On Mon, May 16, 2011 at 4:14 PM, Graham Haddock <[email protected]>wrote:
> Just one additional comment... > > I cringe when I hear talk about using wallwarts to power the FLEX-1500. > > They will work great in receive. > > BUT the transmitter will work better (stay more linear) with a power supply > that > does not move up and down in voltage as the load goes up and down. Most > wallwarts have high internal resistance as part of their consumer > protection. > Even the little switchers? The old transformer types were awful. I haven't tried to measure one of the switchers under load. I thought that they would just drop out under overload rather than sag. > The FLEX-1500, or any transmitter, for that matter, will be much happier in > transmit > with a regulated power supply. At least with more regulation than most > wallwarts provide. > I am probably going to end up going with a LiFePO4 pack 'cause then I can operate where there is or is not power. -- Brian Lloyd, WB6RQN/J79BPL 3191 Western Dr. Cameron Park, CA 95682 [email protected] +1.767.617.1365 (Dominica) +1.931.492.6776 (USA) (+1.931.4.WB6RQN) _______________________________________________ FlexRadio Systems Mailing List [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/
