Elecraft_K-3_user_errata_2015.pdf

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1、 ELECRAFT K3 OWNERS MANUAL ERRATA Rev. D10-8, March 31, 2015 IMPORTANT NOTES READ BEFORE OPERATING THE K3 SAVE K3 CONFIGURATION OFTEN: Whenever you make a configuration change to your K3, such as adding a new option module or changing important menu settings, use the K3 Utility application to save t

2、he configuration file. This can be used to restore your configuration in the event of data loss or following an EEINIT (initialization). IF THE SPEAKER IS NOT WORKING with headphones unplugged: Locate the CONFIG:SPKR+PH menu entry. Tap 1 on the numeric keypad until you see PH.R SW . The minus sign (

3、-)indicates inverted switch logic for the jack for the newer KIO3 audio board. Exit the menu and re-save your configuration using K3 Utility. EXTERNAL SPEAKER JACK CAUTION: This jack is stereo. If you use a mono speaker plug, turn off the right channel amplifier by setting the CONFIG:SPKRS menu entr

4、y to 1. This will eliminate the possibility of damaging the right-channel amplifier. (You will still hear stereo when using headphones.) K3EXREF (external 10-MHz reference) SETUP REQUIRED: In the CONFIG:REF CAL menu entry, tap 2 to change the external reference setting; flashes XREF IN (enabled) or

5、XREFOUT (disableddefault). If you use XREF IN setting without a K3EXREF module installed, you may hear digital switching noise on the 6-m band. NEW FEATURES KSYN3A SYNTHESIZER: If your K3 is equipped with the new KSYN3A synthesizer, the VFOs will tune down to as low as 100 kHz, close-in phase noise

6、will be lower, and high-speed CW will be much more accurate. See for details. KAT500 ATU VFO TRACKING: The K3 can now send its VFO frequency to the KAT500 ATU continuously to allow it to automatically update its L-C network. Locate the CONFIG:KAT3 menu entry, then tap 1 to change the KAT500 setting

7、to KAT500Y (yes) or KAT500N (nothe default). PSK63 DATA MODE: To select PSK31 or PSK63, first tap either end of the MODE switch to select DATA, then hold the DATA MD switch and use VFO A to select the PSK data rate. AM and ESSB TRANSMIT CAN USE THE FM FILTER: This can potentially free up a crystal f

8、ilter slot for operators who were using the 6-kHz filter only for AM and ESSB. Note: The 6-kHz filter is still recommended for high-performance ESSB and AM, as it provides significantly better close-in dynamic range than the FM filter. MANUAL CORRECTIONS Pgs. 5, 8, and 17 (Accessory DC jack): For K3

9、 s/n # 6588 or later, the accessory DC output is rated for a maximum current of 1.0 A (0.5 A prior to this). Earlier K3s can be updated using Elecraft part number “K312MDKT” (K3 12-V modification kit). Pgs. 8 and 9 (Specifications): Frequency range lower limit with KSYN3A synthesizer is now 100 kHz.

10、 (See KSYN3A FAQ, referenced above.) Maximum K3/100 power output on 6 meters is 80 W typ. 13.8V ( 1 dB). Pg. 14 (VFO Tuning Controls): Holding SUB now turns diversity receive on/off. To link VFOs, use CONFIG:VFO LNK. Pgs. 21 and 52 (Menu): Holding the CONFIG switch for 3 seconds places the K3 into T

11、ERM mode, where the radio becomes a control terminal for a remotely located K3. This is most often used with the K3/0-mini, a front panel only (see Exit TERM mode by holding CONFIG for 5 seconds. Pg. 22 (Antenna Selection and Matching): Per-band antenna matching memories for the KAT3 ATU can be clea

12、red on the current band by entering the CONFIG:KAT3 menu entry, then tapping CLR. Pg. 36 (General-Coverage Receive): For better sensitivity below 1.8 MHz, use the RX ANT IN or XVTR IN jacks (KXV3). Pg. 36 (VFO B Alternate Displays): With a KSYN3A installed, the PLL1/2 displays become SYN1/2 (synthes

13、izer status). Pg. 45 (Options): New options include the K3/0-Mini remote panel (see item above), and the PR6-12 Preamp (replaces PR6). Pgs. 49 and 62 (Synthesizer Calibration and VCO MD menu entry): No calibration is needed for the KSYN3A synthesizer. Pg. 52 (MIC SEL menu entry): To turn on addition

14、al front-panel mic gain, tap 7, not 3. Use with very low-output mics only. Pg. 58 (REF CAL with K3EXREF module): Tap 2 to enable or disable the 10-MHz external reference (XREF IN/OUT). Pg. 59 (RS232 menu entry): The PC configuration program for the K3 is K3 Utility, not K3FW (a predecessor program).