Re: [Elecraft] KX-3/2M transverter
I have heard of that happening on HF in transmit-perhaps RF getting back into the mic when the antenna is rather close to the rig? I don't xmit on 2m with mine, I only use it for satellite listening. 72 Howard Kraus, K2UD -From: "Steve McKee" To: elecraft@mailman.qth.net Cc: Sent: Monday February 26 2024 11:29:44AM Subject: [Elecraft] KX-3/2M transverter Hi all, I've got the 2M transverter installed and it works great. I have a 35W amp inline so I use it a lot on 2M locally. But the issue I'm having is it randomly shifts 5khz on me. Seem to do it when I put the mic down, so bought a new one. It didn't help still have the problem. I haven't noticed if it does it on the HF side as I haven't spent a lot of time on it. Anyone have this experience??! Steve//KE0RSI null __ 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 [1] Please help support this email list: http://www.qsl.net/donate.html /> Message delivered to qr...@roadrunner.com Links: -- [1] http://www.qsl.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] SALE > Elecraft KX3-2M Transverter Board Option.
Hey guys, The transverter is sensitive enough to hear low Earth orbiting satellites with a 3-element hand-held yagi clearly. I'd jump on it, but I already have one. 72 Howard Kraus, K2UD -From: ken057...@gmail.com To: elecraft@mailman.qth.net Cc: Sent: Friday December 22 2023 3:58:20PM Subject: [Elecraft] SALE > Elecraft KX3-2M Transverter Board Option. Hello all, I have the KX3-2M Transverter option board for sale. It's about four years old. I don't need the board for 2m FM and putting up a large outdoor beam for SSB at this HOA location isn't possible. During testing, it receives and transmits fine on my attic vertical into local repeaters. Removed it from the KX3 while following the manual and ESD procedures. A hard copy of the installation/operating manual is included. Photos available. I think Elecraft is up to $300.00 for this board! No returns or refunds for all the standard reasons. $185.00 shipped to CONUS only. Shipping prices are just out of site now! PayPal, friends/family, Zelle, Postal Money order or a cleared personal check are all ok. Thanks for looking, Ken, W2GIW __ 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 [1] Please help support this email list: http://www.qsl.net/donate.html /> Message delivered to qr...@roadrunner.com Links: -- [1] http://www.qsl.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Blinking in KX-3
Watchdog timer? Just a guess. 72 Howard Kraus, K2UD -From: "Timothy Gordish via Elecraft" To: elecraft@mailman.qth.net Cc: Sent: Sunday December 19 2021 5:59:26AM Subject: [Elecraft] Blinking in KX-3 I have owned my KX-3 for many years and just noticed a tiny LED blinking inside. It is noticeable through the key connector on the bottom of the radio. What is this? I have all the upgrades except the two meter. __ 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 [1] Please help support this email list: http://www.qsl.net/donate.html /> Message delivered to qr...@roadrunner.com Links: -- [1] http://www.qsl.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Power supply for KX3
My Radio Shack supply is entirely quiet, it is a classic straight-through design. No switching going on here. 72 Howard Kraus, K2UD -From: "Dan Presley" To: "K2" Cc: Sent: Friday October 8 2021 10:42:44PM Subject: Re: [Elecraft] Power supply for KX3 The Radio Shack supplies are abysmally noisy. Don’t go there…the Pro Audio is far superior. Dan Presley 503-701-3871 danpresley@me. com n7...@arrl.net > On Oct 8, 2021, at 17:49, Jim Brown wrote: > On 10/8/2021 4:14 PM, qr...@roadrunner.com wrote: >> The ubiquitous Radio Shack 22-124A (and its variants) power supply is >> a perfect match for the KX-3. Manufactured by the millions and cheaper >> than dirt on that watery place or under hamfest tables it meets the >> current-handling needs of the KX-3. > > I don't see comments on the elephant in the room -- most commercial power supplies dump out lots of RF noise, both from their switch-mode operation and their regulation circuitry. I would be VERY suspicious of any such unit not specifically marketed to hams for use on the HF bands. > > The ProAudioEng PSU is quiet for the low current needed for receive, but is noisy at the higher current of transmit. No problem if you're using only one radio at a time, but bad news if you're listening on a second radio tuned to another band while transmitting. It may be possible to quiet that noise with ferrite chokes. I have one of these PSUs, but haven't tried to choke it. > > 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 [1] > Please help support this email list: http://www.qsl.net/donate.html /> > Message delivered to n7...@arrl.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 [2] Please help support this email list: http://www.qsl.net/donate.html /> Message delivered to qr...@roadrunner.com Links: -- [1] http://www.qsl.net [2] http://www.qsl.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Power supply for KX3
