Current buy configuration
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As a result of all of you helping me better understand the K3 here is
what I have come up with as a buy list for a K3 purchase. I wonder if anyone would not mind looking it over, with an eye towards suggestions to me if you see something I missed. Also a few questions first: 1. Do I need something for the KXV3A Upgrade, or is the original item included with the K3? 2. Is there really much of a difference between the stock 2.7 filters, and the 2.8, 8 pole filters for SSB? I will never be on an island doing a DXpedition. Could I save a few bucks and not get the 8 poles for both RX's? Buy Info follows: Basic Rig: K3/100-F K3 K3 Xcvr KAT3-F K3 ATU KRX3-F Second RX KBPF3 Gen Coverage Module KTCX03-1 K3 TXCO (Is this really needed?) KDVR3 Digital voice recorder KUSB USB Cable for connection to Linux box Panadaptor: P3-F KXV3A (See question above) Filters: MAIN RX Only AM: KFL3A-6K AM Filter, only in Main RX All filters below are in Both Main RX and Sub RX SSB: KFL3A-2.8 2.8, 8 Pole Replacement filter, RX, plus Sub RX KFL3A-2.1 2.1, 8 Pole CW: KFL3A-1K 1 K, 8 Pole KFL3A-400 400 Hz, 8 Pole I may replace the 1K filters with 700 Hz filters, I am still mulling this over, any thoughts would be appreciated. -- Support better RFI practices, please sign this petition: at Whitehouse.gov http://wh.gov/lpz5Y ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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Hi Dave:
I don't exactly know your operating preferences ...or how (RF) noisy your local environment is etc. ...I wouldn't be comfortable giving you exact recommendations ..What I will say is ...on a technical level ..it's been recommended that you use the same filter configurations for both receivers ....I don't know the bottom line reason ...it seems operationally that it would be simpler and less to remember What I did was talk to the Elecraft Rep at Seapac last year (when I bought my K-Line). The Elecraft folks are quite genuine in terms of not trying to upsell you what you don't need. Let them know what your operating style is ..and they'll work with you in putting an order together. I wouldn't just go down the order sheet thinking "Hmmm ..do I want this or not?" 73 Steve KL7SB -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of David Cole Sent: Sunday, April 06, 2014 7:41 AM To: [hidden email] Subject: [Elecraft] Current buy configuration As a result of all of you helping me better understand the K3 here is what I have come up with as a buy list for a K3 purchase. I wonder if anyone would not mind looking it over, with an eye towards suggestions to me if you see something I missed. Also a few questions first: 1. Do I need something for the KXV3A Upgrade, or is the original item included with the K3? 2. Is there really much of a difference between the stock 2.7 filters, and the 2.8, 8 pole filters for SSB? I will never be on an island doing a DXpedition. Could I save a few bucks and not get the 8 poles for both RX's? Buy Info follows: Basic Rig: K3/100-F K3 K3 Xcvr KAT3-F K3 ATU KRX3-F Second RX KBPF3 Gen Coverage Module KTCX03-1 K3 TXCO (Is this really needed?) KDVR3 Digital voice recorder KUSB USB Cable for connection to Linux box Panadaptor: P3-F KXV3A (See question above) Filters: MAIN RX Only AM: KFL3A-6K AM Filter, only in Main RX All filters below are in Both Main RX and Sub RX SSB: KFL3A-2.8 2.8, 8 Pole Replacement filter, RX, plus Sub RX KFL3A-2.1 2.1, 8 Pole CW: KFL3A-1K 1 K, 8 Pole KFL3A-400 400 Hz, 8 Pole I may replace the 1K filters with 700 Hz filters, I am still mulling this over, any thoughts would be appreciated. -- Support better RFI practices, please sign this petition: at Whitehouse.gov http://wh.gov/lpz5Y ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by NK7Z
I would get rid of the 1.0K CW filters for 700Hz and get rid of the
