¼ÐÃD: [¨ä¥¦] FT-817¸¨¥î¤F, KX3¤~¬O¦³¥»¨ÆªºQRP¾÷!
µLÀY¹³
Millerliu
½×¾Â-·|¤Í
Rank: 4

¿n¤À 394
©«¤l 17
QRO 34
QSL 34
QSO 14
QSP 20
µù¥U 2011-2-15
¥Î¤áµù¥U¤Ñ¼Æ 4790
ª¬ºA Â÷½u
µoªí©ó 2012-4-1 03:50 
125.227.128.76
¤À¨É  ¨p¤H°T®§  ³»³¡
http://www.elecraft.com/KX3/kx3.htm<br />
©Ò¦³¦¬µo©Ê¯à§¡¦bFT817¤§¤W, ¾Þ§@¤¶­±§ó¬O¤Íµ½, ¿Ã¹õ­±ª©«h»P°ª¶¥¾÷K3§¹¥þ¬Û¦P, ±µ¦¬¬[ºc¥HSDR«Øºc, ©Ê¯à»·¦b¤G¦¸ÅÜÀW¬[ºc¤§¤W, ±z¸Ô¾¤å¦r»P¼v­µ¸ê®Æ«K¥iÅé·|.


[ ¥»©«³Ì«á¥Ñ Millerliu ©ó 2012-4-1 03:53 ½s¿è ]


bv3dh
¤p¤G¤õ»L½m²ß¥Í
Rank: 1

¿n¤À 446
©«¤l 31
QRO 52
QSL 55
QSO 17
QSP 47
µù¥U 2010-8-11
¥Î¤áµù¥U¤Ñ¼Æ 4977
ª¬ºA Â÷½u
µoªí©ó 2012-4-1 21:07 
61.230.199.182
½Ð°Ý³o­Ó¾÷¾¹¯à¶i¤f¶Ü?Åç¾÷¦³µL°ÝÃD?


bv2bj
¥DÃDª©¥D
Rank: 8Rank: 8
Medal No.9   Medal No.10  

¿n¤À 9062
©«¤l 400
QRO 583
QSL 628
QSO 286
QSP 514
µù¥U 2010-2-5
¥Î¤áµù¥U¤Ñ¼Æ 5165
ª¬ºA Â÷½u
µoªí©ó 2012-4-3 14:47 
114.43.114.199
http://www.elecraft.com/KX3/kx3.htm ©x¤èªºpowerpoint§ë¼v¤ù


bv2bj
¥DÃDª©¥D
Rank: 8Rank: 8
Medal No.9   Medal No.10  

¿n¤À 9062
©«¤l 400
QRO 583
QSL 628
QSO 286
QSP 514
µù¥U 2010-2-5
¥Î¤áµù¥U¤Ñ¼Æ 5165
ª¬ºA Â÷½u
µoªí©ó 2012-4-3 15:01 
114.43.114.199
³oÀ³¸Ó¬OSIGNAL SIDE LAYOUT¦pªG«B¤ô¶]¶i³oùØ­±ÅK±¾¤w¸g¬O¤@¥xÃþ¦ü»ö¾¹ªº¦¬/µo°T¾÷¨S¦³¿³¾Ä·P!


bv2bj
¥DÃDª©¥D
Rank: 8Rank: 8
Medal No.9   Medal No.10  

¿n¤À 9062
©«¤l 400
QRO 583
QSL 628
QSO 286
QSP 514
µù¥U 2010-2-5
¥Î¤áµù¥U¤Ñ¼Æ 5165
ª¬ºA Â÷½u
µoªí©ó 2012-4-13 11:06 
114.43.121.195
FROM QST MAGAZINE COVER


bv2bj
¥DÃDª©¥D
Rank: 8Rank: 8
Medal No.9   Medal No.10  

¿n¤À 9062
©«¤l 400
QRO 583
QSL 628
QSO 286
QSP 514
µù¥U 2010-2-5
¥Î¤áµù¥U¤Ñ¼Æ 5165
ª¬ºA Â÷½u
µoªí©ó 2012-4-16 18:22 
114.25.244.229
¤j³°¤s¹ëª©KX3