The ubiquitous Radio Shack 22-124A (and its variants) power supply is a perfect match for the KX-3. Manufactured by the millions and cheaper than dirt on that watery place or under hamfest tables it meets the current-handling needs of the KX-3. 72 Howard Kraus, K2UD -From: "Paul Huff" To: "Elecraft Email List" Cc: Sent: Friday October 8 2021 9:58:13AM Subject: [Elecraft] Power supply for KX3 My beautiful bride of 44 years is encouraging me to upgrade my shack to an Elecraft KX3. (Seriously, she is the one who brought it up!) At the same time I will be reducing the footprint of all of my accumulated gear including my ancient, but still working, Astron RS-35A power supply. Elecraft offers a little switcher made by Powerwerx for $119, and for convince I might just go ahead and add that to my KX3 order, but I thought that I would first ask if any of you have other (better? less expensive?) suggestions for a switching power supply to run the KX3 on? BTW, I’m strictly a QRP/CW op so there will be no future plans for an amplifier. Thanks ahead of time for any thoughts and suggestions. 73, Paul - N8XMS 100% QRP CW __ 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 [1] Please help support this email list: http://www.qsl.net/donate.html /> Message delivered to qr...@roadrunner.com Links: -- [1] http://www.qsl.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX-3 won't turn on with batteries
Do you measure voltage at the battery connector? 72 Howard Kraus, K2UD -From: ncela...@scicable.com To: elecraft@mailman.qth.net Cc: Sent: Thursday September 23 2021 5:25:40PM Subject: [Elecraft] KX-3 won't turn on with batteries I got my new factory built KX-3 last week. I just installed new eneloop pro NI-MH batteries and the radio will not turn on using the batteries. Using a power supply I changed the charger settings per the manual, when I try to close out of the menu I get a batt err message. Yes the charger was installed at the factory. I also tried a new set of Energizer Max still will not turn on. All batteries are new and the voltage is as it should be. I also checked battery plug in the radio it was tight. I did check polarity several times. Any ideas??? TIA Larry NA0F __ 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 [1] Please help support this email list: http://www.qsl.net/donate.html /> Message delivered to qr...@roadrunner.com Links: -- [1] http://www.qsl.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 Message delivered to arch...@mail-archive.com
[Elecraft] FS: QRP Works Ham Central Terminal for Elecraft rigs
Works with Elecraft KX2, KX3, K3 and K3S Provides 20 character by 4 line display Transmits by keyboard or stored messages Control of rig by macros Can log up to 1000 QSOs Portable, runs on 9V battery or external power $249 new, I am selling this unit for $189 to your door. I am the original owner. Howard Kraus, K2UD __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] KXBC3 battery charger
Hi Frank, I operate, or at least listen quite a bit with my KX3 outdoors even if it's just out in the back yard. I find the charger to be indispensable. I use the ubiquitous Radio Shack 3A P.S. and Eneloop batteries and don't know how I would manage with this setup. Yes, the clock is not very accurate but I barely use that feature. I say go for the charger! 72 Howard Kraus, K2UD -From: "Frank O'Donnell" To: "Elecraft Reflector" Cc: Sent: Thursday July 1 2021 4:10:56PM Subject: [Elecraft] KXBC3 battery charger I have a KX3 bought new in 2018 that has close to all of the available options with the exception of the KXBC3 battery charger. Until now I haven't paid much attention to this, as I've usually used the radio with a Pro Audio PSU when 110vac is available, otherwise with a Bioenno external battery. But I may be using it more in backpack situations, and am on the fence on whether I'd get much use out of a KXBC3. Obviously everyone has to make this decision for themselves based on their usage habits. Just curious, though, is anyone finding the internal charger really useful? Or not? It doesn't sound like the real-time clock is accurate enough to make it a reason to consider buying this. Thanks for any thoughts, Frank K6FOD __ 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 [1] Please help support this email list: http://www.qsl.net/donate.html /> Message delivered to qr...@roadrunner.com Links: -- [1] http://www.qsl.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3 RTTY W1AW Reception
