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20meter propagation question...
Greetings. I've only been a ham for a couple years. Not really done anything
w/ it however. Just homebrewed a thing or two, but never made any QSO's. I just acquired a 5w 20m rig (all my budget could allow). Can someone give me any tips on how to know when 20m is open? What time of year or time of day is typically good for 20? I tried looking over some MUF charts... but its greek to me at this point. I've tried googling, but unless I know exactly how to phrase my search, I'm coming up empty... Any pointers would be great. Thanks Jim KC9FFX |
20meter propagation question...
"J Shrum" wrote in message ... Greetings. I've only been a ham for a couple years. Not really done anything w/ it however. Just homebrewed a thing or two, but never made any QSO's. I just acquired a 5w 20m rig (all my budget could allow). Can someone give me any tips on how to know when 20m is open? What time of year or time of day is typically good for 20? I tried looking over some MUF charts... but its greek to me at this point. I've tried googling, but unless I know exactly how to phrase my search, I'm coming up empty... Any pointers would be great. Thanks Jim KC9FFX Turn the rig on and listen. 20 meters is open about any time of the year especially during the daylight hours. |
20meter propagation question...
hi jim,
you should be able to copy wwv at 14.000 mhz anytime, what type of antenna are you using (dipole, long wire) tuner also ? How high is your antenna ? 73 wendy J Shrum wrote: Greetings. I've only been a ham for a couple years. Not really done anything w/ it however. Just homebrewed a thing or two, but never made any QSO's. I just acquired a 5w 20m rig (all my budget could allow). Can someone give me any tips on how to know when 20m is open? What time of year or time of day is typically good for 20? I tried looking over some MUF charts... but its greek to me at this point. I've tried googling, but unless I know exactly how to phrase my search, I'm coming up empty... Any pointers would be great. Thanks Jim KC9FFX |
20meter propagation question...
J Shrum wrote:
Greetings. I've only been a ham for a couple years. Not really done anything w/ it however. Just homebrewed a thing or two, but never made any QSO's. I just acquired a 5w 20m rig (all my budget could allow). Can someone give me any tips on how to know when 20m is open? What time of year or time of day is typically good for 20? As a **VERY** general rule 20m is open pretty much every day pretty much all day long and an hour or two into the evening. (many nights it will stay open considerably later) -- Doug Smith W9WI Pleasant View (Nashville), TN EM66 http://www.w9wi.com |
20meter propagation question...
wendy wrote:
hi jim, you should be able to copy wwv at 14.000 mhz anytime, Ouch! Try 15.000 Mhz. -Bill |
20meter propagation question...
You can tell where 20M is open world wide by using the NCDXF/IARU beacon
system See URL: http://www.ncdxf.org/Beacon/intro.html Specifically 14.100 MHz If the morse code is too fast -- see URL: http://www.ncdxf.org/Beacon/BeaconPrograms.html For programs that will tell which beacons are transmitting Be sure your computer clock is accurate to within a fraction of a second -- See URL: http://www.locutuscodeware.com/swatch.htm -- CL -- I doubt, therefore I might be ! "J Shrum" wrote in message ... Greetings. I've only been a ham for a couple years. Not really done anything w/ it however. Just homebrewed a thing or two, but never made any QSO's. I just acquired a 5w 20m rig (all my budget could allow). Can someone give me any tips on how to know when 20m is open? What time of year or time of day is typically good for 20? I tried looking over some MUF charts... but its greek to me at this point. I've tried googling, but unless I know exactly how to phrase my search, I'm coming up empty... Any pointers would be great. Thanks Jim KC9FFX |
20meter propagation question...
you should be able to copy wwv at 14.000 mhz anytime,
(15MHz and a little QRP transceiver probably isn't a general coverage receiver but...) Not that easy here on the East Coast. Pretty reliable when there's daytime on one end or the other or both, but a fair bit of fluctuation. Tim. |
20meter propagation question...
Caveat Lector wrote: You can tell where 20M is open world wide by using the NCDXF/IARU beacon system See URL: http://www.ncdxf.org/Beacon/intro.html Specifically 14.100 MHz If the morse code is too fast -- you need to read the code if the question is the band open at all indeed I listen for beacons on 6m myself and code at any speed is too fast but if I can hear em esp if I can a bunch of em the band my well be open enough to use see URL: http://www.ncdxf.org/Beacon/BeaconPrograms.html For programs that will tell which beacons are transmitting Be sure your computer clock is accurate to within a fraction of a second -- See URL: http://www.locutuscodeware.com/swatch.htm -- CL -- I doubt, therefore I might be ! "J Shrum" wrote in message ... Greetings. I've only been a ham for a couple years. Not really done anything w/ it however. Just homebrewed a thing or two, but never made any QSO's. I just acquired a 5w 20m rig (all my budget could allow). Can someone give me any tips on how to know when 20m is open? What time of year or time of day is typically good for 20? I tried looking over some MUF charts... but its greek to me at this point. I've tried googling, but unless I know exactly how to phrase my search, I'm coming up empty... Any pointers would be great. Thanks Jim KC9FFX |
20meter propagation question...
