WSJT-X version 2.0 coming

Amateur Radio Weekly points out that there will be some significant changes to FT8 and MSK144 when v2.0 is released, probably around the end of the year. Beta testing has still to be done. This news first appeared on the ARRL site.

UPDATE 1302z July 31st: Title changed. I had it wrong!

See http://www.arrl.org/news/view/significant-changes-in-store-for-ft8-and-msk144-with-wsjt-x-version-2-0?utm_source=amateur-radio-weekly&utm_medium=email&utm_campaign=newsletter

Bob G3WKW has pointed me to the original source http://physics.princeton.edu/pulsar/k1jt/wsjt-x_v2.0.txt

630m (472kHz) WSPR RX

If I can successfully download the latest version of WSPR-X (V1.9) I may give 472kHz WSPR a go this evening and overnight.

UPDATE 1422z: Well, it looks like WSJT-X V1.9 rc2 has successfully downloaded and installed. Currently, I am on 472kHz WSPR RX, but no spots yet.

UPDATE 2115z: 10 unique stations spotted so far this evening including 9A3KB (1290km) which is a new country for me on this band. Best DX so far is LA2XPA (1310km). The shack PC is on battery power.

UPDATE 2155z: The shack PC battery is charging until about 2300z. Thereafter, I shall be on 472kHz WSPR RX through the night with the shack PC on battery power. The PC usually stays working until about 0600z.

UPDATE 2310z: Everything is now set up for an overnight look on 472kHz WSPR. Yet again, I am hoping for some USA spots. Well, I can hope. After about 10 minutes, 5 uniques spotted.

New version of WSPR-X released (V1.9)

According to the Princeton site, a new improved version of WSPR-X has been made available. Better LF and MF WSPR decodes are supposed to be possible.

See https://physics.princeton.edu/pulsar/k1jt/wsjtx.html .

When I looked this was this was a release candidate, so there might still be some bugs?

WSPR-X woes again

With exactly the correct settings, my WSPR-X running on a Win 7 machine refused to upload spots to the WSPRnet.org database today. When I realised it was not working I did 2 things: (a) I closed the program and restarted it, and (b) reset the PC clock to internet time.

Since doing these things, my "lost" spots successfully uploaded to the database. I have no idea why WSPR-X seems to be so temperamental.Otherwise I like it, especially the realtime,scrolling waterfall and support for WSPR-15, although I have only tried this slower mode once, on LF. Stability needs to be pretty good (over a 15 minute period) for WSPR15.

WSPR-X v0.3 r3058

Today I downloaded the latest WSPR software onto the new Win 8.1 PC. At first I could not understand why it refused to TX. Doh! Then I remembered to input VOX, the callsign, grid and audio interface details! All now seems to be working but no Es spots  yet.

WSPR-X running WSPR2 on Win 8.1 PC

An advantage of the later software is the waterfall is in real time (it moves DURING the 2 minute time slot so activity is instantly visible rather than having to wait 2 minutes to see. It also supports the slower, but even more sensitive, 15 minute version WSPR-15 as long as the TX stability is good enough. I tried this on LF before but my LO drift was too poor (old PC and old QTH).

Bottom FT817ND on 10m WSPR-2

I shall stick with this latest version today to see how it performs. I expect the RX sensitivity is unchanged unless it uses improved algorithms for decoding.

WSPR-X and WSPR-15

A note from Joe Taylor K1JT informing us about a new version of WSPR.

WSPR-X and WSPR-15

Wed Jan 16, 2013 8:23 pm

Some of you may be interested in trying WSPR-X, a new version of WSPR that includes the slow mode WSPR-15. WSPR-15 uses 15-minute T/R sequences, rather than the standard 2-minute sequences; at MF and LF it is 9 dB more sensitive than WSPR-2, decoding signals as weak as -37 dB in the standard 2500 Hz reference bandwidth. WSPR-15 is not recommended for use at HF: the tone spacing is only 0.183 Hz, less than the Doppler spreading typical of many HF paths. The main intended application for WSPR-15 is for very difficult paths at 137 kHz and the new 472 kHz band. It may be interesting to try on 160 meters, as well. Note that the recommended WSPR-15 sub-band is a 25 Hz slice just above the 200-Hz WSPR-2 sub-band, i.e., 1600-1625 Hz above the standard "dial Frequency". This will be handled automatically if you set up WSPR-X in the normal way.

A brief online User's Guide for WSPR-X is posted at
http://www.physics.princeton.edu/pulsar/K1JT/WSPR-X_Users_Guide.pdf ,

and the Windows installation file is posted at
http://physics.princeton.edu/pulsar/K1JT/WSPRX_07r2948.exe .

At present, WSPR-X does not support I/Q audio (for use with direct conversion receivers and transceivers) and does not do “band hopping”. Otherwise most familiar WSPR features are present and working well.

For software enthusiasts: Unlike older versions of WSPR, the user interface of WSPR-X is written in C++ and the Qt programming framework. My expectation is that this shift will make for easier development and program maintenance in the future. At present a click-to-install package is available only for Windows. Source code for WSPR-X is available from the open-source SVN repository at berlios.de. Anonymous checkout of the full WSPR-X source code can be accomplished with the command svn co svn://svn.berlios.de/wsjt/branches/wsprx

User comments, suggestions, and bug reports will be very welcome!

-- 73, Joe, K1JT