<font color='black' size='2' face='arial'>
<div><FONT style="BACKGROUND-COLOR: transparent" face="Arial, Helvetica, sans-serif">yeah .... be very careful with pin 9 </FONT></div>
<div> </div>
<div>too much voltage on that pin can burn out the CM chip. I killed a CM108 this way back when I was making a homebrew fob ..</div>
<div> </div>
<div>Ken<br>
<br>
<br>
</div>
<div style="FONT-FAMILY: arial,helvetica; COLOR: black; FONT-SIZE: 10pt">-----Original Message-----<br>
From: REDBUTTON_CTRL <jrorke@cogeco.ca><br>
Cc: app_rpt-users <app_rpt-users@ohnosec.org><br>
Sent: Sun, Feb 3, 2013 11:09 pm<br>
Subject: Re: [App_rpt-users] SCOM 7330<br>
<br>
<div id=AOLMsgPart_2_eba078c4-9667-486d-9b60-3d4fe07e8120><br>
Hey good stuff! The pin 21 has the inline cap and a level scaling so it can be driven with a little higher levels. <br>
The other thing is pin 9 is direct input and some DC biases will muck thinks up. I suspect thats what happened here.<br>
<br>
Glad you got it going.<br>
<br>
Jon RQ<br>
On 2/3/2013 4:57 PM, Steve Schulze wrote:
<BLOCKQUOTE type="cite">
<div class=moz-cite-prefix>Thanks Jon.<br>
<br>
This is exactly what I had to do. <br>
<br>
I had this system running here at home on the bench with a TKR-750 connected directly to the URI and no problems. So, I made a mistake and thought pin 9 would work for the 7330 too. Apparently, I was using the AC coupled output on the Kenwood, so it worked fine. Once I switched to the AC coupled input on the URI from the 7330 the thing lit up and I was able to set the input level in Asterisk.<br>
<br>
Thanks for all of your help. It's funny how we look past the obvious sometimes.<br>
<br>
It's official. Node 27727 is now running in it's permanent location!<br>
<PRE class=moz-signature cols="72">Amateur Radio - The Original Social Media
Steve Schulze - Radio Amateur, General Class - N9UDO
Administrator, Baraboo, Wisconsin D-Star System - WB9FDZ
Administrator, Baraboo, Wisconsin AllStarLink Systems - 27616, 27727
Treasurer, Badgerland Amateur Television Society - KB9SFS
<A class=moz-txt-link-freetext href="http://yellowthunder.org/dstar.html" target=_blank>http://yellowthunder.org/dstar.html</A>
</PRE>On 2/3/2013 15:07, REDBUTTON_CTRL wrote:<br>
</div>
<BLOCKQUOTE type="cite">Hi Steve, ok I think you said you were using pin 9 on the URI? I use pins 21 and 22 on my audio connections. I have attached a diagram of the URI to 7330. This should work.<br>
Most of my stuff is wired to connect to radios using the RLC wiring but the connections to the URI are the same.<br>
This diagram is for the 7330 to URI.<br>
<br>
Jon<br>
<br>
On 2/3/2013 1:35 PM, Steve Schulze - N9UDO wrote:
<BLOCKQUOTE type="cite">
<div>I have all of this done. I can see 1vPP on the input to the uri. But when I do the radio tune rx voice I get a failed response from no audio. I have tried a different uri as well.</div>
<div><br>
</div>
<div>Thanks.</div>
<div><br>
</div>
<div><br>
</div>
<div>
<div style="COLOR: #575757; FONT-SIZE: 75%">Sent from my Verizon Wireless 4G LTE Smartphone</div>
</div>
<br>
<br>
<br>
-------- Original message --------<br>
From: REDBUTTON_CTRL <A class=moz-txt-link-rfc2396E href="mailto:jrorke@cogeco.ca"><jrorke@cogeco.ca></A> <br>
Date: 02/03/2013 10:31 AM (GMT-06:00) <br>
To: <br>
Cc: <A class=moz-txt-link-abbreviated href="mailto:app_rpt-users@ohnosec.org">app_rpt-users@ohnosec.org</A> <br>
Subject: Re: [App_rpt-users] SCOM 7330 <br>
<br>
<br>
I suggest setting audio levels on the controller first, then do the URI <br>
adjustments.<br>
<br>
Set as follows:<br>
<br>
