The following files have been uploaded to the Files area of the [email protected] group.

• /DINAH V4 Construction Manual_v4.0.pdf

By: N8AR

Description:
Latest version of the DINAH Construction Manual

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Where in the circuit did you confirm the squelch is performing as expected?? Have you looked at it on the anode of D1 on the DINAH PCB?

Pin 48 of the CM108B on DINAH (COS input) is pulled high (about 3.3 volts) by the CM108B.? An open drain FET on the RS-UV3 pulls pin 48 low (about .2 volts) through D1 when the FET is turned on.

The RS-UV3 manual says "COR output - Low when squelch is open, open circuit when squelch is closed".? ?Are you sure you have the polarity for COR (COS) set up correctly in Dire Wolf?

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Please check the solder joints on D1.? We have had a report of a unit with one end not soldered.

Steve - N8AR

It appears that the COS is not behaving properly on the DINAH card on a
Raspberry PI 3+ using Direwolf 1.6

I do not see the problem you are describing on my Kenwood TM-V71a.
What radio are you using?
/Basil n7nix

I have a Yaesu CT-175 it is also 6pin to 10 pin din. It is the HRI-200 specified cable I believe the cable designations are identical. I used it to try linking a DINAH to a DR2X Yaesu repeater and found it only works 1/2 duplex. (as transcievers like a FTM-300DR is 1/2 duplex.)
It's for sale. I paid $29.95 plus shipping. I ship it to you for that same $29.95. Contact me w8lm at arrl dot net

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I have a new Yaesu FTM-300DR and found out that the?CT-164 6-pin to 10-pin miniDIN adapter cable works just fine with DINAH.

Just found out that the new FTM-300DR with the?CT-164 6-pin to 10-pin miniDIN adapter cable works just fine on the DINAH.

I could easily modify the layout so that JP1 selected 1200 or 9600
baud (normally connected for 1200 baud).

I would then also delete D2 and C10. I could also add another jumper
that could be cut (normally connected) so that COS could be
disconnected. Here is what I propose:

Would these changes be useful in order to use DINAH for DireWolf?

YES. Confirmed.

I modified a cable so that pin 4 9600 baud receive input from a radio
(TM-V71a) connected to pin 5 1200 baud receive input on DINAH which is
what one of your suggested changes does. I tested @ 9600 baud with
direwolf and it worked very well.

The other change you have suggested that allows a pin 6 SQL/COS
disconnect would be helpful for the Yaesu multi band radios
(FT817/FT857FT897).

/Basil n7nix

Hi Steve,

I configured direwolf to use DINAH as a sound device @ 1200 baud when I
initially received the kit. It was straight forward and easy to do.

I have been wanting a path to programatically switch between 1200 & 9600
baud packet for a while. I demonstrated how to do that manually, using
scripts running on a Raspberry Pi at the 'APRS Summer Gathering' (North
Bend, WA) a couple of years ago. Recently I wrote some scripts to
remotely change the baud rate of a gateway using Touch Tones. I just
finished that project


and will be updating the README some time today. I am now focused on
using PulseAudio and virtual sound devices to run both the 1200 & 9600
direwolf modems on the same audio channel. The hard part is virtualizing
the PTT method. I am fairly certain I can get this to work.

Both the Touch Tone method & the virtual sound device method could work
on DINAH after I make a cable that routes the radio discriminator output
(mDin 6 pin 4) to the DINAH input (mDin 6 pin 5)

There is a requirement that a 'good' digital capable radio must be
used. I am currently using a Kenwood TM-V71A. 1200 baud packet works
quite well using the radio's discriminator output which is usually
labeled 9600 baud. This means that when switching baud rates everything
is done in software and radio configuration does not need changing.

This is a long way around to saying YES to:

Would these changes be useful in order to use DINAH for DireWolf?

However, I think you might wait a bit until I make a cable that routes
mDin 6 pin 5 (1200) from DINAH to mDin 6 pin 4 (9600) on the radio to
get confirming data that this will work for the DIANH audio device.

I could also add another jumper that could be cut (normally connected)
so that COS could be disconnected

It is my experience that the Yaesu multi band radios (FT817/FT857/FT897)
do something different with the mDin6 pin 6 line (squelch) then iCom or
Kenwood radios. Removing mDin6 pin 6 fixed the problem with the NW
Digital Radio DRAWS audio codec device ()

/Basil n7nix



Alexander Moore <kitsforhams@...> writes:

JP1 was intended to either have a way to bring CTCSS into DINAH using
a custom cable or supply 5 VDC to something that DINAH was plugged
into. I could easily modify the layout so that JP1 selected 1200 or
9600 baud (normally connected for 1200 baud). I would then also delete
D2 and C10. I could also add another jumper that could be cut
(normally connected) so that COS could be disconnected. Here is what I
propose:

Would these changes be useful in order to use DINAH for DireWolf?

Steve - N8AR

Since all DTMF commands begin with the asterisk, check again to be sure that it is being decoded.

Also, you can set and check your DTMF tone levels more accurately using the method described in this document (?Setting the RX Level in HamVOIP Allstar.pdf? ) located in the FIles section of this group.

Steve - N8AR

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