Re: [Elecraft] what am I doing wrong?
Gerald, Make *sure* you follow Tigertronic's setup procedures for the SignaLink. Pay special attention to the part about audio levels both input and output. For my SignaLink, my MIC gain is about 29 and LIN OUT is about 10 (it may vary from rig to rig). Compression is 0 (or off), but I *think* compression is unsettable in DATA A. Inside the SignaLink, my transmit jumper is strapped and my receive jumper is un-strapped. Do what Don said about putting it in test and set the ALC. Once you get that done, take it out of test. Don't do like me and leave it in test. ;) 73, Joel - W4JBB On 4/23/2012 11:13 PM, Don Wilhelm wrote: Gerald, Your SignaLink by default is plugged for Mic level output - and if you have the SignaLink line out cable connected to the K3 Line-in, you need to change a jumper to increase the audio out to line level (see the SignaLink instructions). Currently, you do not have enough audio coming into the K3. Whatever the situation with SignaLink and the K3 connections, you need to see 4 bars solid on the ALC scale with the 5th bar flickering. Set the K3 into TX TEST (no RF output) while you play with those level settings. Once you have achieved the correct audio drive levels, all should be downhill from there - adjust the power knob for the desired RF output power and make contacts. 73, Don W3FPR On 4/23/2012 11:57 PM, KC6CNN wrote: Ok, Let me start again, but this time from the computer. I have a Elecraft K3 and it is hooked up to a signalink. Going to my lap top which is running a older version of HRD. I decode PSK31 fine business. I am putting out about 25 watts and have yet to make a contact. I did name a contact on CW, but everything I try in PSK doesnt work. I check out what Don had told me and I do not have anything showing on the ALC in Data A mode. No matter if I turn up the line in gain or the tx knob on the signalink. My output meter shows 25 watts, but no alc. The compression is off. and I have the center marker set for 1500 on the software. agc is fast. atu in active, swr on 40 meters is 1.0 - 1 and am using fl1 2.8 as the transmit filter. hope this helps explain some, so I can try to figure this out. Thanks for all the replies and help. nice to have this reflector and a great bunch of hams on here. any and all ideals are greatly appreciated. Gerald - KC6CNN __ 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) WriteLog and MMTTY Question
Would someone who is using WriteLog and MMTTY contact me off list please? I am new to WriteLog and am having an issue with callsign capture. 73, Joel - W4JBB __ 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] Reminder: KX3 Tracking sheet - Deliveries this week
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 -- View this message in context: http://elecraft.365791.n2.nabble.com/Reminder-KX3-Tracking-sheet-Deliveries-this-week-tp7449680p7495463.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] Arlan RS60CF Headset
Is anyone using an Arlan Headset with boom mic with their K3? If so, which mic element are you using? How does it perform for DX and contests? If you aren't familiar with them, take a look here: http://www.arlancommunications.com/products/amateurRadio/radioSport/Headsets .asp Thanks, Pete, W1RM __ 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] KX3 ATU
Does anyone know what the capability/efficiency of the internal ATU is? Not talking about the wattage (its up to 20 I believe) but the tuning the SWR/range Looking at deploying a random wire/loop so I am wondering if I need a separate ATU or can the internal unit handle the range? Thanks Robert a 'kosher' ham Sent from my BlackBerry device __ 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] what am I doing wrong?
Gerald, That is great news, have fun and make lots of contacts. 73, Don W3FPR On 4/24/2012 1:17 AM, KC6CNN wrote: You Are the Man DON. Changed Jumper jp4 and got alc movement. Set it to 4 bars solid and the fith just blinking and got alc movement. Now to make a psk contact. Thank all of you for your help. Gerald - KC6CNN -- View this message in context: http://elecraft.365791.n2.nabble.com/what-am-I-doing-wrong-tp7493647p7494548.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] KX3 ATU
Robert, The matching range should be similar to that of the K3 ATU. The actual range can only be correctly expressed in terms of the inductance and capacitance ranges and the number of steps for each - the SWR that produces will vary from band to and will be least on the low frequencies and greatest on the higher bands. 73, Don W3FPR On 4/24/2012 8:50 AM, va3...@gmail.com wrote: Does anyone know what the capability/efficiency of the internal ATU is? Not talking about the wattage (its up to 20 I believe) but the tuning the SWR/range Looking at deploying a random wire/loop so I am wondering if I need a separate ATU or can the internal unit handle the range? Thanks Robert __ 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] XV144MDKT
Sebastian, Be careful - do not jump to conclusions. The older XV144 crystals were pretty close to the correct frequency. Then the manufacturer lost the design (I am not sure how that happened), and began shipping crystals that were a bit higher in frequency. Since things cannot go backwards to recover, the L19 addition was created to compensate for the new crystals. So bottom line, if you have an older XV144 and add L19, you will find the Local Oscillator frequency will be significantly lower than 116 MHz. Yes, the addition of L19 to the older crystal will allow you to pull it, but you will not be able to get the frequency high enough. 73, Don W3FPR On 4/23/2012 8:26 PM, Sebastian, W4AS wrote: I noticed this today, good for those who have older XV144s: Addition of L19 to the XV144 to allow pulling of osc. frequency. __ 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] Arlan RS60CF Headset
I have one and love it. Although expensive, it is the best headset I have used. I have the regular element just so that it is compatible with multiple rigs and it works just fine with the K3. I know folks also have the electret mic and that also works fine. They K3 can be setup to use almost anything. 73 Greg AB7R On 4/24/12, Peter Chamalian w...@arrl.net wrote: Is anyone using an Arlan Headset with boom mic with their K3? If so, which mic element are you using? How does it perform for DX and contests? If you aren't familiar with them, take a look here: http://www.arlancommunications.com/products/amateurRadio/radioSport/Headsets .asp Thanks, Pete, W1RM __ 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] Fwd: [FPqrp-L] QRP ARCI ACCESSIBILITY CHALLENGE-UPDATE
Thought this might interest some over here. It was Wayne's (very cool, I might add) idea, after all. I was talking to Gary, KB9ZUV, several weeks ago and he had a couple of great ideas for things he'd like to see in such a kit, and I agree with his ideas. Especially the tenna dipper, except with audible feedback instead of an LED. -- Buddy Brannan, KB5ELV - Erie, PA Phone: (814) 860-3194 or 888-75-BUDDY Begin forwarded message: From: ken evans w...@bellsouth.net Subject: [FPqrp-L] QRP ARCI ACCESSIBILITY CHALLENGE-UPDATE Date: April 24, 2012 10:00:35 AM EDT To: Flying Pigs fpqr...@fpqrp.org Reply-To: kenev...@kenevans.org QRP ARCI issued an Accessibility Challenge in January, 2012. It was announced in the Winter 2012 QQ, the club website (see http://fdim.qrparci.org/content/view/128/ ) and various QRP lists. The core of the challenge is for QRPers to create a kit that can be built by our visually impaired hams. The rules are found at the web site above. The intent was to make this a special category in the FDIM 2012 building contest. Entries would be on display at FDIM 2012 and a team of three judges would select the winning entries. Since issuing the challenge, we have received feedback from a number of sources stating that a four month timeline was overly optimistic to perform all the needed steps to develop such a kit. We have discussed various alternatives and have decided to extend the timeline. The rules will stand as initially stated, however this will be a special category at FDIM 2013. Thus giving a full year for the development and design effort. This extension will also give time to adequately publicize the challenge and insure a high level of participation. We apologize for our overly optimistic start. Form your design teams and heat up the irons. We look forward to seeing the results at FDIM 2013. Ken Evans, W4DU President - QRP ARCI *** Manage your FPqrp-L options at http://mail.fpqrp.org/mailman/listinfo/fpqrp-l_fpqrp.org *** __ 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] what am I doing wrong?
