Loading ...
Sorry, an error occurred while loading the content.

Re: [softrock40] Re: Best 40KHz for PSK & SSB QRP on 40 & 80M? UPDATE

Expand Messages
  • Tony Parks
    A quick look at the low cost crystals stocked by Digi Key give the following fits to the desired center frequencies and band coverage. 40m- 28.224 MHz crystal
    Message 1 of 2 , Jan 1, 2007
    • 0 Attachment
      A quick look at the low cost crystals stocked by Digi Key give the following fits to the desired center frequencies and band coverage.
       
      40m- 28.224 MHz crystal gives center frequency of about 7.055 MHz with TX band coverage 7.035 MHz to 7.075 MHz
      80m- 14.318 MHz crystal gives center frequency of about 3.579 MHz with TX band coverage 3.559 MHz to 3.599 MHz
       
      40m- 28.636 MHz crystal gives center frequency of about 7.159 MHz with TX band coverage 7.139 MHz to 7.179 MHz
      80m- 15.0 MHz crystal gives center frequency of about 3.75 MHz with TX band coverage 3.73 MHz to 3.77 MHz. 
       
      73,
      Tony KB9YIG
       
      ----- Original Message -----
      From: kd4e
      Sent: Monday, January 01, 2007 2:03 PM
      Subject: [softrock40] Re: Best 40KHz for PSK & SSB QRP on 40 & 80M? UPDATE

      Just remembered to look at Andrew's proposed calling
      freq. list and the new ARRL band plan list on my wall!

      Do these look OK for digital & SSB modes if one is
      limited to a 40KHz total range?

      Note: I want to be certain that at least part of
      each segment is in the USA General Class portion
      so I don't miss those ops.

      DIGITAL
      --------
      Band Low Center Top
      40M 7.035 7.055 7.075
      80M 3.575 3.595 3.615

      SSB/SSTV
      --------
      Band Low Center Top
      40M 7.180 7.200 7.220
      80M 3.780 3.800 3.820

      > I am getting a 40/80M Softrock QRP device.
      >
      > I need to specify the 40KHz segments of 40 & 80M
      > for SSB & PSK for which I would like the device
      > set.
      > Your recommendations, please?

      --

      Thanks! & 73, doc, KD4E
      Have a joy-filled New Year!
      ~~~~~~~~~~~~ ~~~~~~~~~ ~~~~~~~~~ ~~~~~~~~~ ~~~~~~~
      Projects: http://ham-macguyve r.bibleseven. com
      Personal: http://bibleseven. com
      ~~~~~~~~~~~~ ~~~~~~~~~ ~~~~~~~~~ ~~~~~~~~~ ~~~~~~~

    Your message has been successfully submitted and would be delivered to recipients shortly.