How theGateway Works
Every session starts in theGateway — it’s the only place to select and activate SDRs. Canvas shows real-time signal levels for whatever’s running, and stays open the whole time. Once your SDRs are active, you can toggle audio monitoring between them and check distance and bearing straight from the Map, without going back into theGateway.
Table of Contents
theGateway
Select and activate the SDRs, tune frequency and mode, and access features that don’t exist anywhere else.
1. Synchronize Frequency, Mode, and Zoom
Enter the frequency, mode, and waterfall zoom level, then click Adjust to sync every active SDR at once
2. SDR List Sorting
Sort slots by distance from your target, or by state/province/country.
3. Distance Units
Switch the distance display between miles and kilometers
4. Layout Selection
Choose from multiple layouts with up to 18 SDR slots, supporting KiwiSDR, Web-888, and UberSDR
5. SDR Selection
Choose a receiver for each slot from a database listing hundreds of public SDRs
6. Slot Activation
Launch the SDR assigned to that slot
7. Distance/Bearing
View the mileage and azimuth from target to each active SDR
8. Round Trip Delay
Hover this icon in slot to see SDR round-trip audio delay in milliseconds
9. Interactive Window
Launch the full SDR in its own interactive window
10. Projector Window
View the full SDR in it’s own projector window
11. Toggle Audio Monitoring
Turn an active slot’s audio stream on or off
12. Adjust Audio Level
View live level meter and set volume for a monitored slot
13. Reduce background noise
Apply variable noise reduction to the monitored audio
14. Local Receiver
Dedicated audio slot for your radio with its own monitor toggle and level control
Canvas
What you’ll have on screen for the whole session — real-time signal levels for every active SDR
1. Slots
Numbered Canvas slots match those in theGateway
2. Signal Strength
Active Canvas slots show real-time S-meter readings from that SDR for comparison.
3. Location Labels
Every active slot is labeled with the SDR’s state, province, or country
Map
1. Target Lookup
Type callsign or grid square – system looks it up and computes your target’s coordinates
2. Save Favorites
Save callsigns and recall them later for quick target selection
3. Target Plotting
A star marks location computed from your callsign/grid square entry
4. SDR Distance and Bearing
Active SDR shows path from target with mileage and azimuth.
5. Map Monitoring Toggle
Click any active icon to toggle audio monitoring for that SDR without going back into theGateway