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My point is that it will not do what Grogan wants and is only for a half reasonable approximation of something that is on a test bench and not for off-air pick-up. It just doesn't have the sensitivity nor the resolution for what he wants.

My FT-857 has a crude spectrum scope built in but I never use it as there is just too much activity on an HF band and as for finding out where the QRM is coming from I simply turn the VFO knob a few turns.

[QUOTE="Captain Kilowatt, post: 338314, member: 39"] My point is that it will not do what Grogan wants and is only for a half reasonable approximation of something that is on a test bench and not for off-air pick-up. It just doesn't have the sensitivity nor the resolution for what he wants. My FT-857 has a crude spectrum scope built in but I never use it as there is just too much activity on an HF band and as for finding out where the QRM is coming from I simply turn the VFO knob a few turns. [/QUOTE]

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