[arm-allstar] cwid for rf link

[LaRoy McCann]

Thanks for the info.

LaRoy

On Wed, Feb 14, 2018 at 5:29 PM David McGough <kb4fxc at inttek.net> wrote:

>
> Hi LaRoy,
>
> I'm not aware of any specific tone frequency or amplitude requirements for
> ID'ing ham systems, except that part 97.119(a) states: "for the purpose of
> clearly making the source of the transmissions from the station known to
> those receiving the transmissions."   ....So, this implies that the ID
> must be clearly audible.
>
> Also worth nothing that 97.119(b)(1) states that the CW speed must be no
> faster than 20WPM.
>
> In other radio services, the CW characteristics are more clearly defined.
> See part 90.425(b) for land mobile. Here, the specs are:
>
> 90.425(b)(1):  "...shall be adjusted to produce 40 percent +/-10 percent
> of the maximum permissible modulation or deviation level."
>
> 90.425(b)(3): "The frequency of the keyed tone comprising the
> identification signal shall be 1200 +/-800Hz"
>
> As for the rxnotch parameter, yes, it can be used notch a CW ID out.
>
> ...Just some thoughts.
>
> 73, David KB4FXC
>
>
> On Wed, 14 Feb 2018, "LaRoy McCann via arm-allstar" wrote:
>
> > I have lost an internet connection to one repeater location and I am
> > looking at using an rf link back to another tower.
> >
> > I know I have to have my link id just link the repeater has to id.
> > What I am wondering is, can I use a frequency in the CTCSS range for the
> > cwid freq?  This way i can filter out the frequency at the receiver.
> >
> > I can not find anything in the FCC rules that states what frequency and
> > amplitude I have to use to id with.
> >
> > I also notice the "rxnotch" parameter in rpt.conf.  I guess that was
> > designed to filter out cwid freq?
> >
> > LaRoy McCann - K5TW
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> >
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>
>