[Motorola] MOTOROLA BASE STATION POWER SUPPLIES

[Mike Clarson]

Dan: When I worked for Motorola, we had a customer that complained about the
buzzing from his Motorola Compa Station. Turns out that the ferroresonant
supply makes the noise, and there is no easy fix. Motorola only supplied
that supply in remote control bases--those that were designed to be in
unmanned locations. For base stations intended for local control, they had a
different supply that did NOT use a ferroresonant transformer. Motorola
replaced the power supply.--Mike, WV2ZOW

-----Original Message-----
From: motorola-bounces at mailman.qth.net
[mailto:motorola-bounces at mailman.qth.net] On Behalf Of K0DAN
Sent: Saturday, December 01, 2007 10:49 AM
To: motorola at mailman.qth.net
Subject: [Motorola] MOTOROLA BASE STATION POWER SUPPLIES

 Hi...

 I have a TPN1110B and a TPN1111B power supply (from MICOR COMPA I think?).

 Can someone please advise differences between the two?

 Rated voltage/current output?

 Is the output sufficiently filtered that the two supplies' outputs could be

wired in parallel?

 Thanks and 73

 Dan
K0DAN