400Hz for 250Hz. I would get 1.8Khz SSB filters instead of the 2.1KHz. The KXV3A is not included in the K3 so you need one for the P3. The upgrade is for those users who bought the original KXV3. On 4/6/2014 10:41 AM, David Cole wrote: > As a result of all of you helping me better understand the K3 here is > what I have come up with as a buy list for a K3 purchase. > > I wonder if anyone would not mind looking it over, with an eye towards > suggestions to me if you see something I missed. > > Also a few questions first: > > 1. Do I need something for the KXV3A Upgrade, or is the original item > included with the K3? > > 2. Is there really much of a difference between the stock 2.7 filters, > and the 2.8, 8 pole filters for SSB? I will never be on an island doing > a DXpedition. Could I save a few bucks and not get the 8 poles for both > RX's? > > Buy Info follows: > > Basic Rig: > K3/100-F K3 K3 Xcvr > KAT3-F K3 ATU > KRX3-F Second RX > KBPF3 Gen Coverage Module > KTCX03-1 K3 TXCO (Is this really needed?) > KDVR3 Digital voice recorder > KUSB USB Cable for connection to Linux box > > Panadaptor: > P3-F > KXV3A (See question above) > > Filters: > MAIN RX Only > AM: > KFL3A-6K AM Filter, only in Main RX > > All filters below are in Both Main RX and Sub RX > SSB: > KFL3A-2.8 2.8, 8 Pole Replacement filter, RX, plus Sub RX > KFL3A-2.1 2.1, 8 Pole > > CW: > KFL3A-1K 1 K, 8 Pole > KFL3A-400 400 Hz, 8 Pole > > I may replace the 1K filters with 700 Hz filters, I am still mulling > this over, any thoughts would be appreciated. > -- R. Kevin Stover AC0H ARRL FISTS #11993 SKCC #215 NAQCC #3441 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by NK7Z
It depends on what you plan to use the K3 for. As for myself - and
myself only - I built the 100 Watt version with: KFL3A-2.1K filter for those nights when things are tight on 75 meters MH2 hand mic (works good except the switch can be trashy (I fixed that problem) KAT3 which I suggest buying even if you plan on later getting the KAT500 KBPF3 general coverage module (I listen to WBZ from Boston a lot) KFL3A-6K AM filter KXV3A for running the P3 (planning ahead) A couple of months later: P3-F the perfect add-on for the K3 And a few more months later: KAT500 KPA500 bought as a set with all the wires etc. You see, David, that is the beauty of the K3 - you can have a custom built rig specifically for your needs and desired. My needs are for armchair copy on 75 and 40 with a little SWL from time to time. Can I accomplish the same cheaper? Sure. My backup station is a Kenwood TS480SAT (needs none of the extra add-ons). For a display, I can use an SDR and one of the free SDR software packages. A middle of the road tuner and a small tube amp finishes it out. Works well - all for under the cost of the K3 alone. Uh huh! After you have a K-Line, you will understand why I spent the extra dollars for the Elecraft station. No fiddly controls to mess with when changing frequency, solid QRM removal, fully customizable RX/TX audio, and the list goes on. I am not saying that the 480 station is junk - far from it. I am saying the K-Line is worth the extra money to me - and I do not part with money easily - I worked too hard to get it. I think you have already made up your mind to get the K3 - so ENJOY!!! Bill - a K-Line owner/operator ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Kevin Stover
FWIW. My K3 main and sub RX both have stock 2k7 and the optional 500Hz
filters. I work SSB, CW and RTTY (AFSK). Works for me at both the blunt and sharp end of pile-ups. Understand what the filters are for and you might not feel the need to blow a kings ransom on too many extras. You can always install them later (easy) if you really feel the need. My PC is a modest Dell Inspiron 560, Dual-Core, 3.2GHz Win7/64 box. Software CW seems perfectly OK (Logger32 and SD), I no longer need Winkey, however, I've kept my Micro Ham CW Keyer in case I need a USB interface for either K2 or K3. Integrated audio is Realtek HD which runs happily at 192 samples/sec so no fancy sound card needed. Has been used with success on 6M EME JT65. Minimalist at heart. Regards, Mike VP8NO >> >> 2. Is there really much of a difference between the stock 2.7 filters, >> and the 2.8, 8 pole filters for SSB? I will never be on an island doing >> a DXpedition. Could I save a few bucks and not get the 8 poles for both >> RX's? >> >> Buy