On Mon, Apr 23, 2012 at 10:57 PM, KC6CNN kc6...@gmail.com wrote: ...I have a Elecraft K3 and it is hooked up to a signalink. Take the Signalink out of the system. It adds nothing and something about its setup could be the problem. It's easy to do: just remove it and run the cables that went to the Signalink directly to the K3. Audio out from the computer goes to Line In, and Line out goes to the computer's mic in or line in. Before you try to transmit, do this: temporarily disconnect the cable coming from the computer's audio out so that sounds coming from the computer are audible on the computer's speakers. Then try to transmit. The K3 should go into transmit, but you should hear the warble coming out of the computer speakers. Note that the volume of this warble is controlled by the Windows speaker panel; to bring it up, right-click on the speaker icon at the right edge of the taskbar. Set it to be pretty loud. Now you know that the rig will go into transmit and that audio is being sent to it. This is exactly the same as the setup for SSB, so if you can talk on your K3, you can transmit PSK on it. Once you get to this point, just plug the audio cable back into the computer and tweak the levels as Don has described. Leave the Signalink out permanently. 73, 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] what am I doing wrong?
That is not the right solution, especially if one wants to use their computer's sound card for it's designated duties. I have a SignalLink and it was the easiest set up I've done for digital modes. Features I like that sound cards don't have... 1. Old fashioned Power on/off button 2. LED PTT Indicator 3. Old fashioned TX level adjustment knob. 4. Old fashioned RX level adjustment knob. 5. Old fashioned Delay adjustment knob. Don't throw your SignaLink away! Once you have it set up you can use the computer sound card for it's designated purpose(s). 73, Tom Amateur Radio Operator N5GE ARRL Lifetime Member QCWA Lifetime Member Farmers rotate crops to keep their land strong. Voters can keep THEIR LAND STRONG by rotating politicians at the ballot box each term. -- Otis Mukinfus -- http://www.otismukinfus.com On Tue, 24 Apr 2012 09:26:04 -0500, Tony Estep estept...@gmail.com wrote: On Mon, Apr 23, 2012 at 10:57 PM, KC6CNN kc6...@gmail.com wrote: ...I have a Elecraft K3 and it is hooked up to a signalink. Take the Signalink out of the system. It adds nothing and something about its setup could be the problem. It's easy to do: just remove it and run the cables that went to the Signalink directly to the K3. Audio out from the computer goes to Line In, and Line out goes to the computer's mic in or line in. Before you try to transmit, do this: temporarily disconnect the cable coming from the computer's audio out so that sounds coming from the computer are audible on the computer's speakers. Then try to transmit. The K3 should go into transmit, but you should hear the warble coming out of the computer speakers. Note that the volume of this warble is controlled by the Windows speaker panel; to bring it up, right-click on the speaker icon at the right edge of the taskbar. Set it to be pretty loud. Now you know that the rig will go into transmit and that audio is being sent to it. This is exactly the same as the setup for SSB, so if you can talk on your K3, you can transmit PSK on it. Once you get to this point, just plug the audio cable back into the computer and tweak the levels as Don has described. Leave the Signalink out permanently. 73, Tony KT0NY Amateur Radio Operator N5GE ARRL Lifetime Member QCWA Lifetime Member __ 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] KX3 production firmware update, rev 0.97 -- very important bug fix, better CW QSK, etc.
KX3 production firmware rev 0.97 (with DSP rev 0.84) is now available. It corrects a problem in the power-on/off sequence that could inadvertenly modify EEPROM locations (that is, operating parameters). It has other significant improvements as well. See recent release notes below. Please install this release on your KX3 as soon as possible. You'll need our KX3 Utility application to download and install firmware. For full instructions, refer to our KX3 software page: http://www.elecraft.com/KX3/KX3_software.htm Thanks, Wayne N6KR * * * MCU 0.97 / DSP 0.84, 4-23-2012 * EEPROM DATA INTEGRITY IMPROVED: Previously, in rare cases one or more EEPROM locations could be modified during power-on/off cycling. Symptoms included “ERR TXC” or “ERR TXS” messages, AGC turned off, etc. * REDUCED AUDIO KEYING ARTIFACTS in CW mode. This allows the use of full-break-in keying (QSK). The QSK icon will turn on when DLY is set to 0.00 in CW mode. * CW KEYER TEST/PRACTICE IMPROVEMENT: In CW mode, turning VOX OFF (i.e., selecting PTT CW) allows CW keyer testing or practice without transmitting a signal. Previously, current drain would still increase because PA bias was being turned on. Bias is now turned off in this case. * REDUCED VFO TUNING NOISE. Make sure VFO NR menu entry is set to ON. This menu entry now applies to ALL bands. * ACC2 IO menu entry now has both LO=PTT and HI=PTT options. The latter setting could be used with a computer’s RTS line (RS232 levels) to allow remote transmit control of the KX3. A 2.2 K or higher current- limiting resistor should be used in series with the ACC2 jack’s GPIO line in this case. __ 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] K2 intermittent problem
Did it with well aligned and checked K3 in CW mode plus external frequency counter. Transmit on K2, receive on K3 tuned to the same pitch as set in the menu. Then TX on the K3 RX on K2. TX frequency in both cases checked by the external counter. TX frequency is always higher then RX. The worst case is on 28 MHZ where it is 260 Hz. Do you have any ideas Don? 73, Igor UA9CDC - Original Message - From: Don Wilhelm w3...@embarqmail.com To: Igor Sokolov ua9...@gmail.com Cc: Elecraft Reflector elecraft@mailman.qth.net Sent: Monday, April 23, 2012 11:48 PM Subject: Re: [Elecraft] K2 intermittent problem Igor, What mode? How are you determining that the TX and RX frequencies are different? There should be no difference in SSB, and in CW the difference should be equal to the sidetone pitch. 73, Don W3FPR On 4/23/2012 1:23 PM, Igor Sokolov wrote: The problem was finally tracked down to X3,X4 crystals. Changing one of them (only one was found in a local shop) cured the intermittent frequency change. BFO frequency range is within the accepted limits (a bit more then 3.6 kHz). VFO linearization and CAL FIL is done. Now I have another problem. TX and RX frequencies do not coincide. The difference is band dependant. It is 30Hz on 80m and 260Hz on 28 MHz. Although the radio is usable with engaged RIT (OR XIT) I would like to cure the new problem. Can somebody root me in the right direction please 73, Igor UA9CDC __ 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] High Sierra in qst
Be careful...very bad experience with HIGH SIERRA advertising in QST If you don't change direction you WILL arrive exactly where you're headed!! Susan Meckley, Skipper W7KFI-mm AFA9SM USSV DHARMA __ 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
Haven't seen it in QST yet, but I've used mine a few times without mishap. They are a bit noisy when tuning: the mast amplifies the sound quite a bit - shouldn't be fitted to a wall or chimney joining to your neighbour's. What is your experience? David G3UNA - Original Message - From: ussv dharma ussvdha...@yahoo.com To: elecraft@mailman.qth.net Sent: Tuesday, April 24, 2012 4:31 PM Subject: [Elecraft] High Sierra in qst Be careful...very bad experience with HIGH SIERRA advertising in QST If you don't change direction you WILL arrive exactly where you're headed!! Susan Meckley, Skipper W7KFI-mm AFA9SM USSV DHARMA __ 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] KX3 ATU
