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Re: [wsjtgroup] WSJT Learning Curve Question

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  • Joe Subich, W4TV
    ... JT65-HF s 0 point was 1270.5 Hz. Thus -1000 would be 270 Hz and +1000 would be 2270 Hz. It is easier to remember 300 - 2300 Hz .... ... The majority of
    Message 1 of 2 , Jul 19, 2013
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      > When using JT65 only, dial 14076, what is the upper and lower limits,
      > on the graph, for JT65 signals? I am trying to figure out where to
      > call CQ and still be in the old JT65-HF -1000 to +1000 range.

      JT65-HF's "0" point was 1270.5 Hz. Thus -1000 would be 270 Hz and
      +1000 would be 2270 Hz. It is easier to remember 300 - 2300 Hz ....

      > The same question would also hold true for JT-9, dial 14078, what are
      > the upper and lower limits on the graph for normal JT-9 operation.

      The majority of JT9 activity is between 14.079 and 14.080 (RF) - for a
      dial frequency of 14.078 that's +1000 - +2000. If you have a rig that
      is capable of "wideband" (4 KHz receive) operation, JT65 will be from
      +300 to +2300 ... JT9 will be between +3000 and +4000 with a mixture
      in between (JT65 is expanding up a bit and JT9 is slowly sliding down
      a bit).

      73,

      ... Joe, W4TV


      On 7/19/2013 3:29 PM, Jim Besancon wrote:
      > Greetings:
      >
      > Trying to convert from JT65-HF to WSJT-X and I am trying to figure out the
      > band pass on the "Wide Graph". When using JT65 only, dial 14076, what is the
      > upper and lower limits, on the graph, for JT65 signals? I am trying to
      > figure out where to call CQ and still be in the old JT65-HF -1000 to +1000
      > range.
      >
      > The same question would also hold true for JT-9, dial 14078, what are the
      > upper and lower limits on the graph for normal JT-9 operation.
      >
      > I have the graph open from 0 to 2800 Hz and can get to 4000Hz, if needed.
      >
      > I have not started to explore combined modes on the graph. That is the next
      > step.
      >
      > Thanks and 73
      >
      > Jim K8SIA
      >
      >
      >
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