Re: [Elecraft] Reminder: KX3 Tracking sheet - Deliveries this week
I would also bet that the construction crew is using this sequence in order to perfect the building sequence so that they can ensure kit builder glitches are held to a minimum when they go out. Bill WK6A Sent from my iPhone On Apr 24, 2012, at 11:42 AM, Edward R. Cole kl...@acsalaska.net wrote: Steve, Many of us waiting delivery. I checked the shipping status page and read this: As of 4/12: Now shipping orders from Dec. 27, 2011. and Assembled and Kit KX3s are built on parallel production lines. Orders for each type will be shipped in the same order they are received. Built KX3s will be the first units we ship as we finalize the kit assembly manual. presumably the assembly manual is finished (or nearly so?), so kits would be shipped. I am waiting for a kit as well. But would not blame Elecraft for clearing their assembled backlog first as those folks paid $100 more for their radios. I would guess that is not Elecraft's sales philosophy but no one could fault them if it were. I am doubly anxious as I am anticipating the KX3-2M beta testing to begin fairly soon. Anyone interested my recent activity building a Downeast MW 432 Transverter: http://www.kl7uw.com/DEMI-KIT-ASSY.htm Date: Tue, 24 Apr 2012 04:02:49 -0700 (PDT) From: Steve KC8QVO kc8...@yahoo.com Subject: Re: [Elecraft] Reminder: KX3 Tracking sheet - Deliveries this week To: elecraft@mailman.qth.net Message-ID: 1335265369167-7495463.p...@n2.nabble.com Content-Type: text/plain; charset=us-ascii I looked at that spreadsheet and it appears that only the assembled versions are being shipped. I would have thought some kits would have gone out by now. It isn't looking good for having the KX3 for Hamvention and my summer vacation. Steve, KC8QVO 73, Ed - KL7UW, WD2XSH/45 == BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 50-1.1kw?, 144-1.4kw, 432-QRT, 1296-?, 3400-? DUBUS Magazine USA Rep dubus...@gmail.com Kits made by KL7UW http://www.kl7uw.com/kits.htm == __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] New KAT500 pics from the Visalia DX convention
Thanks everyone for the discussion and thanks Jim for the part number. Now considering the options, but leaning towards just sticking with what I've got, which is mostly 'UHF' on HF and 'N' type on V/UHF. The only BNC are on the 6M preamp and will be on the XV144. Note that legal limit here is 400W and not many of us run that since neighbors are only a few feet away in a lot of cases ;-( - 73 de M0XDF On 25 Apr 2012, at 03:49, Ron D'Eau Claire r...@cobi.biz wrote: It's a simple homebrew - a square of aluminum (or whatever - even scrap PCB) with a hole for the BNC in the center and two or four holes in the SO239 pattern for mounting. But I don't know that there's a significant loss in using a *quality* SO239-BNC adapter. That's what I do. It's very nice having only ONE type of coaxial connector - a simple twist-lock BNC - especially because I have to tear the setup apart constantly. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] New KAT500 pics from the Visalia DX convention
Dick Dievendorff wrote: I have that same too busy ACC connector problem with antenna bandpass filter switching, amp, PR-6, and PTT/FSK connection to a microHAM device. I'm using a couple of layers of Y connector, dislike the solution, and I have ideas to resolve that problem somehow. One solution is to build a breakout box to move all of these interconnection problems away from the K3 itself. Since I also wanted to make a shallow base to raise the K3 about 1.5 inches above the table, both of these functions have been combined to make a breakout base on which the K3 stands. A short 15-way cable connects to the ACC socket of the K3, and all of those 15 lines are fanned out to a stripboard patch panel inside the base unit. Another short cable connects the switched 12V output from the K3. All of the input and output signals that would otherwise go to the ACC connector are now routed to individual connectors on the 10in wide rear panel of the breakout base. These currently include FSK input from the PC, PA inhibit from the SteppIR, additional band data outputs and three 12V outputs switched by the K3. This will perpetually be a work in progress, modified to meet current needs. For example, when an SSPA came on the scene, it was very easy to tap into all the necessary control and band data lines, and gather them into a custom umbilical cable. One day I shall complete the front panel of this unit, which currently stands empty. But, like Dick... Unfortunately I have more ideas than time to implement them. -- 73 from Ian GM3SEK http://www.ifwtech.co.uk/g3sek __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] [FS] 2.1KHz 8 Pole Filter to suit Elecraft K3
G'day everyone, I have available for sale a 2.1KHz 8 Pole Fileter to suit a K3. Anyone interested? US$125.00 inc post to the US of A or the UK / EU Please contact me via email at vk4xa at ARRL dot net. - Jeff Cochrane - VK4XA Innisfail, QLD, Australia. Elecraft K3 #4257 + KPA500 + PR6 + K144XV = OMFG! -- View this message in context: http://elecraft.365791.n2.nabble.com/FS-2-1KHz-8-Pole-Filter-to-suit-Elecraft-K3-tp7498724p7498724.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 and HRD
Hi Guys.( Not gender specific) I just installed HRD v 5.11 on my computer and connected to the K3 with the KUSB cable into the RS-232 port on the radio. In the set up I have the Elecraft K3 on com port 3 at 38,400 Baud rateHow ever HRD tries, but cannot read the frequency on the radio. I am not in memory mode, the radio is on and using an Elecraft supplied cable. SuggestionsWhat is this OM over looking. 73' Steve W8CRH SEMPER FI __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] New KAT500 pics from the Visalia DX convention
I too use all BNC and LMR-240 cables. Great shield on this cable and low loss. Chuck, KE9UW aka Jack, BMW Motorcycles From: elecraft-boun...@mailman.qth.net [elecraft-boun...@mailman.qth.net] on behalf of Craig Smith [cr...@powersmith.net] Sent: Tuesday, April 24, 2012 11:10 PM To: garyk...@wi.rr.com Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] New KAT500 pics from the Visalia DX convention It boils down to personal preference, and I like BNCs. UHF seem really large and clunky to me, and I don't like having to unscrew them rather than just a small twist. One factor that other folks might not have is that I run strictly low power and the largest coax I have anywhere in my station is LMR-240 size. So using a large connector seems like overkill to me. I also invested in a good crimp tool and make all my own BNC cables and have yet to have a failure. So to me, there is zero downside to using BNCs. But I appreciate that others may have a different opinion. 73 Craig AC0DS __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] New KAT500 pics from the Visalia DX convention
