Re: W2 Wattmeter
Posted by
David Fleming-2 on
Jan 03, 2010; 4:37am
URL: http://elecraft.85.s1.nabble.com/W2-Wattmeter-tp4242517p4244922.html
--- On Sat, 1/2/10, NZ0T <
[hidden email]> wrote:
> As far as resolution goes the computer display
> resolution does rely on LED's
The resolution of the interface software's bar indicators is actually 10 times the resolution of the LED display. The FWD and REFL bar indicators have 200 units of resolution compared to only 20 LED's on the W2. The SWR bar does follow the LED's. The textual power readouts resolve to .1 watt at the 2KW range, .01 watt at the 200W range and .001 watt at the 20W and 2W ranges.
The plus (+) and minus (-) buttons (lower right corner of window) can be used to calibrate the active sensor to an external source. The value is saved in EEPROM for that type of sensor (HF 200W, HF 2KW, VHF), regardless of which sensor is used.
New version soon with 'Always on top' and multiple instances support.
David, W4SMT
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