Astro Tuner and TX Value

[RADIO43]

Group,

I am wondering if there is a way to turn off or turn down the power to next to nothing using Astro Tuner. I am specifically speaking of the TX High,Mid, and Low Power settings. If I turned all of these down to the lowest possible value will it just TX in a few millawatts or is this not possible?

Thanks in advance

Radio43

[radio-link]

Group,

I am wondering if there is a way to turn off or turn down the power to next to nothing using Astro Tuner. I am specifically speaking of the TX High,Mid, and Low Power settings. If I turned all of these down to the lowest possible value will it just TX in a few millawatts or is this not possible?

Thanks in advance

Radio43

Of course this is possible, I just do not know how low the power is - I guess something like 100mW should be possible. But why not give it a try? Note down the old values, then nothing can go wrong.

[tvsjr]

I've never tried it, but beware that many PAs, depending on their construction, do Bad Things if you turn the power down too much (you might create a broadband noise generator if you're not careful)...

I'd suggest you look at the output with a spectrum analyzer after tweaking on it, just in case.

[mike m]

Mot doesn't recommend going below around 400milliwatts due to the power amps going spurious below this level. 100 milliwatts would definitely not be recommended.

[radio-link]

Mot doesn't recommend going below around 400milliwatts due to the power amps going spurious below this level. 100 milliwatts would definitely not be recommended.

Interesting to know. I never dod go below 500mW, without any spectral abormal behaviour, but I will do some tests when I have some more time :)

[tvsjr]

Not that it's a portable, but 110-watt X9000 power amps tend to get weird under 60 or so watts of output... same basic premise on portables, just less power (I could go on about transistors, Q-points, and all that, but it would bore everyone and bring back memories of Electronic Circuits I <shudder>).