K3 beta-test firmware revision 2.82 (with DSP rev 2.00) is now available. See release notes below.
Please send any problem reports to [email protected]. For instructions on how to load beta firmware, please see: http://www.elecraft.com/K3/k3_software.htm We also recommend that you use the latest revision of K3 Utility, which can also be found on this page. 73, Wayne N6KR * * * MCU 2.82 / DSP 2.00, 2-9-2009 Data Mode Changes: * AFSK MODE TRANSMIT FILTERING: Some K3 owners have reported hearing noise on their RTTY transmit signal when using AFSK-A mode. Possible sources of noise include RFI, ground loops, low AF level, or poor mark/space transition shaping by software. The effects of noise from many sources can be eliminated by using a narrow, constant-delay transmit filter (DSP). To enable this filter, set CONFIG:AFSK TX, to FIL ON (default is OFF). * SSB/DATA-A/AFSK-A TRANSMIT POWER LEVEL: Power output in these modes now more closely tracks TUNE power. We recommend setting CONFIG:TXG VCE to 0.0 dB after loading this release, then adjusting only if necessary. * DATA MODE ALC METERING: ALC metering for DATA-A and AFSK-A modes has been adjusted to make the transmit audio level easier to adjust. As before, the recommended audio level for transmission is 4 to 5 bars. 3 bars will appear as soon the minimum required level for good S/N ratio has been reached. * FSK POLARITY MENU ENTRY: Setting CONFIG:FSK POL to 0 reverses RTTY data polarity (applies only to FSK-D mode transmit) . Note: If you use the ALT switch to select DATA REV mode, this reverses both RX and TX tones, in both AFSK-A and FSK-D modes. This should rarely be required. FSK POL can be used by itself or in combination with DATA REV. Misc. Changes: * DVR MESSAGE CANCEL WITH PTT OR VOX: Both one-time and repeating DVR transmit message play can now be cancelled cleanly with either PTT or VOX. * AM MODE SPEECH COMPRESSION: Speech compression is now available in AM mode. This can add punch to your AM signal. As with any type of compression, it should be used only when necessary. * FM TX DEVIATION: This is now more accurate. Previous versions could underdeviate by as much as 1 kHz. Setting is now accurate from 3.0 kHz to 5.0 kHz of deviation when modulated by 1 kHz tone with 5 bars of ALC indicated. For software developers: * “BN” COMMAND ADDED (Band Number). GET only. This command returns the K3’s present band number (0-10 = 160 m - 6 m, 11-15 reserved for future use, 16-24 = XVTR bands 1-9). It is useful for software applications that need to know if the operator has tuned the VFO across a logical band boundary. This eliminates the need for applications to keep track of what the K3’s internal band boundaries are. --- http://www.elecraft.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
