X6100 Link

The radio in your hand

Frequency, band, mode, tuning step and a VFO knob (bigger on tablets): tap the step for the next one, hold it for the list.
Live spectrum and waterfall with frequency scale, IARU band plan, VFO line and filter passband: tap or drag to tune, pinch to zoom.
S-meter, preamp, attenuator, NB, NR, AGC, squelch, filter width, RF gain and TX power.
RX audio on the phone, with its own volume.
The DX cluster as on the radio: calls over the waterfall and a column of spots around the VFO; tap a spot to tune it.

The radio decodes and transmits, the phone is the screen and the keyboard. All eight apps of the radio open from the phone:

FT8 / FT4: decodes, CQ, reply, auto sequence, hold, TX frequency (tap the waterfall to set it).
JS8, WSPR and NavTex (receive).
SSTV: send pictures from the gallery or straight from the camera, with call and text.
WeFax: received faxes full screen, zoom, save and share; send a picture.
RTTY and CW: text to send, macros with {CALL}, the characters already on the air in cyan.

While an app is open the VFO is locked (padlock to unlock); BASE brings you back to the app's frequency and mode.

Log voice and CW QSOs in a few taps: call, RST sent and received, LOG.
FT8, FT4, JS8, Field Ops and the phone all write one ADIF log of the day on the radio, ready to download from the web page.
QRZ.com lookup as you type the call: name, QTH, locator, country and flag, zones, distance and bearing, photo; it all goes into the log.
Filter by voice, CW or digital; edit or delete a QSO, add the other station's SOTA or POTA reference.

When the radio enters Field Ops, the app switches by itself to its SOTA/POTA page:

the reference you are on and the ones nearby, to choose with a tap;
Start and End of the activation, QSO entry with the phone's keyboard, the QSO list, Spot;
the phone's GPS gives the radio its position, so it finds the summit or park even without a GPS on the radio.

Four themes: Classic, Pro, Outdoor and Outdoor-Negative for full sunlight.
Phones and tablets, portrait (radio on top, app below) and landscape (side by side); rotating keeps the connection.
Spectrum and waterfall can be hidden one by one; labels in English or Italian.
No account, no cloud: the app talks only to your radio, and to QRZ.com if you enter your login.

Pick one in SET → Theme: from the dark Pro to Outdoor, made to read in full sun.