I once bought a non Ampenol right angle UHF adapter which became intermittant. I found a spring inside it making the corner instead of the Amphenol method of two silver plated rods, one screwed into the other at right angles. Chuck, KE9UW aka Jack, BMW Motorcycles From: elecraft-boun...@mailman.qth.net [elecraft-boun...@mailman.qth.net] on behalf of Jim Brown [j...@audiosystemsgroup.com] Sent: Tuesday, April 24, 2012 10:53 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] New KAT500 pics from the Visalia DX convention On 4/24/2012 8:07 PM, Don Wilhelm wrote: Below 100 MHz, the UHF connector is perfectly adequate. The notion that PL-259 and mating SO239 connectors are not good at VHF (and even low UHF) because their impedance isn't close enough to 50 ohms is one of those myths that is not based on fact. A few years ago, I spliced together 1,300 ft of Commscope 3227 (like LMR400, but with a solid #10 copper center) that cut into 100 ft lengths for a DX trip. There were a total of about 24 PL-259s and about half that number of barrels, all Amphenols. The loss at 500 MHz measured by substitution using HP test gear, was a dB or so less than the published spec for the cable. What folks seem to miss is that 1) while there may be a SMALL difference in the Zo, the length of the connector is also small as a fraction of a wavelength, and 2) the tendency of loss in ANY transmission line to bring the VSWR back to unity. Both of these factors tend to render any small discontinuity meaningless below 1 GHz or so. What matters FAR more is the QUALITY of the connectors used. Most of the deficiencies blamed on UHF connectors (and on BNC connectors) are the result of the use of no-name JUNK connectors. I use nothing but Amphenols. They cost a bit more, but I've been bitten far too often (and badly) when I've used anything else. Nothing like having a connector fall apart, or melt because it's made of thin metal, or because wide tolerance parts don't mate securely, or a dielectric that melts when you try to solder the connector. And a junk connector that fails 80 ft up in the air can be both difficult to diagnose and VERY costly to replace! 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 and HRD
Steve, What COM port/baud rate is HRD using? They must match. 73, --Ian Ian Kahn, KM4IK Roswell, GA EM74ua km4ik@gmail.com K3 #281, P3 #688 HRD v5.x/6.0 Test Team On Wed, Apr 25, 2012 at 7:49 AM, Steve w8...@comcast.net wrote: Hi Guys.( Not gender specific) I just installed HRD v 5.11 on my computer and connected to the K3 with the KUSB cable into the RS-232 port on the radio. In the set up I have the Elecraft K3 on com port 3 at 38,400 Baud rateHow ever HRD tries, but cannot read the frequency on the radio. I am not in memory mode, the radio is on and using an Elecraft supplied cable. SuggestionsWhat is this OM over looking. 73' Steve W8CRH SEMPER FI __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html -- __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 KPA500
Folks, I am contemplating a new K3 rig to replace my K2. I have seen posts regarding the drive necessary for the KPA500 and it looks like the 10 watt K3 doesn't quite have enough. Currently I use my K2 with a Granberg AN762 brick amp and LPFs. I wonder if anyone has played with or has comments about the viability and advisability of a 10W K3 == AN762 ==KPA500 arrangement. I know 6 meters may not work well and I don't know about signal quality degradation versus a direct 100W K3 ==KPA500 arrangement. Thanks. 73, Jack (W0FNQ) -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-KPA500-tp7499254p7499254.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K1 Stand Screw Size
Hello all, I have a K1 and I’m building a bracket to tilt the rig on my desk. I am having trouble figuring out the size of the screw for the side of the radio. I’m thinking it’s a #8 but it starts tight and I’m afraid to force it. Anyone know the proper screw? Thanks, Rick AA4W Crescent City, FL __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 Stand Screw Size
Rick, According to the KTS1 manual, it is 10-32. Both the diameter, and the thread pitch must match. Common hardware at the DIY store may be 10-24. 73, Don W3FPR On 4/25/2012 8:50 AM, Rick Lloyd wrote: Hello all, I have a K1 and I’m building a bracket to tilt the rig on my desk. I am having trouble figuring out the size of the screw for the side of the radio. I’m thinking it’s a #8 but it starts tight and I’m afraid to force it. Anyone know the proper screw? Thanks, __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 KPA500
Jack, If you are looking for full output, then yes, you will need more than the K3/10. But, 10 watts will give you between 200 and 250 watts output from the KPA500. 73, Don W3FPR On 4/25/2012 8:47 AM, artus wrote: Folks, I am contemplating a new K3 rig to replace my K2. I have seen posts regarding the drive necessary for the KPA500 and it looks like the 10 watt K3 doesn't quite have enough. Currently I use my K2 with a Granberg AN762 brick amp and LPFs. I wonder if anyone has played with or has comments about the viability and advisability of a 10W K3 == AN762 ==KPA500 arrangement. I know 6 meters may not work well and I don't know about signal quality degradation versus a direct 100W K3 ==KPA500 arrangement. Thanks. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] New KAT500 pics from the Visalia DX convention
I ran into this issue and if there is a commercial solution available I would love to hear about it. Keith AG6AZ Dick Dievendorff wrote: I have that same too busy ACC connector problem with antenna bandpass filter switching, amp, PR-6, and PTT/FSK connection to a microHAM device. I'm using a couple of layers of Y connector, dislike the solution, and I have ideas to resolve that problem somehow. If anyone has found a commercial solution to this that would be great. I run a Yaesu Quadra with the K3 and the integration with the PR6 and the Quadra is clunky at best into a single ACC port. Keith AG6AZ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] KX3 ATU
Niel / Robert : For what it is worth, 86 feet (i.e 26.5 m) is the ideal length of end-fed wire for matching via an auto tuner to cover the HF bands. It is a magic length that isn't close to a multiple of a half wave on any of the HF bands (with perhaps the exception of 10m) so it presents a reasonable impedance that can be matched by most ATUs across the HF spectrum. As Eric mentioned, you want to stay away from lengths that are close to a half wave multiple on the bands that you want to operate as the wire will present a very high impedance that is difficult to match with any ATU. Not surprisingly, this length is not far off of the length of wire used for the W3EDP antenna (84 feet). Michael VE3WMB __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 orK2
Hi all sorry for the mail iam looking for a used K3 or K2 only need 10watt as it will be used to drive transverters. Thanks Tony(G0GMS) Please reply tr...@bigroup.freeserve.co.uk __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 Stand Screw Size
A good hobby shop will carry 10-32 hardware. 73, Randy, KS4L On Apr 25, 2012, at 8:01 AM, Don Wilhelm w3...@embarqmail.com wrote: Rick, According to the KTS1 manual, it is 10-32. Both the diameter, and the thread pitch must match. Common hardware at the DIY store may be 10-24. 73, Don W3FPR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 Stand Screw Size
Thanks for the replies, The K1 manual doesn't mention the side bolt, as I could tell. But I was sure someone had a KST2 manual. I'm good to go, now. Regards, Rick AA4W -Original Message- From: Don Wilhelm Sent: Wednesday, April 25, 2012 09:01 To: Rick Lloyd Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] K1 Stand Screw Size Rick, According to the KTS1 manual, it is 10-32. Both the diameter, and the thread pitch must match. Common hardware at the DIY store may be 10-24. 73, Don W3FPR On 4/25/2012 8:50 AM, Rick Lloyd wrote: Hello all, I have a K1 and I’m building a bracket to tilt the rig on my desk. I am having trouble figuring out the size of the screw for the side of the radio. I’m thinking it’s a #8 but it starts tight and I’m afraid to force it. Anyone know the proper screw? Thanks, __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] [FS] 2.1KHz 8 Pole Filter to suit Elecraft K3
