[FedCom] Re: Unknown Frequencies (J Doe) - Is that your real name?

[tvsjr]

> Thanks for that explanation. The info I had been given about the preamble
> opening the repeater was from quite a few years ago, so I may have mis-
> filed
> it in the memory cells...

You just twisted it around a bit. It's not required for a repeater to go
hot, but it can be used as access control (the repeater will go hot for a
split-second, see an invalid ID, and drop).

> And that was what I meant to say - that there is no CTCSS transmitted
> during
> the digital data transmission. But I do hear a valid CTCSS tone occur
> during
> the brief key-up prior to digital voice, so I'm guessing that one could
> still select repeater sites by CTCSS tone when used in conjunction with
> digital encryption. Or would that even be nessesary? Can the Quantar
> repeater be configure to open only with the correct CTCSS for analog or a
> valid Securenet data stream for digital?

Correct. Since that ID is in an analog mode, and the Quant is presumably
configured to pass anything analog with a certain PL and any Securenet
traffic, if you want the ID to get through the repeater (so that other
units/dispatch/etc. can hear it), the PL is required.

Yes, a Quantar can be (and is typically, in Securenet applications)
configured to pass analog traffic with a given PL, along with the digital
mode/modes. Adding ASTRO simply adds another layer of complexity...
repeaters can be configured in "mixed mode" where analog and digital traffic
is passed, both meeting certain criteria (PL/DPL, MDC ID, etc. for analog...
NAC/TG/encryption state/etc. for ASTRO).

The Quant is an extremely versatile little box. It should be, for somewhere
in the neighborhood of $15K.