What is the two modes on "Repeater Access"?

[dream_fly]

There are two work modes on "Repeater Access", one is "Mannual", the other one is "Auto". Is there anyone know what the differences are between the two ones? It seems that the "Mannual" has a faster access time for subsequent voice messages, why ?

Thanks in advance !

[fineshot1]

There are two work modes on "Repeater Access", one is "Mannual", the other one is "Auto". Is there anyone know what the differences are between the two ones? It seems that the "Mannual" has a faster access time for subsequent voice messages, why ?

Thanks in advance !

Your going to have to explain this better - perhaps with more detail as to "what repeater" you are talking about
and what you mean by "manual" and "auto".

[RKG]

I think you're referring to a singletone option for burst tone repeater access. Once you have defined the singletone "system," "auto" will send the programmed tone on each PTT press and "manual" will send the tone when you press a side button defined as RAC1.

Burst tones for repeater access is a bit obsolete nowadays. At one time it was used, for instance, to select one of several input receivers for a wide area system, such as was once used by the Troop E (Turnpike) of the Massachusetts State Police on its hi-band system. If the same function were required today, it would probably be accomplished by changing input PLs.

[xmo]

MDC is also an available repeater access format.

Some repeaters require a RAC burst to come on line and then stay operational until deactivated or until a certain period of inactivity. For those, manual RAC is preferred.

Other repeaters are set up to require RAC on every transmission. For those, automatic RAC is used.

[dream_fly]

Thank you both above.

I am sorry for the confusion of the title.

According to xmo opinion, when using the "mannual" mode, the SU just needs to send the access code once before several voice message transmission between two units. In other words, these consist of several transmissions from both units involved in the conversation. Used this way, the cost of manually accessing the repeater is spread out over several transmissions.

And for the "Auto" Mode, the access code needs to be sent and validated before every conversation. So the time spent on "Mannual" is shorter than "Auto".

If so, I have another question. Why does access code needs to be sent and validated every time under "Auto" mode ?

[xmo]

"Why does access code needs to be sent and validated every time under "Auto" mode ?"
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The setting in the mobile and portable radios is determined by the way the repeater is configured.

The system designer makes that choice based on repeater coverage overlap, interference issues, number of users, amount of traffic, and so on.