On 11/7/2011 5:16 PM, gold...@charter.net wrote: > > Why not go to the confurgation menue and change the filter setting from > 13 to 6 khz. I bet it will work. > That's what you need to do to use the FM filter on AM - lie to the K3. > > > I dont have the filter so I can not check it out. > > I am not sure what effect this would have on the TX width, maybe someone > can check it out. > > ~73 > Don > KD8NNU > > On Mon, Nov 7, 2011 at 1:34 PM, Oliver Dröse wrote: > > > Hi Joe, > > > > interestingly you CAN transmit AM with the FM filter! But it just > > works for one over. ;-)) Found it out by chance during the last few > > weeks with the nice 10 m conditions when tuning to the AM portion of > > the band. I only have the FM filter fitted (besides CW/SSB filters) > > and running firmware 4.42 beta (not tested with other ones) I can > > transmit in AM. Just AFTER releasing the PTT I will get an TXFILERR on > > the VFOB display and will not be able to transmit anymore. You need to > > power-off and on the radio then to make it work again. As that is no > > good QSO practice and you probably miss a few sentences from your QSO > > partner during "K3 reboot" I just did one QSO that way (and > > furthermore I am not really interested in AM just wanted to try it > > out). ;-)) > > > > Just my observations on that topic. Besides I completely agree with > > you, I do not see why you should not be able (or better "allowed") to > > transmit AM through the FM filter ... > > > > 73, Olli - DH8BQA > > > > > > > > ----- Original Message ----- From: "Joe Subich, W4TV" > > <li...@subich.com <mailto:lists%40subich.com>> > > To: <elecraft...@yahoogroups.com <mailto:Elecraft_K3%40yahoogroups.com>> > > Sent: Monday, November 07, 2011 6:13 PM > > Subject: Re: [Elecraft_K3] Re: Close to Ordering > > > > > >> > >>> If you wish to transmit AM, you'll need a 6 kHz filter. > >>> > >>> If you wish to transmit FM, you'll need a 13 kHz FM filter. > >> > >> This still bugs me ... *WHY* won't Wayne enable AM transmit > >> with the FM filter? I've run multiple tests with a spectrum > >> analyzer and can find no image when I set the bandwidth of > >> the FM filter to 6 KHz to enable AM and generate a test signal > >> with the two-tone generator. > >> > >> I don't want to waste one of the limited filter slots for both > >> AM and FM filters but I want to be able to transmit either mode > >> if so inclined. > >> > >> 73, > >> > >> ... 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