Okay Jay, try the circuit that I emailed you and let me know. The transistor is a 2N2222 NPN. These things can be had at radio shack cheep. or try robbing a NPN from a junk board, most any NPN will work. 73 and good luck AC0Y
--- In [email protected], "Jay" <[EMAIL PROTECTED]> wrote: > 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 > > > > > > > > > > > > > > > > Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
