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Reading the S-Meter on Two Slices

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Paul Casper
Paul Casper Member
edited June 2020 in FLEX-6000 Signature Series
I am trying to read the S-Meter from two slices on RXA.  I am using the two CAT commands below:

ZZSM0
ZZSM1

 ZZSM0 reads slice A just fine, but ZZSM1 seems to also read slice A instead of slice B.. I am trying to approximate the (S+N/N) by reading the S-meter on slice A (signal+noise) and the noise floor from slice B (noise) on a nearby clear frequency.  My transceiver is the 6700.  Can anyone clear up this mystery for me?  Thanks in advance.

Paul. K4HKX

Answers

  • Tim - W4TME
    Tim - W4TME Administrator, FlexRadio Employee admin
    edited March 2017
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    See the note on the ZZSM command in the SmartSDR CAT manual.  It states...

    P1 = Slice Receiver Index (0 – 7) Note:  Currently limited to RX A
  • Paul Casper
    Paul Casper Member
    edited June 2020
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    Tim, thank you for your response. I think I was confusing "slice receiver A" with hardware receiver A (SCU-A). Also, it is a bit confusing to label slice receivers A, B, C, etc. on the panadapter, but specify them as 0, 1, 2, etc. in the CAT commands. Anyway, I now understand only the A receiver on the panadapter can be interrogated. Hopefully this will be expanded in the future to other slices.
  • Peter K1PGV
    Peter K1PGV Member ✭✭✭
    edited June 2020
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    The Slice A vs Slice B thing versus the API or CAT commands is confusing.  SSDR labels the Slices A and B for user consumption, but IIRC this doesn't necessarily correspond to indices 0 and 1 in the API (or, presumably, in the CAT commands). Again assuming I'm remembering correctly, Slice 0 in the API is always present... it's the first slice, even if that slice happens to be labelled Slice B in SSDR (Slice A having been closed).  Hence the complexity.

    Another one of the Flex API programmers, or Tim, or one of the devs, will hopefully chime-in and correct me if I'm wrong here... but that's how I recall it working.

    Peter
    K1PGV
  • Tim - W4TME
    Tim - W4TME Administrator, FlexRadio Employee admin
    edited December 2016
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    "Hopefully this will be expanded in the future to other slices."

    It and other CAT commands will be extended to multiple slices in the upcoming SmartSDR v1.6.x release.

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