[SPAM] RE: [aprssig] PIC and Modem experienting

Andrew Rich vk4tec at people.net.au
Wed Apr 25 02:37:32 EDT 2007


Am I reading this right ? Each time you want to TX or RX with the MX614 you
have to change m0 and m1 because there is no such mode as 1200 RX / 1200 TX

-----------------------------------------
Andrew Rich
Amateur radio callsign VK4TEC
email: vk4tec at people.net.au
Brisbane AUSTRALIA

  -----Original Message-----
  From: aprssig-bounces at lists.tapr.org
[mailto:aprssig-bounces at lists.tapr.org]On Behalf Of 'Scott Miller'
  Sent: Wednesday, 25 April 2007 2:17 PM
  To: 'TAPR APRS Mailing List'
  Subject: [SPAM] RE: [aprssig] PIC and Modem experienting
  Importance: Low


  Circuit Cellar often has articles on PICs and telemetry applications.

  I can help you with the MX614 at least - I've got them on my website at
https://www.argentdata.com/catalog/product_info.php?products_id=51 ($9) with
cheap shipping to Oz ($2.80).  It's one of the few things I've got in stock
at the moment - though I think the crystals already got moved to the new
place.  I don't have a quantity discount listed for the 614, but if you want
5 I more I can give you a break on them.  Good luck finding a domestic
distributor - even here in the States you've got to buy 10 at a time through
the regular distributors, and that only gets you a discount to $8.85 each.
And they don't like dealing with hobbyists.  That's the only reason I carry
them... it bugs me for a part so useful to hams to be so hard to get.

  Scott
  N1VG



----------------------------------------------------------------------------
    From: aprssig-bounces at lists.tapr.org
[mailto:aprssig-bounces at lists.tapr.org] On Behalf Of Andrew Rich
    Sent: Tuesday, April 24, 2007 5:30 PM
    To: ozaprs
    Cc: Aprssig
    Subject: [aprssig] PIC and Modem experienting


    Gudday

    I have been playing with a PIC chip and a GPS and a 433 MHz pair of
radio modules.

    The radio modules use ASK or OOK. I have had limited success and the
link is immune to corruption.

    I am thinking of trying MX614 and the PIC for telemetry.

    Anyone playing with PIC's for telem ?

    Looking for a source of MX614 down under as well.

    Andrew
    -----------------------------------------
    Andrew Rich
    Amateur radio callsign VK4TEC
    email: vk4tec at people.net.au
    Brisbane AUSTRALIA

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