Hi Tim, Stripped the F3K down, both fans working as designed. With the case off the temp only reaches around 51c but as soon as I put the case back on it goes back up to 60c+ ...
I've checked for dust build up etc and have blown out the cooling area under the main circuit board, all seems clear and plenty of air flow. I've raised the F3K up so that it is further from the ATU below it to see if some extra airflow around it will help at all as I noticed the bottom of the F3K does get rather warm when in use. Running at 5w what would be a normal temp range? Mike. On 05/05/13 20:33, Tim Ellison wrote: > Yes, it will operate with the cover off. Both fans run constantly and should > spin up to full speed after transmitting for a few minutes. If you have a > dummy load and tx @ 100w it will spin up in about a minute or two. > > -Tim > --- > Tim Ellison, W4TME > Product Management > FlexRadio Systems > (Sent from my iPad) > > On May 5, 2013, at 1:59 PM, Mike <mi...@m0aws.co.uk> wrote: > >> Hi Tim, >> >> Thanks for the reply. >> Will the unit operate if I remove the cover to see if the fans are >> working or not? >> Or is there a safety switch that disables TX with the case removed? >> >> Is there a test mode I can put the radio into to make the fans spin or >> do I just need to get it hot again? >> >> Mike. >> M0AWS >> http://www.m0aws.co.uk >> >> On 05/05/13 18:00, flexradio-requ...@flex-radio.biz wrote: >>> Message: 9 >>> Date: Sat, 04 May 2013 19:32:22 -0400 >>> From: Tim Ellison <t.m.ellison...@gmail.com> >>> To: flexradio@flex-radio.biz >>> Subject: Re: [Flexradio] F3K Temperature when running QRP? >>> Message-ID: <51859a86.5040...@gmail.com> >>> Content-Type: text/plain; charset=ISO-8859-1; format=flowed >>> >>> That seems a little high. I wonder if one of the fans is not rotating. >>> >>> Tim Ellison >>> On 5/4/2013 7:10 PM, Mike wrote: >>>>> Hi All, >>>>> >>>>> Quick question about Flex3000 temperature when running JT65 on the HF >>>>> bands. >>>>> >>>>> I've been playing with JT65 on 40m and 20m using just 5w of power and >>>>> the ALC at -0.1dB, the signal is very clean and I am getting great >>>>> results, my only concern is the temperature, it's getting up to 63c >>>>> which seems very high for such a low output level? >>>>> I have the fans set to come on at 35c in an attempt to try and keep the >>>>> temperature down. >>>>> >>>>> Does anyone else see these kinds of temperatures running QRP? >>>>> Is this normal? >>>>> Do I need to be concerned? >>>>> >>>>> Mike. >>>>> M0AWS >>>>> http://www.m0aws.co.uk _______________________________________________ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz 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/