µLÀY¹³
Millerliu
½×¾Â-·|¤Í
Rank: 4

¿n¤À 394
©«¤l 17
QRO 34
QSL 34
QSO 14
QSP 20
µù¥U 2011-2-15
¥Î¤áµù¥U¤Ñ¼Æ 4790
ª¬ºA Â÷½u
µoªí©ó 2012-4-17 05:25 
125.227.121.156
http://www.eham.net/reviews/detail/10271  ¶}©l¥X²{KX3¨Ï¥Î³ø§i

(¨Ï¥Î¤¶­±«D±`¶¶¤â, §¹¥þ¤£¹³°g§AªºÄâ±a«¬¾÷ºØ, VFOÅý§A·Pı¦b¨Ï¥Î¤j«¬¾÷ºØ)
Elecraft hit a home run with the KX3. And, I believe it may well be a grand slam when the firmware is completely finished. The KX3 is in an all metal case and the only external plastic is the LCD face cover and four knobs. It is robust but not heavy and it easily hand held and uses two folding legs on the back bottom that are used when operating from the desk. This puts it a perfect angle for viewing the display and using the removable optional paddle that finger screws onto the front edge (more about that later). The VFO knob is all cast metal with a perfectly sized tuning dimple and a rubberized band around the rim of the knob. The VFO A knob has an exceptionally nice feel to it making it feel like those on bigger radios. There is no formal mechanical clutch or brake type drag adjustment, but you can adjust the drag by removing the rubber like ring and use a set screw to loosen the knob and adjust its clearance from a felt washer under the knob. However, I was able to easily adjust it for a spin rate that is perfect for my needs.

(±µ¦¬®É«D±`¦wÀR, ­µ½è¾A·í¤£·|Åý¤H¦¬Å¥¯h³Ò, ®e©ö¿ëÃÑSSB³q¸Ü¤º®e, ÁÙ¥i¥H§@¬°SWLÀH¨­Äâ±a¾÷)
The KX3 receiver performance is superb with very nice full audio. I was surprised at the fullness of the audio and given that I spent approximately 50 hours listening to it and making contacts, I never experienced that ¡§listener¡¦s fatigue¡¨ that is experienced with some radios -- the sharp, noisy background sound. Bravo! I compared the KX3 received signals to my K3, K2 and IC-7800. Every retrievable signal (CW and SSB) I heard and could copy on those radios was as easily copyable on the KX3. In fact, one of my very first impressions of the KX3, when I used it the first day, was how quiet the receiver was. And, that experience has not changed after, literally, living with it for 50 hours over 5 days. I might add, I also had a lot of fun doing some general SWLing with it as it comes with AM. So, it should be a great travel companion -- a nicely portable transceiver with very good SWL capability.

( DSP©Ê¯à»PK3³£¬Û·íÀu²§, §Q¥ÎPBT, filter¥i»´ÃP¹jÂ÷¾FÀW¤zÂZ, ®e©öÅ¥¨ì·L®zSSB¹q¥x)
The DSP filtering is great, like that of my K3. I do have the optional roofing filters, but for casual operation, I am not sure if they are needed. I can say, that with those filters and the excellent PBT and Hi and Low cut ability, the receiver can be set to ¡§barn door¡¨ those close in strong signals. I deliberately but courteously ¡§set up shop¡¨ near such strong signals on both SSB and CW and I could ¡§shut the barn door¡¨ on them with the PBT shift and the combination of DSP and roofing filter capability. This is a wonderful thing no matter how you operate, but really is great for QRP operation since sometimes a much stronger station will get very close because they do not hear the QRP QSO. I really like this receiver -- a lot, a whole lot. The receiver has excellent sensitivity and selectivity given the battery of receiver tools you have in the KX3.

