Paul is right. I got my 580 off the shelf, plugged it in and looked at 17
and 24 meters. Eventhough I have no xtals, it still displays the frequency
or at least what it thinks the frequency is! The reason for this is because
the display is reading the frequency of the 2nd mixer/osc even though the
1st mixer/osc is disabled due to lack of xtals.
This is just the opposite of the Omni-C which is a single conversion rig.
>> I have a Delta 580 that won't transmit or receive on 30, 17 or 12 meter
bands.
><snip>
>> did not have crystals for these bands but the freq display on my delta is
>> correct so I'm assuming that the crystals are installed.
>
>It's been a long time since I owned a Delta, but I *believe* you had to
>order the MIXER OSC crystals. The display, like most Ten*Tecs, is
>mechanical/electronic (i.e. a bandswitch tells the display which MHz LEDs
>to light up). The KHz digits are derived from the VFO. So of course
>there is a display, but without the mixer osc, no TX/RX.
>
>But that's just an opinion, I could be wrong.
>
>73! =paul= W8KC
>Collector of Ten*Tecs and other fine plastics
><http://www.acs.oakland.edu/~prvalko>
>
>
>
>
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>
>
>
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