[arm-allstar] Simpleusb HELP

[Steve Zingman]

Ian,
I agree with Doug, The BF-888 does not provide access to the 
discriminator or modulator, so you will not be able to use the DSP in 
USBRadio to detect COS or CTCSS. The transmit is to the mic input, so 
sending CTCSS from the channel driver is no good.

Use SimpleUSB and get your CTCSS detect from the audio chip as described 
by W0FCM. The only changes I would make is to remove the mic element or 
plug in a dummy plug to the 3.5 mm connector. I would also suggest 
getting receive audio from the volume pot.
This way you don't have to worry about the volume getting bumped and 
changing your receive audio. The outside pin on the volume pot will give 
you de-emphasized receive audio at a fixed level to drive the URI. **

73, Steve N4IRS

On 1/19/2015 12:00 PM, arm-allstar-request at hamvoip.org wrote:
> Message: 2
> Date: Sun, 18 Jan 2015 22:49:15 +0000
> From:gm4upx at gb7jd.co.uk
> To:arm-allstar at hamvoip.org
> Subject: [arm-allstar] Simpleusb HELP !!
> Message-ID:<03c10dff1da41d915a9471b53de502a7 at gb7jd.co.uk>
> Content-Type: text/plain; charset=US-ASCII; format=flowed
>
> Hello,
>
> I am struggling with simpleusb and would appreciate some information on
> the difference between usbradio and simpleusb.
> eg: if I change the CTCSSfrom and CARRIERfrom in usbradio.conf does that
> reduce the " load " on the CPU ? that seems to
> be the reason to choose simpleusb over usbradio ??
>
> Here's the setup:
>
> I modified a Baofeng 888 as per the link [ W0FCM's Modification of a
> Baofeng BF-888s as an Allstar node ], very clear and
> straightforward instructions, THANKS .. My plan is to use this in a
> mobile setup. After various attempts with simpleusb I
> walked away from it after shutting everything down then returned about
> 30 mins later, switched everything on and it worked,
> had a contact for 40 mins or so, had a break, feeling good !, returned
> and found that I couldn't tx via the node but could
> rx.
>
> No amount of pushing and shoving could coax the node to do what I wanted
> so I returned to usbradio, set the aforementioned
> parms from dsp to usb and I now have a working node.  There is some fine
> tuning still to be done. With [ rxdemod=speaker ]
> and [ txctcssdefault=118.8 rxctcssfreqs=118.8 txctcssfreqs=118.8 ] I can
> access the node without any CTCSS tones.
>
> So going back to my question how can I get simpleusb to work ??
>
> Regards,
> Ian.

-- 
"Anything is possible if you don't know what you are talking about."
1st Law of Logic

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