[OZAPRS] No DCD on Tiny-2

Geoff Gatward geoff-lists at gatwards.org
Tue Nov 15 08:15:01 EST 2011


Is there anything coming from the radio on the 1200RX line?   Try
connecting up the speaker socket for RX audio to verify - but volume
control will be important here.  I have an FT-8100 and I had a problem with
the integrated data socket with the 9600RX line not working....   (fixed
along with some CTCSS issues I was having)

Cheers,
Geoff VK8GG



On Tue, Nov 15, 2011 at 3:48 AM, David Matthews <vk2kfa at yahoo.com> wrote:

> Hi list-ers,
>
> I'm having trouble getting a Tiny-2 talking to an FT-817.
> Thus far I've got the PC end working fine, it signs on
> and I can issue commands and get responses etc,
> however I've got no DCD ...
>
> When I power on the Tiny-2,
> - DCD flashes *very* briefly then extinguishes,
> - STA & CON stay illuminated for a second then extinguish,
> - PWR stays illuminated.
>
> Now the cable I'm using is a homebrew CT-39A taken from an old PS2
> keyboard, with
> FT-817 pin 1 (TX)  <--> Tiny-2 pin 4 (RX)
> FT-817 pin 2 (GND) <--> Tiny-2 pin 2 (GND)
> FT-817 pin 3 (PTT) <--> Tiny-2 pin 3(PTT)
> FT-817 pin 5 (1200 RX) <--> Tiny-2 pin 1 (TX)
>
> I've checked the Tiny-2 internal jumpers, both are set to 1200.
> The FT-817 is set to PKT and menu 40 specifies 1200.
> When tuned to 145.175 I can hear packets but there's no indicator light
> activity
> on the Tiny-2, even with an open squelch and audible packets
> (no DCD, no nothing, just a illuminated PWR and that's it).
>
> Suggestions, please ?
>
> 73s and TIA,
> David VK2KFA
>
>
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>
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