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emsgeorge
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« Reply #2 on: August 03, 2009, 05:43:49 pm » |
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Hi,
Heres some of the bits you need:
1) Group call on GP380:
- Could you give me a step by step guide to enable "Radio A" to send a Selective call to "al Radios" on that channel. Basically Ideally, I would like to be able to select a group (please let me know how to create that group) and send a call to all, to bring there attention to a following message.
Simple way would be to set up a selcall receive as an 'individual call' - so a tone and an LED indication come up.
On the radio you want to broadcast from - set up a selcall on one button on the side lets say. set it up as 33001 to transmit.
On the receive radios, set up a decoder definition, with 33(a1A2A3) in the selcall bit, then set it up as 'individual alert'
Dont forget to enable it in the per personality in s5 decode, otherside you wont decode it !.
2) Emergency alert:
How could I get the Emergency Alert (orange button) to only let a group of peoples (security group radios) to respond, and get the others to be unable to talk while the emergency is happening?
The purpose I am trying to achieve, is to have only the people responsible for an Emergency response to communicate or deal with that emergency without having others to interfere with that Emergency.
Unable to talk - hmmmmm. Dont know about that one. The rest though : Assign a selcall to the orange button, say 99001. Then on all the receive radios, set a decoder defintion to 99(a1a2a3), and the type to 'incoming emergency'. When the radio gets 99 and 3 digits incoming, it will start an emergency display (beeping, led etc) and will look for the rest of the number in the contact list - so name your radios in the contact list, and it will display the radios name, as well as the tones etc.
3) Does the Encryption module for GP380 enables a channel to be fully secured so that no one can actually listen or spy on that channel, leaving the Security staff to work securely. Could there be a way to have the Emergency button when press to switch automatically onto an Emergency "hidden" channel, so that only security group can work on it? This relates maybe to my question (2)
Yes, you can get several encryption modules for the gp380. Simple voice inversion is the cheapest - but can be unscrambled by a computer, and doesnt sound that different to normal voice. Its simple to decrypt. So much so, that people have purchased cheap 446 radios, and decoded the encrypted signals through it. Rolling code is better - but encryption has its downsides. One being that repeaters sometimes have to be tweaked to work correctly with it. If you go remotely out of range, the codes get jumbled up, and you loose all comms - whereas normal analogue you could hear people.
You could set up the emergency button to change to a specific channel - its in emergency tab, and its called 'revert channel'. If you want nobody to select the emergency channel normally, then on the channel itself, go to the misc tab, and you will see a tick box for 'inhibit channel selection'. There you go.
I sincerly hope you can help me with this. Let me know if you would like me to send you my codeplug (if that makes it easier).
Sending your codeplugs (for all the radios you want to be done) is really the only quick way of doing it. However, that teaches you nothing, which is the whole point of this forum ! - and thats why I have put some info here to get you started.
George
Thanks in advance,
Fabrice
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