I wondered if were that, or if they changed baud rate. I tried contacting Joe Carcia station manager, but he must be home with his family at this hour. Will try again tomorrow. Thanks Jim! 72 Howard K2UD -From: "Jim McDonald" To: "qr...@roadrunner.com", "elecraft@mailman.qth.net" Cc: Sent: Monday January 25 2021 6:40:34PM Subject: RE: [Elecraft] KX3 RTTY W1AW Reception Yes, but it's not just with a KX3. The bulletins have their mark and space reversed. It's been reported to the W1AW station manager. 73, Jim N7US -Original Message- Has anybody had difficulty copying W1AW RTTY transmissions on their KX3 lately? This past weekend I had no problem copying the BARTG RTTY contest on any band. Lately though, when I tune in the W1AW RTTY bulletin, I print gobbledygook (that's a high falutin' term for it don't make no sense at all). PSK31 reception on the same frequency is fine. I just wonder if they swapped mark and space over there in Newington or changed speed. Inquiring minds and all. TNX all. 72 Howard Kraus, K2UD __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] KX3 RTTY W1AW Recption
Has anybody had difficulty copying W1AW RTTY transmissions on their KX3 lately? This past weekend I had no problem copying the BARTG RTTY contest on any band. Lately though, when I tune in the W1AW RTTY bulletin, I print gobbledygook (that's a high falutin' term for it don't make no sense at all). PSK31 reception on the same frequency is fine. I just wonder if they swapped mark and space over there in Newington or changed speed. Inquiring minds and all. TNX all. 72 Howard Kraus, K2UD __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] KXPD2 screws
I can't help you with the screw size, but I recommend contacting Elecraft on this. The point on one of the screws is ground down to eliminate some type of physical interference in the KX3. It would be wise to use the screws that come with the paddle. 72 Howard Kraus, K2UD -From: "Alastair Bolton via Elecraft" To: elecraft@mailman.qth.net Cc: Sent: Monday November 16 2020 4:38:56PM Subject: [Elecraft] KXPD2 screws Hello, I’ve been offered a secondhand KXPD2 key for my KX3 but it’s missing the screws to attach it to the radio’s case. I’m loath to experiment with random fasteners so could someone please inform me what size the retaining screws are? Thank you, Al G4VSQ Sent from my iPhone __ Elecraft mailing list Home: Message delivered to qr...@roadrunner.com Links: -- [1] http://mailman.qth.net/mmfaq.htm http://mailman.qth.net/mmfaq.htm /> Post: mailto:Elecraft@mailman.qth.net This list hosted by: 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] XV222 RX is Dead, Need Advice
Mark, Do you have a schematic for the XV222? I looked on their site and could not come up with one. 72 Howard Kraus, K2UD -From: "Don Wilhelm" To: "k2qo" Cc: Sent: Friday September 25 2020 2:44:03PM Subject: Re: [Elecraft] XV222 RX is Dead, Need Advice Mark, Sorry about your failed effort. There is little in the RX path other than Q3 and U1 that is not also used in TX. If you have equipment that can do signal tracing at 222MHz, just trace the signal path. There should be a significant increase in RF voltage at the output of Q3 and more at the output of U1. If not, check to be certain K1 has not been damaged. K1 should be available from Elecraft since it is used in the XV144 which is still in production. 73, Don W3FPR On 9/25/2020 1:21 PM, k2qo wrote: > Don and gang, > > I replaced Q3, U1 and the ADEX mixer. Results? Transmit works FB as before > and the RX still has no sensitivity. No change at all. I ran through the > setup related to the RX section and one thing stands out. > > Part VIII: RX Input Alignment > Trimmer cap C1 has no effect on the AC voltage at the phone output > connector. This is the same result I had before replacing the 3 parts. > > I think I may be down to signal tracing starting at the N connector. But > without a list of test points and voltages, this may be a nonproductive > PITA. > __ Elecraft mailing list Home: Message delivered to qr...@roadrunner.com Links: -- [1] http://mailman.qth.net/mmfaq.htm http://mailman.qth.net/mmfaq.htm /> Post: mailto:Elecraft@mailman.qth.net This list hosted by: 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Cheap Keyer Paddle
A sleeper of a paddle is the Whiterook MK-44 from electronicsusa.com. I hesitate to call it a cheap paddle, as that tends to refer to an inferior product. It is a robust, affordable, lightweight paddle that will continue to work even after you throw it at a wall. For a few pennies, you can add a velcro leg strap to it for field use. Whiterook also offers the TiCK keyer to this same paddle, called the MK-64. I have been running both the paddle and the paddle/keyer for nearly twenty years and they have proven to be a joy to use. I was drawn to the MK-64 paddle/keyer for use in the monthly Spartan Sprint activity for its extremely low weight and low current. I still have the same coin cell in it that I installed nearly twenty years ago. They offer other products, single lever paddles, straight keys, combos. They will certainly not break the bank. 72, Howard Kraus, K2UD __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] stripping insulation from enamel wires