Info follows: >> >> Basic Rig: >> K3/100-F K3 K3 Xcvr >> KAT3-F K3 ATU >> KRX3-F Second RX >> KBPF3 Gen Coverage Module >> KTCX03-1 K3 TXCO (Is this really needed?) >> KDVR3 Digital voice recorder >> KUSB USB Cable for connection to Linux box >> >> Panadaptor: >> P3-F >> KXV3A (See question above) >> >> Filters: >> MAIN RX Only >> AM: >> KFL3A-6K AM Filter, only in Main RX >> >> All filters below are in Both Main RX and Sub RX >> SSB: >> KFL3A-2.8 2.8, 8 Pole Replacement filter, RX, plus Sub RX >> KFL3A-2.1 2.1, 8 Pole >> >> CW: >> KFL3A-1K 1 K, 8 Pole >> KFL3A-400 400 Hz, 8 Pole >> >> I may replace the 1K filters with 700 Hz filters, I am still mulling >> this over, any thoughts would be appreciated. Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by NK7Z
* On 2014 06 Apr 10:43 -0500, David Cole wrote:
> KUSB USB Cable for connection to Linux box That may not be necessary as the Prolific driver issue that exists on Windows doesn't exist on Linux, IME. I use an IO Gear Prolific based USB to serial adapter without issue and have for several years over a number of kernel releases as I run Debian Unstable on the box the K3 is connected to. I chose the IO Gear after determining that it generated far less RFI than a cheaper Prolific adapter from another source. > All filters below are in Both Main RX and Sub RX > SSB: > KFL3A-2.8 2.8, 8 Pole Replacement filter, RX, plus Sub RX > KFL3A-2.1 2.1, 8 Pole I have the 2.7 and 2.1 k filters. In my situation when I set the High Cut on LSB to cut out a group that is 2 kHz lower than our net frequency every morning--dialing the high audio frequency down to 2150 Hz--the rig cuts in the 2.1 kHz filter and they are GONE. I would not be without the 2.1 kHz filter, but I do question my need for the 2.8 kHz filter even though it has steeper skirts. I've found that dialing the bandwidth down to 2.6 or 2.5 kHz probably results in the same performance. You have to know, but I've been satisfied with the 2.7 kHz filter and am glad to have the 2.1 kHz filter for rough/contest conditions. > CW: > KFL3A-1K 1 K, 8 Pole > KFL3A-400 400 Hz, 8 Pole I also have the 1 kHz filter that I prefer for some digi stuff and general listening on CW. I also have the 500 and 250 Hz filters and really like the more narrow BW for source and pounce on a crowded contest band. As you are choosing the AM filter you'll have to decide on which to choose so the 400 Hz filter may be a very good compromise for your operating preferences. I appreciate that you're choosing the 8 pole filters. As you have nearby stations which I don't have, this may be a very wise choice. The DSP does a lot on its own but will benefit greatly with good filtering ahead of it and your choices show that you're thinking in this direction. I think you will enjoy the performance. 73, de Nate, N0NB >> -- "The optimist proclaims that we live in the best of all possible worlds. The pessimist fears this is true." Ham radio, Linux, bikes, and more: http://www.n0nb.us ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by NK7Z
Regardless of whether you get a P3, the KXV3A should be installed in ANY
K3 build from day one. It's extremely valuable for running external receive antennas and/or the installation of bandpass filters, step attenuators, etc. between the transmit antenna and the main receiver input. If you ever need an accessory such as one of the MFJ-1026 or Timewave ANC-4 boxes to combat local noise you can easily patch it into the receive line without worrying about the noise canceller T/R relay switching giving you problems if you have the KXV3A installed. And you might someday want to get an external VHF transverter. Having the KXV3A makes adding a transverter a snap. The KXV3A (the only version now available) is required to support the P3. I put the 8-pole roofing filters in my K3, but that was primarily because I installed the second receiver and planned to use it for diversity reception in 160 meter contest conditions. The 2.7 kHz filters are perfectly adequate for operation in virtually any normal environment short of Field Day or contest operation with huge antennas. Since you're also planning