >
> iIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C
> > > >
> 0%7C%7C%7C&sdata=m6VNuYafW6vUeUVwnVng8pa6iRjeyKDHtURoNmXIrhs
> > > > %3D&reserved=0> and pay particular attention to the following
> changes:
> > > >
> > > > 1. DXCC entity is now determined by the license rather than the call
> > > > sign. (V.
> > > > SCORING/C. Prefix Multipliers/1.) <snip>
> > > >
> > > > 1. A PREFIX is the letter/numeral combination which forms the first
part
> > > > of
> > > > the amateur call. Examples: N8, W8, WD8, HG1, HG19, KC2, OE2, OE25,
> > > > LY1000, etc. Any difference in the numbering, lettering, or order of
> > > > same shall
> > > > count as a separate prefix. A station operating from a DXCC entity
> > > > different
> > > > from that shown on its license is required to sign portable. The
portable
> > > > prefix must be an authorized prefix of the country/call area of
> > > > operation.
> > > > In cases of portable operation, the portable designator will then
> become
> > > > the
> > > > prefix. Example: N8BJQ, licensed in the U.S., operating from Wake
> Island
> > > > would sign N8BJQ/KH9 or N8BJQ/NH9. KH6XXX, licensed in Hawaii,
> operating
> > > > from Ohio must use an authorized prefix for the U.S. 8th district
(/W8,
> > > > /AD8,
> > > > etc.). Portable designators without numbers will be assigned a zero
> > > > (0) after the second letter of the portable designator to form the
> > > > prefix.
> > > > Example: PA/N8BJQ would become PA0. All calls without numbers will
> be
> > > > assigned a zero (0) after the first two letters to form the prefix.
> > > > Example:
> > > > XEFTJW would count as XE0. Maritime mobile, mobile, /A, /E, /J, /P,
or
> > > > other
> > > > license class identifiers do not count as prefixes.
> > > >
> > > > _______________________________________________
> > > > CQ-Contest mailing list
> > > > CQ-Contest@contesting.com mailto:CQ-Contest@contesting.com
> > >
> > >
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> f9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C639057187359852111%7CUn
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> MCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C
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> > > >
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> > > -=-=-=-=-=-=-=-=-=-=-=-
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