[SCCC] FT4 Conversation with FT8
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wn6k at sbcglobal.net
Wed May 1 17:03:15 EDT 2019
FT4: “So how’d you like your 2 year run?”
FT8: “ It wasn’t HALF Bad!”
"If everyone is thinking alike, then somebody isn't thinking."
George S. Patton
> On May 1, 2019, at 09:00, sccc-request at contesting.com wrote:
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> Today's Topics:
>
> 1. FT4 on 14.080 (Dr. Howard S. White)
> 2. Re: FT4 on 14.080 (Dave Hachadorian)
> 3. Re: FT4 on 14.080 (Steve)
> 4. Re: FT4 on 14.080 (Dave Hachadorian)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 30 Apr 2019 20:07:53 +0000
> From: "Dr. Howard S. White" <drpaper at kleega.com>
> To: "sddxcnews at yahoogroups.com" <sddxcnews at yahoogroups.com>, "SCCC
> Reflector (sccc at contesting.com)" <sccc at contesting.com>
> Subject: [SCCC] FT4 on 14.080
> Message-ID: <b5129bc7d5a34a71a2df29deeb00da0e at kleega.com>
> Content-Type: text/plain; charset="us-ascii"
>
> The new super fast contest/dx digital mode FT4 is booming on 14.080 since yesterday
>
> Its 2.5x faster than FT8 Sequences only take 6 seconds
>
> I have already worked about 20 countries and lots of locals
>
> Details are found here
> http://physics.princeton.edu/pulsar/k1jt/FT4_Protocol.pdf
>
> Software is found here WSJT-X 2.1.0:
> You can download wsjtx-2.1.0-rc5-win64.exe (or for other O/S) from near the bottom of the page at
> http://physics.princeton.edu/pulsar/k1jt/wsjtx.html
>
> __________________________________________________________
> Howard S. White Ph.D. P. Eng., VE3GFW/K6 ex-AE6SM KY6LA
> Website: www.ky6la.com<http://www.ky6la.com/>
> "No Good Deed Goes Unpunished"
> "Ham Antennas Save Lives - Katrina, 2003 & 2007 San Diego Fires, 911"
>
>
>
> ------------------------------
>
> Message: 2
> Date: Tue, 30 Apr 2019 13:24:59 -0700
> From: "Dave Hachadorian" <k6ll.dave at gmail.com>
> To: "reflector SCCC" <sccc at contesting.com>
> Subject: Re: [SCCC] FT4 on 14.080
> Message-ID: <978A0703D6974F2691CDF8B36C473343 at Nitro>
> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
> reply-type=original
>
> Here is some more info. Note the frequencies, use of non-contest mode,
> expiration date, and the 64-bit version's sound card issue.
>
> Dave Hachadorian, K6LL
> Yuma, AZ
>
> By now most of you know about the FT4 protocol under development for
> eventual release in WSJT-X 2.1.0. The new mode is particularly
> optimized for use in radio contesting.
>
> FT4 is mostly like FT8, but is 2.5 x faster, uses 1.8 x the bandwidth,
> and is 4.6 dB less sensitive. Many other details are summarized in "The
> FT4 Protocol for Digital Contesting", available here:
> http://physics.princeton.edu/pulsar/k1jt/FT4_Protocol.pdf
> Links to translations in other languages are available on the WSJT-X web
> page:
> http://physics.princeton.edu/pulsar/k1jt/wsjtx.html
>
> Release candidate WSJT-X 2.1.0-rc5 is intended for beta-testing through
> June 7, 2019. Please note that the FT4 mode should NOT be used in the
> ARRL June VHF QSO Party (June 8-10) or ARRL Field Day (June 22-23).
>
> We have done our best to provide suggested operating frequencies for the
> test period consistent as far as possible with world-wide band plans and
> existing usage. Please note that thanks to good user feedback, some of
> these frequencies are different from those suggested in the document
> linked above.
>
> Default frequencies currently recommended for FT4 are as follows:
>
> Band MHz Notes
> -------------------------------------
> 80 3.575 (3.568 MHz in Region 3)
> 40 7.047
> 30 10.140
> 20 14.080
> 17 18.104
> 15 21.140
> 12 24.919
> 10 28.180
> 6 50.318
> 2 144.170
>
> FT4 is designed for contesting, but it will likely find some use for
> normal QSOs as well, especially during the beta test period. In the
> coming month we hope to receive useful feedback on the user interface,
> message sequencing, interaction with logging programs, etc. Probably
> it's best to use "normal" (non-contest) messages except during the
> mock-contest practice sessions scheduled for 0000 - 0100 UTC on May 9
> and May 14, and (if needed) June 5.
