For experienced users

Complete user command reference

User commands are grouped by purpose, with related help topics and aliases. Start with DX spots and filtering, then explore the other sections when useful. Start with the User Manual if you are new to a real-time DX feed.

Check named-filter support on your node. SAVE/LOAD/LIST/DELETE DX FILTER and callsign arguments to SHOW DX FILTER require the maintained ARC6.6 update. Older or legacy nodes may not support them. See examples and availability; ask your sysop whether your node has this update.

Read the command patterns

Type the command words shown in the first column, followed by any arguments described in the second. In command patterns, square brackets mean optional arguments and a vertical bar separates choices; do not type those pattern markers. In a filter list such as CTY=[K,VE], the square brackets are literal syntax: type them to match any listed value. Commands are case-insensitive. Full words are shown to avoid ambiguous abbreviations; slash-separated forms are also recognized. A count normally limits history, not the live stream.

For example, SHOW DX 10 retrieves recent spots, and HELP SET DX FILTER opens that command's built-in help. Do not assume a help item's displayed menu label is itself an accepted command. The actual registered help topics are listed below.

Before changing a filter, copy your existing SHOW DX OPTIONS result. SET DX FILTER replaces the entire expression; an empty expression clears it. Filter recipes explain grouping and restoring settings. FT Modes require a positive FTSKIMMER choice in the way the report matches. CT1BOH filter terms apply only to CW / RTTY RBN skimmer spots. Human spots and FT Modes spots do not receive those quality classifications.

Version and node availability matter. External lookup services, retained reports, feeds, data and routing depend on the node. Check SHOW VERSION on your node.

Choose a command type

DX spots and filtering

Start here for recent reports and the spots you receive live. History queries ask a question once; SET DX FILTER changes your saved selection.

Everyday tasks

Useful DX commands to try first
Task	Example	What happens
Recent spots	`SHOW DX 10`	Show recent matching history; saved filter and node limits apply.
Review your saved filter	`SHOW DX FILTER`	Show options with a copy-ready SET DX FILTER line. Copy, edit and paste the complete command.
20-meter history	`SHOW DX 10 BAND=20`	Narrow this history query to 20 meters without changing live settings.
US / Canadian skimmer and human spots	`SET DX FILTER SKIMMER AND SPOTTERCTY=[K,VE] AND UNIQUE=2 OR NOT SKIMMER AND SPOTTERCTY=[K,VE]`	Request the second distinct CW / RTTY skimmer report from US / Canadian spotters, plus human spots from those countries. This does not opt into FT Modes.
Combine band and mode	`SET DX FILTER BAND=20 AND MODE=CW`	Require both conditions. For ordinary reports, mode can be inferred from frequency.
Two bands, one shared restriction	`SET DX FILTER (BAND=20 OR BAND=40) AND SPOTTERCONT=NA`	20 or 40 meters, reported by a North American spotter.
Match a list of entities or continents	`SET DX FILTER CTY=[K,VE] AND SPOTTERCONT=[NA,EU]`	Match either DX entity, reported from either spotter continent. Type the square brackets. Lists also work with states, grids, bands and zones; see list examples and exclusions.
Return to saved-filter delivery	`SET DX MODE FILTER`	Use the saved filter for live delivery.
Clear the filter	`SET DX FILTER`	Remove the expression. To restore the old selection, send SET DX FILTER followed by your copied expression.

