[App_rpt-users] Using a Master II

Thu Oct 7 01:36:45 UTC 2010

  Ok what level do you have with a full quieting signal 1k tone with 3 k 
deviation?
there should be no problem if there is ~ 1 v p-p.

You can try setting thy rx boost off as Jim suggested if its too high.

The out put can be adjusted on a pot in the discriminator box on the IF 
board too.

Jon

On 10/6/2010 9:13 PM, Jim Duuuude wrote:
> try setting the rxboost=0  it looks like your signal is very loud and 
> is overloading
> the A/D.
>
> JIM
>
>
> ------------------------------------------------------------------------
> From: n3fe at repeater.net
> To: jrorke at cogeco.ca; app_rpt-users at qrvc.com
> Date: Wed, 6 Oct 2010 20:54:11 -0400
> Subject: Re: [App_rpt-users] Using a Master II
>
> Jon,
>
> I just got done checking things out.  The same audio that is located 
> on Volume Squelch hi is located on the backplane.  I just traced the 
> circuit back and double checked it with my VOM.  Here is a link to the 
> file I used many years ago. 
> http://www.scomcontrollers.com/downloads/7kgem2bs.pdf
>
> I fail every time I run the RX squelch detect from radio-tune-menu.  
> Here are the results for that…
>
> tune rxnoise maxtries=12, target=27000, tolerance=2750
>
> tries=0, setting=2, meas=32767
>
> tries=1, setting=2, meas=32767
>
> tries=2, setting=2, meas=32767
>
> tries=3, setting=2, meas=32767
>
> tries=4, setting=1, meas=32767
>
> tries=5, setting=1, meas=32767
>
> tries=6, setting=1, meas=32767
>
> tries=7, setting=1, meas=32767
>
> tries=8, setting=1, meas=32767
>
> tries=9, setting=1, meas=32767
>
> tries=10, setting=1, meas=32767
>
> tries=11, setting=1, meas=32767
>
> DONE tries=12, setting=63, meas=32767, sqnoise=20936
>
> ERROR: RX INPUT ADJUST FAILED.
>
> If I set the squelch setting low manually I can hear the squelch tail 
> everytime I unkey.  If I have someone with a noisy but legible signal 
> it just won’t hold.  I can go to cas and it will work just fine.  
> Could it be the PL detect that is holding it from digging?
>
> Any other suggestions?
>
> Corey  N3FE
>
> *From:* app_rpt-users-bounces at qrvc.com 
> [mailto:app_rpt-users-bounces at qrvc.com] *On Behalf Of *Jon Rorke
> *Sent:* Wednesday, October 06, 2010 9:53 AM
> *To:* APP_RPT_Users
> *Subject:* Re: [App_rpt-users] Using a Master II
>
> I think the audio out lines on the back plane are de-emphasized or 
> flat to 3k then it rolls off. Either way In this case that is not what 
> you want. If you were connecting to a hardware controller and using 
> the cas/RX mute then it works just fine.
> In the case of using DSP squelch and DSP L decode by the fob/ URI it 
> must be connected to the Discriminator.  You could also set your node 
> to speaker out instead of flat and use the USB for the cas 
> connection.  That should work too.
>
> I personally like using the DSP Squelch and DSP tone as it is very 
> quick - no squelch busts! That is... if you have the RX squelch set 
> right. ;-)
>
> Jon
>
> On 10/6/2010 9:19 AM, Corey Dean N3FE wrote:
>
> This is making some sense now.  I did pull off the back plane but I 
> never traced it back to see where exactly it was coming from.  Many 
> moons ago I followed the Scom 7k to Master II hookup info.  I have 
> always just used that same spot on all other controllers in the past 
> without an issue and excellent audio.  I will give that a try 
> tonight.  I know what pin you are referring to.  It would be the same 
> pin that you would use in a mobile conversion and it is also available 
> where the stock PL board would plug in.
>
> Thanks and I will give it a try this evening!
>
> Corey
>
> *From:* app_rpt-users-bounces at qrvc.com 
> <mailto:app_rpt-users-bounces at qrvc.com> 
> [mailto:app_rpt-users-bounces at qrvc.com] *On Behalf Of *Jon Rorke
> *Sent:* Wednesday, October 06, 2010 8:35 AM
> *To:* APP_RPT_Users
> *Subject:* Re: [App_rpt-users] Using a Master II
>
> I have set up a Master II repeater station in full duplex mode using a 
> URI for dsp squelch and dsp pl decode and it works just fine. The main 
> thing is to connect it to the volume/squelch hi (raw discriminator) or 
> you will have problems. The master II should be able to give you 1V 
> p-p output with 1k tone @ 3k dev on the volumw/squelch hi which is not 
> available on the back plane. You have to pull it off one of the 
> connectors on the drawer. Have to check my notes on what pin.
>
> Any way I have a couple of units working in this manner with no problems.
>
> Jon VA3RQ
>
> On 10/6/2010 7:46 AM, Corey Dean N3FE wrote:
>
> So I have been using a GE Master II repeater (actual repeater, not a 
> converted mobile) for the allstar node in full duplex repeater mode.  
> I noticed it just doesn’t dig too well when using the fob to decode 
> the PL.  I have a maxtrac on another fob and that will dig into the 
> noise great.  As a test I hooked up a ts32 and ran the output of that 
> in the CAS/COR on the fob and it worked great!  I want to try to get 
> the built in decoder working correctly though.  Another friend of mine 
> is also running a GE Master II and he is having the same problem.  
> When we run the rxnoise level from either the radio-tune-menu or using 
> the radio tune command from asterisk it always fails.  Anyone have any 
> suggestions on a way to resolve this?   I have another use for my 
> hardware pl decoder so I would like to get the USB Frob working 
> correctly!!!!
>
> Corey  N3FE
>
>   
>   
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