On 3/14/2010 11:41 PM, Paul Plack wrote: > How do these transmitters play at crowded sites? I've heard some accounts of > broadband noise problems for other tenants when high-power Glenayre equipment > went in... > > 73, > Paul, AE4KR
Having worked on them for over 10 years now, I can say they are very clean-when installed properly-just like most any other brand. Frankly, in the paging industry, the Nucleus has a much worse rep then the Glenayres, especially the 8500/8600 series-probably just about the best paging transmitter made. I can say that the problems you have heard can be attributed to a few causes: -Poor installation, including improperly installed hardline connectors, or not properly weatherproofed, which once water gets in, it can cause IM. -IM generated from sources outside the transmitter -On occasion, the DSP exciters could go 'squirrely' and go into a failure mode that makes a lot of noise. It shouldn't go on long, because it will also affect paging in the area, as the digital waveform gets distorted too. -Digital modulation is always going to be somewhat dirtier then analog, and requires proper 'clean-up' so to speak. The Glenayre 900 MHz transmitters all came with a circulator, or at least a BP cavity on the lower power stations. Not all Nucs have one. > ----- Original Message ----- > From: Joe > To: [email protected] > Sent: Sunday, March 14, 2010 8:59 PM > Subject: Re: [Repeater-Builder] Re: Sorta OT: Looking for a couple of items > > > I maintained a 900MHz Glenarye digital > simulcast system here in Connecticut years ago and played with the > analog mode, it worked nice... > >
