Thank you for the suggestion Walter. I never imagined it would run off a PP3! I think Matt measured the quiescent power as 30ish mA. IIRC it's the speaker amp that uses the most current, but only when the volume is wound up.
- David On 10/09/15 12:22, Walter Holmes wrote: > If the case could be removed faster, then a place for a 9v battery on the > inside would be great. > > I have been using mine for many weeks on a 9v battery and I don't have to > worry about power from a potentially noisy source like my vehicle's power > line. > > The SM1000 draws such little power, if I have to change out the battery > every 3 to 6 months, no big deal at all. > > I guess I could use rechargeable batteries and change them more frequently, > but batteries are cheap, and easy to find anywhere. > > Walter/K5WH > > -----Original Message----- > From: David Rowe [mailto:[email protected]] > Sent: Wednesday, September 09, 2015 6:54 PM > To: [email protected]; Matthew Cook <[email protected]> > Subject: [Freetel-codec2] SM1000 phantom power > > Hello list, > > A few people have modified their SM1000 to draw power from their radio via > the RJ45 connector. > > Rick and I have considered this a few times but to date have decided NOT to > provide a power on the patch panel to date - as we are concerned about (i) > possible damage to radios and (ii) variable operation of the SM1000. The > type of power (e.g 8V, 12V, current) available varies widely. > > The flip side is it simplifies set up of the SM1000 - just one cable, and > the RJ45 locks positively compared to the DC connector. > > Would be interested in your thoughts! Rick and I are currently working on > Rev F so now is the time to speak up. > > Thanks, > > David > > On 10/09/15 07:16, David Rowe wrote: >> Hi Alfred, >> >> codec2-dev is likely to change at any time. I need that ability for >> my development. However the stable releases and FreeDV API version >> number are there to control exactly the situation you are concerned with. >> >> Cheers, >> >> David >> >> On 09/09/15 16:45, wully wrote: >>> Hi David >>> >>> Very nice! But please don't change the interface to often, because we >>> are just at the point to test 700B in the wide field (current conds >>> are very bad, so this will take time). It is very important, to have >>> a stable environment to be sure about the effects on the air. When >>> experimenting and not knowing wether the other station has the same >>> mode, we will not come to positive conclusions. >>> >>> Thank you for all your efforts! >>> 73, hb9epu, Alfred >>> >>> On 08.09.2015 22:53, David Rowe wrote: >>>> James Ahlstrom has submitted a fine patch to enable FreeDV 700 to >>>> run at a sample rate of 8000 Hz rather than the rather obscure 7500 >>>> Hz. I thought it would be useful to document the testing here: >>>> >>>> http://www.rowetel.com/blog/?p=4561 >>>> >>>> This means some changes to the FreeDV GUI software (freedv-dev won't >>>> build atm), which I'll clean up and test over the next week or so. >>>> >>>> - David >>>> >>>> -------------------------------------------------------------------- >>>> ---------- _______________________________________________ >>>> Freetel-codec2 mailing list >>>> [email protected] >>>> https://lists.sourceforge.net/lists/listinfo/freetel-codec2 >>> >>> >>> --------------------------------------------------------------------- >>> --------- Monitor Your Dynamic Infrastructure at Any Scale With >>> Datadog! >>> Get real-time metrics from all of your servers, apps and tools in one >>> place. >>> SourceForge users - Click here to start your Free Trial of Datadog now! >>> http://pubads.g.doubleclick.net/gampad/clk?id=241902991&iu=/4140 >>> _______________________________________________ >>> Freetel-codec2 mailing list >>> [email protected] >>> https://lists.sourceforge.net/lists/listinfo/freetel-codec2 >>> >> >> ---------------------------------------------------------------------- >> -------- Monitor Your Dynamic Infrastructure at Any Scale With >> Datadog! >> Get real-time metrics from all of your servers, apps and tools in one >> place. >> SourceForge users - Click here to start your Free Trial of Datadog now! >> http://pubads.g.doubleclick.net/gampad/clk?id=241902991&iu=/4140 >> _______________________________________________ >> Freetel-codec2 mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/freetel-codec2 >> > > ---------------------------------------------------------------------------- > -- > Monitor Your Dynamic Infrastructure at Any Scale With Datadog! > Get real-time metrics from all of your servers, apps and tools in one place. > SourceForge users - Click here to start your Free Trial of Datadog now! > http://pubads.g.doubleclick.net/gampad/clk?id=241902991&iu=/4140 > _______________________________________________ > Freetel-codec2 mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/freetel-codec2 > > > ------------------------------------------------------------------------------ > Monitor Your Dynamic Infrastructure at Any Scale With Datadog! > Get real-time metrics from all of your servers, apps and tools > in one place. > SourceForge users - Click here to start your Free Trial of Datadog now! > http://pubads.g.doubleclick.net/gampad/clk?id=241902991&iu=/4140 > _______________________________________________ > Freetel-codec2 mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/freetel-codec2 > ------------------------------------------------------------------------------ _______________________________________________ Freetel-codec2 mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/freetel-codec2