Thanks to all that replied off list, the filter has now been sold. Jeff Cochrane - VK4XA - Jeff Cochrane - VK4XA Innisfail, QLD, Australia. Elecraft K3 #4257 + KPA500 + PR6 + K144XV = OMFG! -- View this message in context: http://elecraft.365791.n2.nabble.com/FS-2-1KHz-8-Pole-Filter-to-suit-Elecraft-K3-tp7498724p7499666.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 Stand Screw Size
If there are any manuals that you do not have, just go to the Elecraft website and download whichever one you are interested in. 73, Don W3FPR On 4/25/2012 11:00 AM, Rick Lloyd wrote: Thanks for the replies, The K1 manual doesn't mention the side bolt, as I could tell. But I was sure someone had a KST2 manual. I'm good to go, now. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 KPA500
I used to do something similar to drive an amplifier from my K2 (before the 100W amp stage for it) came out. It complicates t/r switching, making CW QSK or VOX more difficult. I tried to solve this with an external set of fast relays around both amplifiers, but the large amount of gain from the cascaded amplifiers caused instability. You do not want this particular problem, believe me! You also need an extra bandswitch for the intermediate amplifier. And I suspect that the K3 - KPA500 integration would be upset, since the K3 wouldn't know about the intermediate amplifier. I think it would definitely be worth the extra money to get the 100-watt K3. On 4/25/2012 5:47 AM, artus wrote: Folks, I am contemplating a new K3 rig to replace my K2. I have seen posts regarding the drive necessary for the KPA500 and it looks like the 10 watt K3 doesn't quite have enough. Currently I use my K2 with a Granberg AN762 brick amp and LPFs. I wonder if anyone has played with or has comments about the viability and advisability of a 10W K3 == AN762 ==KPA500 arrangement. I know 6 meters may not work well and I don't know about signal quality degradation versus a direct 100W K3 ==KPA500 arrangement. Thanks. 73, Jack (W0FNQ) -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-KPA500-tp7499254p7499254.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html -- Vic, K2VCO Fresno CA http://www.qsl.net/k2vco/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] BNC's
I've used BNC for everything for years. Even have them on Bird watt meters, my K3 and the sensors for my W2. As has already been pointed out, they're really N's, and adequate for legal amateur power levels. I also have a good selection of Pomona patch cords. Very convenient. 73! Ken - K0PP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Elecraft Digest, Vol 96, Issue 41
Direct your complaint to QST. Bob, K9PAG __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Regarding KAT500 current drain
No. We do not recommend powering this number of devices form the K3 AUX 12v conn. Eric --- www.elecraft.com On 4/24/2012 7:58 PM, Rick Bates wrote: So we could expect that a newly mod'ed K3 12VDC output can supply the P3, 6M pre-amp and the KAT500 combined? One switch (K3) to control them all (precious). ;-) Rick wa6nhc -Original Message- From: Wayne Burdick Just to clarify an earlier topic: The KAT500 will draw well under 1 amp under any normal circumstances. Our engineering team may discover a way to make it draw over 1 amp for entertainment purposes, but our target for the average case is about 500 mA. Wayne N6KR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Regarding KAT500 current drain
I think we need a device that powers a number of 12 vdc devices triggered by the 12 v coming out of the K3. However one way is to get the rigrunner 12v strip that has a current sensor in one of the ports which turns on the rest of the ports...and plug the K3 into that current sensing port. Sent from my iPad On Apr 25, 2012, at 11:52 AM, Eric Swartz - WA6HHQ, Elecraft e...@elecraft.com wrote: No. We do not recommend powering this number of devices form the K3 AUX 12v conn. Eric --- www.elecraft.com On 4/24/2012 7:58 PM, Rick Bates wrote: So we could expect that a newly mod'ed K3 12VDC output can supply the P3, 6M pre-amp and the KAT500 combined? One switch (K3) to control them all (precious). ;-) Rick wa6nhc -Original Message- From: Wayne Burdick Just to clarify an earlier topic: The KAT500 will draw well under 1 amp under any normal circumstances. Our engineering team may discover a way to make it draw over 1 amp for entertainment purposes, but our target for the average case is about 500 mA. Wayne N6KR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 KPA500
The K3 plus the KPA500 has all the slick integration going for it. Behind all that is all the time and battle-testing of the combo. You start with an unknown element in the middle and you lose all of the field experience and fine-tuning of the firmware that came with the experience. Plus at twenty-something watts to the KPA500, everything in the K3 is loafing. 73, Guy. On Wed, Apr 25, 2012 at 8:47 AM, artus 9ar...@gmail.com wrote: Folks, I am contemplating a new K3 rig to replace my K2. I have seen posts regarding the drive necessary for the KPA500 and it looks like the 10 watt K3 doesn't quite have enough. Currently I use my K2 with a Granberg AN762 brick amp and LPFs. I wonder if anyone has played with or has comments about the viability and advisability of a 10W K3 == AN762 ==KPA500 arrangement. I know 6 meters may not work well and I don't know about signal quality degradation versus a direct 100W K3 ==KPA500 arrangement. Thanks. 73, Jack (W0FNQ) -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-KPA500-tp7499254p7499254.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Elecraft Digest, Vol 96, Issue 41
Direct your complaint to QST. ??? 73, Bob, WB4SON On Wed, Apr 25, 2012 at 12:23 PM, BOB PHILBROOK k9...@msn.com wrote: Direct your complaint to QST. Bob, K9PAG __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] New KAT500 pics from the Visalia DX convention
I assume all you have read this thread so not going to repeat all prior e-mail in my post. First off only place you will find PL259/SO239 UHF connectors is on ham, CB and some marine radio equipment made today. Commercial radios long have gone to other connectors with N-connectors being favored for VHF+ site located systems. Mobiles and HT's have a variety of connectors from BNC, TNC, mini-UHF, RCA-phono (gawd awful), sma and a whole host of tiny specialty connectors used on wireless stuff, smart phones, etc. In my professional life I moved most cabling to either N or BNC vs UHF. This was for reliability. BNC were normally used on RG-58 cable jumpers and lower power stuff where measurements were frequent requiring cable removal. The use of pliers to tighten connectors had gotten too many folks in trouble due to super mechanic mentality that if tight is good tighter is better. Sorry these are not water or gas lines. If you use a plier to tighten only rotate 1/8 turn beyond finger-tight. I can see wanting to do this on antenna connections or mobile installations where vibration is possible. Use of heat-shrink over the connector will result in longer reliability (also because it is now wx tight). BTW I have measured improvement of half a dB at VHF+ by proper tightening of N connectors. At HF this is probably not even noticed but on receivers at UHF it will make a difference. Sma connectors are particularly susceptible to inadequate tightening but again should only be tightened with a sma wrench with 1/8 turn or by proper torque wrench according to the mfr's specs. Sma do not like repeated removal and installation so be careful with that. I find the threads in N connectors wear if removed too much and work much better the first or few times. Impedance match on low noise preamps is critical so many hams are moving to use of either N or sma connectors over BNC. I have not seen a UHF on a preamp since the 1960's. Finally, my highest connector failure is with UHF on RG-58 size cable. I really dislike the critters for that. Crimp-style connectors also seem to have a higher failure if they are cables that are repeatedly removed (esp BNC). So that is my two-cents on the topic. 73, Ed - KL7UW, WD2XSH/45 == BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 50-1.1kw?, 144-1.4kw, 432-QRT, 1296-?, 3400-? DUBUS Magazine USA Rep dubus...@gmail.com Kits made by KL7UW http://www.kl7uw.com/kits.htm == __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Regarding KAT500 current drain