Save and reuse your everyday filters
Command words	Arguments and behavior
`SAVE DX FILTER`	name. Keep separate filters for contests, POTA and DX chasing. Names such as CQWWCW, CQWWSSB, CWT Mini, POTA, Low HF and High HF are your own labels, not built-in presets. Expressions share the normal SET DX FILTER 16,384-character limit. Save the currently active nonempty DX filter, overwriting the same case-insensitive name. Empty filters cannot create or overwrite entries. Up to 50 entries per full logged-in callsign/SSID. Names are 1-25 ASCII letters, digits, spaces, hyphens or underscores; digits alone are reserved for numbers. Example: SAVE DX FILTER CQWWCW.
`LOAD DX FILTER`	name or number. Validate and activate one of your saved DX filters. Use LIST DX FILTERS first to select by number; re-list after collection changes. An invalid or unavailable filter leaves the active filter unchanged. Example: LOAD/DX/FILTER CWT Mini.
`LIST DX FILTERS`	[callsign[-ssid]]. List saved DX filters alphabetically, numbered from 1, with names, copy-ready SET DX FILTER expressions and a count out of 50. LIST DX FILTER and LIST DX FILTERS are equivalent. An optional other callsign/SSID is always read-only and does not replace your own numbered list. Copy an expression to SET your filter, then SAVE it under your own name. LOAD/DELETE always select your own collection. Pause spot traffic with SET DX OUTPUT OFF; resume with SET DX OUTPUT ON.
`DELETE DX FILTER`	name or number. Delete one of your saved DX filters. Use LIST DX FILTERS first to select by number. Deleting a saved entry leaves the active DX filter unchanged.

FT Modes and separate quality choices

SET DX FILTER FTSKIMMER AND BAND=20
SET DX FILTER (SKIMVALID) OR (FTSKIMMER AND BAND=20)

The first recipe requests FT Modes on 20 meters. The second selects CT1BOH-valid CW / RTTY skimmer reports, with an independent 20-meter FT alternative; CT1BOH processing must be enabled. Both are complete replacements. A way that admits FT must positively request FTSKIMMER; an unrelated OR alternative cannot opt it in.

CT1BOH quality filtering is for CW / RTTY RBN skimmer spots only. FT reports skip CT1BOH processing. FTSKIMVALID matches none; NOT SKIMBUSTED does not validate an FT report. SKIMQSY, SKIMUNKNOWN, SKIMCTYCNT and SKIMFREQQSY are not FT quality evidence. See the full FT and quality explanation before combining these terms.

Why SKIMVALID delivers a spot: real examples and the cache decision path →

Inside DXSpider Qualitee: live collections and delivery decisions →
SKIMVALID and Qualitee: side-by-side comparison →

Command details and advanced options

Output formats, extensions, NEEDS/DEBUG modes and spot submission follow the everyday commands below. DX publishes a real observation; DXTEST is private. Do not use fictional reports with DX.

