Vizio K3-T-Series Manuale del Proprietario

ELECRAFT K3HIGH-PERFORMANCE160 – 6 METER TRANSCEIVEROWNER’S MANUALRevision D10, August 24, 2011Copyright © 2011, Elecraft, Inc.All Rights Reserved

10Customer Service and SupportTechnical AssistanceYou can send e-mail to [email protected] and we will respond quickly – ty

11Front PanelThis reference section describes all front panel controls, the liquid crystal display (LCD), LEDs, and connectors.O

12Display (LCD)Multi-character displays: The 7-segment display(upper) shows the VFO A frequency. The 13-segment display (lower)

13LEDs TX [Red] Turns on in transmit mode. ∆ F [Yellow] The Delta-F LED turns on iftransmit and receive frequencies or mode

14Dual-Concentric Potentiometers AF — SUB AF gain controls for mainreceiver (inner, or smaller knob) and sub receiver(outer

15Direct Frequency EntryTo jump to any frequency within the tuning rangeof the K3, tap F RE Q E N T , then enter 1 to 3 MHzdig

16Memory ControlsFrequency MemoriesThe K3 has 100 general-purpose memories (00-99),plus per-band memories (M1-M4 on each band).E

17Rear PanelConnector Groups The appearance of your rear panel may varydepending upon the options installed.Antennas: ANT1 (SO

18KIO3 ModuleThe KIO3 provides serial I/O, control signals, audioin/out for use with sound cards, speaker outputs,and auxiliary

19Band Outputs (BAND0-BAND3)BAND0-3 provide band selection signals. Theirbehavior is controlled by the CONFIG:KIO3 menuentry (se

2ContentsA Note to K3 Owners ... 3Key to Symbols and Text Styles ... 3Quick-

20SPKRSSTEREO or MONO; 4 to 8 ΩPlugging in external speaker(s) cuts off the internalspeaker. A stereo plug is recommended; tip i

21Basic OperationThis section covers the fundamentals of K3 receiveand transmit operation. It’ll also get you startedusing each

22Band and Mode SelectionTap either end of B A ND to select the desired hamband (160 through 6 meters). You can use directfrequ

23Receiver SetupThis section explains how to use basic receivercontrols. Setup for specific operating modes isdescribed in later

24Filter Presets (I/II)Each operating mode provides two ‘floating’ filterpresets, I and II, which store filter settings on aper-

25Reducing Interference and NoiseThe K3 provides several ways to cut interference,including DSP noise reduction, manual and auto

26Transmitter SetupTransmit Crystal Filter ConsiderationsFor each operating mode, you must specify whichI.F. crystal filter to u

27 External ALC External ALC should only be used to protectyour amplifier during operation into a failedload, or during a prolo

28Voice Modes (SSB, AM, FM)Mode SelectionTap either end of M O D E to select LSB /U SB ,AM, or FM mode. Holding the left end o

29Voice Mode VOX SetupVO X selects push-to-talk (PTT) or voice-operated(VOX) transmit (VOX icon on). VOX hold time isset with

3A Note to K3 OwnersOn behalf of our entire design team, we’d like to thank you for choosing the Elecraft K3 transceiver.The K3—

30CW ModeCW Normal and ReverseSelect CW mode by tapping either end of MO D E .Hold AL T to alternate between CW normal (lowers

31Data ModesYou don’t need a computer to get started with datamodes on the K3: it can receive and display RTTYand PSK31 on its L

32RTTY Dual-Tone Filter (DTF)Hold DUA L P B to turn on the RTTY dual-tonefilter (DTF). This creates two filters, one centered

33Advanced Operating FeaturesText Decode And DisplayThe K3 can decode CW, PSK31 and RTTY.Decoded text is displayed on VFO B. In

34CW-to-DATAYou can use data modes completely stand-alone(i.e., without a computer). Just turn on text decode(pg. 33), and send

35Audio Effects (AFX)If you have stereo headphones or stereo externalspeakers, you can take advantage of the K3’s DSPaudio effec

