Les,
Bill gave you all the correct info on the Pro3 except substitute page 18 for
19 and page 13 for page 20. I use the Pro3 on 6m and transverted on 1296
with a Demi. Using the spectrum scope in the Pro is one of the best tools
for spotting activity and stations who are not quite on the freq that you
moved them to from another band. Demi does provide a 20db preamp to bring
output to 0dbm if you order it that way.
GL,
Steve
K1IIG
> Trusting the ProIII is the same as ProII, look at page 19 of the user
> manual. It reads as follows:
>
> When 2 to 13.8 V is applied to pin 6 of [ACC (2)], the [XVERT] jack is
> activated for transverter operation and the antenna connectors do not
> receive or transmit any signals. (p. 13)
>
> While receiving, the [XVERT] jack can be activated as an input terminal
> from an external transverter.
>
> While transmitting, the [XVERT] jack outputs signals of the displayed
> frequency at -20 dBm (22 mv) as signals for the external transverter. End
> of copy.
>
> Most transverters require at least 0 dBm of signal to produce full output.
> The DEM 222 for example does, and comes with an extra MMIC and parts to
> add a preamp to boost the signal to the required 0 dBm. Others may not do
> likewise.
> It is therefore important to identify the required drive for your
> transverter before trying to drive it with any rig.
>
> My 817 is an arms length away from me now, but the manual isn't so I
> cannot quote from the 817 manual if it also covers transverter operation.
> The 817 can be set for 500 mw to 5 watts output on external 13.8 V supply,
> or max 2.5 watts on internal batteries.. Hope this helps.
>
> 73,
>
> Bill VE3CRU
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