Hello Dear HamRadio operators,

I would like to invite all of you to come see and test my new platform. www.dxrank.net

I built it around a permanent and temporary performance based ranking system that gives points to each QSO made based on many factors, that mostly indicate how difficult/unique that QSO was, like how wide the bandwidth, analogic vs digital modes, what distance, how was the band condition and more.
The all time rank, is permanent and always attached to one callsign. The temporary rank is based on a time filter: 30min, 1 day etc. and shows you the best operators of that time frame.

Every rank is awarded a visual rank badge for easy identification and recognition.

And it's just the start.

The Live QSO map is a live world map, interactive based for all live-real time incoming qsos, where you can filter, select and see callsign locations and more.

Currently the live QSO are derived from online logging platforms but not only, see below.

Alongside that there are various graphs that show you the current QSO rate inbound.

After that i created also a user menu, with useful tools for various tasks.

The ADIF Score let's you merge your existing adi record to the platform, so even if you don't log QSO online automatically, you can still update the platform manually similar to QRZ.com, the eligible qso from 12 Oct 2026 onward will be merged to you rank and points.

Additionally i have prepared Pro Tools access, some of which are ready like the ADIF PRO tool, which is based on a previous program of mine, basically is the master ADI analysis tool, where you can pull precise stats and graphs of your radio activity, export to cabrillo, PDF reports and more.

There is a lot more on the platform that i can explain here, i invite you to come over and enjoy it, is absolutely all free and ads and spam free. With exception for the pro tools access in the future.

Come over and let me know your thoughts. 73

Marco

NOT POSSIBLE 😂

Hi, im after some advice, im currently studying for my intimidate license in the UK.

I am looking to upgrade from a g90 to an ftdx 10 and im wondering if this psu will be suitable for up to 100w.

It is listed as 20 amp continuous and 30 amp surge.

Tia 😊

QSSTV-Experimental is an amateur-radio program for sending and receiving SSTV (slow-scan television) and HAMDRM / DSSTV (digital SSTV) pictures using a sound card. It is compatible with most of MMSSTV and EasyPal. Substantial changes have been made versus upstream QSSTV.

All original QSSTV features are still available. See the README.md for details.

Changes versus upstream QSSTV 9.5.11

Platforms

• Windows (64-bit, 10 1809 or later, or 11)
• Linux AppImage (x86_64/arm64 - Ubuntu 24.04, Fedora 39 or similar and later)
• macOS (macOS 15 or later, Intel or Apple Silicon, should work but untested. No hardware.)

New Features

• Sample-rate calibration - from WWV time ticks, NTP, or a reference SSTV station
• Decode SSTV from audio files - (WAV, MP3, FLAC, OGG, AAC), from the GUI (*File > Decode SSTV From File...*) at about 10x real time, or from the command line with `qsstv-experimental --batch`
• New SSTV modes - *JB60*, a ~61 s 640*496 color mode (still in development), and *PD120W*, a 16:9 widescreen PD120
• Stitched grid images - transmit pictures as 1x2, 2x1 or 2x2 grids on the higher resolution SSTV modes and DRM
• Pan/Zoom images for transmission - Place images exactly how you want them in-frame (and in grids) before transmission
• Gallery multi-select - to delete or send several images to TX, with the Del key for quick deletion
• WebP, AVIF and HEIC support
• Image viewer zoom and pan
• Clipboard support - copy (anywhere)/paste into the transmit window or TX stock
• ADIF logbook broadcast over UDP - on every OS
• DRM Live size-slider preview - preview updates as the slider is dragged
• DRM Progressive Image Reception - Image previews as you receive, improving in quality over time
• Follows Desktop Themes

See the GitHub for ALL the changes.

BIG Thank you to WA8LMF, KC8LOQ, and KF8GTK for lots and lots of testing.

Have fun! I did.

Jay NT0Y

https://github.com/jbdubbs/QSSTV-Experimental

At first I was going to use off-the-shelf GaN switches and drivers, but I'm worried that the drivers wouldn't be able to handle switching that quickly and precisely. (To operate in Class E at 6m, the full cycle is on the order of 10 ns, and I was hoping for hitting 2m, 1.25m, and 70cm, which would likely require the devices to switch in tenths of nanoseconds.)

Yet at the same time, the QMX is able to transmit at 6m using regular old MOSFETs and discrete logic, according to the schematic. I figured that a GaN with an integrated driver that doesn't have to fight PCB trace parasitics would be able to switch a whole lot faster, and they're only about $7 a pop even in small runs, but the datasheets I looked at have hundreds of ns of latency and are intended for switching frequencies below the 50 MHz required to hit 6m.

(As for why I'm doing this: [WA1QIX](https://classeradio.com/)'s polar amplifier can't hit frequencies that high, and the QMX+ is 5W max.)

Good morning- been attempting to wire the business end of a Radiodan rbi-1 keying buffer interface to a Texas Star 350HDV. Have allready put a custom entry point for it with RCA jack (female) mounted to the backplate with + and - wiring out the back of the jack. I believe the -should wire direct to the spot where main -black goes to the pad of the unit if not I have a chassis self tap screw to mount it to. I know for the positive+ it's where the keying sniffer transistor is. which is the one closest to the backplate. But online info is sketchy and confusing, as I've read contradicting advice to solder to the emitter. also the base, hell, even one that said the collector. And so do they mean removing the transistor entirely? Therefore solder this +wire to the spots where the transistor would have been, or transistor points having some of the 3 legs up in the air while other leg(a) to the board with the + soldered to the leg? Any legit knowledge lent on this subject would be very helpful and I appreciate it in advance. I did have an elmer I could turn to but, unfortunately he passed away becoming a silent key about a year ago, he'd been a licensed operator since 1959 and made many contributions to the hobby so he always told me if I couldn't find him, this would be the next best place to try. Again I appreciate you all in advance with your time. Respectfully-Adam