Re: Topband: LDEs, witches and magicians
Some time in the last decade, out at NY4A in the CQ WW DX CW, on 40 meters, I started hearing CW that I initially thought someone was sending over the top of me, mocking me. I sent an FU. and got an FU back. Then the lights went on in my fatigue-soddened brain. I sent a spastic random twiddle-diddle of dots and dashes and got the exact same thing back. Probably sending my usual 28 WPM, I would switch into RX hearing "A NY4A" sending on top of me when I stopped after a CQ, or U NY4A after a Q, or NN 05 after sending the exchange. The signal went on for nearly a half hour, and was 20 over 9 until it suddenly diminished to nothing inside of a minute. At the next PVRC chapter meeting, others reported something similar at the same time. Have heard a lot of explanations for it, but honestly can neither dispute nor lend support to any of them. I only know for sure that every now and then it happens on a time of its own picking. 73, Guy On Thu, Mar 2, 2017 at 10:05 AM, Gary Smithwrote: > It has not been recently but in the past I > have heard my signals, it was around the > year 1990, I was on CW and I had been a > ham about 10 years at the time. I remember > hearing a faint mirror of everything I > sent and very disconcerting to focusing on > sending properly. > > I do not recall the band I was on but I do > remember I was working EU at the time, > most likely using a G5RV & I was in > Missouri. I've never experienced this > since. > > 73, > > Gary > KA1J > _ > Topband Reflector Archives - http://www.contesting.com/_topband > _ Topband Reflector Archives - http://www.contesting.com/_topband
Re: Topband: LDEs, witches and magicians
It has not been recently but in the past I have heard my signals, it was around the year 1990, I was on CW and I had been a ham about 10 years at the time. I remember hearing a faint mirror of everything I sent and very disconcerting to focusing on sending properly. I do not recall the band I was on but I do remember I was working EU at the time, most likely using a G5RV & I was in Missouri. I've never experienced this since. 73, Gary KA1J _ Topband Reflector Archives - http://www.contesting.com/_topband
Re: Topband: LDEs, witches and magicians
Lee and the group, Reports of LDEs have always fascinated me. The only echos I have heard were probably round-the-world or auroral distortions on high power 20 meter SSB stations. I am trying to do an analysis of the reported LDEs on 160 and 80 meters with echo times in the hundreds of milliseconds. Can you provide me with the following information on your experiences: 1. Callsign of transmitting station and TX power, frequency and mode. Also, was QSK in use? 2. Location (latitude and longitude or grid square of transmitting station). 3. UT Date and time of LDE 4. Callsign(s) and location(s) of receiving station(s). Was the echo only heard by relatively nearby stations? 5. TX and RX antennas of all stations (N6TR's recent comment about stronger echos with a low dipole was very interesting) 6. Estimated time delay of the echo 7. Estimated duration of the time the LDE was heard (just once, minutes, hours, etc.) 8. Was there any frequency shift between the transmission and the echo? 9. Any other anecdotal information about the event. Please reply to me privately in order not to clog up the reflector. I will summarize the reports and make a posting back to the reflector later. 73, Walt, AJ6T On 2/8/2017 9:41 AM, Lee STRAHAN wrote: Greetings All, I am afraid I have to take issue with you Wolf. And this may be a clue. I also have experienced echoes on 160 meters. Maybe it depends on longitude or latitude or something like that. N6TR not being too far away has also experienced them. All that being said I am positive due to my observations that a short delay has occurred here twice. During the one event one station sent me a message asking what was wrong with my signal. Tests confirmed there was nothing wrong with the signal and the echoes slowly faded away. Unfortunately I did not have the presence of mind to determine directionality or make a recording. The echoes were quite strong and lasted for several minutes. Guessing would put them at less than 100 mSec separation. My first thought at the time was that my receiving array was failing in some strange mode but that was definitely not the case. Lee K7TJR OR -Original Message- From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Dr. Wolf Ostwald Sent: Tuesday, February 07, 2017 10:15 PM To: topband@contesting.com Subject: Topband: LDEs, witches and magicians hello reflectees, i never ever experienced echoes on 160. And i do a lot of transmitting and have relatively sensitive rx systems. Given the laws of field expansion and attenuation i consider it a hoax. I have had round the globe echoes on 20m. But was using 6 el monobander with power and at the rite time, when we had greyline. Sometimes 2 to three rounds. That was physically explainable. Anything else is from the land of Alice. 73 de wolf df2py _ Topband Reflector Archives - http://www.contesting.com/_topband _ Topband Reflector Archives - http://www.contesting.com/_topband _ Topband Reflector Archives - http://www.contesting.com/_topband
Re: Topband: LDEs, witches and magicians
Greetings All, I am afraid I have to take issue with you Wolf. And this may be a clue. I also have experienced echoes on 160 meters. Maybe it depends on longitude or latitude or something like that. N6TR not being too far away has also experienced them. All that being said I am positive due to my observations that a short delay has occurred here twice. During the one event one station sent me a message asking what was wrong with my signal. Tests confirmed there was nothing wrong with the signal and the echoes slowly faded away. Unfortunately I did not have the presence of mind to determine directionality or make a recording. The echoes were quite strong and lasted for several minutes. Guessing would put them at less than 100 mSec separation. My first thought at the time was that my receiving array was failing in some strange mode but that was definitely not the case. Lee K7TJR OR -Original Message- From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Dr. Wolf Ostwald Sent: Tuesday, February 07, 2017 10:15 PM To: topband@contesting.com Subject: Topband: LDEs, witches and magicians hello reflectees, i never ever experienced echoes on 160. And i do a lot of transmitting and have relatively sensitive rx systems. Given the laws of field expansion and attenuation i consider it a hoax. I have had round the globe echoes on 20m. But was using 6 el monobander with power and at the rite time, when we had greyline. Sometimes 2 to three rounds. That was physically explainable. Anything else is from the land of Alice. 73 de wolf df2py _ Topband Reflector Archives - http://www.contesting.com/_topband _ Topband Reflector Archives - http://www.contesting.com/_topband
Re: Topband: LDEs, witches and magicians
Dear Dr Ostwald, Even though I have not experienced any echoes on HF,I think I will keep an open mind.We cannot even explain a weak force like gravity completely, after many years of ongoing research.Who are we to say that LDS belong in fairy tale? :-)After all, we are receiving echoes of the big bang in the microwave background, so what is a few hours between friends on 160m ? :-) Regards,Raoul ZS1C From: Dr. Wolf OstwaldTo: topband@contesting.com Sent: Wednesday, February 8, 2017 8:15 AM Subject: Topband: LDEs, witches and magicians hello reflectees, i never ever experienced echoes on 160. And i do a lot of transmitting and have relatively sensitive rx systems. Given the laws of field expansion and attenuation i consider it a hoax. I have had round the globe echoes on 20m. But was using 6 el monobander with power and at the rite time, when we had greyline. Sometimes 2 to three rounds. That was physically explainable. Anything else is from the land of Alice. 73 de wolf df2py _ Topband Reflector Archives - http://www.contesting.com/_topband _ Topband Reflector Archives - http://www.contesting.com/_topband