The Facebook group FT4 on Sat is helpful if you’re interested in this mode. In the guides section you’ll find the FT4 frequencies that are in common use on a number of satellites:

RS-44,435612,145993,USB-D,LSB-D,

XW-2A,145667,435048,USB-D,LSB-D,

XW-2B,145732,435108,USB-D,LSB-D

XW-2C,145797,435168,USB-D,LSB-D,

XW-2D,145862,435228,USB-D,LSB-D,

XW-2F,145982,435348,USB-D,LSB-D,

CAS-4A,145862,435228,USB-D,LSB-D,

CAS-4B,145917,435288,USB-D,LSB-D,

JO-97,145857,435118,USB-D,LSB-D,

AO-109,435762,145888,LSB-D,USB-D

TO-108,145917,435288,LSB-D,USB-D

FO-29,145998,435,802,LSB-B,USB-D

LSB -> UPLINK,   USB -> DOWNLINK

Ray KN2K


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On Tuesday, October 11, 2022, 4:03 PM, Mike Swiatkowski <mjswiatk@gmail.com> wrote:

5 kHz is just as good!  Maybe better.  Let's go with that!

Mike, AA9VI

On Tue, Oct 11, 2022 at 3:01 PM Mark Johns, K0JM <k0jm.mark@gmail.com> wrote:
Almost everyone in North America is operating at 5 kHz up from the bottom of the downlink passband. I set my WSJT-x at 435.6115. Once in a while I see somebody CQing beyond the passband, more than 3 kHz up from that frequency, but I don't know if they actually work anybody.
--
Mark D. Johns, KØJM
AMSAT Ambassador & News Service Editor
Brooklyn Park, MN USA   EN35hd

-----------------------------------------------
"Heaven goes by favor; if it went by merit,
   you would stay out and your dog would go in."
    ---Mark Twain


On Tue, Oct 11, 2022 at 2:53 PM Mike Swiatkowski <mjswiatk@gmail.com> wrote:
I read a message from Jerry, N5EKO, that the gentleman's agreement is to operate 3-10 kHz above the bottom band edge.  WSJT-X may show you about 2.5 to 3 kHz of passband on a typical computer screen. So, that 7 kHz seems a bit much to monitor all at once. I think it'd be easier to just pick a standard calling offset from the bottom band edge to monitor when the satellite is passing.  If we all started listening to +3 kHz to +5.5 kHz USB FT4 mode from the band edge it's a simple rule of thumb and we know where to listen to those signals seemingly under the noise floor.  Many users don't have a band scope.  So, a designated offset would be helpful.

Example:  RS-44  Satellite downlink passband is 435.61 - 435.67 MHz
Listen or CQ by setting SATPC32 satellite (not rig since it changes due to doppler) frequency to 435.613  USB mode and choosing FT4 on WSJT-X

so, the satellite (not rig) downlink frequency for 
FO-29 = 435.803
AO-07  = 145.928 
HO-113 = 435.168
and so forth for other satellites.  Maybe the XWs, CAs, JO-97, and EO-88 birds would be good for FT4, too.


Mike, AA9VI
EN52

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