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Saturday, 3 November 2018

TS-890 - Max PO Feature

Well,

There's been a few posts recently about the "Max PO Feature" on the TS-890; I have been using this extensively since I got the radio so that it plays nicely with my linear.

Here is the result of pressing and holding the "Max-Po" soft key on my rig:


So, in this screen you can set the tune power and also the max power out on each band. If you look at the image above you can see that the power output in the very top centre is 11W and is Yellow. The yellow indicates that its been restricted by the Max-PO setting.

You also need to be aware of the setting of menu 6-04:



Now, the only confusion I can see (and it isnt intuitive at all!) is when you press the "Max-PO" soft key with just a short press, you would expect the feature to turn on and off. Well, almost; here's what the radio does when the power restriction is already ON and you press the soft key with one short press:


So, the radio is telling me that the "TX Power Limit is turned Off" BUT IT ISNT!

Only once you press the "OK" soft key at the bottom centre does the feature actually turn off, if you press escape to suppress the on-screen message, then the feature remains ON.

So, once you press "OK" then the soft key changes to:


So here the feature is Off and the soft yes "MAX_Po OFF" actually turns the feature ON with a single short press.

A bit confusing, but easy when you know how!

An excellent feature for people like me who need different drive levels for different bands due to amplifier oddities.

NOTE: The power output limits are DIFFERENT by different mode, so here we have limits for CW:


and here a DIFFERENT set for FSK:


They aren't all listed on the same screen at the same time, so that had me confused for a while too!

All good.

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