>
> Downloadable installation packages for WSJT-X 2.1.0-rc5 under Windows,
> Linux, and macOS are available on the WSJT-X web page:
>
> http://physics.princeton.edu/pulsar/k1jt/wsjtx.html
>
> Windows users will discover that WSJT-X v2.1.0 has been made available
> as a 64-bit MS Windows build for 64-bit versions of Windows since Vista.
> This veraion has one known defect. The audio input device level will be
> reset to 100% when WSJT-X is started, when the input audio device is
> changed, and when switching to a new configuration. This is a Qt
> framework defect that we have reported and is being fixed in a future
> release; until then users should take care to set the device audio level
> back to 0dB or lower depending on requirements. Note that many sound
> cards and chips have real gain ahead of the ADC, as much as 14dB, which
> will be turned to the maximum due to this defect and is usually
> undesirable when using WSJT-X.
>
> Despite this annoying defect, we recommend the 64-bit version of WSJT-X
> on MS Windows as it has significant advantages in decoding speed.
>
> -- 73 from Joe, K1JT; Steve, K9AN; and Bill, G4WJS
>
> -----Original Message-----
> From: Dr. Howard S. White
> Sent: Tuesday, April 30, 2019 1:07 PM
> To: sddxcnews at yahoogroups.com ; SCCC Reflector(sccc at contesting.com)
> Subject: [SCCC] FT4 on 14.080
>
> The new super fast contest/dx digital mode FT4 is booming on 14.080 since
> yesterday
>
> Its 2.5x faster than FT8 Sequences only take 6 seconds
>
> I have already worked about 20 countries and lots of locals
>
> Details are found here
> http://physics.princeton.edu/pulsar/k1jt/FT4_Protocol.pdf
>
> Software is found here WSJT-X 2.1.0:
> You can download wsjtx-2.1.0-rc5-win64.exe (or for other O/S) from near the
> bottom of the page at
> http://physics.princeton.edu/pulsar/k1jt/wsjtx.html
>
> __________________________________________________________
> Howard S. White Ph.D. P. Eng., VE3GFW/K6 ex-AE6SM KY6LA
> Website: www.ky6la.com<http://www.ky6la.com/>
> "No Good Deed Goes Unpunished"
> "Ham Antennas Save Lives - Katrina, 2003 & 2007 San Diego Fires, 911"
>
> _______________________________________________
> SCCC mailing list
> SCCC at contesting.com
> http://lists.contesting.com/mailman/listinfo/sccc
>
>
>
> ------------------------------
>
> Message: 3
> Date: Tue, 30 Apr 2019 18:26:19 -0700
> From: Steve <k0xp at k0xp.com>
> To: Dave Hachadorian <k6ll.dave at gmail.com>, "reflector SCCC"
> <sccc at contesting.com>
> Subject: Re: [SCCC] FT4 on 14.080
> Message-ID: <0LqjuG-1grExt36yA-00eI0O at mrelay.perfora.net>
> Content-Type: text/plain; charset="us-ascii"; format=flowed
>
> 7047 is just half a kilohertz below W1AW's standard broadcast frequency.
>
> SteveH, K0XP
>
> At 01:24 PM 4/30/2019, Dave Hachadorian wrote:
>> Default frequencies currently recommended for FT4 are as follows:
>>
>> Band MHz Notes
>> -------------------------------------
>> 80 3.575 (3.568 MHz in Region 3)
>> 40 7.047
>
> ...............
>
>
>
> ------------------------------
>
> Message: 4
> Date: Tue, 30 Apr 2019 20:55:56 -0700
> From: "Dave Hachadorian" <k6ll.dave at gmail.com>
> To: "reflector SCCC" <sccc at contesting.com>
> Subject: Re: [SCCC] FT4 on 14.080
> Message-ID: <91956E457B2141F286D0E3C779175D5D at Nitro>
> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
> reply-type=response
>
> The wsjt-x guys are now aware of that, and I think they are going to change
> the 40 Meter frequency. They don't have many frequencies to choose from if
> they want to include world-wide allocations.
>
> Dave Hachadorian, K6LL
> Yuma, AZ
>
>
> -----Original Message-----
> From: Steve
> Sent: Tuesday, April 30, 2019 6:26 PM
> To: Dave Hachadorian ; reflector SCCC
> Subject: Re: [SCCC] FT4 on 14.080
>
> 7047 is just half a kilohertz below W1AW's standard broadcast frequency.
>
> SteveH, K0XP
>
> At 01:24 PM 4/30/2019, Dave Hachadorian wrote:
>> Default frequencies currently recommended for FT4 are as follows:
>>
>> Band MHz Notes
>> -------------------------------------
>> 80 3.575 (3.568 MHz in Region 3)
>> 40 7.047
>
> ...............
>
>
>
> ------------------------------
>
> Subject: Digest Footer
>
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> ------------------------------
>
> End of SCCC Digest, Vol 197, Issue 1
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