I’ll try the new release and see how that works. Thanks for the comment on decoding.
>> How does Xojo open up a serial port that is already open? An interesting question… No. There is no splitter. One connection through one RS232 port from a mac mini to an FTdx5000. WSJT-X and my Xojo auxiliary app both run simultaneously on the mac. As far as the Xojo part goes, it’s very straightforward. There’s a serial object called theRadio. When called to open, it opens, even if WSJT-X is running. A timer is set, commands are sent to theRadio, replies are received and when the timer expires theRadio.close is called. Once in a while there is a conflict but most of the time it works. If theRadio.open generates an error, the app just waits an tries again. So, for me the question is: Given that the serial port can be “seized” temporarily by another user, when does WSJT-X “care” and when does it not care? 73, Ed W1KOK > On Jun 27, 2019, at 9:24 AM, Black Michael via wsjt-devel > <wsjt-devel@lists.sourceforge.net> wrote: > > I'd think that power supply spike might be better with the 2.1.0rc7 release > and the GFSK that it is doing since there's more of a ramp-up. > > How does Xojo open up a serial port that is already open? Are you using some > splitter? > > I'd think ramping up power that slowly would risk the probability of your > signal being decoded. > > de Mike W9MDB > > > > > On Thursday, June 27, 2019, 08:18:47 AM CDT, Ed Stokes <w1...@comcast.net> > wrote: > > > A few more notes about this subject… > > > > 1. The power spike problem can be “avoided” through keeping the xmtr power > low at the beginning of each cycle and then gradually increasing it. I have > bit of auxiliary code in Xojo which can do this, ramping power up during the > first 5 seconds of the cycle. > > Would anyone care to comment on how this variable power would affect the FT8 > throughput? > > > > 2. I would like to know more about how WSJT-X uses the serial port. > > By experimenting I found that Xojo can “grab” the serial port, interact > briefly with the radio, then drop the serial line and WSJT-X (with rare > exceptions) never notices. > > For example, my auxiliary app can open the same serial port which WSJT-X is > using to control the radio, send some commands to the radio, stay connected > for 100 ms. or so, then close that connection. WSJT-X seems none the wiser > as long as the interruption is brief. > > When does WSJT-X access the serial port and when is it possible for another > app to use it without causing a conflict? > > 73, Ed > W1KOK > >> On Apr 12, 2019, at 2:36 PM, Ed Stokes <w1...@comcast.net >> <mailto:w1...@comcast.net>> wrote: >> >> Hi Bill, >> >> Another extremely helpful comment. >> >> As you may have noted in my previous post, I am not co-located with the >> equipment. >> >> Is it possible to access this menu via the serial interface? >> >> Otherwise, I will have to wait until next month when I am at home again and >> have physical access to the radio. >> >> Thanks. >> >> 73, Ed >> W1KOK >> >> >>> >From W8JI.com <http://w8ji.com/>, maybe 5000 has similar adjustments. If >>> >the IF Transmit Gain >>> was too high the 1000 would exhibit huge power spikes on key down or >>> pressing the mike PTT button. >>> >>> Transmit Gain Menus >>> >>> The FT-1000 MK V has hidden transmit gain menus. They are accessed by >>> pushing and holding FAST and LOCK while turning the POWER switch on. Both >>> of my MK V's and every MK V serviced here has had the TX IF gain set too >>> high. This causes first character clicks on CW and spits and splatter on >>> SSB. Here is how to correct the IF gain to prevent ALC clipping on leading >>> edges of CW and voice: >>> >>> Press and hold FAST and LOCK before and during initial POWER on. >>> >>> Press FAST and ENT at the same time. You are now in the MENU's and the >>> display should say "0-1 GrPI-cH". >>> >>> Turn the VRF/MEM CH counter-clockwise to 9-2. The display should say "t iF >>> - GA in" This is the transmit IF gain menu. >>> >>> Turn the SUB VFO knob clockwise one position to " t iF - 018". This is the >>> 1.8MHz transmit IF gain. >>> >>> Press the ALC/COMP meter selector until the bar graph says "ALC". Set RF >>> PWR knob to full power. >>> >>> With the radio on CW and a 50 ohm dummy load connected, close the key and >>> adjust the MAIN VFO-A knob until the ALC display is about 75-85% of full >>> scale on the illuminated bar marked "ALC". >>> >>> Press the next band button (3.5), make sure the radio is still on CW, and >>> turn the SUB VFO-B knob clockwise one band to "t iF - 035". >>> >>> Again adjust MAIN VFO-A until ALC is at 75-85% of full scale. >>> >>> Repeat this process through all bands. >>> >>> Most radios I have tested require a setting of 2 to 4 on TX IF gain, with 3 >>> being the most common setting. >>> >>> This change will reduce SSB bandwidth and distortion. It will also reduce >>> keyclicks and annoying thumps on the leading edge of each Morse character. >>> >>> Hope this helps; >>> >>> Bill W2PKY >>> >> > > _______________________________________________ > wsjt-devel mailing list > wsjt-devel@lists.sourceforge.net <mailto:wsjt-devel@lists.sourceforge.net> > https://lists.sourceforge.net/lists/listinfo/wsjt-devel > <https://lists.sourceforge.net/lists/listinfo/wsjt-devel> > _______________________________________________ > wsjt-devel mailing list > wsjt-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/wsjt-devel
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