However one way is to get the rigrunner 12v strip that has a current sensor in one of the ports which turns on the rest of the ports...and plug the K3 into that current sensing port. If you do that, *do not* power any accessory that handles audio going to the transceiver mic or line inputs from the auxiliary power strip. Doing so will result in RFI as transceiver return current finds its way back to the power strip through the accessories and in turn pumps the ground (power supply) reference for those accessories. When using an auxiliary power strip it is absolutely impossible to provide a zero Ohm return for the transceiver's primary power supply and return current *will* divide among the multiple returns (some via accessories). If one has 12V accessories and a 12V transceiver, the accessories should always be powered from an auxiliary output on the transceiver *or* from a *completely isolated* power supply. *Never* connect accessories to the same supply as the transceiver. Kenwood have recognized this issue for years; all of the instruction manuals for their 12V transceivers recommends using a separate power supply for TNCs and Terminal Units. While Kenwood references noise pickup the real reason is to avoid noise coupling via the power supply return. 73, ... Joe, W4TV On 4/25/2012 1:00 PM, hawley, charles j jr wrote: I think we need a device that powers a number of 12 vdc devices triggered by the 12 v coming out of the K3. However one way is to get the rigrunner 12v strip that has a current sensor in one of the ports which turns on the rest of the ports...and plug the K3 into that current sensing port. Sent from my iPad On Apr 25, 2012, at 11:52 AM, Eric Swartz - WA6HHQ, Elecrafte...@elecraft.com wrote: No. We do not recommend powering this number of devices form the K3 AUX 12v conn. Eric --- www.elecraft.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Looking for a used buddipole
Anyone have one of these available? I have been looking around for the best portable antenna to use that I can transport on a motorcycle. I won't always be going places where trees would be available so it needs to be self-contained. This seems to be the best option for me with the KX3. Thanks. 73 Greg AB7R __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Ultimate Station Control Requirements Wish List
I am compiling a product development requirements document for a consortium of companies that intends to develop, manufacture and market the ULITMATE Ham Radio Station Control System. If you would like to have an expandable station control system to select TX and RX antennas, SO2R, , have more than one radio share TX and RX Antennas, switch Audio In, Audio Out, Keying Leads, distribute 12 and 24 volt DC and most any and all other functions to make your station the ultimate in flexibility and control using mouse clicks, touch screen push buttons and custom assignable labels what would your wish list contain? The system will consist of a common mounting shelf that will house plug in card modules. To expand or add additional functions the user will simply purchase function cards, plug them in the shelf, make plug in connections and set configuration options. If you care to participate, I would appreciate receiving a Bullet Type Wish List e-mail with your list. At this point, I don't need details, simply a Wish List (Examples) * Up to 10 TX Antennas shared with 2 radios * Up to 8 RX Antennas share with 2 radios * Control of current off the shelf remote coax switches * Remote relays over Blue Tooth or 802.11, RS-232 and/or cable pairs * Be able to use K-3 or XYZ Radio to drive a KPA 500 or any other amplifier with a touch of a button or mouse click to switch Amp In, Audio/Key/ALC * Have Lock Out if a particular antenna is selected - Ant 1 for TX and Ant 2 for RX, etc. * One button change from SO1R to SO2R * Switch one set of paddles to two different keyers * Key two radios at the same time * What else? There is virtually no end to what the wish list may contain but please be realistic in what you would consider useful and you would consider purchasing if it fit your needs and the price was right... Thanks 73, Jack __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] looking for a open source waterfall/pabadepter display for the KX3. any ideas
__ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] looking for a open source waterfall/pabadepter display for the KX3. any ideas
Hi, looking for a open source waterfall/pabadepter display for the KX3. any ideas Haven't gotten my kx3 yet so can't say for sure that the following will work but most likely: - quisk (win/linux/mac; http://james.ahlstrom.name/quisk/; not sure if rig control works). It takes general I/Q in and can make the waterfall etc. - kcomm ( http://www.g4ilo.com/kcomm.html; supports win linux but should also compile on macs; supports k3 rig control which should work with kx3). This has waterfall display among other things. I am sure there are others (windoze only) but don't know much about them... some might even run under wine on other platforms. I recall that there is a list of useful software on Elecraft web pages somewhere. Jussi Eloranta AA6KJ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] New KAT500 pics from the Visalia DX convention
On 4/25/2012 10:50 AM, Edward R. Cole wrote: Impedance match on low noise preamps is critical NO preamp is going to notice the difference between 1.000 and 1.05. More to the point, I suggest that you MEASURE the input Z of these preamps and find out how close they actually are to their nominal value. I suspect you will find variations on the order of 25% or more. so many hams are moving to use of either N or sma connectors over BNC. I have not seen a UHF on a preamp since the 1960's. Ed, Everything you have cited regarding N-connectors is simply a matter of folks having drunk the Kool-Aid. Just because everyone believes it doesn't make it true, and everyone does it can be a matter of monkey see, monkey do. . Two major reasons for using SMAs and BNCs is that they have a smaller footprint on a panel, which is a big deal with today's more compact equipment. Your comments re: the importance of keeping connectors tight is right on target. Recently I've been hearing that the DIN connectors for hard line are greatly superior, and if I were living in the UHF world and had professional dollars to spend I'd probably use them. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K1 Stand Screw Size
