Thanks Joe.

We did most of those and then found the problem.  The T-connector center pin 
had broken off when we apparently hooked up some test equipment and did not 
notice it.

I still have one question though.

Is it normal to have 100 watts coming out of radio and only 70 watts coming out 
of duplexer?

Wacom 6 can type duplexer.


That seems to be quite a loss. Again I appreciate all the help.

73
John, W3ML



--- In [email protected], Joe <k1ike_m...@...> wrote:
>
>   What make and model is the duplexer?   I know of one instance that the 
> loop inside the duplexer can come disconnected due to a bad solder 
> joint, but can't remember what one it was.  A search on this list should 
> find it, as it was discussed recently.
> 
> The first thing would be to check all connections for tightness.  Do not 
> over-tighten the connections!  Just make sure that they are snug.  If 
> your knuckles are turning white, your tightening too much.   N 
> connectors need to be snug,  UHF connectors need to be a little tighter, 
> but not cranked down tight, but not until they break.
> 
> What you can do is take the connecting cables off the transmit side cans 
> and test the first one for power out.  Then connect the next can in 
> series and see if there is output from that can.  This process should 
> isolate the bad can(s).  Disconnect the receiver while doing this just 
> to be safe.  MARK all the cables as to where they came from.  Do not mix 
> them up.  It may be a bad cable, so if you find a problem make sure that 
> it is not the interconnecting cable.  If all the cans and cables test 
> OK, their may be a problem on the receive side of the duplexer.  Keep it 
> simple, don't fool with the cans unless you prove that one is bad.
> 
> This process is to eliminate the obvious before you go tinkering with 
> the duplexer.  Check the tightness of connections first, cables second, 
> and lastly the cans.  The process above will help you isolate the bad 
> can so you hopefully only have to tinker with one can.
> 
> The real fix would involve some test equipment.  What do you have 
> available?  Service monitor, tracking generator?
> 
> Others will probably have some good suggestions, these ideas are just 
> off the top of my head.
> 
> On 9/6/2010 9:37 AM, W3ML wrote:
> > Hi,
> >
> > First, let me say that we are still new to the repeater business and 
> > learning as we go. This the first time in 30 ham years that I have been 
> > involved with a VHF repeater system.
> >
> >   Our repeater was working okay at 80 watts out of GE Mastr II and 60 watts 
> > out of Duplexer. When I turn the power up to 100 out of radio and 80 out of 
> > duplexer it seemed to be working okay.
> >
> > But, now a few hours later there is no power coming out of duplexer at all. 
> > Radio still shows power coming out.
> >
> > Nothing was touch on the duplexer.  Any ideas?
> >
> > 73
> > John, W3ML
> >
>


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