EEVblog Electronics Community Forum
Products => Test Equipment => Topic started by: joeqsmith on October 02, 2016, 01:50:43 am
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I bought this meter new and it started acting up. Never was a real great meter but good for a ballpark with low frequencies. This is the first time I have had it apart.
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Can is made from two parts. One brass. Soldered together. The two circuit boards are also soldered together.
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The meter became very unstable. It has not been abused. When I removed the can, there is some crazy rework in there. Once apart, the thing started working. Spent a fair amount of time trying to find a cracked joint in this mess.
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Really, not that bad for low frequency. They claim +/-10% of full scale from 10MHz to 1GHz. Full scale ranges are 2W, 200mW, 20mW and 2mW.
Shown with 10,1 and -1dBm.
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Shown with 2G, 10dBm. Not so great. There are 4 pots to align it but I doubt there is anything to trim it for flatness. I suspect that's what the crazy pile of soldered together mess was for.