In Reply to: Thanks Wiz posted by M on February 09, 2001 at 09:48:32:
: : : Wiz, cut and pasted in quotes for your convenience are a couple of sentences from an earlier message. (Subject: Most?) Perhaps you can further clarify
: : : "...if there is no radio affiliated to the site you are monitoring, with the TG wanted selected, the audio for that TG will not appear on that site." In this case do you literally mean site? For example, on the KC/VC (or EPSCA) SIMULCAST sites, when a radio is affiliated with any one of the simulcast sites, do all simulcast sites light up, or just the the site to which the radio is affiliated? I appreciate, and please confirm, that a FILL-IN site that does not have a radio affiliated to it will not key a channel.
: : : "This is terrible waste of resources and so is not a decision to be taken lightly." On the simulcast sites once a site has a radio affilited to it, may as well light up all the sites (using the same simulcast channel) since the channel really can't be used by another TG without the risk of interference. Is this logic correct?
: : : "I can tell you without hesitation that no non-Seattle TGs have the Seattle simulcast site requested and none of the Seattle TGs have non-Seattle sites requested." Is this really true? For example, it seems that TG 1744 and TG 22384 always light up both (and all, as best I can tell) the Seattle and the EPSCA Simulcast sites.
: : : Thanks for your help.
: : When I speak of a site, it is normally from the Smart Zone point of view. ie- a simulcast sub-system is one Smart Zone site, no matter how many remote sites (this time I am talking about the individule 2-8 sites that make up a simulcast system) it has.
: : Normally, you will not find the audio of a particular TG on a site that does not have a radio afilliated to it with that TG selected. We can force the audio of any TG to any site. This would be called a "requested" site.
: : The definition of simulcast is the simultaneous transmission of a signal from two or more sites on the same frequency. This is the negative side of simulcast. We must put a trasmitter for every frequency on every simulcast remote site. All trasmitters, at all simulcast sites, will transmit without regaurd as to wher or not the signal from a particular site is needed.
: : Some Seattle TGs routinely have one or more radios affiliated with other sites. This is due to the geographical nature of of our little spot on the earth. Thus it may seem that every time a particular Seattle TG is active, it comes up on more than one Smart Zone site. There is no guarentee if this, however. Thus my statement that if you want to be assured of receiving all conversations on a particular TG, you should monitor the Smart Zone site most likly to carry that TG. In the case of Seattle TGs, that would be the Seattle simulcast sub-system. In the practical world, you will probably hear the activity from (in this case) EPSCA, but don't be disapointed if you miss something.
: : As you can see, this is a complicated subject and is hard to describe/discuss.
: : Wiz
:
: Got it, thanks very much for the clarification. A site is a site, including a group of SmartZone sites which are also a site. [Until it comes to buying all those transmitters for each site in which case they stand alone ;-))).]
: Is there any rule of thumb, or better yet a published list of TGs where the audio is forced to more than one site?
: While I'm on the subject of lists, is there a current list of frequencies assigned to each site? I don't trust the FCC data base to accuratly reflect what is in service.
I do not intend to publish system frequencies or TG lists. The whole issue of of which TGs are allowed on which sites and which TGs have requested sites, as well as whish sites are requested, can be very dynamic. Changes can, and will, be done on the fly to taylor system response/operation to address an immeadiate situation. This can include adding or deleting requested sites, adding or deleting allowed sites, changing TG priority, etc.
Should not "A site is a site, including a group of SmartZone sites which are also a site" read "A site is a site, including a group of simulcast sites which are also a site?"
Wiz