You might want to download the instructions for the KTS1 stand. Looking at my parts inventory sheet for my KTS1, it looks like its a 10-32 1/2 inch long. 73 Barry K8QI -- View this message in context: http://elecraft.365791.n2.nabble.com/K1-Stand-Screw-Size-tp7499280p7500658.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] looking for a open source waterfall/pabadepter display for the KX3. any ideas
I think I would try PowerSDR-IQ. It has all sorts of handy capabilities. It will take the I and Q data from any source. There is a DLL that will allow it to interface with the K3. Therefore, I'm guessing that it should work with the KX3. 73, Barry K3NDM On 4/25/2012 3:42 PM, Jussi Eloranta wrote: Hi, looking for a open source waterfall/pabadepter display for the KX3. any ideas Haven't gotten my kx3 yet so can't say for sure that the following will work but most likely: - quisk (win/linux/mac; http://james.ahlstrom.name/quisk/; not sure if rig control works). It takes general I/Q in and can make the waterfall etc. - kcomm ( http://www.g4ilo.com/kcomm.html; supports win linux but should also compile on macs; supports k3 rig control which should work with kx3). This has waterfall display among other things. I am sure there are others (windoze only) but don't know much about them... some might even run under wine on other platforms. I recall that there is a list of useful software on Elecraft web pages somewhere. Jussi Eloranta AA6KJ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Regarding KAT500 current drain
But of course, you can power a relay from the K3 12V connector to control whatever you like! Eric Swartz - WA6HHQ, Elecraft wrote No. We do not recommend powering this number of devices form the K3 AUX 12v conn. - Richard - HB9ANM -- View this message in context: http://elecraft.365791.n2.nabble.com/Regarding-KAT500-current-drain-tp7498088p7500674.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] looking for a open source waterfall/pabadepter display for the KX3. any ideas
Actually NaP3 works better and removes a lot of the clutter from the Flex origins of PSDR-IQ, and it is still being improved. It was written for the K3, but will work with th eKX3 with a few exceptions. Take a look at the LP-Pan Yahoo group for a lot more discussion. 73, Don W3FPR On 4/25/2012 4:03 PM, Barry LaZar wrote: I think I would try PowerSDR-IQ. It has all sorts of handy capabilities. It will take the I and Q data from any source. There is a DLL that will allow it to interface with the K3. Therefore, I'm guessing that it should work with the KX3. 73, Barry K3NDM On 4/25/2012 3:42 PM, Jussi Eloranta wrote: Hi, looking for a open source waterfall/pabadepter display for the KX3. any ideas Haven't gotten my kx3 yet so can't say for sure that the following will work but most likely: - quisk (win/linux/mac; http://james.ahlstrom.name/quisk/; not sure if rig control works). It takes general I/Q in and can make the waterfall etc. - kcomm ( http://www.g4ilo.com/kcomm.html; supports win linux but should also compile on macs; supports k3 rig control which should work with kx3). This has waterfall display among other things. I am sure there are others (windoze only) but don't know much about them... some might even run under wine on other platforms. I recall that there is a list of useful software on Elecraft web pages somewhere. Jussi Eloranta AA6KJ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] looking for a open source waterfall/pabadepter display for the KX3. any ideas
On Wed, Apr 25, 2012 at 2:42 PM, Jussi Eloranta jmelora...@gmail.comwrote: ...- quisk...- kcomm... === In addition to the Linux programs that Jussi mentions there is at least one open-source for Windows that I can think of, SDR# (http://sdrsharp.com/). I haven't used it but it has gotten good commentary from those who have. good luck, Tony KT0NY -- http://www.isb.edu/faculty/facultydir.aspx?ddlFaculty=352 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Regarding KAT500 current drain
That was my first thought actually, but I am using the RR strip right now. Maybe we need an empty box about the size of the tuner box for the home brew K3 custom accessory. Chuck, KE9UW aka Jack, BMW Motorcycles From: elecraft-boun...@mailman.qth.net [elecraft-boun...@mailman.qth.net] on behalf of Richard Squire - HB9ANM [hb9...@bluewin.ch] Sent: Wednesday, April 25, 2012 3:10 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Regarding KAT500 current drain But of course, you can power a relay from the K3 12V connector to control whatever you like! Eric Swartz - WA6HHQ, Elecraft wrote No. We do not recommend powering this number of devices form the K3 AUX 12v conn. - Richard - HB9ANM -- View this message in context: http://elecraft.365791.n2.nabble.com/Regarding-KAT500-current-drain-tp7498088p7500674.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] txinh timing??
I've looked but can't find the spec on how long after after initiating TXINH is the K3 transmitter at zero power? (I'm working on an so2r interface which can take away an antenna from the low priority rig even if it was transmitting. ) It looks like the TXINH is a polled input and may be a bit a slow for my application. Mark n2qt __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] High Sierra in qst
Eric, Group - I own a High Sierra screwdriver antenna purchased in 2001 and used portable on the back of my RV all around the US and Canada. The antenna has needed several new contact springs, but has provided reliable service given regular maintenance. However, my experience with Jim and with High Sierra customer service has been consistently poor. No customer service by phone, emails unanswered. I have found Jim to be arrogant, offensive and unhelpful. This is a strong statement, but it accurately reflects my experience. My unit has served me well but I would not consider buying another antenna from this company. K4KGG, Larry __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] calibrating bfo/dds kx1
I have a minor query on calibrating the dds on a kx1. I have followed the instruction manual and selected a strong sw am station. After adjusting the bfo to -.07 both sidebands are identical, next I tuned to the frequency the station is transmitted on. Using dds I adjusted one of the sidebands to sound correct at that frequency, it was dds = 10. Now according to the manual that's it, but when I selected between lsb and usb at that same frequency the sidebands appear different? I would have thought they should be the same. What did I do wrong, any kx1 dds bfo wizards out there? I'm not sure how the adjustments interact. 73, Ian MM0GYX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] calibrating bfo/dds kx1
Ian, I suspect that you were depending on your ears when you set the BFO, and you ended up a bit off. I use WWV here because they transmit well defined tones - I also use Spectrogram (you can use just about any audio spectrum analyzer) to display the tone frequencies so that I can be certain I have tuned them correctly. It sounds like you did it right, so go back to the BFO part of the procedure. You can either start over with the parameter set to zero, or you can see how much frequency difference there is with the current settings and either add or subtract from the current setting. There is really no interaction, but the BFO setting must be correct before setting the DDS. 73, Don W3FPR On 4/25/2012 5:26 PM, Ian Watson wrote: I have a minor query on calibrating the dds on a kx1. I have followed the instruction manual and selected a strong sw am station. After adjusting the bfo to -.07 both sidebands are identical, next I tuned to the frequency the station is transmitted on. Using dds I adjusted one of the sidebands to sound correct at that frequency, it was dds = 10. Now according to the manual that's it, but when I selected between lsb and usb at that same frequency the sidebands appear different? I would have thought they should be the same. What did I do wrong, any kx1 dds bfo wizards out there? I'm not sure how the adjustments interact. 73, Ian MM0GYX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] New KAT500 pics from the Visalia DX convention BNC and Bad cables (Morphed)
