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Matt kd4pbs · 17th Mar 2021, 12:29 am

Well, that explains that...
The 1.85G filter is on the PCB on the RF block without connections into and out of the filter. It just uses the other branch of the Wilkinson splitter and connects directly to the filter with a stripline.

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Edit: I don't see where to measure the output of this filter. Is it buried down deep?

17th Mar 2021, 12:29 am	#129
Matt kd4pbs Tetrode Join Date: Mar 2021 Location: Raleigh, North Carolina, USA. Posts: 62	Re: Spectrum Analyser TR4172 Well, that explains that... The 1.85G filter is on the PCB on the RF block without connections into and out of the filter. It just uses the other branch of the Wilkinson splitter and connects directly to the filter with a stripline. Edit: I don't see where to measure the output of this filter. Is it buried down deep?