Robert, I've found that the KX3 ATU loads up a 58' endfed wire just fine on all bands, but it can't load up everything. The 67' endfed wire I have (which, in theory, is very tough to load up) could be loaded up on 20 with the K1 ATU. The KX3 ATU can not handle it. So, for your loop, depending on the size, you may or may not have trouble depending on the length. For a closed loop I believe you want to avoid odd multiples of half wave lengths. If the possible length you have is pretty inflexible and the KX3 ATU can't handle it you can try inserting an insulator half way around making it an open loop. 73, Niel - W0VLZ KX3 #43 Message: 21 Date: Tue, 24 Apr 2012 12:50:28 + From:va3...@gmail.com Subject: [Elecraft] KX3 ATU To: Elecraftelecraft@mailman.qth.net Does anyone know what the capability/efficiency of the internal ATU is? Not talking about the wattage (its up to 20 I believe) but the tuning the SWR/range Looking at deploying a random wire/loop so I am wondering if I need a separate ATU or can the internal unit handle the range? Thanks Robert a 'kosher' ham Sent from my BlackBerry device __ 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] K2 intermittent problem
Igor, Did you receive the email I sent yesterday? The content is copied below: - I would suggest making another attempt with the K2 set to receive on the FL1 filter (the same filter as used for transmit). If you still have the shift between TX and RX, the problem is most likely in the way the the sidetone shift offset is being handled (Wayne would have to answer that situation, I do not have a clue to what goes on inside the firmware) However, if the shift is absent with that setup, you can solve the problem with the BFO settings for the filter. - 73, Don W3FPR On 4/24/2012 11:58 AM, Igor Sokolov wrote: Did it with well aligned and checked K3 in CW mode plus external frequency counter. Transmit on K2, receive on K3 tuned to the same pitch as set in the menu. Then TX on the K3 RX on K2. TX frequency in both cases checked by the external counter. TX frequency is always higher then RX. The worst case is on 28 MHZ where it is 260 Hz. Do you have any ideas Don? 73, Igor UA9CDC - Original Message - From: Don Wilhelmw3...@embarqmail.com To: Igor Sokolovua9...@gmail.com Cc: Elecraft Reflectorelecraft@mailman.qth.net Sent: Monday, April 23, 2012 11:48 PM Subject: Re: [Elecraft] K2 intermittent problem Igor, What mode? How are you determining that the TX and RX frequencies are different? There should be no difference in SSB, and in CW the difference should be equal to the sidetone pitch. 73, Don W3FPR On 4/23/2012 1:23 PM, Igor Sokolov wrote: The problem was finally tracked down to X3,X4 crystals. Changing one of them (only one was found in a local shop) cured the intermittent frequency change. BFO frequency range is within the accepted limits (a bit more then 3.6 kHz). VFO linearization and CAL FIL is done. Now I have another problem. TX and RX frequencies do not coincide. The difference is band dependant. It is 30Hz on 80m and 260Hz on 28 MHz. Although the radio is usable with engaged RIT (OR XIT) I would like to cure the new problem. Can somebody root me in the right direction please 73, Igor UA9CDC __ 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] K2 Instructional videos
Hi folks, I'm waiting for my K2 to arrive in a couple of days and was wondering if there are any instructional videos that cover all the functions of the K2. Steve W1SFR --- Steve Roberts (802) 779-7489 __ 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
I use the High Sierra Sidekick screwdriver antenna for my HF mobile. It is very reliable and works great. Excellent service from Jim at High Sierra too. 73, Eric WA6HHQ --- www.elecraft.com On 4/24/2012 10:54 AM, David Cutter wrote: Haven't seen it in QST yet, but I've used mine a few times without mishap. They are a bit noisy when tuning: the mast amplifies the sound quite a bit - shouldn't be fitted to a wall or chimney joining to your neighbour's. What is your experience? David G3UNA __ 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] Reminder: KX3 Tracking sheet - Deliveries this week
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] New version of K3 and KX3 Freq. Memory Editor available
We have a new version of our Frequency Memory Editor program that now supports both the K3 and KX3. See: http://www.elecraft.com/k2_remote.htm 73, 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] New KAT500 pics from the Visalia DX convention
New KAT500 pictures on our news page: http://www.elecraft.com/news.htm -- 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
Re: [Elecraft] Reminder: KX3 Tracking sheet - Deliveries this week
Hi Ed, I also am anxiously awaiting my KX3, and the news about the 2m module. However, I suspect the delay in shipping the kits is not related to the fact that some of us paid extra to have the units factory assembledmy guess is that Elecraft wants to make sure that there are no problems assembling the kits before they start shipping them out. And the best way to do this is for them to get some in-house experience to make sure everything goes together as planned. I am sure they will send out the orders when the feel comfortable filling them properly! GL and VY 73, Lance On 4/24/2012 6:42 PM, Edward R. Cole wrote: 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. -- Lance Collister, W7GJ (ex WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8, E51SIX, 3D2LR, 5W0GJ) P.O. Box 73 Frenchtown, MT 59834-0073 USA TEL: (406) 626-5728 QTH: DN27ub URL: http://www.bigskyspaces.com/w7gj Windows Messenger: w...@hotmail.com Skype: lanceW7GJ 2m DXCC #11/6m DXCC #815 Interested in 6m EME? Ask me about subscribing to the Magic Band EME email group, or just fill in the request box at the bottom of my web page (above)! __ 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
I use the High Sierra HS1800 Pro antenna with my K3 at the QTH (I live in a restricted neighborhood). It works flawlessly, can't be seen by the neighborhood HOA cops, and has low SWR across all bands. Not sure if the HS1800 is made anymore, but from my experience High Sierra is a good company. Steve, AI7AZ On Tue, Apr 24, 2012 at 11:40 AM, Eric Swartz - WA6HHQ, Elecraft e...@elecraft.com wrote: I use the High Sierra Sidekick screwdriver antenna for my HF mobile. It is very reliable and works great. Excellent service from Jim at High Sierra too. 73, Eric WA6HHQ --- www.elecraft.com On 4/24/2012 10:54 AM, David Cutter wrote: Haven't seen it in QST yet, but I've used mine a few times without mishap. They are a bit noisy when tuning: the mast amplifies the sound quite a bit - shouldn't be fitted to a wall or chimney joining to your neighbour's. What is your experience? David G3UNA __ 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] Changing the band that is installed
I recently purchased a used K1. It came with the original 2 band board - I think set for 40 and 20, and a 4 band board that has 40, 30, 20 and 15. I would really like to get it on 17. Could I rework the 2 band board with components to cover 17? Would they be available from Elecraft? Thanks Joe AF6NI -- View this message in context: http://elecraft.365791.n2.nabble.com/Changing-the-band-that-is-installed-tp7497153p7497153.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] New KAT500 pics from the Visalia DX convention
Eric, you know the drill. How much? When? From: Eric Swartz - WA6HHQ, Elecraft e...@elecraft.com To: Elecraft Reflector elecraft@mailman.qth.net Sent: Tue, April 24, 2012 1:50:57 PM Subject: [Elecraft] New KAT500 pics from the Visalia DX convention New KAT500 pictures on our news page: http://www.elecraft.com/news.htm -- 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 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] Changing the band that is installed