Not to claim to be some super operator or know it all... This is the safest way to keep track of bad cables. I have a few waiting for new ends. And Don's last paragraph makes great sense. Modified equipment has less value. I want the wife to get all she can out of my equipment when I die while running (not in the shack on my PC and HR). 73, Bill K9YEQ -Original Message- ... I do keep a constant check on the BNC connectors - if the shield escapes the clamp, or the center conductor is pulled back, I discard the cable, or simply cut off the offending cable end so I know to repair it later. For those with more permanent stations, I would highly recommend sticking with theUHF connectors or using UHF to BNC adapters rather than modifying your equipment. Just my humble opinion. 73, Don W3FPR On 4/24/2012 10:37 PM, Craig Smith wrote: I installed the Oak Hills BNC connectors in my K3 during the initial build 5 years ago. Great decision. Much more convenient and allows for rapid cable changes. Everything in my shack and antenna runs has been standardized with BNCs. 73 Craig AC0DS __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] MAC KX3 utility
got it to work BUT now, even when i clicked on 'versions now' (firmware tab) the 'available' stats is 'missing' and yes, i do have connectivity and no firewall check for new On 12-04-25 12:23 AM, David Fleming wrote: Also, if Fusion is still running, you will need to disconnect the USB/Serial adapter from the Windows virtual session. Else, OS X will not see it. David, W4SMT --- On Wed, 4/25/12, David Flemingdf...@yahoo.com wrote: From: David Flemingdf...@yahoo.com Subject: Re: [Elecraft] MAC KX3 utility To: Elecraft reflectorelecraft@mailman.qth.net Cc: va3...@gmail.com Date: Wednesday, April 25, 2012, 12:08 AM Robert, If you are seeing only the bluetooth ports, then the USB/Serial driver is either too old or not installed properly on Snow Leopard. What type of USB/Serial adapter are you using? If it is a Prolific based device, you will need to install the most current driver. This one: http://w4smt.com/KX3/md_PL2303_MacOSX10.6_dmg_v1.4.0.zip If it is a FTDI based device, install this one: http://w4smt.com/KX3/FTDIUSBSerialDriver_v2_2_17.dmg This should solve the problem. David, W4SMT --- On Tue, 4/24/12, Robert Galambosva3...@gmail.com wrote: From: Robert Galambosva3...@gmail.com Subject: [Elecraft] MAC KX3 utility To: elecraft@mailman.qth.net Date: Tuesday, April 24, 2012, 11:52 PM tried the mac version of the KX3 utility. it did not work and here is the senerio. i have fusion. running windows 7 i have no problem connecting to the utility. it recognizes the USB driver ( in my case COM3) update firmware etc works so now after installing the USB driver on the mac side, the error message comes back KX3 not responding when i test the connection. in this case i only have two Bluetooth port options aand niether work. running snow leopard __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Connectors
(Changing to a more descriptive Subject line) 1. One nice thing about female BNC connectors is that they are compatible with male type-N connectors. Try it - they plug right in. Of course, there is no locking mechanism, so it wouldn't be good for something like a mobile installation, but otherwise it works fine and saves an adapter. 2. One advantage that BNC and N have over UHF is that the ground connection doesn't depend on the shell being properly tightened. 3. I've had excellent reliability from UHF plugs as long as I pre-tin the coax braid and solder it through the holes. That's true both with RG-8 type cable as well as the smaller RF-58 with the adapter. 4. Regarding RF loss in UHF connectors, it isn't as bad as many people think. I did an Internet search and found the Usenet posting I made on the subject about 20 (!) years ago: From: ... (Alan Bloom) Date: Fri, 18 Sep 1992 23:03:13 GMT Subject: The Truth about UHF Connectors Organization: Hewlett-Packard, Santa Rosa, CA Newsgroups: rec.radio.amateur.misc Ya gotta feel sorry for UHF connectors. Recent strings on this notes group lambasted them as worthless at VHF and above, and barely tolerable at HF. One poster called them 5 dB attenuators, and many agreed that there must be some sort of conspiracy among ham equipment manufacturers to inflict such garbage connectors on the amateur community. Today I finally remembered to bring some UHF adapters from home so I could do some relative measurements of UHF versus type-N. As expected, the type-N showed lower insertion loss at high frequencies, but the UHF connectors were hardly 5 dB attenuators. For the test I connected an HP8753 RF network analyzer through two short BNC cables into the following arrangement: _________ | | | BNC female | | N female- | | N male to | | | __| 10 dB |__| to N male |__| N female |__| BNC female |__| 10 dB |__ | Atten.| | adapter| | adapter | | adapter| | Atten.| |___| || |___| || |___| Then I repeated the measurement with the N adapters replaced with UHF. I normalized the measurements by replacing the 3 adapters with a BNC double-female. (That is, this was assumed to have 0 dB loss.) Since two N or UHF adapters were used, I assume the loss per connector is half the total. The vertical scale was .1 dB/division, so I estimated the insertion loss to the nearest .01 dB or so: - Type N -- UHF -- FREQ (MHz) TOTAL LOSS PER CONNECTOR TOTAL LOSS PER CONNECTOR 1.8 0 dB 0 dB 0 dB 0 dB 30 0 00 0 100 0 00 0 150 0 00.02 0.01 200 0 00.03 0.015 450 0 00.18 0.09 600 0 00.26 0.13 900 0 00.66 0.33 10000.05 0.0250.80.4 13000.10.05 0.86 0.43 16000.05 0.0250.50.25 20000.05 0.0250.02 0.01 Insertion loss increases until about 1300 MHz, and then starts to decrease until it is almost zero for the UHF connector at 2 GHz! At that frequency, the connectors are about 1/4 wave long (1 inch, assuming .66 velocity factor), so I assume that the two adapters are providing a conjugate match to each other. This confirms my assumption that the insertion loss is due to reflections (impedance mismatch), not absorption (true power loss). Bottom line: UHF connectors work fine through the VHF range, and are not too bad even on the 420 MHz band if you can stand about .1 dB mismatch loss per connector. By the way, I did not do the full 2-port calibration on the HP8753, so there was a couple hundredth's dB ripple in the plots. I averaged this out by eye to come up with the numbers in the above chart. AL N1AL P.S. Sorry, I guess I violated the Usenet rule against posting objective data... :=) On Wed, 2012-04-25 at 09:50 -0800, Edward R. Cole wrote: I assume all you have read this thread so not going to repeat all prior e-mail in my post. First off only place you will find PL259/SO239 UHF connectors is on ham, CB and some marine radio equipment made today. Commercial radios long have gone to other connectors with N-connectors being favored for VHF+ site located systems. Mobiles and HT's have a variety of connectors from BNC, TNC, mini-UHF, RCA-phono (gawd awful), sma and a whole host of tiny specialty connectors used on wireless stuff, smart phones, etc. In my professional life I moved most cabling to either N or BNC vs UHF. This was for reliability. BNC were normally used on RG-58 cable jumpers and lower power stuff where measurements were frequent requiring cable removal. The use
