I mainly work the weak signal digital modes like PSK31, WSPR, WSJT
U. S. Naval
Observatory Master Clock
Larry Helwig, AC7SM (Formerly KD7JJI)
Email: helwig@ieee.org
usually with <5W QRP power. Rig is a Yaesu FT-897, ATAS-100 Antenna
Propagation Map
WSPR Net
Weak Signal Software
Stations Hearing Me
Stations Heard
Distance Records
Grid Square Lookup
QRZ Call Lookup
Las Vegas Repeaters
Link to the Site![]()
UTC
Las Vegas, Nevada, USA
County: Clark, Grid Square: DM26IE03DK
Longitude: 36.180984º, Latitude: -115.332236º