No multimeters do not measure power.? Nor will they respond to voltage at frequencies? the FT818 will work at.
IMHO all Ham should have a SWR meter and one that is calibrated for power.? It can be useful in many ways, just not monitoring the rig's output, but also aiding in making antennas.
If getting a power meter make sure it is made for the frequency you need.
On Tuesday, June 25, 2024 at 04:05:29 PM EDT, Ham Radio <bernard.murphy@...> wrote:
An RF probe is easy to make but should be calibrated. ?A plain SWR meter does not measure power across a large frequency range. ?Borrow a Bird 43 from a local ham and calibrate your device(s) including a SWR bridge, ?if you have one.
You can also make a watt meter using a Arduino Uno and with a power tap and a dummy load. ?I have built one that speaks and one that generates CW. ?Click on link below for details.
https://youtu.be/RbaCiTmmYDQ?si=1N9Oz01RQD_J1DJ6
Also, check out KC9ON.COM. ? ? ? He sells some very nice kits and is really nice person to deal with.