[arm-allstar] chinese mobile radio??

[Kevin Custer]

Typo - this should read...

.....the hardware has been redesigned to provide less attenuation in the 
audio path when using pin 21.

Kevin

On 4/26/2019 8:31 PM, Kevin Custer wrote:
> Brian,
>
> By chance is the DMK URI you have and newer "URIxB"?  If so, the 
> hardware has been redesigned to provide less attenuation in the audio 
> path when using pin 25.  This is a requirement to make the URIxB have 
> the same RX audio level as compared to a URIx.  This was accomplished 
> by changing the value of R5 (previously a 470k) to a 39k.
>
> Kevin W3KKC
>
> On 4/26/2019 6:12 PM, "B Harvey via ARM-allstar" wrote:
>> John,
>>
>>     I connected mine to a DMK-URI USB audio adapter before connecting 
>> to the
>> RPi. For the most part, it was a direct pin to pin connection between 
>> the
>> Alinco DB9 and the URI DB25 with the exception of one DC blocking 
>> capacitor
>> at pin 9 of the DB25. For some reason, the standard input on my URI 
>> doesn't
>> have enough gain on the standard receive pin. I can provide the pin 
>> wiring
>> I used if you'd like.
>>
>>
>> Brian / KKDOQ
>