[App_rpt-users] USB Adapter has no EEPROM installed
Corey Dean
n3fe at repeater.net
Sun Nov 1 21:27:37 UTC 2015
I have received some personals emails and thought it would be better to answer here. Xipar does have a much wider range of audio and yes it does have filters than can be adjusted so I am not using this comparison in the usbradio / simpleusb comparison.
Dave... Are you actually calibrating your head set with the service equipment? If not then you don't have a base level to compare against. I still can't find the graphs I had from this or I would post them. The screen went on my test equipment so I can't do anymore testing until I find another screen.
Sent from my iPhone
> On Nov 1, 2015, at 3:50 PM, David McGough <kb4fxc at inttek.net> wrote:
>
>
> Hi Guys,
>
> I agree 100% that personal attacks only start flame wars and don't solve
> any problems.
>
> However, I do agree with Fred. For those who haven't heard the difference
> between simpleusb and usbradio, I suggest a simple test with a stock USB
> sound FOB and a computer audio headset and mic combo....Put the USB FOB in
> full duplex mode and talk to yourself. While I realize this is an
> unscientific test, the difference between the two channel drivers is
> immediately obvious and striking!
>
> While many hams out there (including myself) do have great -radio- test
> equipment, most lack the equipment to carefully check audio dynamic range,
> frequency response and other audio-specific parameters.
>
> Incidentally, for comparison purposes, another interesting experiment is
> to try this same headset test with one of the commercially available
> analog controllers out there...I've tried that, too, and as expected, the
> performance is even better, substantially better....But, I digress.
>
> If anyone wants to try this and doesn't know how to proceed, I'll post a
> link to my exact test setup, if interested.
>
> Anyhow....Please don't take these comments in a negative way. My -only-
> intention is to push the state-of-the-art forward.
>
>
>
> 73, David KB4FXC
>
>
>
>
>
>
>
>
>
>
>> On Sun, 1 Nov 2015, Jim Duuuude wrote:
>>
>> Fred, this list is NOT a place for personally insulting remarks such as
> that. That type of behavior is not tolerated here.
>>
>> Besides, as far as I am aware, Cory has, and uses, more then his 'ears'
> to make such determinations. He is one of the people on this list that
> has good, proper test equipment, and knows how to use it.
>>
>> Jim, WB6NIL
>>
>> To: n3fe at repeater.net
>> From: fred at fmeco.com
>> Date: Sun, 1 Nov 2015 14:56:58 -0500
>> CC: app_rpt-users at ohnosec.org
>> Subject: Re: [App_rpt-users] USB Adapter has no EEPROM installed
>
>
>
>
> Cory, You might have your hearing checked, you most likely think
> d-star sounds good also.
>
> I never said USBradio was horrible, simply said usbradio audio is
> superior. It's a subjective thing, most can hear the difference..
> obviously you can't or you would not have made such a statement...
>
>
> The only answer to the argument you want.. Fred
>
>> On 11/1/15 12:54 PM, Corey Dean wrote:
>>
>
>
>
> What degraded audio? I have ran many many test and have yet
> to find this 'degraded audio'. I have heard people talk about
> it but have yet seen any proof...
>
> Sent from my iPhone
>
> On Nov 1, 2015, at 12:32 PM, Fred Moore <fred at fmeco.com>
> wrote:
>
>
>
>
>
> Larry can't answer #1.
> I simply program the radio to provide what I want on the
> accessory connector, then there is no EEPROM needed.
>
> As for answer #2
> When you have COS and CTCSS (PL) available use simpleUSB it
> not only requires less processing power, it also does not
> suffer from degraded audio.
>
> Just add the file and stanza you need..
>
> regards.. Fred
>
> On 11/1/15 6:21 AM, Larry da
> Ponte wrote:
>
>
>
> Two questions for the group:
>
>
> #1 I'm seeing this in my /var/log/asterisk - I'm using a
> DMK URI with EEPROM and a Motorola GM300 with one of
> Marshall's Motorola Maxtrac, GM300 and M120 16 Pin Radio
> to URI cables.
>
>
> [Nov 1 11:30:05] NOTICE[6852]
> chan_usbradio.c: USB Adapter has no EEPROM installed
> or Checksum BAD on channel usb42372
>
>
> I understand that the benefit of the DMK URI with
> EEPROM is that the interface configuration can be
> stored in the URI as apposed to (where else?) - is
> this URI EEPROM feature taken advantage of with
> app_rpt and associated drivers?
>
>
> #2 How do I choose which channel driver to use -
> simpleusb or USBRadio? From what I've been able to
> learn through varius wikis and posts on the subject, I
> would want to use simpleusb because all of the
> hardware connections for COS and CTCSS are provided so
> there is no reason to use the DSP features of USBRadio
> thus simplifying what the driver has to do and perhaps
> lowering the CPU utilization. I've also read some
> posts that describe audio degredation in the USBRadio
> driver but I can't tell you the cause. I expect the
> right answer here is for me to try out both and
> experiment - which I will do but would appreciate any
> wisdome from the group on their experience with these
> drivers when using the DMK URI and hardware
> connections for COS/CTCSS. My current configuration
> below is getting favorable audio reports.
>
>
> I have no simpleusb.conf in my /etc/asterisk
> I have usbradio.conf and
> usbradio_tune_usb42372.conf
>
>
> I have the following in my
> rpt.conf: rxchannel=Radio/usb42372
>
>
> I have the following in my usbradio.conf:
>
>
>
> [usb42372]
>
>
> hdwtype=0
> rxboost=1
> txboost=1
> rxctcssrelax=1
> txctcssdefault=71.9
> rxctcssfreqs=71.9
> txctcssfreqs=71.9
> ;rxctcssoverride=0
> carrierfrom=dsp
> ctcssfrom=dsp
> rxdemod=flat
> txprelim=yes
> txlimonly=no
> txtoctype=notone
> txmixa=composite
> txmixb=no
> invertptt=0
> duplex=0
> rxondelay=0
> rxnoisefiltype=0
> eeprom=1
>
>
>
>
>
>
>
>
>
>
>
>
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> --
> Fred Moore
> email: fred at fmeco.com
> fred at safes.com
> phone: 321-217-8699
>
>
>
>
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> --
> Fred Moore
> email: fred at fmeco.com
> fred at safes.com
> phone: 321-217-8699
>
>
>
>
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