36SPLIT and Cross-Mode OperationNormally, VFO A is used for both receive andtransmit. When S P L I T mode is selected, VFO Bbec

37Using the Sub ReceiverThe KRX3 option adds an independent, high-performance sub receiver to the K3. It allows youto monitor a

38Diversity ReceiveDiversity receive can greatly improve signal copyduring fading (QSB). True diversity requires a pairof identi

39Receive Antenna In/OutThe RX ANT IN/OUT jacks, supplied with theKXV3 option, have various uses:• Low-noise receiving antenna:

4Quick-Start GuideTo get started using your K3 right away, please read this page and the two that follow, trying each of thecont

40ScanningThe K3's scanning features let the K3 tune any bandsegment continuously, with or without the receivermuted. Scann

41Main and Sub Receiver Antenna RoutingThe simplified block diagrams in this section show how antennas are routed to the main an

42KANT3Ant. Input ModuleMain RXAnt 1KRX3RX Ant.KXV3Sub RXK2K1**SA4*Includes C.O.R.Aux RFSA1SA3Figure 2. Main/Sub Receiver Routi

43K3 with KAT3 and KXV3Figure 4 shows the antenna possibilities with both the KAT3 and KXV3 installed. The main receiver can use

44Remote Control of the K3With appropriate software, any computer with anRS232 port (or a USB-to-RS232 adapter) can beused to co

45Options and AccessoriesKPA500: 500 Watt+ high-performance 160-6 mamplifier with built-in low-noise power supply andautomatic d

46ConfigurationConfiguring your K3 involves installing options andcrystal filters, then customizing menu settings.Options come w

47Transmit Crystal Filter Selection (Per-Mode)This step applies only to filters on the RF board.• Select CW mode by tapping M O

48VFO A Knob Friction AdjustmentThe VFO A knob’s spin rate can be adjusted bymoving the knob in or out slightly. The rubberfinge

49Calibration Procedures All calibration procedures are firmware-based. Please do not adjust any of the trimmercapacitors or p

5Connections • Connect a power supply to the DC input jack {26} (see Specifications, pg. 8).• On the K3/100, a circuit break

50High Power (50 W) TX Gain CalibrationThis applies to the K3/100 only. Use the sameprocedure as shown for 5 watts, but set powe

51Front Panel Temperature Sensor• Turn the K3 OFF. Allow about 15 minutes forthe radio to cool to room temperature.• Turn the

52Menu FunctionsThere are two groups of menu functions: MAIN and CONFIG. Tap M E N U to access the MAIN menu; holdCO N F I G t

53CONFIG MenuTech Mode EntriesMenu entries that include [T] are tech mode entries. These are only visible if CONFIG:TECH MD is set to ON .They are nor

54AGC DCYNORAGC decay characteristic; applies to both fast and slow AGC. NOR selectstraditional linear decay. The SOF T setting can reduce IMD cause

55CW WGHT1.15Adjusts element/space timing ratio (weight) for the internal keyer.Additional functions of this menu entry, via numeric keypad (Advanced)

56FLx FRQSUB 0.00 (FL1)Crystal filter FLx center freq as offset from nominal (8215.0 kHz). Use the offsetvalue specified on the crystal filter’s labe

57KRC2- -Controls the KRC2 band decoder’s accessory output settings. Shows AC C O F For AC C 1-3 if a KRC2 is detected; - - if not.To ensure comp

58MIC BTNOFFSet to ON if your mic has UP/DOWN buttons compatible with the K3’s front-panel mic jack. Not applicable to the Elecraft MH2 or MD2 microph

59RFI DETNORNOR enables detection of high RFI at the K3’s antenna in receive mode (see HIRFI warning, Troubleshooting). Set to OFF to disable the w

6VFOsand RIT/XIT• RA T E {21} selects 10 or 50 Hz VFO/RIT tuning. See VFO menu entries, pg. 53.• F INE {21} selects 1-Hz st

60SPKR+PHNOYES = Speaker is ON, even when headphones are plugged into PHONES jack.See detailed discussion on pg. 20.SQ MAIN0This menu entry normally

61TUN PWRNORIf set to NOR , TU N E power level follows the POWER knob. Otherwise,establishes a fixed power level for TUN E , overriding the present P

62TXGN{pwr}[T]00(Troubleshooting.) Shows transmit gain constant for the present band and powermode, where {pwr} = LP (0-12W), HP (13-120W), or MW (0.

