[wsjt-devel] WSPR frequency on 80 meters

[Lloyd Kirk]

I might have missed it somewhere but all my newer wsjtx builds now have
3.5726 as the wspr frequency.
It was and (still being used) 3.5926 I do not know when it was changed.

Lloyd Kirk
WB5HUP

[Richard Lamont]

On 10/07/17 07:06, Lloyd Kirk wrote:
> I might have missed it somewhere but all my newer wsjtx builds now have
> 3.5726 as the wspr frequency.
> It was and (still being used) 3.5926 I do not know when it was changed.

On July 6, 2017 Bill G4WJS posted to this list in the thread "WSJT-X:
Working frequency suggestions" a link to discussion document here:

https://www.dropbox.com/s/5gay9ng7856glz7/working%20frequencies.txt?dl=0

I've extracted what he said about 80m below:
----------------------------------8<----------------------------------
80m
===

{3570000, Modes::JT65, IARURegions::ALL},
{3572000, Modes::JT9, IARURegions::ALL},
{3573000, Modes::FT8, IARURegions::ALL},
{3572600, Modes::WSPR, IARURegions::ALL},

All frequencies moved down 6kHz so as to allow use in Japan and for
communications with Japan. The JA licence band plan does not allow any
operating between 3575000 and 3599000.

Question: is moving the WSPR frequency complicated e.g. what about
dedicated devices like WSPRLite.
----------------------------------8<----------------------------------


73,
Richard G4DYA

[Bill Somerville]

On 10/07/2017 07:06, Lloyd Kirk wrote:
> I might have missed it somewhere but all my newer wsjtx builds now
> have 3.5726 as the wspr frequency.
> It was and (still being used) 3.5926 I do not know when it was changed.
>
> Lloyd Kirk
> WB5HUP

Hi Lloyd,

you did indeed miss the messages. When we switch the protocol around for
FT8 and also included the new working frequencies facilities Joe made an
announcement here and on the Yahoo wsjtgroup:

https://sourceforge.net/p/wsjt/mailman/message/35933865/

The salient text about 80m was:

Previous 80 m use of JT modes has done a disservice to JA operators, who
have no privileges on the current WSPR/JT65/JT9 allocations. To correct
this we have moved the allocations to a part of the band where JAs can
operate. Obviously this change will impact other non-WSJT-X users, so
for now we suggest that if you intend to operate on 80 m JT65/JT9/WSPR
then you manually change the working frequencies in WSJT-X
("Settings->Frequencies") back to the old allocations until a general
availability release of WSJT-X v1.8.0 is published. This will allow time
for other software teams to coordinate with us.



The old allocations are:



JT65 3.567 MHz

JT9 3.578 MHz

WSPR 3.5926 MHz

73
Bill
G4WJS.

[Tsutsumi Takehiko]

Hi Lloyd,

80m default frequency change including WSPR is addressed in the following memo from Joe on July 08 on this reflector.

-------------------------------------------------------------------------------------------------------------

Previous 80 m use of JT modes has done a disservice to JA operators, who
have no privileges on the current WSPR/JT65/JT9 allocations. To correct
this we have moved the allocations to a part of the band where JAs can
operate. Obviously this change will impact other non-WSJT-X users, so
for now we suggest that if you intend to operate on 80 m JT65/JT9/WSPR
then you manually change the working frequencies in WSJT-X
("Settings->Frequencies") back to the old allocations until a general
availability release of WSJT-X v1.8.0 is published. This will allow time
for other software teams to coordinate with us.

The old allocations are:

JT65 3.567 MHz (typo and should be 4.576 MHz)
JT9 3.578 MHz
WSPR 3.5926 MHz

As he described, the motivation behind is that old allocations have prohibited all JA stations to access 80m WSJT-X communication based on the fact that old spectrum is exclusively occupied by Japanese government usage.

I know the transition is painful for the rest of the world but I sincerely hope you will accept this change for us.

If you have any further questions or advice, please let’s me know.

Regards,

take

de JA5AEA

Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10

From: Lloyd Kirk<mailto:***@gcis.biz>
Sent: Monday, July 10, 2017 3:07 PM
To: wsjt-***@lists.sourceforge.net<mailto:wsjt-***@lists.sourceforge.net>
Subject: [wsjt-devel] WSPR frequency on 80 meters

I might have missed it somewhere but all my newer wsjtx builds now have
3.5726 as the wspr frequency.
It was and (still being used) 3.5926 I do not know when it was changed.

Lloyd Kirk
WB5HUP