SGC SMARTPOWERCUBE SG-500

Questions and Answers

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Joseph MaysJul 31, 2025
What to do if VSWR trip is off-line in SGC SMARTPOWERCUBE SG-500?
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  daltontravisJul 31, 2025
  To resolve a VSWR trip off-line issue with your SGC Amplifier, verify the integrity of your antenna and feedline connections. Inspect for any signs of arc-over or dielectric breakdown in the feedline. Make sure your antenna resonates (SWR
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alexis01Aug 7, 2025
How to fix CURR trip off-line or VOLT trip off-line on SGC SMARTPOWERCUBE SG-500?
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  Kurt RodriguezAug 7, 2025
  If the CURR or VOLT trips are off-line on your SGC Amplifier, ensure that the power supply maintains a voltage greater than 11.0VDC under load. Check the DC cable connections, use #6AWG wire or heavier, and keep cable lengths as short as possible. Verify the battery charge state and voltage droop under load. Consider using separate power supplies for the amplifier and transceiver, and reduce the input drive level.
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suttoncharlesAug 15, 2025
What to do if TEMP LED is flashing on SGC SMARTPOWERCUBE SG-500 Amplifier?
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  Gloria RiceAug 15, 2025
  If the TEMP LED is flashing on your SGC Amplifier, reduce the drive level or duty cycle. Ensure the fan unit is operating by checking the FAN plug on the front panel ACCESS connector, or supply forced cooling to lower the heatsink temperature.
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webbmichelleAug 22, 2025
Why is there no PTT Keying on my SGC Amplifier?
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  Dylan ElliottAug 22, 2025
  If there is no PTT Keying with your SGC Amplifier, ensure that the transceiver, amplifier, and DC supply all utilize a common ground return. You can also use an externally-switched relay for PTT line control.