Again, not so. There are many amplifiers with ~13 dB gain which cannot be excited by a 5W transmitter. They just won't accept that little input power.
I used my RS-HFIQ with Quisk on a Raspberry Pi I would think if someone is running Linux that they should be able to figure out how to get the RS-HFIQ running under Linux.
And again, that's not due to the FCC's 15 dB gain limit, as you continue to assert. That is a design choice made by the manufacturer. A manufacturer could produce an amplifier that is driven by 5W and produces 150W output, with a gain of 14.8 dB, which would still meet the FCC's criteria. If they don't, that's their choice. Don't blame the FCC for something that is clearly not their fault.
The TenTec 418 amplifier will output 100 watts with 5 watts of drive. I used to have one and they are a nice little amp
Maybe is WINE a solution. But it is almost a lottery game to get the Windows software stable. There is more the solution of a vitual system. But then Windows is needed again, to start it in a Linux window.
Maybe you will find something that is right for you at the following adress: https://www.rtl-sdr.com/big-list-rtl-sdr-supported-software/
That was a really good video, very informative, prcatical and not over hyped. Wish all Youtube videos were like that, you obviously know what you are talking about! 73 de Colin G8FRA/M5FRA
Hello Guys, i am running this TRX for almost 2 years and as an amplifier i am using a tiny homemade Tube amplifier which is providing about 100w . Nice tiny product and i use it all modes without any issue . I am running Quisk and a RPI3B+ a Quick Video : F5NPV - Hobbypcb RS-HFIQ SDR TRX CW mode - YouTube F5NPV-Hobbypcb RS-HFIQ in Action - YouTube 73s Didier
If a 13dB amplifier would only give you 13dB gain when excited with 50W and not with 5W, it wouldn't be a linear amplifier or at least one that is heavily compressing. 13dB is 13dB. If a correctly designed linear 500W amp gives you 13dB of gain without compression or clipping, it will also have 13dB of gain when driven with 5W or 5mW.
Not always true. There are amps designed to be driven with more than 20w because that enables the fault protection circuits. Below 20w, the low gain fault is disabled so the amp can be tuned up when the optimum settings are not yet known. Alpha and Acom amp use this. Another thing to consider are amps with Electronic Bias Switching. It takes SOME level of RF drive to enable the full operating bias to be turned on after the amp is keyed into transmit, typically 1/2 watt or so of drive. This is a heat-saving function, it partly turns off the tubes between Morse elements on CW or during dips in voice on SSB. Many Alpha amps, going back to the 77/77Dx/77Sx and 91B/99/8100, and Acom amps using the GU74B use this.
Doesn't happen. There are at least 3500 amps out there using EBS, if it was bad it would have shown up sometime in the last 50 years since they have been manufactured ...