Components for each of the bands available for the two-band board used to be listed on the order sheet, if I remember correctly, but I don't see them now. Write to supp...@elecraft.com -- they may be low-enough volume now that they don't package them up routinely. But yes, reworking a board is easy. Peter W0LLN On Tue, Apr 24, 2012 at 2:24 PM, af6ni astro_cr...@hotmail.com wrote: I recently purchased a used K1. It came with the original 2 band board - I think set for 40 and 20, and a 4 band board that has 40, 30, 20 and 15. I would really like to get it on 17. Could I rework the 2 band board with components to cover 17? Would they be available from Elecraft? Thanks Joe AF6NI -- View this message in context: http://elecraft.365791.n2.nabble.com/Changing-the-band-that-is-installed-tp7497153p7497153.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] New KAT500 pics from the Visalia DX convention
Sexy! Mike W0MU W0MU-1 CC Cluster w0mu.net On 4/24/2012 12:50 PM, Eric Swartz - WA6HHQ, Elecraft wrote: New KAT500 pictures on our news page: http://www.elecraft.com/news.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] KX3 ATU
67' is very close to a half-wave on 40 m and a full-wave on 20 m. In theory the SWR should be insanely high, so I'm surprised the K1 ATU handled it on 20 m. Even if it did, the losses would be very high. Best to use lengths that aren't close to a multiple of a half-wave on any target band. Wayne N6KR On Apr 24, 2012, at 10:11 AM, Niel Wiegand wrote: Robert, I've found that the KX3 ATU loads up a 58' endfed wire just fine on all bands, but it can't load up everything. The 67' endfed wire I have (which, in theory, is very tough to load up) could be loaded up on 20 with the K1 ATU. The KX3 ATU can not handle it. So, for your loop, depending on the size, you may or may not have trouble depending on the length. For a closed loop I believe you want to avoid odd multiples of half wave lengths. If the possible length you have is pretty inflexible and the KX3 ATU can't handle it you can try inserting an insulator half way around making it an open loop. 73, Niel - W0VLZ KX3 #43 Message: 21 Date: Tue, 24 Apr 2012 12:50:28 + From:va3...@gmail.com Subject: [Elecraft] KX3 ATU To: Elecraftelecraft@mailman.qth.net Does anyone know what the capability/efficiency of the internal ATU is? Not talking about the wattage (its up to 20 I believe) but the tuning the SWR/range Looking at deploying a random wire/loop so I am wondering if I need a separate ATU or can the internal unit handle the range? Thanks Robert a 'kosher' ham Sent from my BlackBerry device __ 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
Any plans soon on a legal limit (1.5 KW+) auto tuner that can handle 10:1 SWR? Reading the site, it looks like the KAT500 will the power, but only at 3:1 SWR. - Owner, worldwidedx.com AE6LX, Amateur Radio NNN0ITA, Navy MARS NNN0GAF FOUR, Southern CA Director Assistant for Training, Navy MARS __ 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] Changing the band that is installed
Joe, At the Elecraft website, click on Order, then select the link for Spare Parts and Mod Kits. On the page that opens select K1 Parts - you will see the band module kits, they are $7.50 each. I would suggest you build that board for 80 and 17 meters, that will give you a total of 6 bands, and the K1 will remember settings for 6 bands. 73, Don W3FPR On 4/24/2012 3:24 PM, af6ni wrote: I recently purchased a used K1. It came with the original 2 band board - I think set for 40 and 20, and a 4 band board that has 40, 30, 20 and 15. I would really like to get it on 17. Could I rework the 2 band board with components to cover 17? Would they be available from Elecraft? 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] High Sierra in qst
Sorri peoples...I was referring to co. named High Sierra advertising in QST...I find them somewhat lacking If you don't change direction you WILL arrive exactly where you're headed!! Susan Meckley, Skipper W7KFI-mm AFA9SM USSV DHARMA From: Steve Reed ai...@arrl.net To: e...@elecraft.com Cc: David Cutter d.cut...@ntlworld.com; ussv dharma ussvdha...@yahoo.com; elecraft@mailman.qth.net Sent: Tuesday, April 24, 2012 8:09 AM Subject: Re: [Elecraft] High Sierra in qst I use the High Sierra HS1800 Pro antenna with my K3 at the QTH (I live in a restricted neighborhood). It works flawlessly, can't be seen by the neighborhood HOA cops, and has low SWR across all bands. Not sure if the HS1800 is made anymore, but from my experience High Sierra is a good company. Steve, AI7AZ On Tue, Apr 24, 2012 at 11:40 AM, Eric Swartz - WA6HHQ, Elecraft e...@elecraft.com wrote: I use the High Sierra Sidekick screwdriver antenna for my HF mobile. It is very reliable and works great. Excellent service from Jim at High Sierra too. 73, Eric WA6HHQ --- www.elecraft.com On 4/24/2012 10:54 AM, David Cutter wrote: Haven't seen it in QST yet, but I've used mine a few times without mishap. They are a bit noisy when tuning: the mast amplifies the sound quite a bit - shouldn't be fitted to a wall or chimney joining to your neighbour's. What is your experience? David G3UNA __ 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
Did I see BNC adapters? For THAT much energy? Not in my shack... ;-) It's time to replace the drool pads again... patience patience Rick wa6nhc On 4/24/2012 12:50 PM, Eric Swartz - WA6HHQ, Elecraft wrote: New KAT500 pictures on our news page: http://www.elecraft.com/news.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] KX3 ATU
Just to clarify: I'm referring to *end-fed* antennas that are a multiple of 1/2-wave. The feedpoint impedance of such antennas is extremely high, something like 3-6 Kohms. A 1/2-wave dipole or inverted V, fed in the middle, will typically be 50-75 ohms. Wayne N6KR On Apr 24, 2012, at 1:08 PM, Wayne Burdick wrote: 67' is very close to a half-wave on 40 m and a full-wave on 20 m. In theory the SWR should be insanely high, so I'm surprised the K1 ATU handled it on 20 m. Even if it did, the losses would be very high. Best to use lengths that aren't close to a multiple of a half-wave on any target band. Wayne N6KR On Apr 24, 2012, at 10:11 AM, Niel Wiegand wrote: Robert, I've found that the KX3 ATU loads up a 58' endfed wire just fine on all bands, but it can't load up everything. The 67' endfed wire I have (which, in theory, is very tough to load up) could be loaded up on 20 with the K1 ATU. The KX3 ATU can not handle it. So, for your loop, depending on the size, you may or may not have trouble depending on the length. For a closed loop I believe you want to avoid odd multiples of half wave lengths. If the possible length you have is pretty inflexible and the KX3 ATU can't handle it you can try inserting an insulator half way around making it an open loop. 73, Niel - W0VLZ KX3 #43 Message: 21 Date: Tue, 24 Apr 2012 12:50:28 + From:va3...@gmail.com Subject: [Elecraft] KX3 ATU To: Elecraftelecraft@mailman.qth.net Does anyone know what the capability/efficiency of the internal ATU is? Not talking about the wattage (its up to 20 I believe) but the tuning the SWR/range Looking at deploying a random wire/loop so I am wondering if I need a separate ATU or can the internal unit handle the range? Thanks Robert a 'kosher' ham Sent from my BlackBerry device __ 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] New KAT500 pics from the Visalia DX convention
Rick, Maybe you need another coffee?...:-) Look pretty much like SO-239's to me Gary On 25 April 2012 06:18, Rick Bates happymooseph...@gmail.com wrote: Did I see BNC adapters? For THAT much energy? Not in my shack... ;-) It's time to replace the drool pads again... patience patience Rick wa6nhc On 4/24/2012 12:50 PM, Eric Swartz - WA6HHQ, Elecraft wrote: New KAT500 pictures on our news page: http://www.elecraft.com/news.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 -- Gary VK4FD - Motorhome Mobile Elecraft Equipment K3 #679, KPA-500 #018 Living the dream!!! __ 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
