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EDACS Question

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loumaag

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DragLvr911 said:
Is it Normal for a Edacs System with 16 frequencies and 150 Id's to scan quiet quikckly compaired to a Motorola Type II Hybrid System
I assume you meant "quite" as opposed to "quiet" (but with radio it is best to specify).

Also assuming you are talking about a scanner. The number of TG's programmed has little to do with the scanning speed (see the one exception* mentioned below). The number of frequencies is only a factor in how fast the scanner finds the control channel on initial entry into the bank or system (DMA radios), again assuming you are scanning more than one bank or system. For example if the first frequency in the bank/system is the control channel, then the radio will lock on to it, spend the amount of time you have programmed (or the scanner is designed to do) to check for activity, then it moves on; makes no difference if it is a Motorola or EDACS. Of course if the CCh frequency is near the end of the bank/system list then it will take just a bit longer, but in today's scanners that should not be a noticeable difference.

With that explanation consider these possibilities if you notice a significant difference between systems.
  • One of the CCh's is not being picked up at all.
  • The scanner is not programmed correctly for either the EDACS or Motorola system. In other words the CCh frequency is programmed, but not the right type; e.g., EDACS Standard (wide) programmed where the CCh is EDACS Narrow.
  • The "Hold" times are programmed differently for the each system (this would depend on brand and model of scanner).
  • *One system has a lot of activity on it but for TG's that you do not have programmed and/or are ignoring, in comparison to the other which has little or no activity. An idle CCh (no channel grants) is passed through much more quickly as the scanner does not have to compare what it is hearing with your list of acceptable TG's.
When asking such questions, it is always helpful to supply the scanner model, this aids in more specific answers. :wink:
 

DragLvr911

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loumaag said:
I assume you meant "quite" as opposed to "quiet" (but with radio it is best to specify).

Also assuming you are talking about a scanner. The number of TG's programmed has little to do with the scanning speed (see the one exception* mentioned below). The number of frequencies is only a factor in how fast the scanner finds the control channel on initial entry into the bank or system (DMA radios), again assuming you are scanning more than one bank or system. For example if the first frequency in the bank/system is the control channel, then the radio will lock on to it, spend the amount of time you have programmed (or the scanner is designed to do) to check for activity, then it moves on; makes no difference if it is a Motorola or EDACS. Of course if the CCh frequency is near the end of the bank/system list then it will take just a bit longer, but in today's scanners that should not be a noticeable difference.

With that explanation consider these possibilities if you notice a significant difference between systems.
  • One of the CCh's is not being picked up at all.
  • The scanner is not programmed correctly for either the EDACS or Motorola system. In other words the CCh frequency is programmed, but not the right type; e.g., EDACS Standard (wide) programmed where the CCh is EDACS Narrow.
  • The "Hold" times are programmed differently for the each system (this would depend on brand and model of scanner).
  • *One system has a lot of activity on it but for TG's that you do not have programmed and/or are ignoring, in comparison to the other which has little or no activity. An idle CCh (no channel grants) is passed through much more quickly as the scanner does not have to compare what it is hearing with your list of acceptable TG's.
When asking such questions, it is always helpful to supply the scanner model, this aids in more specific answers. :wink:
Hmm once again i generalized Sorry .. but it does help me in learning .. i have a Uniden BC246T XD shes beautiful
 

loumaag

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DragLvr911 said:
Hmm once again i generalized Sorry .. but it does help me in learning .. i have a Uniden BC246T XD shes beautiful
In which case any of the possibilities I mentioned above could apply. Check them all; try both systems in ID Search mode and make sure you are hearing something on both (verifies that both systems are programmed correctly); see if the "System Hold Time" is equal (I typically set mine to zero).
 
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DaveNF2G

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I can think of one other possibility. If the Moto system is being scanned in CC-only mode (which is not possible with EDACS), then maybe the extra time is being spent programming the voice frequency to monitor the traffic and then removing it.
 

loumaag

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DaveNF2G said:
I can think of one other possibility. If the Moto system is being scanned in CC-only mode (which is not possible with EDACS), then maybe the extra time is being spent programming the voice frequency to monitor the traffic and then removing it.
That is a possibility, I am not sure how that is implemented, but if it was not in CCh only mode, then it has to find the frequency in the table you have entered, seems like it would take longer; in either case, the time is probably not noticeable except with timing equipment.
 

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Very good answers .. thanks all, i recive alot of strong and weak singles from my wotorola system (the bellnet zone 1 and 2 systems for ems communications) and since ive repogramed the system by hand my EDACS is working pritty good for being around 25-30 km from the source using a extandable wideband antenna. i have several antenna's here at home. 1. Watson W-889 Wideband Reciver VHF/UHF 25MHz-1900MHz, the basic 800MHz Duckie from uniden and my Shakespeare 5102 8-foot marine antenna, mounted on my deck with a 2 1/2' hight above my roofs peek << good reception about 35-40km's with light overcast and moderate wind, have recived transmissions from furture including Ham net links from the US and Alaska on a clear evening with a light breaze
 
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