Command words	Arguments and behavior
`SHOW DX`	[count] [query]. Recent history, combined with your saved filter. A standalone - after count bypasses that saved filter for this query; explicit FT opt-in still applies. @ selects live-style formatting and ? selects route formatting. Example: SHOW DX 10 - FTSKIMMER AND BAND=20.
`SET DX FILTER`	[expression]. Replace the whole DX filter; no expression clears it. Save your previous expression first. Comparison lists support =, <>, >, <, >= and <= on applicable fields; <> excludes all listed values. See the guide for fields, FT opt-in, TXOffset and CT1BOH limits.
`SET DX FILTER DEFAULT`	Restore the current Telnet listener’s nonblank validated default filter. If no safe default is available, preserve the current filter and report the failure. A bare SET DX FILTER clears the filter instead.
`SHOW DX FILTER`	[callsign[-ssid]]. Without an argument, display your DX options and a copy-ready SET DX FILTER command. An optional exact callsign/SSID shows its current filter read-only, including offline profiles on this node. Viewing creates or changes no profile or timestamp. To reduce scrolling while managing filters, use SET DX OUTPUT OFF, then SET DX OUTPUT ON when finished.
`SHOW FILTER`	[callsign[-ssid]]. Without an argument, display your DX options and a copy-ready SET DX FILTER command. An optional exact callsign/SSID shows its current filter read-only, including offline profiles on this node. Viewing creates or changes no profile or timestamp. To reduce scrolling while managing filters, use SET DX OUTPUT OFF, then SET DX OUTPUT ON when finished.
`SHOW DX OPTIONS`	Display DX count, filter, mode, output and extension settings. The filter is a copy-ready SET DX FILTER command with equivalent list shorthand, or an unset-filter message. The COUNT, FILTER, EXTENSION, MODE and OUTPUT forms are aliases of this same display.
`SET DX COUNT`	number. Set the default history count, capped by node limits. Example: SET DX COUNT 10. This is not a limit on the live feed.
`SHOW DX OUTPUT`	Display DX count, filter, mode, output and extension settings. The filter is a copy-ready SET DX FILTER command with equivalent list shorthand, or an unset-filter message. The COUNT, FILTER, EXTENSION, MODE and OUTPUT forms are aliases of this same display.
`SHOW DX MODE`	Display DX count, filter, mode, output and extension settings. The filter is a copy-ready SET DX FILTER command with equivalent list shorthand, or an unset-filter message. The COUNT, FILTER, EXTENSION, MODE and OUTPUT forms are aliases of this same display.
`SHOW DX EXTENSION`	Display DX count, filter, mode, output and extension settings. The filter is a copy-ready SET DX FILTER command with equivalent list shorthand, or an unset-filter message. The COUNT, FILTER, EXTENSION, MODE and OUTPUT forms are aliases of this same display.
`SHOW DX COUNT`	Display DX count, filter, mode, output and extension settings. The filter is a copy-ready SET DX FILTER command with equivalent list shorthand, or an unset-filter message. The COUNT, FILTER, EXTENSION, MODE and OUTPUT forms are aliases of this same display.
`SET DX OUTPUT`	ON \| OFF \| AR17 \| XML. ON restores normal DX output; OFF pauses live output. Select a special format only when your client expects it.
`SET DX MODE`	OPEN \| FILTER \| NEEDS \| DEBUG. Choose DX delivery mode. OPEN and DEBUG still respect FT opt-in. NEEDS uses station CW/SSB/RTTY needs; DEBUG can produce substantial diagnostic text.
`DX`	frequency-kHz callsign [comment], or callsign frequency-kHz [comment]. Submit a real observation; it can be distributed to other users and nodes. Do not submit invented test reports.
`SET DX DEFAULT`	Reset the DX filter, count, mode, output and extensions to defaults. Broader than clearing only the filter.
`SET DX EXTENSION`	[LOTW SKIMMERQUALITY CTY STATE LOC SECTION COUNTY GRID CQZONE ITUZONE NAME SPOTTERCTY SPOTTERSTATE SPOTTERLOC SPOTTERCONT EOS]. Replace selected display extensions; no fields clears them. Information depends on available node data.
`DXTEST`	frequency-kHz callsign [comment]. Test a spot privately; the test is echoed only to the requester.

Help topics for this command type

Registered topic	Purpose
`HELP SET DX DEFAULT`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SET DX EXTENSION`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SET DX MODE`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SET DX OUTPUT`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SET DX FILTER`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SET DX COUNT`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SHOW DX OPTIONS`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SHOW FILTER`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SHOW DX`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP DXTEST`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP DX`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SET DX`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP DELETE DX FILTER`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP LIST DX FILTERS`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP LOAD DX FILTER`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SAVE DX FILTER`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SHOW DX FILTER`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.

Back to command categories

Announcements and one-line messaging

Read or control announcements separately from DX. SHOW ANNOUNCE 5 retrieves recent messages. SET ANNOUNCE OUTPUT OFF pauses live announcements; ON restores them. TALK and CHAT send single messages, rather than opening a dedicated session. Broadcast only relevant real information under the node policy.

