Hi Mike,
On 1/6/2023 5:26 PM, Mike W9IP via Moon-net wrote:
> I know that DT is time offset, .. how is it measured?
>
> I’m asking because several stations tell me that I have DT of about 3.2
> whereas most stations that I decode are about 2.8. My computer clock is
> never more than 10ms off, so that’s not the cause.
DT is measured by establishing the start time of the protocol's
pseudorandom synchronizing sequence, comparing it to the expected start
time, and reporting the difference. Measured and expected times are
determined using tools of the computer's operating system -- presumably
Windows, Linux, or macOS. None of these is a realtime OS with
guaranteed response times and timing accuracies, so in practice there is
always some "slop" in the timing measurements. The way your system's
audio devices are configured can have an effect on audio latencies. So
can delays introduced by programmed sequencing delays in your T/R
switching system.
If you care about a possible extra 0.4 s of delay, you could measure it
by using a 'scope or other tool to determine the delay between (say) a
WWV start-of minute tone and the start of Tx audio being generated by
WSJT-X. Q65 tones nominally start at t=1.0 s into the minute.
-- 73, Joe, K1JT
The WSJT Development Team is pleased to announce the WSJT-X 2.6.0
General Availability (GA) release. Program changes from version 2.5.4,
released one year ago, are described in the Release Notes:
https://wsjt.sourceforge.io/wsjtx-doc/Release_Notes_2.6.0.txt
Be sure to read the full Release Notes entry for today's date, January 6
2023. Program enhancements since program version 2.5.4 and extensive.
We call to your attention, once again, that the WSJT Home Page has moved
to a new URL:
https://wsjt.sourceforge.io/
Direct links for downloading pre-built installation packages for
Windows, Linux, and macOS, can be found on the WSJT-X page:
https://wsjt.sourceforge.io/wsjtx.html
For those who like to compile from source, a complete source-code
tarball is available at the WSJT-X page. Public access to the git
repository for the WSJT project is available on the "Git" tab here:
https://sourceforge.net/projects/wsjt/
WSJT-X is licensed under the terms of Version 3 of the GNU General
Public License (GPL). Development of this software is a cooperative
project to which many amateur radio operators have contributed. If you
use our code, please have the courtesy to let us know about it. If you
find bugs or make improvements to the code, please report them to us in
a timely fashion.
The authors and Copyright holders of WSJT-X request that derivative
works should not publish programs based on features in WSJT-X before
those features are made available in a General Availability (GA) release
of WSJT-X. We will cease making public Release Candidate (RC)
pre-releases for testing and user early access purposes if this request
is ignored.
Bugs should be reported by following instructions found here in the User
Guide:
https://www.physics.princeton.edu//pulsar/K1JT/wsjtx-doc/wsjtx-main-2.5.4.h…
We hope you will enjoy using WSJT-X 2.6.0.
-- 73 from Joe, K1JT; Steve, K9AN; Nico, IV3NWV; Uwe, DG3YCB;
Brian, N9ADG; and John, G4KLA
I cant understand as from i download the 2.6 even now the GA
Still the program is not matching the freq when i turn the dial of the
9700.and the 7300.Also dark mode set went white again.
73 David 9h1tx
Hello all,does anyone know is it possible to modify BUC (Block Up Converter) from Sea Tel MarineStabilized Antenna systems (model 4003A) to 10.368 GHz? This unit has local frequency 13.05 GHz, IF - 950..... MHz and output 14.00 to 14.5 GHz. Output power 8 W.If such a modification is impossible or difficult to implement, then is it possible to use only the PA of this BUC together with the transverter (for example, MKU 10G 5 (200 mwt output)?I mean the bandwidth of the amplifier, since the difference between 14 and 10 GHz is quite large.Any ideas are welcome. Please answer to: genek (at) hot.ee73! Gennadi, ES3RF
Hello all,does anyone know is it possible to modify BUC (Block Up Converter) from Sea Tel MarineStabilized Antenna systems (model 4003A) to 10.368 GHz? This unit has local frequency 13.05 GHz, IF - 950..... MHz and output 14.00 to 14.5 GHz. Output power 8 W.If such a modification is impossible or difficult to implement, then is it possible to use only the PA of this BUC together with the transverter (for example, MKU 10G 5 (200 mwt output)?I mean the bandwidth of the amplifier, since the difference between 14 and 10 GHz is quite large.Any ideas are welcome. Please to private mail: genek(at)hot.ee73! Gennadi, ES3RF
I’ve recently added a FunCube Pro+ SDR to my 23cm setup to use MAP65. It works great for signals down to around -20
However I have a strong birdie at 1296.057.3 Mhz (see image of the wide graph)
It appears to be internal to the SDR device as it’s present even when the SDR is terminated straight into a dummy load. Of course it could also be something from the PC itself interfering. The bridie also doesn’t change when the LNA is turned on and off. There are a couple more minor ones at 1296.053.7 and 1296.084.9
I’m curious if others who have the same setup see the same issue, and if there is any known cause & fix?
James - VK3VJP
Hi folks
Last night after many cq calls US5EII Alex called me & we completed with no
problem. Alex sees me most of the time but I do not see him.
Alex runs 1X16 & 200 watts. So we were both very pleased. I am a new DXCC
country for him & I would like to send him a QSL but his address in UKRAINE
is withheld probably because of the war. Is there anyone in UKRAINE that
can help me??
I look forward to see Alex again on 144.
73,
Serge VE1KG
Hi All,
A New Special Event Station W2P ( not to be confused with W2T) will be
active starting 21:30 today on 2M EME running 4x18 and 1KW to celebrate the
Battle of Princeton, which took place Jan. 1777. Special QSL cards will be
issued. Watch the Logger for Frequency.
