A Remote Station for CW ContestingA Remote Station for CW Contesting

James C. Huhta, M.D.

AA4MD

With thanks to Blake N4GI

Perinatal CardiologyPerinatal CardiologyCardiology for the fetus, child, and motherCardiology for the fetus, child, and mother

AA4MD Remote StationAA4MD Remote Station

• Utilize a db-18 Steppir antenna from a remote location

• Access all equipment via a home Verizon router

• CW logging, spotting, and internet lookup = N1MM

• TenTec Omni7 using N4PY control software

AA4MD Remote StationAA4MD Remote Station

Viao Laptop

N4GI Remote StationN4GI Remote Station

Viao Laptop

AA4MD Remote StationAA4MD Remote Station

Remote Station

Internet capable transceiverInternet capable transceiver

TenTec Omni7

Antenna ControlAntenna Control

Db-18 controller SDA100

Antenna ControlAntenna Control

Ameritron Antenna Switch

Antenna ControlAntenna Control

Microham Station master band decoderFollows the Omni 7

Amp sensing FrequencyAmp sensing Frequency

Alpha 87A Amplifier Follows the Omni 7 Frequency

Amp MonitoringAmp Monitoring

Digital Wattmeter – RS232

Inhibits AmpFor SWR>2:1

Amp MonitoringAmp Monitoring

Digital WattmeterLantronix control

Inhibits AmpFor SWR>2:1

Lantronix UDS 1100Lantronix UDS 1100Internet to serial deviceInternet to serial device

Lantronix UDS 1100Lantronix UDS 1100Internet to serial deviceInternet to serial device

Antenna Control

Antenna ControlAntenna Control

AlphaSpid Rotor Controller-RS232

Antenna ControlAntenna Control

AlphaSpid Rotor Controller

AA4MD Remote StationAA4MD Remote Station

Control power remotely = IP Power 9258Controls 4 AC power strips

Will there be a tomorrow without the children?

B

AA4MD Remote StationAA4MD Remote Station

Viao Laptop

N4GI Laptop

Final ConclusionsFinal Conclusions

All equipment at the station is controlled directly over All equipment at the station is controlled directly over the ethernet, - no PC is required at the remote site.the ethernet, - no PC is required at the remote site.

Equipment used includes:, Lantronics serial ethernet Equipment used includes:, Lantronics serial ethernet

servers for rotor, wattmeter, and Alpha 87A, servers for rotor, wattmeter, and Alpha 87A, Ten Tec Omni VII. Ten Tec Omni VII.

Antenna switching is automatically through a band Antenna switching is automatically through a band decoder interfaced with the rig. decoder interfaced with the rig.

Audio is handled directly via the Omni VII,Audio is handled directly via the Omni VII, with near zero latency. with near zero latency.

This presentation will be up on http://www.aa4md.comEmail: aa4md@aol.com

Thanks to Blake N4GI

Thanks!!Thanks!!