Command words	Arguments and behavior
`ANNOUNCE`	message. Send a local announcement. Use actual relevant information; recipients depend on their settings.
`ANNOUNCE FULL`	message. Send an announcement with wider network distribution. Follow the node policy before broadcasting.
`SHOW ANNOUNCE`	[count] [expression]. Retrieve announcement history; filters and available retained records affect results.
`SHOW ANNOUNCE OPTIONS`	Display announcement settings. COUNT, FILTER, MODE and OUTPUT are aliases of this display.
`SET ANNOUNCE COUNT`	number. Set the default history count for this stream, capped by node limits; it does not limit live delivery.
`SET ANNOUNCE DEFAULT`	Reset this stream's settings to its defaults; broader than toggling output.
`SET ANNOUNCE FILTER`	[expression]. Replace this stream's filter; no expression clears it. Its fields describe messages, not DX frequencies or FT opt-in.
`SET ANNOUNCE MODE`	OPEN \| FILTER \| DEBUG. Select unfiltered, filtered or diagnostic delivery for this message stream.
`SET ANNOUNCE OUTPUT`	ON \| OFF. Resume or pause this stream's live output, independently of DX output.
`SET ANNOUNCE WRAP`	ON \| OFF. Enable or disable announcement wrapping.
`SHOW ANNOUNCE COUNT`	Display announcement settings. COUNT, FILTER, MODE and OUTPUT are aliases of this display.
`SHOW ANNOUNCE FILTER`	Display announcement settings. COUNT, FILTER, MODE and OUTPUT are aliases of this display.
`SHOW ANNOUNCE MODE`	Display announcement settings. COUNT, FILTER, MODE and OUTPUT are aliases of this display.
`SHOW ANNOUNCE OUTPUT`	Display announcement settings. COUNT, FILTER, MODE and OUTPUT are aliases of this display.
`TALK`	callsign message. Send a one-line user message using known PC9X routes and applicable legacy bridging. No dedicated session or /EXIT command is implied; a route is not authenticated identity.
`SHOW PC9X`	Display known peer negotiation/routing status and bounded queue-pressure diagnostics, including pending work and wait ages. This is not a complete worldwide topology or authentication check.
`CHAT`	group message. Send a one-line group message; delivery depends on routes and recipient subscriptions. SET ANNOUNCE CHATROOMS changes your subscriptions.
`SET ANNOUNCE CHATROOMS`	[group,group]. Replace subscribed chat groups; no groups clears the list. Example: SET ANNOUNCE CHATROOMS SOLAR,MBAND. Does not create a dedicated terminal chat session.

Help topics for this command type

Registered topic	Purpose
`HELP ANNOUNCE`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP ANNOUNCE FULL`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SHOW ANNOUNCE`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SHOW ANNOUNCE OPTIONS`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SET ANNOUNCE COUNT`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SET ANNOUNCE DEFAULT`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SET ANNOUNCE FILTER`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SET ANNOUNCE MODE`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SET ANNOUNCE OUTPUT`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SET ANNOUNCE WRAP`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SET ANNOUNCE CHATROOMS`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.

Back to command categories

Weather announcements

SHOW WX 5 retrieves recent weather messages; SET WX OUTPUT OFF pauses their live output. Weather announcements are not an emergency-warning service.

Command words	Arguments and behavior
`WX`	message. Send a local weather announcement. The cluster is not an emergency-warning service.
`WX FULL`	message. Send a weather announcement with wider network distribution, subject to node policy.
`SET WX COUNT`	number. Set the default history count for this stream, capped by node limits; it does not limit live delivery.
`SET WX FILTER`	[expression]. Replace this stream's filter; no expression clears it. Its fields describe messages, not DX frequencies or FT opt-in.
`SET WX MODE`	OPEN \| FILTER \| DEBUG. Select unfiltered, filtered or diagnostic delivery for this message stream.
`SET WX OUTPUT`	ON \| OFF. Resume or pause this stream's live output, independently of DX output.
`SET WX DEFAULT`	Reset this stream's settings to its defaults; broader than toggling output.
`SHOW WX`	[count] [expression]. Retrieve weather-announcement history; availability depends on incoming reports.
`SHOW WX OPTIONS`	Display WX settings. COUNT, FILTER, MODE and OUTPUT are aliases of this display.
`SHOW WX COUNT`	Display WX settings. COUNT, FILTER, MODE and OUTPUT are aliases of this display.
`SHOW WX FILTER`	Display WX settings. COUNT, FILTER, MODE and OUTPUT are aliases of this display.
`SHOW WX MODE`	Display WX settings. COUNT, FILTER, MODE and OUTPUT are aliases of this display.
`SHOW WX OUTPUT`	Display WX settings. COUNT, FILTER, MODE and OUTPUT are aliases of this display.

