[App_rpt-users] Using a Master II
Jon Rorke
jrorke at cogeco.ca
Fri Oct 8 18:49:24 UTC 2010
Well I can tell you that I have only used the URI on the Master II and
other radios like the GE phoenix and Deltas. All were set to have a
disc. output of 1 Volt P-P (not rms).
The 1 V p-p seemed to be just right for the URI.
I cant say what a modified fob would require. I did make one up and it
didn't work the same as the URI. So maybe the modified fobs need more
attenuation to work properly.
I have standardized on the the URI, but that is my personnel preference.
In the end, its what ever works. As My boss use to say "do whatever it
takes to make it work".. so I did.
Jon
On 10/8/2010 12:34 PM, Randy Ballard wrote:
> I have been having the same issue and the 470k resistor seems to make
> it work.
> Does anyone know what voltage limits are for the sound fob i see in
> these emails someone said 1 volt should be ok but my masterII is set
> at exactly 1 and rxnoise fails until i added the resistor i also tried
> turning it down the lowest i could get was .67 volts and it still failed.
> I am ok with using the resistor because it works but for future
> reference it would help to know if there is a magic number.
>
> Randy
> KB3HJC <http://kb3hjc.net/>
>
>
> On Thu, Oct 7, 2010 at 9:14 AM, Corey Dean N3FE <n3fe at repeater.net
> <mailto:n3fe at repeater.net>> wrote:
>
> I don’t remember what I used. I will check tonight after my Son’s
> away football game and post it when I get home.
>
> A fellow ham, KB3HJC, was having the same problem and was
> following the discussion last night. He ended up using a 470K.
>
> I gave the repeater a good workout this morning and there is no
> question it is working right.
>
> Corey N3FE
>
> *From:* Bob Brown - WØNQX [mailto:bbrown at byrg.net
> <mailto:bbrown at byrg.net>]
> *Sent:* Thursday, October 07, 2010 1:45 AM
> *To:* Corey Dean N3FE
> *Cc:* jrorke at cogeco.ca <mailto:jrorke at cogeco.ca>; app_rpt mailing
> list
>
> *Subject:* Re: [App_rpt-users] Using a Master II
>
> ok that being said
> what resistor values did you use?
>
>
> --
> Thanks in Advance
>
> Bob Brown, WØNQX
>
> Kansas City Metro Area
>
> http://sm0kenet.net <http://sm0kenet.net/>
>
> http://byrg.net <http://byrg.net/>
>
> http://kcdstar.byrg.net <http://kcdstar.byrg.net/>
>
> Quis custodiet ipsos custodes?
>
> Its not how many watts you have,
> its the SIZE of your watts that matter! -- Johnny Marshall, W0JM-SK
>
> --
>
>
>
> On Wed, Oct 6, 2010 at 22:16, Corey Dean N3FE <n3fe at repeater.net
> <mailto:n3fe at repeater.net>> wrote:
>
> We are all set. I played around with some different resistor
> values and now all is working as it should. I used a remote base
> off of one of my repeaters off low power and it dug right in the
> noise. Thanks for all of your help! It is working great now…. I
> am learning as I got and I have learned a lot of ins and outs this
> week…
>
> Thanks again!
>
> Corey N3FE
>
> *From:* app_rpt-users-bounces at qrvc.com
> <mailto: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 *RED BUTTON
> MICRO
> *Sent:* Wednesday, October 06, 2010 9:37 PM
> *Cc:* app_rpt mailing list
>
>
> *Subject:* Re: [App_rpt-users] Using a Master II
>
> 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 <mailto:n3fe at repeater.net>
> To: jrorke at cogeco.ca <mailto:jrorke at cogeco.ca>;
> app_rpt-users at qrvc.com <mailto: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>
> [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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