in usbradio. conf the audio setting should be :<br>
<br>
rxdemod=speaker<br>
txprelim=no<br>
<br>
This assumes the audio on the 7330 port is de-emphasized and does not <br>
require pre emphasis to and from the node.<br>
<br>
Disconnect the URI from the 7330.<br>
<br>
1) Send a full quieting signal to the repeater with a 1k tone @ 3k <br>
deviation. Set the TX audio level on the controller URI port to 1v p-p.<br>
2) Connect an 1K audio tone @1vp-p to the RXA pin on the controller <br>
port and gound the COR in line. Adjust input level to get 3k deviation <br>
on the repeater TX.<br>
<br>
Now you have the controller levels fixed. You new need to adjust the URI <br>
to these settings.<br>
<br>
Connect the URI and node to the controller.<br>
<br>
3) Send a full quieting signal with the 1k k tone /3k deviation to the <br>
repeater and on the URI CLI console do a RADIO TUNE RXVOICE to measure <br>
the input level.<br>
(Dont worry about the RX noise adjustment - not required as you are not <br>
doing any DSP with this setup)<br>
4) Do a RADIO TUNE TXVOICE 500 and measure the repeater deviation.<br>
5) Repeat step 5 with different level until 3k deviation is reached on <br>
the repeater TX deviation.<br>
6 Do a RADIO TUNE SAVE the set the audio levels on the node.<br>
7) you are done.<br>
<br>
<br>
On 2/3/2013 11:13 AM, Steve Schulze wrote:<br>
> Thanks Dave for the tip. I'm heading back out to the site to work on <br>
> this some more. I will give the pull-ups a try. Maybe that's why it's <br>
> not streaming out.<br>
><br>
> How did you resolve the setting of the receive levels running 'radio <br>
> tune rxnoise' etc, with the URI connected in this manner?<br>
><br>
><br>
><br>
> Thanks!<br>
><br>
> Amateur Radio - The Original Social Media<br>
><br>
> Steve Schulze - Radio Amateur, General Class - N9UDO<br>
> Administrator, Baraboo, Wisconsin D-Star System - WB9FDZ<br>
> Administrator, Baraboo, Wisconsin AllStarLink Systems - 27616, 27727<br>
> Treasurer, Badgerland Amateur Television Society - KB9SFS<br>
><br>
> <A class=moz-txt-link-freetext href="http://yellowthunder.org/dstar.html" target=_blank>http://yellowthunder.org/dstar.html</A><br>
><br>
> On 2/3/2013 09:05, Dave Maciorowski wrote:<br>
>> Mornin' Steve,<br>
>><br>
>>> Anyone have a working node using an SCOM 7330 in line?<br>
>>><br>
>>> I currently am trying to get these two to work. It's about 80% right <br>
>>> now.<br>
>>><br>
>>> Audio from the node box is making it to the repeater and keying the <br>
>>> transmitter, no problem there. The problem I'm having is the audio <br>
>>> from the repeater not getting into the node box. I see the audio on <br>
>>> a scope at pin 9 (mic_in) on the URI. I also have a transition from <br>
>>> high to low on pins 7 and 8 (COR Det and CTCSS Det) when the 7330 <br>
>>> tells it to transmit.<br>
>><br>
>> We are working on this now. I just built a cable and needed to add <br>
>> a pullup resistor at the URI COR input between pins 8 and 14. If <br>
>> you're using the CTCSS input, you need one there, too. I added the <br>
>> pullup in the DB-25 shell.<br>
>><br>
>>> On the 7330, I'm using port 1 for the repeater. Port 3 is connect to <br>
>>> the URI.<br>
>>><br>
>>> Paths on 7330 as follows:<br>
>>> RX-1 to TX-1<br>
>>> RX-1 to TX-3<br>
>>> RX-3 to TX-1<br>
>>><br>
>>> In rpt.conf I have duplex=0 and linktolink=on<br>
>>><br>
>>> In USB radio I have carrierfrom=usb and ctcssfrom=usb<br>
>><br>
>> 73,<br>
>><br>
>> Dave<br>
>><br>
><br>
> _______________________________________________<br>
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