Re: [Elecraft] Bad crystal filter ?
Hi Jamie, I was just looking at the crystal filter configuration menu in the K3 Utility program and I noticed that there are check boxes for enabling the filters for DATA mode. I don't know if this is for transmit and receive or just transmit. On my K3 I have this box checked for all of my filters. I also have all of them checked for CW. 73, Mike K2MK James Hall-2 wrote > Working with my newly constructed K3S today, I noticed that receiving > through the FL4 crystal filter (400 hz, 8-pole) was noticeably suppressed. > Through the FL3 (1.8 kHz) filter, an RTTY signal would be nice and strong > with good S-meter indications. Going to 400 Hz the signal would nearly be > lost and I could not decode it. Going to FL5 (250 Hz), the S-meter would > pick up again with strong signals. > > There's not much to check on the Config menu except the FL4 GN and it's at > max (8 db) - not much change. > > Is there something else I should do to deal with this ? > > 73, Jamie > WB4YDL -- View this message in context: http://elecraft.365791.n2.nabble.com/Bad-crystal-filter-tp7607968p7608032.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Bad crystal filter ?
The Pitch is 650 Hz on the K3S. And the Mark for RTTY is the standard2125 Hz. PITCH should be set to the same as MARK in RTTY. 73, ... Joe, W4TV On 9/19/2015 12:49 AM, James C. Hall, MD wrote: In response to W4TV Joe's question: The frequency offset for the 8-pole crystal filter is 0.00 Hz. The Pitch is 650 Hz on the K3S. And the Mark for RTTY is the standard 2125 Hz. I've got a new 400 Hz filter on its way so I'll see what the problem is. I just hope it's not an RF board. I took ESD precautions very seriously while building it so, fingers crossed. 73, Jamie WB4YDL Sent from my iPad On Sep 18, 2015, at 2:30 PM, James C. Hall, MDwrote: Working with my newly constructed K3S today, I noticed that receiving through the FL4 crystal filter (400 hz, 8-pole) was noticeably suppressed. Through the FL3 (1.8 kHz) filter, an RTTY signal would be nice and strong with good S-meter indications. Going to 400 Hz the signal would nearly be lost and I could not decode it. Going to FL5 (250 Hz), the S-meter would pick up again with strong signals. There's not much to check on the Config menu except the FL4 GN and it's at max (8 db) - not much change. Is there something else I should do to deal with this ? 73, Jamie WB4YDL Sent from my iPad __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to li...@subich.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Bad crystal filter ?
In response to W4TV Joe's question: The frequency offset for the 8-pole crystal filter is 0.00 Hz. The Pitch is 650 Hz on the K3S. And the Mark for RTTY is the standard 2125 Hz. I've got a new 400 Hz filter on its way so I'll see what the problem is. I just hope it's not an RF board. I took ESD precautions very seriously while building it so, fingers crossed. 73, Jamie WB4YDL Sent from my iPad > On Sep 18, 2015, at 2:30 PM, James C. Hall, MDwrote: > > Working with my newly constructed K3S today, I noticed that receiving through > the FL4 crystal filter (400 hz, 8-pole) was noticeably suppressed. Through > the FL3 (1.8 kHz) filter, an RTTY signal would be nice and strong with good > S-meter indications. Going to 400 Hz the signal would nearly be lost and I > could not decode it. Going to FL5 (250 Hz), the S-meter would pick up again > with strong signals. > > There's not much to check on the Config menu except the FL4 GN and it's at > max (8 db) - not much change. > > Is there something else I should do to deal with this ? > > 73, Jamie > WB4YDL > > Sent from my iPad __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Bad crystal filter ?
Jamie, What is the offset (FL# FRQ)? What is the PITCH in the K3S vs. MARK in your RTTY software? 73, ... Joe, W4TV On 9/18/2015 3:30 PM, James C. Hall, MD wrote: Working with my newly constructed K3S today, I noticed that receiving through the FL4 crystal filter (400 hz, 8-pole) was noticeably suppressed. Through the FL3 (1.8 kHz) filter, an RTTY signal would be nice and strong with good S-meter indications. Going to 400 Hz the signal would nearly be lost and I could not decode it. Going to FL5 (250 Hz), the S-meter would pick up again with strong signals. There's not much to check on the Config menu except the FL4 GN and it's at max (8 db) - not much change. Is there something else I should do to deal with this ? 73, Jamie WB4YDL Sent from my iPad __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to li...@subich.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Bad crystal filter ?
Jamie, Is there any chance that you have installed the 400Hz filter backwards. Several have reported similar results from that problem. 73, Don W3FPR On 9/18/2015 3:30 PM, James C. Hall, MD wrote: Working with my newly constructed K3S today, I noticed that receiving through the FL4 crystal filter (400 hz, 8-pole) was noticeably suppressed. Through the FL3 (1.8 kHz) filter, an RTTY signal would be nice and strong with good S-meter indications. Going to 400 Hz the signal would nearly be lost and I could not decode it. Going to FL5 (250 Hz), the S-meter would pick up again with strong signals. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Bad crystal filter ?
There's a process in the owners manual for adjusting dB loss compensation for the roofing filters. You can see it with the k3 utility On September 18, 2015 4:57:39 PM EDT, "Joe Subich, W4TV"wrote: > >Jamie, > >What is the offset (FL# FRQ)? > >What is the PITCH in the K3S vs. MARK in your RTTY software? > >73, > >... Joe, W4TV > > >On 9/18/2015 3:30 PM, James C. Hall, MD wrote: >> Working with my newly constructed K3S today, I noticed that receiving >through the FL4 crystal filter (400 hz, 8-pole) was noticeably >suppressed. Through the FL3 (1.8 kHz) filter, an RTTY signal would be >nice and strong with good S-meter indications. Going to 400 Hz the >signal would nearly be lost and I could not decode it. Going to FL5 >(250 Hz), the S-meter would pick up again with strong signals. >> >> There's not much to check on the Config menu except the FL4 GN and >it's at max (8 db) - not much change. >> >> Is there something else I should do to deal with this ? >> >> 73, Jamie >> WB4YDL >> >> Sent from my iPad >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to li...@subich.com >> >__ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft@mailman.qth.net > >This list hosted by: http://www.qsl.net >Please help support this email list: http://www.qsl.net/donate.html >Message delivered to je...@carolinaheli.com -- Sent from my Android device with K-9 Mail. Please excuse my brevity. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com