We do this in firmware, Jan.
The K3EXREF module uses the external 10-MHz reference to determine the exact
frequency of the 49-MHz internal reference. If a K144XV PLL is also installed,
we know that the 2-meter module is phase-locked to it. We then apply an offset
to the 10-meter IF mathematica
Wayne,
The 116/118 MHz PLL can obviously not be locked to the 49 MHz ref as you
mentioned in an early posting
describing the functions of the coming K144XV add-on board.
The present FLL solution of the KREF3 corrects the 49 MHz internally.
Which external ref will be used for the K144XV PLL, th
Wayne,
The 116/118 MHz PLL can obviously not be locked to the 49 MHz ref as you
mentioned in an early posting
describing the functions of the coming K144XV add-on board.
The present solution of the KREF3 corrects the 49 MHz internally. Which
external ref will be used for the K144XV PLL, a 10 MHz e
Jan Holmer SM6TUW wrote:
> Wayne, David, my question was unclear: I was referring to the
> optional PCB to
> be installed inside the K144XV on top of the tranverter PCB.
> The K144XV I already have. I am looking forward to the PLL function
> for
> locking the 116 MHz VCXO to the 49.380MHz. Is
Wayne, David, my question was unclear: I was referring to the optional PCB to
be installed inside the K144XV on top of the tranverter PCB.
The K144XV I already have. I am looking forward to the PLL function for
locking the 116 MHz VCXO to the 49.380MHz.
Is that project ongoing?
Jan
--
View this
Yes, Jan, that is exactly what the new firmware is for. The K144XV has
been available for several months and many of us are now using it with
much success on 2 metres. See the order page on the Elecraft web site
for details of price and delivery.
73
David G4DMP
In a recent message, Jan Holmer
Will this new firmware work with the anticipated K144XV option module ?
By the way , what is the status of the option module ?
73,
Jan
--
View this message in context:
http://elecraft.365791.n2.nabble.com/New-K144XV-firmware-released-reduces-2-meter-spurious-receive-signals-tp5608958p561
We have now released revision 1.02 of the K144XV firmware. As I
mentioned in an earlier posting, this version turns off the K144XV's
microprocessor clock in receive mode. In our lab tests, and based on
customer reports, this eliminates many if not all of the audible
spurious signals heard o
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