Hi Randy,
It took me a minute, but I see what your refering too.
I should have been a bit more careful in my wording.
I should have said "I don't believe the unit uses latching relays, and
so ~100mA on the DC line is required in order to re-activate them".
The Processor internal EPROM, does retain all relay settings.
But to my knowledge, the relays will not return to their active state
without DC.
In normal operation, to get the unit to un-remember a setting, I switch
the K2 to another band, find a clear spot, tap the key once, then switch
back.
This seems to work for me to temporarily confuse the processor and force
a full retune.
But perhaps there is more to this concerning the setting you mentioned?
Perhaps the unit does have latching relays and doesn't require DC?
Thanks
N1BBR
----------------------------------------------------------------------
Say what? Both of mine do. After a power cycle, all the tuning relays
do come up in the open state, but a few dozen milliseconds of low
power RF at the desired operating frequency will restore the proper
matching condition almost instantly. As a matter of fact, one of the
annoying little quirks of the 230 is how very difficult it is to make
it "unremember" the setting for a particular frequency. Do you have
the "Tune From Memory" jumper in your tuner set to "NO" by any chance?
73...
Randy, W8FN
>The SG-230 does require a continuous stand-by power of about 100mA while
>in use.
>It does not retain it settings when power is removed.
>This may or may not be a concern in emergency (battery) operation.
--
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