Help topics for this command type

Registered topic	Purpose
`HELP WX`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP WX FULL`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SHOW WX`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SHOW WX OPTIONS`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SET WX COUNT`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SET WX DEFAULT`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SET WX FILTER`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SET WX MODE`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SET WX OUTPUT`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.

Back to command categories

Propagation reports: WWV and WCY

Start with SHOW WWV 5 or SHOW WCY 5. Availability depends on reports retained by the node. These indices describe propagation conditions, rather than guaranteeing an open path.

Command words	Arguments and behavior
`SET WWV COUNT`	number. Set the default history count for this stream, capped by node limits; it does not limit live delivery.
`SET WWV OUTPUT`	ON \| OFF. Resume or pause this stream's live output, independently of DX output.
`SET WWV DEFAULT`	Reset this stream's settings to its defaults; broader than toggling output.
`SHOW WWV`	[count] [expression]. Retrieve retained WWV propagation reports; example SHOW WWV 5.
`SHOW WWV OPTIONS`	Display WWV count and output settings. COUNT and OUTPUT are aliases of this display.
`SHOW WWV COUNT`	Display WWV count and output settings. COUNT and OUTPUT are aliases of this display.
`SHOW WWV OUTPUT`	Display WWV count and output settings. COUNT and OUTPUT are aliases of this display.
`SET WCY COUNT`	number. Set the default history count for this stream, capped by node limits; it does not limit live delivery.
`SET WCY OUTPUT`	ON \| OFF. Resume or pause this stream's live output, independently of DX output.
`SET WCY DEFAULT`	Reset this stream's settings to its defaults; broader than toggling output.
`SHOW WCY`	[count \| first-last]. Retrieve retained hourly WCY reports; example SHOW WCY 5 or SHOW WCY 11-20. Node limits apply.
`SHOW WCY OPTIONS`	Display WCY count and output settings. COUNT and OUTPUT are aliases of this display.
`SHOW WCY COUNT`	Display WCY count and output settings. COUNT and OUTPUT are aliases of this display.
`SHOW WCY OUTPUT`	Display WCY count and output settings. COUNT and OUTPUT are aliases of this display.

Help topics for this command type

Registered topic	Purpose
`HELP WWV`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`WWV`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SHOW WWV`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SET WWV COUNT`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SET WWV DEFAULT`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SET WWV OUTPUT`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SHOW WWV OPTIONS`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP WCY`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`WCY`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SHOW WCY`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SET WCY COUNT`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SET WCY DEFAULT`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SET WCY OUTPUT`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SHOW WCY OPTIONS`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.

Back to command categories

Your station profile, needs and macros

SHOW STATION reviews your profile. SET STATION NAME Alex stores a name; replace Alex with yours. SET STATION MACRO 1 SHOW DX 10 stores a shortcut, and SET STATION MACRO 1 clears it. Check an unused slot first. Share only profile information you are comfortable making available.

