I am trying to determine if rail operatons ops 5 is the station manager channel or something else. I read that it may be a system announcement channel
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I am new to trunking and I'm trying to find the CC for WMATA. 496.43750 shows a signal (health 100 at my QTH in Bethesda) but I'm not hearing anything, just a bunch of 'joining.' Am I on the wrong CC?I am trying to determine if rail operatons ops 5 is the station manager channel or something else. I read that it may be a system announcement channel
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The database should have the control channels. What scanner are you using?
I get that but what's the control channel? The one's listed in RR don't seem to work for me.They are not on the proposed 700 mhz system yet
I'm sure you know this, but SmartNet systems can "roll" control channels between 4 preassigned channels. The RRDB shows 490.7875 as the primary cch, and 490.8625, 496.4375 and 496.5375 as alternates. The channel that you specified is an alternate cch, but you also said it shows "Joins" which generally means it is the active cch.I get that but what's the control channel? The one's listed in RR don't seem to work for me.
Perhaps I was unclear. I can hear the control channel noise on 490.7875 but all I get is a flurry a calls and logouts at a crazy fast pace. I don't hear anything. See the screenshot. I listen to all the other local channels around here, but this one eludes me.I'm sure you know this, but SmartNet systems can "roll" control channels between 4 preassigned channels. The RRDB shows 490.7875 as the primary cch, and 490.8625, 496.4375 and 496.5375 as alternates. The channel that you specified is an alternate cch, but you also said it shows "Joins" which generally means it is the active cch.
I don't know the other systems that work for you, but they are most likely using the standard band plan. WMATA uses a custom band plan according to the RRDB, therefore Unitrunker needs to have its default band plan settings adjusted. Some older scanners also have this issue. Do some research about band plans + Unitrunker on this site - there are threads about it.I'm not sure why this would be necessary. All the other systems work, but I will look into it.
Looks like I have some reading to do.I don't know the other systems that work for you, but they are most likely using the standard band plan. WMATA uses a custom band plan according to the RRDB, therefore Unitrunker needs to have its default band plan settings adjusted. Some older scanners also have this issue. Do some research about band plans + Unitrunker on this site - there are threads about it.
I think this will help a lot. I appreciate the time you spent on this.I was in the Bowie area today, so I fired up Unitrunker 2 to see what's up with WMATA. In order to resolve system freqs from the channel number - and monitor voice traffic - you must enter a custom band plan. Doing some research on the Unitrunker website, all trunking systems in the UHF T band (and others) have a custom band plan. I didn't know that.
I'm including a link for the band plan research, and attaching a screen shot of the system decoding. Hope this helps.
Unitrunker 2.1 - bands
www.unitrunker.com
View attachment 74563