They are one and the same company. Any chance you could explain what you were disappointed in? Lacking is pretty vague ... 73, Dave AB7E On 4/24/2012 1:17 PM, ussv dharma wrote: Sorri peoples...I was referring to co. named High Sierra advertising in QST...I find them somewhat lacking If you don't change direction you WILL arrive exactly where you're headed!! Susan Meckley, Skipper W7KFI-mm AFA9SM USSV DHARMA __ 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
Look closer, they used BNC to PL-259 adapters. The active antenna (front light) also isn't connected (ant 1 on the rear). I can live with the RG8x cable for under a kilowatt... but BNC above 100 watts on HF? Yes, I'm teasing them, it was a demo to show the box with the pretty lights for the ooh aah effect. I note that the RS-232 (presumably, PC Data) is not a standard connector (DB-9). That's unfortunate. I have a drawer full of 'special' cables already. I'd like to see some enterprising software engineer use the RLC info direct from the K3/KAT500 so we can use them as antenna analyzers (not just SWR, the actual values) automating what we can sort of do manually now. We already have most of what is needed to analyze the antenna, why not put it to use? 73, Rick wa6nhc _ From: Gary Gregory Rick, Maybe you need another coffee?...:-) Look pretty much like SO-239's to me Gary __ 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
Those are PL259 to BNC adapters from what I can see. The BNC's are faster to connect/disconnect. They are very efficient. I don't want to start another long thread, so please email me direct if you have some debate. 73, Bill K9YEQ -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Rick Bates Sent: Tuesday, April 24, 2012 3:19 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] New KAT500 pics from the Visalia DX convention Did I see BNC adapters? For THAT much energy? Not in my shack... ;-) It's time to replace the drool pads again... patience patience Rick wa6nhc On 4/24/2012 12:50 PM, Eric Swartz - WA6HHQ, Elecraft wrote: New KAT500 pictures on our news page: http://www.elecraft.com/news.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
http://www.elecraft.com/KAT500/kat500rear_visalia.jpg There are no BNC connectors on the back of the KAT500. The back panel (from left to right) has a heavy screw with wing nut for ground, four SO-239s (ANT3, ANT2, ANT1, XMTR), a 2.1 mm coaxial jack for 12V DC power, two RCA phono jacks for amplifier PTT key line interrupt (you would not normally use these for an Elecraft K3 / KPA500), a 3.5mm TRS jack labeled AH-4 that can be used with ICOM transceivers with a TUNE button and a four-pin Molex tune connector, a 3.5mm TRS jack labeled PC Data that uses a device like the KXUSB USB-to-serial adapter, or the same serial cable that is used for the W2 or XG3), and two 15-pin accessory connectors for connection from K3 to KAT500 to KPA500. Dick, K6KR -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Rick Bates Sent: Tuesday, April 24, 2012 1:19 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] New KAT500 pics from the Visalia DX convention Did I see BNC adapters? For THAT much energy? Not in my shack... ;-) It's time to replace the drool pads again... patience patience Rick wa6nhc On 4/24/2012 12:50 PM, Eric Swartz - WA6HHQ, Elecraft wrote: New KAT500 pictures on our news page: http://www.elecraft.com/news.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
I see a couple 15-pin HD connectors, XCVR and AMP. I have a pretty well stuffed plug on the K3 ACC socket now (RTTY interface / KRC2 / PR6 / KPA500). Does the K3 to KPA500 cable simply go to the KAT500, then a jumper from the KAT to the KPA ?? THX! 73, Bill N2BC __ 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
Hi, Yes, but the cables are BNC terminated cables connected via adapters from the looks of it it. Not in my shack either, but that is beside the point. More questions: How much current on the 11-15V supply? Is the tune button a simple switch to ground? You know what I am getting at. I want to mount this fellow outdoors in a weather protected shelter and remote it. I have been doing that successfully with an MFJ auto-tuner for more than 3 upstate NY winters and it's still going strong. I think my house can accommodate the KAT500 with some rearranging. Assuming that the tuner will switch to bypass when losing power, all I need is the ability to initiate a tune cycle. I assume that the tuner can be put in semiautomatic mode (only tunes on demand) and will remember the mode across power cycle. I am drooling already. The MFJ tuner performs adequately but has a 200W limit and is somewhat temperamental when it comes to finding a tuning solution. An Eham reviewer of it claims that they have wired the 4 LSB bits for the relays backwards. I find it hard to believe but it often fails to find solutions on easy to tune antennas (I have 6 behind an MFJ remote switch box). AB2TC - Knut Gary Gregory wrote Rick, Maybe you need another coffee?...:-) Look pretty much like SO-239's to me Gary On 25 April 2012 06:18, Rick Bates lt;happymoosephoto@gt; wrote: Did I see BNC adapters? For THAT much energy? Not in my shack... ;-) It's time to replace the drool pads again... patience patience Rick wa6nhc On 4/24/2012 12:50 PM, Eric Swartz - WA6HHQ, Elecraft wrote: New KAT500 pictures on our news page: http://www.elecraft.com/news.htm __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@.qth This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html -- Gary VK4FD - Motorhome Mobile Elecraft Equipment K3 #679, KPA-500 #018 Living the dream!!! __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@.qth This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html -- View this message in context: http://elecraft.365791.n2.nabble.com/New-KAT500-pics-from-the-Visalia-DX-convention-tp7497067p7497526.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] New KAT500 pics from the Visalia DX convention
10:1 SWR at 1.5 kW mandates voltages and currents that require, among other very expensive items, vacuum variable caps, [high current AND high voltage] relay design and contacts, and inductors that can handle ridiculous reactive currents. And I'm sure you want it in the same form factor, right? If you want to see something actually built for that, try http://www.rfconcepts.com/PRODUCTS/New-Products/Alpha4040 There probably is not a reasonable antenna that you cannot partially match at the antenna feed to reduce SWR over the coax, and save a lot of loss in the process, to get it at significantly less than 3:1 looking into the coax. An example of this is using a 3:1 turns ratio autotransformer (not a balun) at the base of an end-fed halfwave. Feeding 9:1 stepped down Z over the coax is not so bad, and it's within the range of just about any tuner I ever saw. If you're getting 10:1 out of a piece of coax, you're using up your amp to cover the loss in the coax from running power through it at a ridiculous and hugely lossy SWR. 73, Guy. On Tue, Apr 24, 2012 at 4:11 PM, Tim Tucker ae...@worldwidedx.com wrote: Any plans soon on a legal limit (1.5 KW+) auto tuner that can handle 10:1 SWR? Reading the site, it looks like the KAT500 will the power, but only at 3:1 SWR. - Owner, worldwidedx.com AE6LX, Amateur Radio NNN0ITA, Navy MARS NNN0GAF FOUR, Southern CA Director Assistant for Training, Navy MARS __ 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
