[450] the link

[Rich]

crap I wish I hadn’t flea-bayed mine a year or two ago....the good thing is they are easy to come by and cheap, so we can replace them easily enough.



-- "Of all the tyrannies that affect mankind, tyranny in religion is the Worst" "All national institutions of churches, whether Jewish, Christian or Turkish, appear to me no other than human inventions, set up to terrify and enslave mankind, and monopolize power and profit." -Thomas Paine

From: David McKenzie 
Sent: Tuesday, May 21, 2013 10:15 AM
To: 144.450 Mailing List 
Subject: Re: [450] the link

ok np




On Tue, May 21, 2013 at 7:58 AM, chris <cralt at comcast.net> wrote:

  Ill be in Ridgefield all day today.. I can get it to you tonight though. 

  chris
  k1mal


  On May 20, 2013, at 11:24 PM, David McKenzie wrote:


    should do the job, any chance you can drop it off while around town tomorrow? maybe some park pizza?




    On Mon, May 20, 2013 at 11:19 PM, chris <cralt at comcast.net> wrote:

      I just put an eye ball on it and it is an HTX-212.. it works fine my brother was on it not to long ago.   


      On May 20, 2013, at 9:33 PM, Bob wrote:

        Nice work Dave.






        On Mon, May 20, 2013 at 9:29 PM, David McKenzie <k1fsy at vhfwiki.com> wrote:

          John is going to run it by his parents this weekend he said. More progress on the hardware, the radio is in sorry shape but the interface appears to work. Don't know if some audio filtering is going to be needed or if I can fine tune on the OS but i'll need to try Chris' HTX soon since it's already set up. As for the PTT inversion logic I just hacked up the source code to the svxlink echolink server to PTT via GPIO pin. Here's a pic of the rough interface and the "computer".


          <image.jpeg>




          On Mon, May 20, 2013 at 9:00 PM, Bob <n1ujs at toast.net> wrote:

            Anyone got a gas tube to donate so we can leave this thing running?




            On Mon, May 20, 2013 at 5:00 PM, David McKenzie <k1fsy at vhfwiki.com> wrote:

              made some progress today with the new link controller. Keying circuit and audio appear to work fine, however RTS is automatically set HIGH when the GPIO pin for RTS is set to work as part of the serial port so at the moment if the software isn't running the interface will be keying the radio because the software holds RTS low to inhibit tx. 


              Bad news is that my HTX-212 doesn't sound like its working so well anymore, lots of CPU noise on RX and can barely hear the HT through it. Looks like we will be in need a replacement rig.


              73s


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