Just in time for Christmas... sort of. For all of you who expressed
interest in the LP-200 project, I have added "Buy Now" PayPal buttons on
the LP-200 webpage. Deliveries will start in early January, due to
manufacturing lead time on the PCB and bottom plate.
I made some small changes, which include adding the HP dual Schottky
diode detector, which eliminates diode matching and some of the
calibration procedure... and I also changed some of the cal screens,
adding a second gain screen for high power, and an offset screen for
zero'ing out the opamp offset error.
I have also started a new wattmeter project, the LP-300, which is a
handheld, battery operated directional wattmeter with digital readout.
The project is in the prototype/testing phase, and should be ready in
2-3 weeks. It borrows heavily from the LP-100 and LP-200, has digital
readout and a number of features important for portable use. I mention
this only because I thought you should all know about it in case you
feel it is better suited to your needs than the LP-200. I believe the
three wattmeters provide different needs, but there is obviously some
overlap of features since they are all wattmeters ;-)
I have also added a webpage with a comparison matrix of the three
projects. If you go to my home page, www.telepostinc.com, you will find
links in the LATEST NEWS section to the LP-200, comparison matrix and a
preliminary look at the LP-300.
73,
Larry N8LP
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