Yes, the connections are as you've suggested. The KAT500 has access to the K3's band change lines, AUXBUS, and can interrupt the KPA500 PTT key line with just that one cable. 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. Unfortunately I have more ideas than time to implement them. Dick, K6KR -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of N2BC Sent: Tuesday, April 24, 2012 2:43 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] New KAT500 pics from the Visalia DX convention I see a couple 15-pin HD connectors, XCVR and AMP. I have a pretty well stuffed plug on the K3 ACC socket now (RTTY interface / KRC2 / PR6 / KPA500). Does the K3 to KPA500 cable simply go to the KAT500, then a jumper from the KAT to the KPA ?? THX! 73, Bill N2BC __ 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
The voltage at 500 watts would be 224 volts peak. In fact, 1500 watts would be 387 volts peak. Well within the 500 volt peak rating of the BNC and the 500 volt peak rating of the UHF connector according to Amphenol. The N connector is rated at 1500 volts peak, which is odd since the center of it is the same dimensions as the BNC connector. The output of the tuner is another matter as to a possible peak voltage... But I run all BNC connectors in my shack, have for decades and never had an issue with up to legal limit. I do have a UHF jack at the output of my tuner, connected to a UHF plug on a balun. By the way, UHF connectors are not 50 ohm connectors, but are non constant impedance connectors. 50 ohm BNCs are of course 50 ohms Chuck, KE9UW aka Jack, BMW Motorcycles From: elecraft-boun...@mailman.qth.net [elecraft-boun...@mailman.qth.net] on behalf of Dick Dievendorff [die...@comcast.net] Sent: Tuesday, April 24, 2012 4:33 PM To: 'Rick Bates'; elecraft@mailman.qth.net Subject: Re: [Elecraft] New KAT500 pics from the Visalia DX convention http://www.elecraft.com/KAT500/kat500rear_visalia.jpg There are no BNC connectors on the back of the KAT500. The back panel (from left to right) has a heavy screw with wing nut for ground, four SO-239s (ANT3, ANT2, ANT1, XMTR), a 2.1 mm coaxial jack for 12V DC power, two RCA phono jacks for amplifier PTT key line interrupt (you would not normally use these for an Elecraft K3 / KPA500), a 3.5mm TRS jack labeled AH-4 that can be used with ICOM transceivers with a TUNE button and a four-pin Molex tune connector, a 3.5mm TRS jack labeled PC Data that uses a device like the KXUSB USB-to-serial adapter, or the same serial cable that is used for the W2 or XG3), and two 15-pin accessory connectors for connection from K3 to KAT500 to KPA500. Dick, K6KR -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Rick Bates Sent: Tuesday, April 24, 2012 1:19 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] New KAT500 pics from the Visalia DX convention Did I see BNC adapters? For THAT much energy? Not in my shack... ;-) It's time to replace the drool pads again... patience patience Rick wa6nhc On 4/24/2012 12:50 PM, Eric Swartz - WA6HHQ, Elecraft wrote: New KAT500 pictures on our news page: http://www.elecraft.com/news.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 __ 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
We weren't using high power at Visalia. There are different opinions about whether 500 W is too much for a BNC connector, but the point is moot; the connectors on the KAT500 are all SO-239 UHF connectors. Power needs haven't been specified, but we have a number of 12V relays that want 30 mA and one that needs 60 mA. I'm hoping we can keep the overall power limit to 2A max, but 1A may not be attainable. There will be a pull-to-ground to initiate tune mechanism on the AH-4 connector. However we really need to interrupt the amplifier key line during tuning, or you'll have to do it yourself to tune. Some of the ATU's ability to protect itself from damage in the event of severe mismatch and high power depends on the ability to inhibit the amplifier through the amp PTT/key line. The ATU is bypassed and ANT1 is selected when powered off. Right now I depend on a power off pushbutton to save some transient state, but I think I want to do it periodically anyway (saving only if it's changed) so that if you make a change and wait a few seconds we won't lose that state across power off. New tune results are of course saved for retune. We have a lot of EEPROM for saving tune results. Dick, K6KR -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of ab2tc Sent: Tuesday, April 24, 2012 2:45 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] New KAT500 pics from the Visalia DX convention Hi, Yes, but the cables are BNC terminated cables connected via adapters from the looks of it it. Not in my shack either, but that is beside the point. More questions: How much current on the 11-15V supply? Is the tune button a simple switch to ground? You know what I am getting at. I want to mount this fellow outdoors in a weather protected shelter and remote it. I have been doing that successfully with an MFJ auto-tuner for more than 3 upstate NY winters and it's still going strong. I think my house can accommodate the KAT500 with some rearranging. Assuming that the tuner will switch to bypass when losing power, all I need is the ability to initiate a tune cycle. I assume that the tuner can be put in semiautomatic mode (only tunes on demand) and will remember the mode across power cycle. I am drooling already. The MFJ tuner performs adequately but has a 200W limit and is somewhat temperamental when it comes to finding a tuning solution. An Eham reviewer of it claims that they have wired the 4 LSB bits for the relays backwards. I find it hard to believe but it often fails to find solutions on easy to tune antennas (I have 6 behind an MFJ remote switch box). AB2TC - Knut Gary Gregory wrote Rick, Maybe you need another coffee?...:-) Look pretty much like SO-239's to me Gary On 25 April 2012 06:18, Rick Bates lt;happymoosephoto@gt; wrote: Did I see BNC adapters? For THAT much energy? Not in my shack... ;-) It's time to replace the drool pads again... patience patience Rick wa6nhc On 4/24/2012 12:50 PM, Eric Swartz - WA6HHQ, Elecraft wrote: New KAT500 pictures on our news page: http://www.elecraft.com/news.htm __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@.qth This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html -- Gary VK4FD - Motorhome Mobile Elecraft Equipment K3 #679, KPA-500 #018 Living the dream!!! __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@.qth This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html -- View this message in context: http://elecraft.365791.n2.nabble.com/New-KAT500-pics-from-the-Visalia-DX-con vention-tp7497067p7497526.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] High Sierra in qst
What did you buy from High Sierra that disappointed you Susan? Or was it their service that was not to your liking? I see connector crimpers, heat guns, drill bits and such advertised. I have not dealt with them, but I have had a good impression from what I have heard and read. Willis 'Cookie' Cooke K5EWJ Trustee N5BPS, USS Cavalla, USS Stewart From: ussv dharma ussvdha...@yahoo.com To: Steve Reed ai...@arrl.net; e...@elecraft.com e...@elecraft.com Cc: elecraft@mailman.qth.net elecraft@mailman.qth.net Sent: Tuesday, April 24, 2012 3:17 PM Subject: Re: [Elecraft] High Sierra in qst Sorri peoples...I was referring to co. named High Sierra advertising in QST...I find them somewhat lacking If you don't change direction you WILL arrive exactly where you're headed!! Susan Meckley, Skipper W7KFI-mm AFA9SM USSV DHARMA From: Steve Reed ai...@arrl.net To: e...@elecraft.com Cc: David Cutter d.cut...@ntlworld.com; ussv dharma ussvdha...@yahoo.com; elecraft@mailman.qth.net Sent: Tuesday, April 24, 2012 8:09 AM Subject: Re: [Elecraft] High Sierra in qst I use the High Sierra HS1800 Pro antenna with my K3 at the QTH (I live in a restricted neighborhood). It works flawlessly, can't be seen by the neighborhood HOA cops, and has low SWR across all bands. Not sure if the HS1800 is made anymore, but from my experience High Sierra is a good company. Steve, AI7AZ On Tue, Apr 24, 2012 at 11:40 AM, Eric Swartz - WA6HHQ, Elecraft e...@elecraft.com wrote: I use the High Sierra Sidekick screwdriver antenna for my HF mobile. It is very reliable and works great. Excellent service from Jim at High Sierra too. 73, Eric WA6HHQ --- www.elecraft.com On 4/24/2012 10:54 AM, David Cutter wrote: Haven't seen it in QST yet, but I've used mine a few times without mishap. They are a bit noisy when tuning: the mast amplifies the sound quite a bit - shouldn't be fitted to a wall or chimney joining to your neighbour's. What is your experience? David G3UNA __ 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] Changing the band that is installed
