flex 6400 double rx

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  • Updated 1 year ago

why is it not possible to open a double rx on the same frequency when the dual receiver is active on different frequency? the bandwith is 7mhz
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Lou - IK8HCG

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Posted 1 year ago

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Photo of Pat N6PAT


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Alan W4FBI

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Mark WS7M

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The 6400 has 1 SCU.  This means you have one ADC sampling the RF spectrum.

You should be able to open two slices on the exact same frequency with no issues.  But they would both be obtaining their data via the single SCU so you would be limited to one antenna.

The 6600 and 6700 have two SCU making it possible to have two slices using two different RX antenna on the same frequency.

Does this begin to answer your question?
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David Decoons wo2x, Elmer

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To explain further, you can only have a maximum of two receiver slices. In your initial explanation suggests you already have two slices open. A third, even on same frequency of first slice is not possible with 6400, 6400m, or 6300.

Here is a quick breakdown

6300/6400/6400m - two panadapters, two slices, I SCU, and 7 mHz bandwidth maximum. Only 1 antenna can be active at a time.

6500 - four panadapters, four slices, 1 SCU, and 14 mHz bandwidth maximum. Only 1 antenna active at a time.

6600/6600m - four panadapters, four slices, 2 SCU, and 14 mHz bandwidth per SCU maximum. Only 2 antennas active at a time maximum.

6700 - four panadapters, eight slices, 2 SCU, and 14 mHz bandwidth maximum per SCU. Only 2 antennas active at a time. Also 2 meter receive.

This table gives all the details.

Dave wo2x