Hello all, Please note that all current production radios use a spacer between the fan and the inside front panel. This is made from the same filter spacer that is used on the front panel. This reduces fan noise power by 50% (3dB) as measured 2 inches from the front panel.
73, Gerald Gerald Youngblood, K5SDR FlexRadio Systems Ph: 512-535-5266 Fax: 512-233-5143 Email: [EMAIL PROTECTED] Web: www.flex-radio.com > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Willi Reppel > Sent: Tuesday, May 23, 2006 1:34 PM > To: Bill Nagle; FlexRadio@flex-radio.biz > Subject: Re: [Flexradio] noisy fan > > Bill, > > Many months ago somebody suggested on the forum to make a > large opening in the cabinet wall behind the fan instead of > letting the cooling air pass through many small holes. The OM > reported a sub-stantial noise reduction and mentioned that > the small holes in the cabinet together with the adjacent > fanwheel create a whining sound like a siren . > > Willi > ----- Original Message ----- > From: "Bill Nagle" <[EMAIL PROTECTED]> > To: <FlexRadio@flex-radio.biz> > Sent: Tuesday, May 23, 2006 6:14 PM > Subject: [Flexradio] noisy fan > > > > Does anyone have a suggestion as to quiet the fan noise on > the sdr1000? > > Perhaps slowing it down a bit with a series resistor? > > > > > > Bill Nagle > > > > > > > > _______________________________________________ > > FlexRadio mailing list > > FlexRadio@flex-radio.biz > > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz > > Archive Link: > > http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/ > > FlexRadio Homepage: http://www.flex-radio.com > > > > > > _______________________________________________ > FlexRadio mailing list > FlexRadio@flex-radio.biz > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz > Archive Link: > http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/ > FlexRadio Homepage: http://www.flex-radio.com > _______________________________________________ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