The old tried and true method is to use an X-acto knife to scrape the insulation off with. Simple, not very elegant but it always works. 72 Howard Kraus, K2UD -From: "Robert G Strickland via Elecraft" To: elecraft@mailman.qth.net Cc: Sent: Friday June 12 2020 10:03:58AM Subject: [Elecraft] stripping insulation from enamel wires Here's an old problem that I've never solved: how to strip the enamel insulation from wires for winding toroids. The instruction say: -dip in a solder pot which I don't have -use a soldering iron to, presumably, burn the insulation off which has never worked for me. Leaving soldering pots aside, the hot iron approach has never burned off any insulation even with tip temp's hovering around 1000F. Just doesn't happen. Maybe it's the soldering iron, maybe my method, but whichever, the enamel insulation just sits there. I end up using a file to scrape off the insulation which is tough on the wires and hard to predict when enough is enough. Any insightful hints? Thanks much. ..robert -- Robert G Strickland, PhD ABPH - KE2WY rc...@verizon.net.usa Syracuse, New York, USA __ Elecraft mailing list Home: Message delivered to qr...@roadrunner.com Links: -- [1] http://mailman.qth.net/mmfaq.htm http://mailman.qth.net/mmfaq.htm /> Post: mailto:Elecraft@mailman.qth.net This list hosted by: 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Here is an odd one...
I blame the squirrel. Howard Kraus, K2UD -From: "Dave Cole" To: "elecraft@mailman.qth.net" Cc: Sent: Sunday November 17 2019 6:35:12PM Subject: [Elecraft] Here is an odd one... We had a power failure, and when the power came back on, my K3 did not see, nor key my KPA500... It was working fine just prior to the power fail... We were not home when the power failed... The battery backup came on line and protected the K3 from the odd power spike, which I assume happen when a squirrel acts as a jumper for a 115KV line... But I digress... I returned from shopping, and took a set of readings on my background RFI levels on all bands, wrote them all down, and waited for the power to return... Upon power return, the KPA500 seemed totally disconnected from my K3. No KPA500 on the K3 when it comes on, and no OPERATE message when I switch out of standby... No keying of course either... Some troubleshooting later, I find the data cable plugged into the AUX connector of the K3 has dropped out... Go figure, no one was even home... Last time I fail to screw in the locking pins... -- 73, and thanks, Dave (NK7Z) https://www.nk7z.net [1] ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources __ Elecraft mailing list Home: Message delivered to qr...@roadrunner.com Links: -- [1] https://www.nk7z.net [2] http://mailman.qth.net/mmfaq.htm http://mailman.qth.net/mmfaq.htm /> Post: mailto:Elecraft@mailman.qth.net This list hosted by: 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] K4 full duplex?
I have the same question and begged Elecraft to produce a satellite compatible rig. The answer I am thinking is, no. It seems only one antenna port is dedicated to VHF/UHF. I hope I am wrong, would love to hear from Eric or Wayne on this. 72 Howard Kraus, K2UD "kb2mj...@att.net" wrote: > The question of the day on the AMSAT group is. > > > > when will the 2m 70cm module be available, and also is it going to be > fullduplex ? > > > > > > 73 Jeff kb2m > > __ > 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] K4 - VHF/UHF
It also had a 435 MHz module, with space for two more. It was ready for satellite use from the factory. 72 Howard Kraus, K2UD "Dave New wrote: > That's a Yaesu FT-726r > > It came with a 2m module, and had space for two more. > > Haven't seen anything like it since. > > 73, > > -- Dave, N8SBE > > Original Message > Subject: Re: [Elecraft] K4 - VHF/UHF > From: Harry Yingst via Elecraft > Date: Tue, May 07, 2019 1:18 pm > To: elecraft@mailman.qth.net > > At one point I considered buying a second K3 and installingsmall > transverters where the 100w PA would typically go. > > I would like to see a matching box that had Transvertermodules that you > could insert for the various bands. > > > > > On Monday, May 6, 2019, 4:21:27 PM EDT, wrote: > > Will there ever be a VHF/UHF radio? I'm sure because of the cost factor > there would a limitation. The interest would be the next question. Had > to > ask... > > Brian > K1DIH > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
[Elecraft] OT: RTTY Nostalgia
The KX2 will fit in a pocket. The KX3 will fit in, er, a bigger pocket. You hardly know they are there. Neither one requires oil or paper and barely make any noise. My old 28ASR fit in the back of a pickup and weighed 260 lbs. How do I know that? 72 Howard Kraus, K2UD __ 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] Legacy = Low Latency: FSK-D mode
