Tune power indication with SmarSDR v1.4.11

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  • Updated 5 years ago
I am running SmartSDR v 1.4.11 on Windows 7 with a 6700.  In the radio setup page I have the Tune Power set to 10 Watts.  However when I select Tune the 6700 does indeed deliver 10 Watts, but the Power Slider continues to indicate 100% while in the Tune state.

I believe someone else mentioned this.

Photo of Bernie


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Posted 5 years ago

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Photo of Jim K4JAF


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Your observation with the tune control is correct.  The tune pwr bar indicates the tune power, the above RF power is the power of the radio in a mode other than tune.  I think it has always been this way if my memory is correct.  Jim K4JAF

Photo of Gary L. Robinson

Gary L. Robinson

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One of the reasons I find the TUNE power and and RF Power useful is that when I want to tune my SB-200 tube amplifier for a band - I want to start out tuning at a low power level of 5 watts to get the load and tune controls on my amp close before I run it at full 30 watts (all I need to drive my amp to 600w PEP).

Meanwhile, I can just leave my RF Power control on SmartSDR at 30 because when I go to SSB mode (or other modes) it will use THAT 30w  power level and get me my 600w  PEP.

And then I set my TUNE power back a bit if I need to retouch the tuning quickly without overheating my 572b tubes too much - saves the tubes and elongates their life.

The Tune and RF power is the same as it was in PowerSDR and is useful. Just like Jim said - the RF power control is for when you go into a mode OTHER than tune.

---Gary WB8ROL