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Re: Dummy


Vince Vielhaber
 

Are you referring to the AD-8307 ??

Vince.

On 12/22/2017 11:25 AM, Michael Hagen wrote:
You can buy the wattmeter IC on eBAY or buy the whole board. I don't
remember, AD?

I think I got the IC for about $1. I got it to track fairly well from
0 to -40 dBm.

I was using an HP function generator at 10 MHz. Nice, you can dial in
dBm directly.


You would have to make a pi or t pad in front of them. Reduce the power.

I used the Arduino to read them.

The info is on the net. Search eBay too.

73's

Mike, WA6ISP


On 12/22/2017 8:12 AM, David Lacey via Groups.Io wrote:
Hi Jack
Very interested in the Wattmeter side of this project, do you have
further information circuit diagram etc
on this item or maybe available as a kit??
Dave
G4JBE

On 22/12/2017 16:04, Jack Purdum via Groups.Io wrote:
Mike:

Or, how about 150W DL with builtin wattmeter for under $20? This was
a build our group did a couple of months ago. The lid is shown here.
The resistor network sits in a mineral oil bath. The downside is that
this is considerably larger than yours and a little more expensive.

Inline image

Jack, W8TEE

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