Hi Coy,
I have a lot of different info now on trying to get a cos signal to
my nhrc4/m2 controller. Can you give me the schematic for using the 2n2222
transistor to buffer the cas line. Any and all suggestions will be used.
Incidentally, the A- lines were not tied together, I had the TX on a 20amp
power supply and the receiver on a deep cycle battery .....so no A- were
tied together.
I will try all ideas and want to thank everyone on this list for
their suggestions. I will report back on what works for me. Thanks again.
Jay
----- Original Message -----
From: "Coy Hilton" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Thursday, February 17, 2005 11:04 PM
Subject: [Repeater-Builder] Re: M2 CAS
>
>
> If the A- are tied togeather then that's not the problem. I use the
> NHRC2 controller. The CAS doesn't like to source current. I always
> use a 2N2222 or a NPN transistor and a 10k resistor connected to the
> CAS line to buffer it and it doesn't load down the CAS line.
> I hope this helps.
> AC0Y
>
> --- In [email protected], "Jay" <[EMAIL PROTECTED]> wrote:
> > Why didnt I think of that....knowing the ground is isolated...I
> have been
> > tying the chassis together instead of the A-.. what was I
> thinking..Hmmm !
> > I will give it a try Bob... I am @ work @ firehouse right now but
> am anxious
> > to get home and check that out. Even if that doesnt cure the
> problem , it
> > makes things the way they should be, ground wise that is. Tnx
> again Jay
> >
> > ----- Original Message -----
> > From: "Bob Dengler" <[EMAIL PROTECTED]>
> > To: <[email protected]>
> > Sent: Thursday, February 17, 2005 4:00 PM
> > Subject: Re: [Repeater-Builder] M2 CAS
> >
> >
> > >
> > > At 2/17/2005 11:55 AM, you wrote:
> > >
> > > >Thanks for the info Bob,
> > > >
> > > > I may try the high side inject...sure couldnt
> hurt, it
> > > >would be much nicer to have one compact package than 2... as
> far as using
> > > >the RUS... that didnt work either... not even enough voltage to
> fire up
> > the
> > > >controller... I may well have a controller problem with the
> NHRC /M2.
> > >
> > > Seems like the ground between the external Mastr II & NHRC
> controller
> > isn't
> > > good. Make sure the A- lines of both Mastr IIs are tied
> together (not
> > just
> > > the chassis, which is DC isolated) before giving up on the
> separate Mastr
> > > II RX.
> > >
> > > Bob NO6B
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > > Yahoo! Groups Links
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
>
>
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
>
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