Command words	Arguments and behavior
`SET STATION EMAIL`	address. Set your email address; example SET STATION EMAIL [email protected].
`SET STATION GRID`	six-character-locator. Set your station locator; example SET STATION GRID EM10AC.
`SET STATION HERE`	ON \| OFF. Mark yourself present or away; it does not disconnect or mute the feed.
`SET STATION LATLON`	latitude longitude, or degrees minutes N/S degrees minutes E/W. Example: SET STATION LATLON 40.0 -105.0. Decimal north/east are positive, south/west negative.
`SET STATION MACRO`	digit [command]. Store a command in slot 0–9; enter that digit to run it. Example: SET STATION MACRO 1 SHOW DX 10. Omit the command to clear the slot.
`SET STATION NAME`	name. Set your displayed name; spaces are allowed.
`SET STATION NEEDS`	CW\|SSB\|RTTY country,country. Replace that mode's needs list. Prefix the mode with + to add or - to remove: SET STATION NEEDS +CW V7,JA. Country prefixes, not station callsigns; no FT worked-grid tracking is implied.
`SET STATION PHONE`	number. Store a phone entry as one token; avoid spaces.
`SET STATION QTH`	location. Set your displayed location; spaces are allowed.
`SHOW STATION`	[callsign]. Display your station profile, or available data for another callsign. The node may supplement missing positions from callbook/country data.

Help topics for this command type

Registered topic	Purpose
`HELP STATION`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`STATION`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SET STATION EMAIL`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SET STATION GRID`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SET STATION HERE`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SET STATION LATLON`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SET STATION MACRO`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SET STATION NAME`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SET STATION NEEDS`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SET STATION PHONE`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SET STATION QTH`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SHOW STATION`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.

Back to command categories

Operating lookups and calculations

SHOW TIME checks UTC; SHOW HEADING V73AQ calculates a direction using available positions. Your latitude/longitude must be set. External lookup services can be unavailable; country-level positions are approximate.

Command words	Arguments and behavior
`SHOW CONTESTSTATION`	callsign. Request contest-station information from the configured external service. Current service availability is not guaranteed.
`SHOW DATE`	Display the node's current UTC date and time. SHOW DATE and SHOW TIME are aliases.
`SHOW HAM`	callsign. Look up US/Canadian callsign information from the node's available callbook data.
`SHOW HAMQTH`	callsign. Request HamQTH data using the sysop-configured service account. The account is separate from local callbook data and your user login; service availability and configuration determine results.
`SHOW PERFORMANCE`	Display node application performance information; a diagnostic report, not a benchmark.
`SHOW HEADING`	callsign. Calculate heading and distance from your saved position using available destination data. A country-level position is approximate.
`SHOW QSLINFO`	callsign. Request QSL information from the configured external service; current service availability is not guaranteed.
`SHOW SUN`	[callsign] or [callsign,MM-DD-YYYY]. Calculate sunrise, sunset and twilight using available position data. No arguments uses your position and today. The implemented date separator is a comma, despite an equals-sign example in legacy help.
`SHOW TIME`	Display the node's current UTC date and time. SHOW DATE and SHOW TIME are aliases.
`SHOW UPTIME`	Display how long this node application has been running.
`SHOW VERSION`	Display the node's software version; check it before applying version-specific advice.

Help topics for this command type

Registered topic	Purpose
`HELP OPERATING`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`OPERATING`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SHOW DATE`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SHOW TIME`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SHOW HAM`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SHOW HAMQTH`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SHOW SUN`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SHOW UPTIME`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SHOW VERSION`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SHOW CONTESTSTATION`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SHOW HEADING`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SHOW QSLINFO`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.

Back to command categories

Node information and connection commands

SHOW USERS shows connected users; SHOW NODES shows the node network view. BYE or QUIT logs off; disable automatic reconnect in your client if you intend to stay disconnected.