(CW±µ¦¬¥i¦Û°Ê§ä¨ì¸üªi¤¤¤ß, ÁÙ¯à¸Ñ¥XCW¤º®e, ¥¿½T²v·¥°ª)
I used the CW decode function to see how it performed. I have that function on my K3 and it is pretty good. I don¡¦t know if it was how I had the decode parameter thresholds set on the K3 and KX3, but the CW decode seems better on the KX3. I don¡¦t use this in normal operation but is nice to have. I experimented with the decode and selected stations sending nice clean (great fist or computer generated) CW and decode was near perfect. Then, I purposely found some rougher fist straight key signals, and I was taken aback. They were decoded with what I will estimate to be around 80-90% accuracy. I even used it twice during QSOs with stations like that when I was fatigued after being on the air for hours, and again, the decode saved the day .. which then told me I needed to go to bed. Pretty amazing feature.

(µ²½×: KX3©Ê¯à¶W¥X¹w´Á, ¥iÄâ±a¥i©T©w³q°T, ¤H¾÷¤¶­±·¥¤Íµ½)
In sum, the KX3 provided many great surprises for me. To be honest, I didn¡¦t expect it to be as good as it is. I figured , well it¡¦s a small package, another QRP radio offering, and it isn¡¦t real expensive. I sort of figured it was going to be a super-KX1. I was sure wrong in those expectations. This radio is not just a step up QRP radio. The KX3 is huge leap forward in radio design concept whether it be for portable QRP operation or as a primary QRP fixed station radio (and for fixed or mobile QRO with the upcoming 100 Watt amplifier). The whole concept of putting a highly flexible and upgradeable SDR in a form factor that we all have used so much -- knobs and buttons with a great GUI, is something I hoped someone with some good ideas and engineering would do. Elecraft did it and they succeeded in a big way.

[ ¥»©«³Ì«á¥Ñ Millerliu ©ó 2012-4-17 09:53 ½s¿è ]


bv2bj
¥DÃDª©¥D
Rank: 8Rank: 8
Medal No.9   Medal No.10  

¿n¤À 9062
©«¤l 400
QRO 583
QSL 628
QSO 286
QSP 514
µù¥U 2010-2-5
¥Î¤áµù¥U¤Ñ¼Æ 5165
ª¬ºA Â÷½u
µoªí©ó 2012-4-21 13:12 
118.161.137.34
¾Þ§@¼Æ¦ì¼Ò¦¡¥Ü½dHow to connect an Elecraft KX3 to an iPad and run iSDR app http://youtu.be/hvJPxIcdnEg


bv2bj
¥DÃDª©¥D
Rank: 8Rank: 8
Medal No.9   Medal No.10  

¿n¤À 9062
©«¤l 400
QRO 583
QSL 628
QSO 286
QSP 514
µù¥U 2010-2-5
¥Î¤áµù¥U¤Ñ¼Æ 5165
ª¬ºA Â÷½u
µoªí©ó 2012-4-23 11:39 
114.43.112.142
¬ü°ê¦³¦P¦nKX3¾÷¾¹¤w¨ì¤â¦ý¬O¤á¥~¬[¤Ñ½u¨C­Ó¤H³£·Q¶V¤è«K¶V¦n¥Ø«e¼ö¯P°Q½×¤¤§ì¹Ï³o³ü²Õ¬üª÷$80 USD 160-6M 2KW


bv2bj
¥DÃDª©¥D
Rank: 8Rank: 8
Medal No.9   Medal No.10  

¿n¤À 9062
©«¤l 400
QRO 583
QSL 628
QSO 286
QSP 514
µù¥U 2010-2-5
¥Î¤áµù¥U¤Ñ¼Æ 5165
ª¬ºA Â÷½u
µoªí©ó 2012-4-23 11:43 
114.43.112.142
160-6M $45 USD ³£¬OE BAY¤Wªº»ù®æ