[App_rpt-users] RTCM and voting setup

Mon May 12 06:25:57 UTC 2014

Thanks Chuck, finally got most of my issues worked out using the V/S Hi
output and setting the discrim level on the RTCM -20db
This fixed my TT's and allowed the tune up to work as the directions stated
it should -

I do have the CTCSS decode going to the input for CTCSS on the RTCM -
however what happens is the system gets keyed up
with no PL required - even though no signal is sent on that connection.
Measured with analog V Meter, and shows same 0V ~ as
it does with no signal, same as it does with a signal that has no PL. If
the signal has the proper 123.0 hz PL I get a +4V~

The settings on the RTCM:
12 - External CTCSS (0=Ignore, 1=Non-Inverted, 2=Inverted) (1)
13 - COR Type (0=Normal, 1=IGNORE COR, 2=No Receiver) (1)

If I set 12 to 2 = inverted it will stay keyed and unkey when it receives a
signal from the radio.
Set to 1 and it works but does not pay attention to the PL
set 13 to 1 to ignore COR and thus should only operate from CTCSS, yet it
still seems to respond to COR for some reason.

Seems very strange - Not sure what to make of this, or do I even need a PL
to keep the repeater quiet? While noise should not
trigger the system, anyone without a PL would... If you have any other
ideas, that would be great, or if anyone else does...
Thanks again for the help!

PS the audio seems so much cleaner :)
Seems like going from the discriminator helps...
Not to say it was bad before...

Mark KC7DMF

--- Original Message ----
--------------------------------------------------------------------

On my 3 repeaters I am getting receive audio directly from the output pin
of the detector IC chip and I have no problems, all setup worked exactly as
described in the documentation.  All TT from all brands of radio all work
perfectly.
A friend has a repeater that is getting output from a connector on the back
of the radio that says discriminator audio out, but looking at the
schematic I can see that there are lots of circuits and filters in the line
between the detector IC and that output.  For his system none of the setup
steps worked correctly and we have to just get it as close as we could
manually.  For that system TT's only work from a very few radios and not at
all from some and intermittently for others.

I would suspect that you are not getting direct enough unfiltered audio, or
you did not follow the setup procedure exactly.

There is no CTCSS decode when using the RTCM's.  The radio must have a
hardware CTCSS that sends a logic level CTCSS detected signal to the RTCM.

Or just use carrier squelch that is in the RTCM firmware and works only if
you get good unfiltered discriminator audio.

I highly recommend getting rid of these lines
thresholds = 255,110=5
linger=6
thresholds = 255,110=5
linger=10

Everything works better without them IMHO.

It is a good idea to start with a big value for buflen to start with and
only trim it down after everything else is working well.

If it is all working but you do not like the squelch close action, then I
have alternate firmware to fix that issue.

Chuck,  WB9UUS, CCIE2285

"Got Root?"

How many software engineers does it take to change a light bulb?
*None. It's a hardware problem.*

Unix is user friendly. It's just very particular about who it's friends are.
WINDOWS: Will Install Needless Data On Whole System
MICROSOFT: Most Intelligent Customers Realize Our Software Only Fools
Teenagers.

A ntennas
P oorly
P laced
L acks
E ngineering

The best way to accelerate a computer running Windows is at 9.81 m/s².

*"I get paid to support Windows, I use Linux to get work done."*

On Fri, May 9, 2014 at 1:17 AM, Chuck Henderson <
rpt2 at chuck.midlandsnetworking.com> wrote:

> On my 3 repeaters I am getting receive audio directly from the output pin
> of the detector IC chip and I have no problems, all setup worked exactly as
> described in the documentation.  All TT from all brands of radio all work
> perfectly.
> A friend has a repeater that is getting output from a connector on the
> back of the radio that says discriminator audio out, but looking at the
> schematic I can see that there are lots of circuits and filters in the line
> between the detector IC and that output.  For his system none of the setup
> steps worked correctly and we have to just get it as close as we could
> manually.  For that system TT's only work from a very few radios and not at
> all from some and intermittently for others.
>
> I would suspect that you are not getting direct enough unfiltered audio,
> or you did not follow the setup procedure exactly.
>
> There is no CTCSS decode when using the RTCM's.  The radio must have a
> hardware CTCSS that sends a logic level CTCSS detected signal to the RTCM.
>
> Or just use carrier squelch that is in the RTCM firmware and works only if
> you get good unfiltered discriminator audio.
>
> I highly recommend getting rid of these lines
> thresholds = 255,110=5
> linger=6
> thresholds = 255,110=5
> linger=10
>
> Everything works better without them IMHO.
>
> It is a good idea to start with a big value for buflen to start with and
> only trim it down after everything else is working well.
>
> If it is all working but you do not like the squelch close action, then I
> have alternate firmware to fix that issue.
>
> Chuck,  WB9UUS, CCIE2285
>
>
>
> On Thu, May 8, 2014 at 11:00 PM, Mark Johnston <markjohnston73 at gmail.com>wrote:
>
>> No idea how it got fixed other then multiple reboots later - no PL being
>> heard now that is great!
>> two other issues I have with the voter modules (RTCM) can those devices
>> or can the allstar/asterisk do
>> CTCSS on rx, I see it can do it on TX but I want it to be my tone decoder
>> - Just seems odd if they cannot
>> since it would for a USB device why not here?
>>
>> Two, for some reason one radio I have Wouxun the DTMF digits do not work
>> except the 9 when watching the
>> asterisk -r .... except sometimes if I hold each digit for 2-3 seconds
>> then it does.  Is there a setting I can adjust?
>> As far as I can tell by the config and listening to my signal levels
>> sound about right/proper deviation etc.
>> The Baofang works 100% of the time with the briefest of key presses even
>> if I tweak the rx a bit. When I monitor
>> the output from the wouxun through the node the tones sound distorted -
>> from the baofang they sound clean.
>> Maybe it's the radio?
>>
>> Thanks,
>>
>>
>> Mark
>>
>> KC7DMF
>>
>>
>> "Got Root?"
>>
>> How many software engineers does it take to change a light bulb?
>> *None. It's a hardware problem.*
>>
>>
>> Unix is user friendly. It's just very particular about who it's friends
>> are.
>> WINDOWS: Will Install Needless Data On Whole System
>> MICROSOFT: Most Intelligent Customers Realize Our Software Only Fools
>> Teenagers.
>>
>>
>> A ntennas
>> P oorly
>> P laced
>> L acks
>> E ngineering
>>
>> The best way to accelerate a computer running Windows is at 9.81 m/s².
>>
>> *"I get paid to support Windows, I use Linux to get work done."*
>>
>>
>>
>> On Thu, May 8, 2014 at 12:07 PM, Mark Johnston <markjohnston73 at gmail.com>wrote:
>>
>>> Hello everyone,
>>>
>>> Trying to setup 2 RTCM's for voting - starting off with 1 for the master
>>> timing source - no Radio.
>>> and one currently at the same site for testing purposes, both have GPS
>>> configured & working.
>>>
>>> The radio is a GE Mastr II base - I located a point where the CTCSS
>>> decoder gets the discriminator audio
>>> and removed the board for CTCSS decode. Plugged in the audio to the RTCM
>>> there.
>>>
>>> I do hear the audio, but am having multiple issues, first audio sounds
>>> OK locally (repeat) but the biggest
>>> issue there is the PL is loud and plfilter = y in the voter.conf appears
>>> to do nothing for that.
>>>
>>> Second issue I am not seeing a way to decode PL either in the RTCM or in
>>> asterisk from a voter.
>>> I know with usbradio/simplusb it has the option but from what I know
>>> those are not going to do anything here?
>>>
>>> also during the RTCM setup the SQ adjustment appears to calibrate go
>>> from flashing to solid on the LD3 indicator.
>>> but when adjusting the SQ pot 10 , 50 , or 150 turns does nothing to
>>> extinguish the LD3 as it should, unless I am
>>> misunderstanding the directions - does not make sense. Anyone know if
>>> there is something I could be missing?
>>>
>>> below are the rpt.conf (partial) and voter.conf files
>>>
>>> rpt.conf ----
>>>
>>> [28344]                                 ; Change this to your assigned
>>> node number
>>> rxchannel=voter/28344
>>> duplex=2
>>> ;erxgain=-3
>>> ;etxgain=3
>>> ;controlstates=controlstates
>>> scheduler=schedule28344
>>> morse=morse28344
>>> macro=macro28344
>>> functions=functions28344
>>> phone_functions=functions28344
>>> link_functions=functions28344
>>> telemetry=telemetry
>>> wait_times=wait-times
>>> context =  radio
>>> callerid = "Repeater" <0000000000>
>>> idrecording = |iKC7DMF
>>> accountcode=RADIO
>>> hangtime=100
>>> althangtime=100
>>> totime=530000
>>> idtime=540000
>>> politeid=3000
>>> idtalkover=|iKC7DMF
>>> unlinkedct=ct2
>>> ;discpgm=yourdisconnectprogram
>>> ;lnkactenable=0
>>> ;lnkacttime=1800
>>> ;lnkactmacro=*52
>>> ;lnkacttimerwarn=30seconds
>>> ;remote_inact_timeout=1800
>>> ;remote_timeout=3600
>>> nounkeyct=0
>>> ;holdofftelem=0
>>> beaconing=0
>>> linktolink=yes
>>> telemdefault=2
>>> propagate_dtmf = yes
>>> propagate_phonedtmf = yes
>>>
>>> ;
>>> ; *** Status Reporting ***
>>>
>>> ######
>>>
>>>
>>> /etc/asterisk/voter.conf
>>>
>>> ;[general]
>>>
>>> port = 667
>>> buflen = 500
>>> password = pwblah
>>>
>>> [28344]
>>>
>>> 1306 = pw1blah,master
>>> plfilter = y
>>> thresholds = 255,110=5
>>> linger=6
>>> 1300 = pw2blah,transmit
>>> plfilter = y
>>> thresholds = 255,110=5
>>> linger=10
>>>
>>> #####
>>>
>>>
>>> Thanks,
>>>
>>>
>>>  Mark KC7DMF
>>>
>>
>>
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