Re: [Elecraft] Connectors
Al, Great information! Yes, I can agree that properly tightened UHF connectors do not inflict much loss. I think the main problem has been with inadequate tightening - as you pointed out the shield connection requires that that UHF connectors be tight. How many hams wiggle the PL-259 connector a bit to be certain it is seated in the notch of the SO-239 - this is not a casual connector for making quick connections and disconnections. Where am I going with this - well, with the KPA100, we have long recommended disconnect the antenna when not in use to protect the wattmeter diodes from static damage. While this is a good concept, the literal interpretation of that statement may actually inflict damage because of the way the UHF connector connects. With a PL-259, the center conductor is what makes contact first - if there is a static charge on that feedline, that charge will be transferred to your equipment without a chance to bleed it off - the only way to prevent that is to either short across the feedline (if there is a ground connection for the shield) or some other means should be used to bleed off the charge before attaching a feedline with a PL-259 connector to any equipment. Type N and BNC do not have this problem - the shell makes contact first. On 4/25/2012 7:09 PM, Alan Bloom wrote: (Changing to a more descriptive Subject line) 4. Regarding RF loss in UHF connectors, it isn't as bad as many people think. I did an Internet search and found the Usenet posting I made on the subject about 20 (!) years ago: __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Connectors
On Wed, Apr 25, 2012 at 6:09 PM, Alan Bloom n...@sonic.net wrote: ...Sorry, I guess I violated the Usenet rule against posting objective data... Ah, Alan, you are a repeat offender. However, do not feel bad. Contrary to what you may have heard, recently certain philosophers have concluded that objective data is not always bad. They argue that it is in fact one of the four basic categories of acceptable standards of proof: 1. proof by handwaving/buzzword invocation/TABLE-POUNDING 2. proof by appeal to authority/expertise/experience/common sense/universal knowledge 3. proof by mathematical or other rigorous analysis 4. proof by experimental data All the above have their adherents and detractors, all are in wide use, and all have their moments in the sun on the internet. 73, Tony KT0NY __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] MAC KX3 utility
Try clicking the Copy files from Elecraft button to get the missing files from the Elecraft file server. There may be a troubleshooting section in Help on Missing files. Dick, K6KR -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Robert Galambos Sent: Wednesday, April 25, 2012 3:28 PM To: df...@yahoo.com Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] MAC KX3 utility got it to work BUT now, even when i clicked on 'versions now' (firmware tab) the 'available' stats is 'missing' and yes, i do have connectivity and no firewall check for new On 12-04-25 12:23 AM, David Fleming wrote: Also, if Fusion is still running, you will need to disconnect the USB/Serial adapter from the Windows virtual session. Else, OS X will not see it. David, W4SMT --- On Wed, 4/25/12, David Flemingdf...@yahoo.com wrote: From: David Flemingdf...@yahoo.com Subject: Re: [Elecraft] MAC KX3 utility To: Elecraft reflectorelecraft@mailman.qth.net Cc: va3...@gmail.com Date: Wednesday, April 25, 2012, 12:08 AM Robert, If you are seeing only the bluetooth ports, then the USB/Serial driver is either too old or not installed properly on Snow Leopard. What type of USB/Serial adapter are you using? If it is a Prolific based device, you will need to install the most current driver. This one: http://w4smt.com/KX3/md_PL2303_MacOSX10.6_dmg_v1.4.0.zip If it is a FTDI based device, install this one: http://w4smt.com/KX3/FTDIUSBSerialDriver_v2_2_17.dmg This should solve the problem. David, W4SMT --- On Tue, 4/24/12, Robert Galambosva3...@gmail.com wrote: From: Robert Galambosva3...@gmail.com Subject: [Elecraft] MAC KX3 utility To: elecraft@mailman.qth.net Date: Tuesday, April 24, 2012, 11:52 PM tried the mac version of the KX3 utility. it did not work and here is the senerio. i have fusion. running windows 7 i have no problem connecting to the utility. it recognizes the USB driver ( in my case COM3) update firmware etc works so now after installing the USB driver on the mac side, the error message comes back KX3 not responding when i test the connection. in this case i only have two Bluetooth port options aand niether work. running snow leopard __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] OT brain trust question
My 10-year old grandson wants to build a robot. Who makes good robot kits that we can build together? Please answer off list to avoid annoying everyone! -- Vic, K2VCO Fresno CA http://www.qsl.net/k2vco/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Connectors
Tony, you forgot one, there's 5. Proof by Powerpoint. 73, Fred K6DGW - Northern California Contest Club - CU in the 2012 Cal QSO Party 6-7 Oct 2012 - www.cqp.org On 4/25/2012 4:55 PM, Tony Estep wrote: Ah, Alan, you are a repeat offender. However, do not feel bad. Contrary to what you may have heard, recently certain philosophers have concluded that objective data is not always bad. They argue that it is in fact one of the four basic categories of acceptable standards of proof: 1. proof by handwaving/buzzword invocation/TABLE-POUNDING 2. proof by appeal to authority/expertise/experience/common sense/universal knowledge 3. proof by mathematical or other rigorous analysis 4. proof by experimental data __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Connectors
...just because there's no data, it doesn't mean you're wrong Einstein (probably) Sent from my iPad On Apr 25, 2012, at 8:47 PM, Fred Jensen k6...@foothill.net wrote: Tony, you forgot one, there's 5. Proof by Powerpoint. 73, Fred K6DGW - Northern California Contest Club - CU in the 2012 Cal QSO Party 6-7 Oct 2012 - www.cqp.org On 4/25/2012 4:55 PM, Tony Estep wrote: Ah, Alan, you are a repeat offender. However, do not feel bad. Contrary to what you may have heard, recently certain philosophers have concluded that objective data is not always bad. They argue that it is in fact one of the four basic categories of acceptable standards of proof: 1. proof by handwaving/buzzword invocation/TABLE-POUNDING 2. proof by appeal to authority/expertise/experience/common sense/universal knowledge 3. proof by mathematical or other rigorous analysis 4. proof by experimental data __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Connectors
