Anyone know how much power's coming out of a quantar/nucleus exciter to drive their respective PA's?
--Scott
How much power to drive quantar/nucleus PA?
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MSS-Dave
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Re: How much power to drive quantar/nucleus PA?
According to the Quantar/Quantro school handbook, the exciter output on all bands should be + 13dBm MAX at the mini PL connector output. I can't confirm this for a Nucleus, they are simular but there some differences in operation.ssybert wrote:Anyone know how much power's coming out of a quantar/nucleus exciter to drive their respective PA's?
--Scott
Dave
Well...Ex /\/\SS.
Alright. I'm trying to drive the PA with an external exciter. Since I can't find a way to inject analog audio into the existing exciter, I'm going to put an external transmitter on the station and use it excusively for it's large PA. The problem I'm now running into is the exciter in the station is refusing to key the PA because it's reporting a PA LOW alarm. Anyone know how to make this thing take in 1dBm at the PA and pump out 300W regardless of what it thinks is going on? The problem is, this station is too damn smart. 
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MSS-Dave
- Posts: 770
- Joined: Mon Jun 30, 2003 6:02 pm
- What radios do you own?: Harris XL200M. XPR7550E, NX300
Okay....
You want to leave the Nucleus with the 300 watt PA intact in it's chassis and hook up a external exciter due to the audio problem...correct?
There are all sorts of digital busses running around that thing to give control of power output and report PA fails and stuff. The power control is intregrated with the exciter, the IPA and the final PA. I don't think you would have much luck breaking the exciter / PA connection and injecting your external exciter there. I think you would be better off driving the PA directly. You would have to either rig up connections to the PA to run it outside the cage or remove everything else from the cage except the power supplies and fool it into thinking everything is normal.
I may have missed a earlier thread about your audio problem. Analog? I've done 150 and 900 Nucs with analog and digital (POCSAG) audio from a 2 wire circuit using a Zetron Model 66 TX controller. The 66 uses tone remote keying from a controller to select either analog or digital PTT. Might be able to use those hook ups direct to the station, I'd have to look at the 66 book and see if this could be done.
Dave
You want to leave the Nucleus with the 300 watt PA intact in it's chassis and hook up a external exciter due to the audio problem...correct?
There are all sorts of digital busses running around that thing to give control of power output and report PA fails and stuff. The power control is intregrated with the exciter, the IPA and the final PA. I don't think you would have much luck breaking the exciter / PA connection and injecting your external exciter there. I think you would be better off driving the PA directly. You would have to either rig up connections to the PA to run it outside the cage or remove everything else from the cage except the power supplies and fool it into thinking everything is normal.
I may have missed a earlier thread about your audio problem. Analog? I've done 150 and 900 Nucs with analog and digital (POCSAG) audio from a 2 wire circuit using a Zetron Model 66 TX controller. The 66 uses tone remote keying from a controller to select either analog or digital PTT. Might be able to use those hook ups direct to the station, I'd have to look at the 66 book and see if this could be done.
Dave
Well...Ex /\/\SS.