to get the KRX3, you can order a pair of 2.7 kHz units with matched offsets at build time for a nominal extra fee, which I would recommend. Unless you do a lot of CW band scanning, the 1 kHz CW filter probably won't find much use. The 2.7 kHz filter will work just fine for wider bandwidth CW operation. I would substitute the 13 kHz FM filter for the 6 kHz filter for AM use. The 6 kHz filter limits your recovered audio bandpass to 3 kHz, just a very small bit wider than you can get using normal SSB demodulation on AM signals. If you want "broadcast quality" AM audio, the wider filter would probably be a better choice. Note that the AM receive (and transmit) bandwidth is limited by the K3's DSP processing and you won't get the full 6.5 kHz audio range on AM that a 13 kHz filter would imply. 73... Randy, W8FN On 4/6/2014 10:41 AM, David Cole wrote: > As a result of all of you helping me better understand the K3 here is > what I have come up with as a buy list for a K3 purchase. > > I wonder if anyone would not mind looking it over, with an eye towards > suggestions to me if you see something I missed. > > Also a few questions first: > > 1. Do I need something for the KXV3A Upgrade, or is the original item > included with the K3? > > 2. Is there really much of a difference between the stock 2.7 filters, > and the 2.8, 8 pole filters for SSB? I will never be on an island doing > a DXpedition. Could I save a few bucks and not get the 8 poles for both > RX's? > > Buy Info follows: > > Basic Rig: > K3/100-F K3 K3 Xcvr > KAT3-F K3 ATU > KRX3-F Second RX > KBPF3 Gen Coverage Module > KTCX03-1 K3 TXCO (Is this really needed?) > KDVR3 Digital voice recorder > KUSB USB Cable for connection to Linux box > > Panadaptor: > P3-F > KXV3A (See question above) > > Filters: > MAIN RX Only > AM: > KFL3A-6K AM Filter, only in Main RX > > All filters below are in Both Main RX and Sub RX > SSB: > KFL3A-2.8 2.8, 8 Pole Replacement filter, RX, plus Sub RX > KFL3A-2.1 2.1, 8 Pole > > CW: > KFL3A-1K 1 K, 8 Pole > KFL3A-400 400 Hz, 8 Pole > > I may replace the 1K filters with 700 Hz filters, I am still mulling > this over, any thoughts would be appreciated. > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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There have been many suggestions to this so far and all good
depending on your interests. For me, I am mostly a CW op and decided to select filters for that purpose. I also knew I wanted a RX antenna and listened to the chatter back in 08 deciding to get many accessories knowing I'd want them later on. I kept adding options as I enjoy SWLing and a maximally stable rig for future digital modes I'd want to switch to. I wanted the sub Rx and that meant buying other parts than just the sub Rx. So here it is 2014 and I've added just about everything there is to offer except a couple filters on both boards and the 2M option. I have the voice module but will put that in the next time I open the K3, I'm in no hurry and don't "need" anything else. I'll probably add the 2M option down the road but the bottom line to me is I decided what I initially wanted the K3 to offer me and as I came across more savings, I added the next part I wished I had till I have a fully stacked K3 minus those couple of parts I mentioned. I surely don't "need" anything more at this point but its a delight knowing my K3 will do everything I ask of it that it is capable of doing. With my old ears there's not much any other rig would offer that this one doesn't give me and its so easy to use once you set it up the way you want. You decide what you want right now and then decide what you will probably want. If money is a problem, do the lowest common denominator and get the minimum you need. If you can afford it, ask what others are using to do what you want to do and then buy that equipment at the same time so you can do it all at once. It would have been much easier if I had just bought it all at the same time and never had to open the rig again to update. YMMV, 73, Gary KA1J --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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