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MFJ-868 SWR/Wattmeter
On 9/7/2011 11:54 AM, Jeff Liebermann wrote:
The plot thickens. I checked the accuracy of the MFJ-269 and is was off on the real part of anything it was measuring about +10%. A good 50 ohm load would read about 56 ohms. It didn't take long to find the culprit. Instead of 51.1 ohms (1%), R88 showed 54 ohms, while R85 and R86 read 52 ohms (or there about within the limits of my cheapo ohms-guesser). It therefore seems possible that the owner had transmitted into the instrument (even though he denies it). Yeah, denial is de rigueur. - 73 de Mike N3LI - |
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