This compares well enough with my measurements... http://www.hamradio.me/graphs/connectors/UHFConnectorGraphs/Mismatch-Loss_1000.png http://www.hamradio.me/graphs/connectors/UHFConnectorGraphs/Insertion-Loss_S21_1000.png Some of the longer UHF barrels show the repeating characteristic you observed which I assume is when the different transmission line is about 1/2 wavelength long. John, kx4o On 4/25/12 7:09 PM, Alan Bloom wrote: Since two N or UHF adapters were used, I assume the loss per connector is half the total. The vertical scale was .1 dB/division, so I estimated the insertion loss to the nearest .01 dB or so: - Type N -- UHF -- FREQ (MHz) TOTAL LOSS PER CONNECTOR TOTAL LOSS PER CONNECTOR 1.8 0 dB 0 dB 0 dB 0 dB 30 0 00 0 100 0 00 0 150 0 00.02 0.01 200 0 00.03 0.015 450 0 00.18 0.09 600 0 00.26 0.13 900 0 00.66 0.33 10000.05 0.0250.80.4 13000.10.05 0.86 0.43 16000.05 0.0250.50.25 20000.05 0.0250.02 0.01 Insertion loss increases until about 1300 MHz, and then starts to decrease until it is almost zero for the UHF connector at 2 GHz! At that frequency, the connectors are about 1/4 wave long (1 inch, assuming .66 velocity factor), so I assume that the two adapters are providing a conjugate match to each other. This confirms my assumption that the insertion loss is due to reflections (impedance mismatch), not absorption (true power loss). __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] looking for a open source waterfall/pabadepter display for the KX3. any ideas
You might be interested in my Cascata project. http://wa5znu.org/2011/07/cascata/ Leigh/WA5ZNU P.S. I'm also a quisk contributor. -- View this message in context: http://elecraft.365791.n2.nabble.com/looking-for-a-open-source-waterfall-pabadepter-display-for-the-KX3-any-ideas-tp7500564p7501505.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Connectors
On 4/25/2012 4:09 PM, Alan Bloom wrote: P.S. Sorry, I guess I violated the Usenet rule against posting objective data... It should be noted that in an earlier post, I noted that I had measured the loss of 1300 ft of coax with characteristics like LMR400 that had been cut into 100 ft and 200 ft lengths for a DX trip. I noted that there were at least 25 PL259s and 13 Amphenol barrels in line, and that the loss at every frequency up to 500 MHz was less than the mfr's spec for the cable at that frequency. While I did not go to the extent of finding and measuring 1,300 ft of the same coax and subtracting out the loss, I submit that my measurements show that the loss in those 38 connectors is negligible to at least 500 MHz. And I also submit that not every small deviation from the ideal MATTERS in every real world conditions. Good engineering is making good choices for a given situation. The world does not need the $800 hammers demanded by certain military specs. Shouting down? Hardly -- when completely illogical arguments were presented as justification for a position I pointed them out. Also -- I don't trust the precision of loss measurements for very small losses -- there are two many factors that can pollute the measurement, and often the accuracy of the instrumentation is a significant.fraction of the result being measured. For example, try getting a good number for the loss of 100 ft of LMR400 at 1.8 MHz. You'd better be measuring at least 1,000 ft to get even 10% accuracy! Several years ago, a VE1 (RGB, I think) sent me data for measurements he had made of a sizable number of UHF connectors in a string. His numbers for loss in a single connector were significantly less than what Alan has posted. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Connectors
It's nice to have some fresh air amongst the smoke. Thanks Jim. I have been using UHF connectors for decades without a single problem, with the caveat that I purchase ONLY brand name (e.g.: Amphenol) connectors, take care to install them properly, and use them only once (reuse of connectors removed from other cables is not permitted in my station) . And yes, I do use type N fittings and other less common types (type C, 7/8 flange, etc.) for some work where appropriate. - Jim, KL7CC Jim Brown wrote: On 4/25/2012 4:09 PM, Alan Bloom wrote: P.S. Sorry, I guess I violated the Usenet rule against posting objective data... It should be noted that in an earlier post, I noted that I had measured the loss of 1300 ft of coax with characteristics like LMR400 that had been cut into 100 ft and 200 ft lengths for a DX trip. I noted that there were at least 25 PL259s and 13 Amphenol barrels in line, and that the loss at every frequency up to 500 MHz was less than the mfr's spec for the cable at that frequency. While I did not go to the extent of finding and measuring 1,300 ft of the same coax and subtracting out the loss, I submit that my measurements show that the loss in those 38 connectors is negligible to at least 500 MHz. And I also submit that not every small deviation from the ideal MATTERS in every real world conditions. Good engineering is making good choices for a given situation. The world does not need the $800 hammers demanded by certain military specs. Shouting down? Hardly -- when completely illogical arguments were presented as justification for a position I pointed them out. Also -- I don't trust the precision of loss measurements for very small losses -- there are two many factors that can pollute the measurement, and often the accuracy of the instrumentation is a significant.fraction of the result being measured. For example, try getting a good number for the loss of 100 ft of LMR400 at 1.8 MHz. You'd better be measuring at least 1,000 ft to get even 10% accuracy! Several years ago, a VE1 (RGB, I think) sent me data for measurements he had made of a sizable number of UHF connectors in a string. His numbers for loss in a single connector were significantly less than what Alan has posted. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] K3 and JT65
OK, I think this may have been discussed but I cannot find it. Seems like I remember a gain mod for the K3 line output Maybe it was something else but I wasn't interested at the time. I am trying to run JT65-HF for the first time and I find that even with the gain in the program at max that the input to the PC from the K3 line out is not enough except for the strongest signals. I have the gains in the PC set to 100% for all. HRD and DM780 for all of the digital modes works just fine. as it is. Thanks es 73, de Jim KG0KP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 and JT65
Jim, What do you have CONFIG:LIN OUT set to? I usually run it around 20. 73, ~iain / N6ML On Mon, Apr 23, 2012 at 11:20 PM, Jim Miller KG0KP jimmil...@stl-online.net wrote: OK, I think this may have been discussed but I cannot find it. Seems like I remember a gain mod for the K3 line output Maybe it was something else but I wasn't interested at the time. I am trying to run JT65-HF for the first time and I find that even with the gain in the program at max that the input to the PC from the K3 line out is not enough except for the strongest signals. I have the gains in the PC set to 100% for all. HRD and DM780 for all of the digital modes works just fine. as it is. Thanks es 73, de Jim KG0KP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] Help Please KIO2 L4 Burnt Out
Hi, My K2 rig control via a KIO2 stopped. I discovered that RF sub miniature choke L4, 100 micro Henry, on the main KIO2 board was open circuit - no evidence of excessive heat etc. L4 is in the RS232 ground path. Shorting out L4 restored rig control. I replaced L4 with a larger version (all that I could find locally) but rig control didn't work. I tested the new L4 and it was open circuit, again no evidence of excessive heat. So the question is, what would cause excessive current through L4? I feed the KIO2 via a USB to RS232 converter which plugs into a four port USB hub which plugs into a lap top. This combination has worked OK for several years. Mike VK1OO __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