Command words	Arguments and behavior
`BYE`	Log off gracefully. BYE, QUIT and EXIT are aliases. Your logger may reconnect automatically until its reconnect setting is disabled.
`QUIT`	Log off gracefully. BYE, QUIT and EXIT are aliases. Your logger may reconnect automatically until its reconnect setting is disabled.
`EXIT`	Log off gracefully. BYE, QUIT and EXIT are aliases. Your logger may reconnect automatically until its reconnect setting is disabled.
`CLEAR`	Send blank lines to move earlier terminal text out of view; client behavior determines the visible result.
`SHOW CLUSTER`	Display the node's cluster summary.
`SHOW DXCLUSTERS`	prefix. Search the node's cached DX-cluster directory by callsign prefix; example SHOW DXCLUSTERS K. A listed address is not proof it is currently reachable.
`SHOW CONNECTS`	Display directly connected users/nodes and connection status. Connection addresses are reserved for the local sysop UI.
`SHOW SKIMMER`	Display CT1BOH receiver statistics. FT reports skip this quality processing; this is not an FT corroboration report.
`SHOW SKIMCTY`	band-meters. Display CT1BOH country/receiver coverage for 160, 80, 40, 30, 20, 17, 15, 12, 10 or 6 meters. Example SHOW SKIMCTY 20. Not computed for FT reports.
`SHOW NODES`	Separate direct peers from remote nodes grouped by known first-hop alternatives with route counts. SH/NODE uses this same command family. Incomplete/bounded views are identified; this is not a worldwide directory.
`SHOW USERS`	[FILTERS]. Display connected users; FILTERS adds their DX-filter information.
`SHOW LOG`	[callsign \| expression \| *]. Show recent connection log records, limited to 25; no argument selects your own callsign. Replies omit connection addresses and refuse address predicates. This is not DX history or full application-file search.

Help topics for this command type

Registered topic	Purpose
`HELP SHOW SKIMMER`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SHOW SKIMCTY`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP NETWORK`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`NETWORK`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP BYE`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP CLEAR`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SHOW CLUSTER`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SHOW DXCLUSTERS`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SHOW NODES`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SHOW USERS`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.
`HELP SHOW LOG`	Display built-in help for this topic (some topics share a family help handler). Category words such as WWV, WCY, STATION, OPERATING and NETWORK alone also open help; they do not publish a report.

Back to command categories

General help

HELP opens the main menu. Topic-specific help appears alongside each command family above; full registered words are listed.

Help topics for this command type

Registered topic	Purpose
`HELP`	Display the main help menu.

Back to command categories

Node policies and reference data

Rapid reconnects, concurrent user sessions and command/spot bursts can encounter independent node protections. Wait for any stated retry interval and inspect your client automation. Optional local spot permission lists or warm-up can restrict posting while leaving read access available; they do not provide account authentication. Observe permits the operation. There is no user registration/enrollment command.

LOTW means a listed participant, without a recent-upload or QSL guarantee. TOP100 uses cached Most Wanted ranks mapped through loaded CTY. FOC and SCP depend on available membership data. SHOW DXCLUSTERS searches a cached directory, not a live availability probe. Ask the sysop about stale/unavailable data; do not generate repeated test spots.

Sysop policy scopes and reference-data meanings explain the node-side controls. User commands cannot edit security settings or export all profiles; those are local sysop actions.

Beyond the command words

Common filter fields cover callsigns, bands, continents, report SNR and reported grids. FT/CT1BOH examples explain why mixing quality terms with FT reports can fail or imply a quality check that did not happen. An informational reply can warn after saving such a mixed alternative; it does not rewrite your filter.

There is no registered ARC6.6 user mail command family in this reference. Similar command names in other cluster products do not establish compatible syntax or behavior.

Command behavior and node policies

SET DX FILTER DEFAULT restores the current Telnet listener’s nonblank validated default; failure preserves the current filter. A bare SET DX FILTER clears it instead. Frequency display uses dot decimals and existing kHz units. Identity/session admission rules are covered in the user guide; they are not user-editable filter commands.

SHOW HAMQTH callsign uses the sysop-configured authenticated service. Security Monitor lookups are sysop desktop actions; they do not replace this user command.