Wayne, Please consider adding a feature in the next KX3 (and others) update-the ability to turn diddle on or off during during idle input from the paddle or terminal. Please, please! 72 Howard Kraus, K2UD Wayne Burdick wrote: > If you're a new owner of a K3, K3S, KX3 or KX2 -- or if, like most of us, you > never quite made it all the way through the owner's manual -- you might not > have tried our FSK-D mode. This is one of our favorite features. It gives you > an amazingly simple way to dabble in amateur radio's original yet still > actively used data mode: RTTY. As embodied in our FSK-D mode, RTTY has two > major advantages over FT8, JT9, and similar computer-mediated modes...but > first some background. > > * * * > > RTTY (radio teletype) has a long, colorful history. The basic encoding and > transmission methods were invented in the 1800s, and were later used by > wireline news services as well as for wartime comms. It has been in use by > hams since around the end of WWII, who took advantage of surplus military > teleprinters. For more on this, see: > >en.wikipedia.org/wiki/Radioteletype#Early_amateur_radioteletype_history > > As a teenager in the 1970s I had a Teletype Corp Model 15. This page shows > some examples of what this beast looked like: > >http://www.baudot.net/teletype/M15.htm > > In my shack, the Model 15 and all of its associated paraphernalia took up > most of a workbench. It made a huge racket and consumed reams of paper, not > to mention oil. Sadly, I never did get everything working properly and never > made an QSO with it. Yet my fascination with RTTY continued. > > When we designed the K3, my interest was rekindled, and we endowed it with > the ability to decode and encode 45-baud RTTY signals. The DSP handled > demodulation, while the MCU assembled character bit streams. (We later added > 75-baud RTTY as well as PSK31 and PSK63 modes.) > > Lyle Johnson (KK7P) and I had quite a bit of fun when we first got decode > working. Speaking strictly for both of us, tuning around between 14.080 and > 14.100 during an RTTY contest was like being a teenager all over again. We > quickly added the ability to transmit in this mode using the CW keyer paddle > and message memories. The upshot is that I finally had my first RTTY QSO, > doing it the hard way -- writing a good chunk of the firmware that made it > possible. > > Here's the importing thing: our K-Line/KX-Line implementation of RTTY makes > it incredibly simple to use. It's nearly foolproof. The setup details vary a > bit among the rigs, but basically you select DATA mode, then FSK-D sub-mode, > and turn text decode on. Then just tune around in the RTTY band segments > until you see signals start to decode. > > If you're a CW op, you can immediately transmit in RTTY mode by simply > sending CW. If not, you can connect a netbook or laptop to your rig (via a > USB port), then use the Terminal window in K3/KX3/KX2 Utility along with the > keyboard. The Utility for each rig includes instructions for using the > Terminal window. > > * * * > > Earlier I claimed that RTTY operation using our FSK-D mode has some > advantages over FT8, etc. Here they are: > > 1. You don't necessarily need a computer. Decoded and encoded text scrolls > across the radio's display. At your home station, this is great for simply > tuning around casually; no need to turn on the computer or set up software > applications. It's an even bigger advantage for field operation. With the KX3 > or KX2, you can use RTTY (or PSK31/63) from essentially anywhere, even > operating hand-held. During Field Day and RTTY contests, I make a point of > taking a hike and making a few RTTY Q's pedestrian mobile (/PM). When a band > is open, you can work the world in these modes. (For some of us, it doesn't > get much better than this :) > > 2. Our FSK-D and PSK-D modes are *conversational*, with no restrictions on > what you can send, no software delays or time synchronization, no > predetermined frequencies, and a natural style of interaction as with CW or > SSB. The receiver is automatically configured for a narrow passband, so you > simply tune in a signal until you start seeing decoded text -- often a CQ -- > then respond with the keyer paddle, or with the keyboard on your > netbook/laptop, if applicable. > > As you can see, we've come a long way from the Model 15, paper, oil, noise, > and complex terminal hardware. In addition to using the display on the rig > itself, our panadapters can be used. Text can be displayed on our P3-SVGA > display, as well as on the PX3. A keyboard can be connected to either the P3 > or PX3. > > Next time you're listening on 20 meters, the most popular band for RTTY, take > a quick spin above 14.080. If you hear some of those magical tones, turn on > FSK-D mode and give this mode a try. > > Many DXpeditions have an RTTY station operating during some periods, so
