Icom over the network

1. On the radio: switch on its network server and make a user with a password (on an IC-7610: MENU → SET → Network). Note the radio's IP address.
2. Settings → Rig Control, pick your Icom as Rig Model and tick Network (Icom LAN) beside it. The serial fields make way for the network ones.
3. Host: the radio's address. Port: 50001, the radio's default. CI-V and Audio can stay on auto (port + 1 and + 2) - fill them in only when a router forwards them to other ports, for a second radio or a station on the internet.
4. User and Password, as set on the radio. Show lets you check what you typed.
5. Save it as a preset, and press Connect on the main window.

From there on it is an ordinary rig connection: the frequency follows the radio, a clicked spot tunes it, and WSJT-X can share it through the rigctld server. Closing ShackAssistant signs off from the radio properly, so the next start - or RS-BA1 - finds it free.

The radio allows one network user at a time. While ShackAssistant is connected, RS-BA1 or wfview cannot be, and the other way round.

1. ShackAssistant, Rig Control: Speakers = CABLE Input, Microphone = CABLE Output. Tick the rigctld server.
2. WSJT-X, Audio: Input = CABLE Output, Output = CABLE Input.
3. WSJT-X, Radio: Hamlib NET rigctl, 127.0.0.1:4532, PTT method CAT.

When WSJT-X keys PTT through the rigctld server, ShackAssistant opens the microphone for it. One cable for both directions does not howl: while you transmit, the radio's audio to the cable is muted, and the microphone only opens once what was still playing has drained.

radio  → network → ShackAssistant → CABLE Input  → WSJT-X (receive)
WSJT-X → CABLE Input → ShackAssistant → network → radio (transmit)
# one cable; transmitting mutes the receive side

With an Icom on the network, a Scope block appears at the bottom of the main window: spectrum on top, waterfall below. Click ▾ Scope to fold it away - folded, the radio does not even send it, which saves data.

On the header	What it does
Span	±2.5 kHz to ±500 kHz, centred on the VFO. In fixed mode it says fixed.
Step	What one notch of the mouse wheel tunes: 10 Hz up to 25 kHz, including 6.25 and 12.5 kHz.
RX ▾	RF gain, squelch, ATT and preamp - only the steps your radio really has.
Undock	The scope in a window of its own, with the radio panel below - see next.

• Click in the spectrum or waterfall to tune there. Roll the wheel to tune by the step - fast spins are smoothed, so the radio is never sent an older frequency after a newer one.
• A transverter or QO-100 layer is respected: the scope shows and tunes the real frequency.

Where	What
Header	Scope on/off, CENTER/FIXED, VBW, HOLD and the reference level, beside Span, Step and RX.
Left of the scope	The modes, one button each (LSB, USB, CW, RTTY, AM, FM, DATA ...). Below them the speaker volume and Mute.
Right of the scope	The bands of your radio.
Over the waterfall	An S-meter bottom left, Po and ALC bars bottom right.
Under the scope	The frequency - type one and press Enter - and the other VFO beside it, or in memory mode the channel's name. Bottom left an RX/TX light.
VFO	VFO A/B (or MAIN/SUB), A=B, swap, SPLIT, and memory mode with the channel up/down. An IC-705 has a Bank button for its memory banks.
Filter	FIL1-3, width, SHARP/SOFT, twin PBT and the auto and manual notch.
Antenna / TX	ANT1, ANT2 and RX-ANT (IC-7610), TUNER and output power.
Duplex / Tone	Simplex, DUP-, DUP+, tone and tone squelch with their frequency - for repeaters.
Receive / Transmit	Preamp, ATT, IP+, AGC, NB, NR, the MIC settings (input, gain, levels), AF, RF gain and squelch.
PTT	A big button bottom right. On the air it turns red and flashes.

Every button lights up only when the radio confirmed it - what you see is what the radio is doing, also when you turn a knob on the radio itself.

The window has a minimum size so that everything stays readable, and it remembers where it was. Close ShackAssistant with the scope undocked and it opens undocked next time.