63XVn RF144Lower edge for transverter band n (1-9); 0 -2 49 99 MHz. (Tap 1 – 9 to selectapplicable transverter band.) Normally, 144 would be used f

64TroubleshootingThe most common symptoms and their causes are listed below, in three categories (general, transmit, andreceive). Most problems are r

65impedance. Allow heat sink to cool. Reduce power if necessary. Make sure the CONFIG:PA TEMP menuentry is calibrated (allow heat sink to cool to room

66Parameter InitializationMenu parameters are stored in non-volatile memory (EEPROM and/or FLASH). It is possible, though rare, forparameters to becom

67Module TroubleshootingThe K3 is a highly modular transceiver. With the information provided here, you’ll be troubleshooting to themodule level, not

68Error Message List* = See module de-installation instructions on previous page.Error MsgProblemTroubleshooting stepsERR 12VThe circuit breaker on th

69ERR EE2External EEPROM read/write test failedEEPROM may be defective (front panel).However, this message may also appear ifpower is turned off/on to

7IntroductionThis comprehensive manual covers all the featuresand capabilities of the Elecraft K3 transceiver. Werecommend that

70ERR PL1/2ERR SY1/2ERR SY3/4ERR SY5/6ERR VCOERR VC4VPLL out of range on band change (to viewactual PLL voltage, set CONFIG: TECH MDto ON, then tap D

71Theory Of OperationPlease refer to the block diagram of the K3 shown at the end of this section. Schematics and additional detailscan be found on th

72main BPF array, and due to its very short connections, has no effect on the performance of the main BPFsduring ham-band operation.First I.F. StagesT

73through of the local oscillator (synthesizer) signal. The mixer also incorporates a balanced VHF low-pass filterto suppress both internally and exte

74indicators. Mic and headphones can be plugged into the front panel, or optionally at the rear panel (see KIO3description, pg. 73).The Front Panel PC

75KSYN3 (Synthesizer)Low phase noise is key to both receiver and transmitter performance. In the K3’s synthesizer module (KSYN3),we start with a clean

76K3 Block Diagram

77Appendix A: Crystal Filter Installation Damage to your K3 due to electrostatic discharge (ESD) can occur if you don’t take properprecautions. Such

78 Locate the crystal filters you presently have installed in slots FL1 - FL5 on the RF board (or sub receiver). There may be a mix of 5-pole filters

79Fill in the table below (include sub receiver info, if applicable). Use pencil, since you may change theconfiguration later. BAN D WID TH can be ob

8Specifications Some specifications apply only if the corresponding option modules are installed (see Options, pg. 45).GENERALF

80 Turn the K3 right side up. Unplug all filters to be repositioned (those whose mounting screws have beenremoved). Lift the filters at each end caref

81Index12 VDC IN, 1712 VDC OUT, 171-Hz Tuning, 22Accessory 12 VDC Output, 17Accessory I/O (ACC), 18AF Balance Control, 37, 60AF Gain Range, 53AF Limit

82FM, 56FM Deviation, 56FM Mode, 13, 28, 29FP ACC, 13Frequency Entry, Direct, 15Frequency Memories, 16Frequency Range, 8, 40Friction Adjustment, VFO K

83Repeater Offset, 29, 52RF Board, 71RF GAIN, 51RFI Detection, 59RIT, 6, 11, 14, 16, 22, 62RIT/XIT Offset, 7, 14, 16, 21, 22, 33, 36, 62Roofing Filter

9RECEIVER (Main and Sub)*Sensitivity (MDS)-136 to -138 dBm (typ.), preamp on, 500 Hz bandwidth. 6 m MDS with PR6 option:-143 to