Thanks folks, I'll order that 17m Don. I actually received an uninstalled 80m kit with the purchase, so as you suggested, will make that 2 band board 80 17. 73 Joe -- View this message in context: http://elecraft.365791.n2.nabble.com/Changing-the-band-that-is-installed-tp7497153p7497651.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] New KAT500 pics from the Visalia DX convention
BNC's can handle kilowatts of RF efficiently at reasonable SWRs. After all, the popular type N is simply a BNC with a screw-on outer shell. Decent quality BNCs (e.g. Amphenol) are rated at 500 volts peak with a dielectric that will handle 1,500 V rms. That's 5 KW into 50 ohms, if my brain is working correctly, so they should handle the legal limit for US Hams into any reasonable SWR. Ron AC7AC -Original Message- Did I see BNC adapters? For THAT much energy? Not in my shack... ;-) It's time to replace the drool pads again... patience patience Rick wa6nhc On 4/24/2012 12:50 PM, Eric Swartz - WA6HHQ, Elecraft wrote: New KAT500 pictures on our news page: http://www.elecraft.com/news.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] New KAT500 pics from the Visalia DX convention
The 500 volts peak translates to 1250 watts at an SWR = 1.0, but the 1,500 V rms translates into 45 kW (also at SWR = 1.0) if my calculator is correct. In ant case, BNC connectors do not have a problem at the 500 watt level unless the SWR is high. On 4/24/2012 6:57 PM, Ron D'Eau Claire wrote: BNC's can handle kilowatts of RF efficiently at reasonable SWRs. After all, the popular type N is simply a BNC with a screw-on outer shell. Decent quality BNCs (e.g. Amphenol) are rated at 500 volts peak with a dielectric that will handle 1,500 V rms. That's 5 KW into 50 ohms, if my brain is working correctly, so they should handle the legal limit for US Hams into any reasonable SWR. Ron AC7AC __ 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
Is there an option to replace the SO239s on my K3 with BNCs? Sent from my iPad On 25 Apr 2012, at 00:15, Don Wilhelm w3...@embarqmail.com wrote: The 500 volts peak translates to 1250 watts at an SWR = 1.0, but the 1,500 V rms translates into 45 kW (also at SWR = 1.0) if my calculator is correct. In ant case, BNC connectors do not have a problem at the 500 watt level unless the SWR is high. On 4/24/2012 6:57 PM, Ron D'Eau Claire wrote: BNC's can handle kilowatts of RF efficiently at reasonable SWRs. After all, the popular type N is simply a BNC with a screw-on outer shell. Decent quality BNCs (e.g. Amphenol) are rated at 500 volts peak with a dielectric that will handle 1,500 V rms. That's 5 KW into 50 ohms, if my brain is working correctly, so they should handle the legal limit for US Hams into any reasonable SWR. Ron AC7AC __ 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
Oak Hills Research sells a kit with a female BNC and a punched plate sized to fit in place of a SO-239 for $5.00 each or two for $7.50. I have them on both of my K3s and quite a few other places in the shack. The ones that haven't been replaced wear adapters to BNC, all my cables are BNC... That reminds me, I've got to yoder a few more... Chuck - AA3CS Sent from my iPhone On Apr 24, 2012, at 19:24, David Ferrington, M0XDF m0...@alphadene.co.uk wrote: Is there an option to replace the SO239s on my K3 with BNCs? Sent from my iPad On 25 Apr 2012, at 00:15, Don Wilhelm w3...@embarqmail.com wrote: The 500 volts peak translates to 1250 watts at an SWR = 1.0, but the 1,500 V rms translates into 45 kW (also at SWR = 1.0) if my calculator is correct. In ant case, BNC connectors do not have a problem at the 500 watt level unless the SWR is high. On 4/24/2012 6:57 PM, Ron D'Eau Claire wrote: BNC's can handle kilowatts of RF efficiently at reasonable SWRs. After all, the popular type N is simply a BNC with a screw-on outer shell. Decent quality BNCs (e.g. Amphenol) are rated at 500 volts peak with a dielectric that will handle 1,500 V rms. That's 5 KW into 50 ohms, if my brain is working correctly, so they should handle the legal limit for US Hams into any reasonable SWR. Ron AC7AC __ 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] Regarding KAT500 current drain
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
Re: [Elecraft] New KAT500 pics from the Visalia DX convention
I had Joel at The RF Connection (therfc.com) order me some BNC panel connectors with the same bolt pattern as an SO239. This allowed me to change out the connectors on my K3 and several other pieces of equipment. It is not an item he normally stocks as far as I know. I gave them the RFI part number and they ordered me 10-12 of them as I remember. They may have even have come drop ship from RFI. But RFI wouldn't even acknowledge an email from me. The RFI part number is RFB-115-14 if you want them to order some for you. On Tue, Apr 24, 2012 at 6:24 PM, David Ferrington, M0XDF m0...@alphadene.co.uk wrote: Is there an option to replace the SO239s on my K3 with BNCs? Sent from my iPad On 25 Apr 2012, at 00:15, Don Wilhelm w3...@embarqmail.com wrote: The 500 volts peak translates to 1250 watts at an SWR = 1.0, but the 1,500 V rms translates into 45 kW (also at SWR = 1.0) if my calculator is correct. In ant case, BNC connectors do not have a problem at the 500 watt level unless the SWR is high. On 4/24/2012 6:57 PM, Ron D'Eau Claire wrote: BNC's can handle kilowatts of RF efficiently at reasonable SWRs. After all, the popular type N is simply a BNC with a screw-on outer shell. Decent quality BNCs (e.g. Amphenol) are rated at 500 volts peak with a dielectric that will handle 1,500 V rms. That's 5 KW into 50 ohms, if my brain is working correctly, so they should handle the legal limit for US Hams into any reasonable SWR. Ron AC7AC __ 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 -- Jim K0XU j...@rhodesend.net __ 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
