Hi Jessie, What I call the Canadian 40 watt PA is pretty much a Mitrek Mobile 50 watt board in the same 110 watt chassis. There is no easy way to tell the difference from the outside unless you know the model numbers.
The Canadian PA works mucho fine as built. Most will do at or above 45 to 55 watts (depending on all things related). Set them at 30 to 40 watts and get on with the show. Otherwise they crank down a bit without trouble to drive that external TPL/Vocom Amplifier. (notice I didn't include Henry Amplifiers in the list)... The quick way to tell if you have the Canadian low power MSR is to look at the DC Power Supply. The US Market 110 watt UHF MSR-2000 Repeaters have a pretty massive power supply with minimal shielding over the transformer in what we might call an "open face" physical layout. The entire supply parts are placed open face on the chassis. The low power MSR repeater/base stations have a much smaller power supply (self contained in a box) mounted horizontal (sideways). Some of you Motorhead (Motorola) people will know this power supply as the very popular Motorola Consolette or Mobile being used as a base station 13.8v power supply* (and there are at least two versions of that supply). So the simple "look test" is about looking past the PA at the power supply. If you see the covered box power supply you "for sure" have the low power PA installed. One other thing... The high power constant duty MSR-2000 vhf PA that looks like the Micor Power Amplifier is only similar. Only a few of the parts interchange and I know the power control board section isn't one of them. cheers, skipp > "Jesse Lloyd" <[EMAIL PROTECTED]> wrote: > With the MSR PA's does the 110 Watt intermittent duty PA look > the same as the 30 Watt one? I know the 110 continuous duty > one looks similar to the Micor 110 Watt one, just black, is > a separate rack mount unit and cooling fins span the whole rack. > > Attached is a picture (not sure what the rules of the list server > are regarding pics but oh well). Could this be a 110 watt unit? > Jesse
