[App_rpt-users] Motorola CDM1250 JU551 position B

Bryan D. Boyle bdboyle at bdboyle.com
Tue Jan 8 17:34:31 UTC 2019


which takes even LESS time....;)

--
Bryan
Sent from my iPhone 6S...No electrons were harmed in the sending of this message.



> On Jan 8, 2019, at 12:27, Scott Zimmerman <n3xcc at repeater-builder.com> wrote:
> 
> > Take longer to wire the cable up than to get the sw working, in my experience.
> That's why I made a radio interface that plugs directly into the back of the radio. ;)
> 
> Check out the RIM_Maxtrac: http://www.repeater-builder.com/products/usb-rim-lite.html
> 
> Scott
> 
> Scott Zimmerman
> Amateur Radio Call N3XCC
> 474 Barnett Road
> Boswell, PA 15531
> 
>> On 1/7/2019 9:39 PM, Bryan D. Boyle wrote:
>> CDMs are stupid simple to connect to a URI.  Just need discriminator rx audio, ground, xmit flat audio, and ptt.  IIRC, rear connector pins 3, 5, 7, 11 (check the multitude of online sites for the specifics, but this is what I recall)
>> set up radio in CPS to send the right signals to the right pins, turn off pre/deemphasis in radio, do all the rest (COS, pl decode/encode, de/preemphasis, etc) in asterisk.
>> log in, radio-tune-menu to set levels and squelch, you are good to go.
>> Take longer to wire the cable up than to get the sw working, in my experience.
>> Simplest and fastest way.
>> --
>> Bryan
>> Sent from my iPhone 6S...No electrons were harmed in the sending of this message.
>>> On Jan 7, 2019, at 14:40, Corey Dean <n3fe at repeater.net <mailto:n3fe at repeater.net>> wrote:
>>> Mike is correct.  This is all controlled in the cps.
>>> 
>>> Corey n3fe
>>> 
>>> On Mon, Jan 7, 2019 at 2:33 PM Mike Lee <ksixmju at gmail.com <mailto:ksixmju at gmail.com>> wrote:
>>> 
>>>    There are no physical jumpers in the CDM series (750/1250/1550) of radios.
>>> 
>>>    The GM300 is the radio that has the JU551; it controls de-emphasis.
>>> 
>>>    Mike
>>> 
>>>    On Mon, Jan 7, 2019 at 11:25 AM w4ram at outlook.com <mailto:w4ram at outlook.com> <w4ram at outlook.com
>>>    <mailto:w4ram at outlook.com>> wrote:
>>>    >
>>>    > Good morning,
>>>    >
>>>    > I am using a Motorola CDM1250 for my node. I am using the DMK URI. I am wondering if is necessarry change de JU551
>>>    switch to position B as is recommended to be able to use this radio properly.
>>>    >
>>>    > Thank you for your assistance.
>>>    >
>>>    > Al
>>>    > W4RAM
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