Jim, Don't get me wrong, I am quite happy using UHF to BNC adapters where they are convenient. I use PL-259 connectors on RG-8X or RG-213 cables for my intra-shack connections. In other words, I use what works. I do have several cables with PL-259 on one end and BNC on the other to connect to my QRP gear. I have no desire convert my equipment from the connectors that are standard for that piece of equipment to anything else. There are adapters and tween series connectors that will serve as the transition pieces. As A for-instance, my HW101 used an RCA jack for the RF connector (the Collins KWM@ and S-line did too if my memory is correct). The use of an RCA to either BNC or PL-259 adapter is prudent rather than changing the connector on that piece of classic gear. 73, Don W3FPR On 4/24/2012 10:13 PM, Jim Rhodes wrote: I had Joel at The RF Connection (therfc.com) order me some BNC panel connectors with the same bolt pattern as an SO239. This allowed me to change out the connectors on my K3 and several other pieces of equipment. It is not an item he normally stocks as far as I know. I gave them the RFI part number and they ordered me 10-12 of them as I remember. They may have even have come drop ship from RFI. But RFI wouldn't even acknowledge an email from me. The RFI part number is RFB-115-14 if you want them to order some for you. On Tue, Apr 24, 2012 at 6:24 PM, David Ferrington, M0XDF m0...@alphadene.co.uk wrote: Is there an option to replace the SO239s on my K3 with BNCs? Sent from my iPad On 25 Apr 2012, at 00:15, Don Wilhelmw3...@embarqmail.com wrote: The 500 volts peak translates to 1250 watts at an SWR = 1.0, but the 1,500 V rms translates into 45 kW (also at SWR = 1.0) if my calculator is correct. In ant case, BNC connectors do not have a problem at the 500 watt level unless the SWR is high. On 4/24/2012 6:57 PM, Ron D'Eau Claire wrote: BNC's can handle kilowatts of RF efficiently at reasonable SWRs. After all, the popular type N is simply a BNC with a screw-on outer shell. Decent quality BNCs (e.g. Amphenol) are rated at 500 volts peak with a dielectric that will handle 1,500 V rms. That's 5 KW into 50 ohms, if my brain is working correctly, so they should handle the legal limit for US Hams into any reasonable SWR. Ron AC7AC __ 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] High Sierra in qst
On 4/24/2012 3:36 PM, WILLIS COOKE wrote: What did you buy from High Sierra that disappointed you Susan? Or was it their service that was not to your liking? I see connector crimpers, heat guns, drill bits and such advertised. I have not dealt with them, but I have had a good impression from what I have heard and read. I know Jim personally, he lives about 9 miles north of me and I see him often, please give us some details Susan. 73, Fred K6DGW - Northern California Contest Club - CU in the 2012 Cal QSO Party 6-7 Oct 2012 - www.cqp.org __ 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 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] New KAT500 pics from the Visalia DX convention
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. 73, Ron AC7AC -Original Message- I had Joel at The RF Connection (therfc.com) order me some BNC panel connectors with the same bolt pattern as an SO239. This allowed me to change out the connectors on my K3 and several other pieces of equipment. It is not an item he normally stocks as far as I know. I gave them the RFI part number and they ordered me 10-12 of them as I remember. They may have even have come drop ship from RFI. But RFI wouldn't even acknowledge an email from me. The RFI part number is RFB-115-14 if you want them to order some for you. On Tue, Apr 24, 2012 at 6:24 PM, David Ferrington, M0XDF m0...@alphadene.co.uk wrote: Is there an option to replace the SO239s on my K3 with BNCs? Sent from my iPad __ 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
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] hello
check this out wow http://www.nb15news.net/biz/?page=0369967 ~*Advertisement __ 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
Hello Craig, Not singling you out or anything but I've been wondering while reading this thread WHY you would want to change to a non-standard connector series? The UHF connector is the standard for HF radios, watt-meters, antenna switches, etc. You mention rapid cable changes.just how many times in an average week do you change cables? On 4/24/2012 9:37 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 -- 73, Gary K9GS Greater Milwaukee DX Association: http://www.gmdxa.org Society of Midwest Contesters: http://www.w9smc.com CW Ops #1032 http://www.cwops.org __ 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
Craig, I do not want to push the envelope, but I have found that UHF connectors are more reliable than BNC. The BNC connectors are smaller, but are more susceptible to the connection being distorted because either the center conductor has been pulled back into the housing or the shield connection has failed. In other words, a BNC connector is no panacea - it can have failure points unknown to the UHF connector world. Below 100 MHz, the UHF connector is perfectly adequate. The only caution I can offer on the use of UHF connectors is that they must be tightened - finger tight is not enough, it requires a slight extra tightening with pliers. The continuity of the shield connection depends on the tightness of the connector - BNC and Type N do not have that dependency - if those connectors are engaged (whether tightened or not), there is a good connection for bother the center conductor and the shield. I do use BNC connectors at my workbench every day just because they are convenient and easy to change from one connection to another. If I an servicing a KPA100, I will screw a PL-259 to BNC adapter onto the RF output jack so I can use my workbench BNC cables for quick connect/disconnect. 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 __ 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] Test, please ignore
I got a Bounce report from Mailman.com, so I am testing my email. 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
[Elecraft] MAC KX3 utility
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
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
Re: [Elecraft] MAC KX3 utility
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 Galambos va3...@gmail.com wrote: From: Robert Galambos va3...@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
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
Re: [Elecraft] Arlan RS60CF Headset
On 4/24/2012 7:07 AM, Greg wrote: I have one and love it. Although expensive, it is the best headset I have used. Several NCCC members bought one after they gave us a sales presentation at a meeting, but I don't know of any that like it, including the guy who arranged the presentation. They found it quite uncomfortable for long term use, and discontinued using it. I tried one on and came to the same conclusion. 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] New KAT500 pics from the Visalia DX convention
Getting back to the original post.. which was the KAT500...great looking product as expected. Does it look like an announcement as to price and availablity is coming by the end of May? ..mike AI6II -- View this message in context: http://elecraft.365791.n2.nabble.com/New-KAT500-pics-from-the-Visalia-DX-convention-tp7497067p7498249.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] MAC KX3 utility
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 Fleming df...@yahoo.com wrote: From: David Fleming df...@yahoo.com Subject: Re: [Elecraft] MAC KX3 utility To: Elecraft reflector elecraft@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 Galambos va3...@gmail.com wrote: From: Robert Galambos va3...@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
Re: [Elecraft] New KAT500 pics from the Visalia DX convention
I believe that the accepted figure for the loss of one PL-259 connector is about 0.01 dB at 50 MHz, and this is a very conservative (pessimistic) estimate. You will find measurements on the web that vary from 0 dB to 1 dB for a single PL-259. The (female) SO-239 is a bit worse, but if you use 0.01 dB for each connector regardless of type, you will have a pretty good, conservative estimate of the connector loss in your system at HF. The typical ham has about 20 coaxial connectors in the path between transmitter and antenna, representing a total loss of about 0.2 dB (conservative) representing about 4.5 W loss for every 100 W of transmitter power. To me this seems like it's in the (very conservative) ballpark. The loss increases at higher frequencies, as you can imagine, but it's also even lower at lower frequencies. Al W6LX __ 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