Unlike 6M beacons which transmit continously on a specific frequency, the
NCDXF/IARU Beacon system has 18 beacons around the world transmitting on the same frequency in rotation. Please read URL: http://www.ncdxf.org/Beacon/BeaconSchedule.html You do not need to copy the beacon ID in Morse code, programs are available to ID the beacon transmitting. The program does not read the code, rather it is time based. That is your computer clock is precisely on time and the beacons are precisely on time also. The program shows a world map and which beacon is currently transmitting The NCDXF/IARU system is a great propagation aid real time -- world wide. Further there are beacons systems on 14.100, 18.110, 21.150, 24.930, and 28.200 megaHertz. -- CL -- I doubt, therefore I might be ! "an_old_friend" wrote in message ups.com... Caveat Lector wrote: You can tell where 20M is open world wide by using the NCDXF/IARU beacon system See URL: http://www.ncdxf.org/Beacon/intro.html Specifically 14.100 MHz If the morse code is too fast -- you need to read the code if the question is the band open at all indeed I listen for beacons on 6m myself and code at any speed is too fast but if I can hear em esp if I can a bunch of em the band my well be open enough to use see URL: http://www.ncdxf.org/Beacon/BeaconPrograms.html For programs that will tell which beacons are transmitting Be sure your computer clock is accurate to within a fraction of a second -- See URL: http://www.locutuscodeware.com/swatch.htm -- CL -- I doubt, therefore I might be ! "J Shrum" wrote in message ... Greetings. I've only been a ham for a couple years. Not really done anything w/ it however. Just homebrewed a thing or two, but never made any QSO's. I just acquired a 5w 20m rig (all my budget could allow). Can someone give me any tips on how to know when 20m is open? What time of year or time of day is typically good for 20? I tried looking over some MUF charts... but its greek to me at this point. I've tried googling, but unless I know exactly how to phrase my search, I'm coming up empty... Any pointers would be great. Thanks Jim KC9FFX |
20meter propagation question...
On Mon, 24 Oct 2005 19:51:54 -0500, J Shrum wrote:
Greetings. I've only been a ham for a couple years. Not really done anything w/ it however. Just homebrewed a thing or two, but never made any QSO's. I just acquired a 5w 20m rig (all my budget could allow). Can someone give me any tips on how to know when 20m is open? What time of year or time of day is typically good for 20? Jim: 20M usually has signals readable almost ANY day from 6AM to 7PM from all over North America and sometimes beyond. Only in the worst propagation conditions can you not hear any signals. I suspect one of 3 things if you are asking this question: 1) you don't get on the air enough and listen for signals 2) your antenna is very bad, untuned, or in mineshaft 3) your receiver is almost dead. Check the band more often, check your antenna and check your receiver. Larry VE7EA |
20meter propagation question...
Thanks for all the replies folks... I work during the day, and haven't
really been listening except later in the night... so that would explain why its so quiet at night. I took a quick listen during the day today... and oh yeah, big difference. Thanks for the help folks.. "Larry Gagnon" wrote in message om... On Mon, 24 Oct 2005 19:51:54 -0500, J Shrum wrote: Greetings. I've only been a ham for a couple years. Not really done anything w/ it however. Just homebrewed a thing or two, but never made any QSO's. I just acquired a 5w 20m rig (all my budget could allow). Can someone give me any tips on how to know when 20m is open? What time of year or time of day is typically good for 20? Jim: 20M usually has signals readable almost ANY day from 6AM to 7PM from all over North America and sometimes beyond. Only in the worst propagation conditions can you not hear any signals. I suspect one of 3 things if you are asking this question: 1) you don't get on the air enough and listen for signals 2) your antenna is very bad, untuned, or in mineshaft 3) your receiver is almost dead. Check the band more often, check your antenna and check your receiver. Larry VE7EA |
20meter propagation question...
LISTEN TO THE NCDXF/IARU BEACONS -- THEY RUN 24 HOURS A DAY
-- CL -- I doubt, therefore I might be ! "J Shrum" wrote in message ... Thanks for all the replies folks... I work during the day, and haven't really been listening except later in the night... so that would explain why its so quiet at night. I took a quick listen during the day today... and oh yeah, big difference. Thanks for the help folks.. "Larry Gagnon" wrote in message om... On Mon, 24 Oct 2005 19:51:54 -0500, J Shrum wrote: Greetings. I've only been a ham for a couple years. Not really done anything w/ it however. Just homebrewed a thing or two, but never made any QSO's. I just acquired a 5w 20m rig (all my budget could allow). Can someone give me any tips on how to know when 20m is open? What time of year or time of day is typically good for 20? Jim: 20M usually has signals readable almost ANY day from 6AM to 7PM from all over North America and sometimes beyond. Only in the worst propagation conditions can you not hear any signals. I suspect one of 3 things if you are asking this question: 1) you don't get on the air enough and listen for signals 2) your antenna is very bad, untuned, or in mineshaft 3) your receiver is almost dead. Check the band more often, check your antenna and check your receiver. Larry VE7EA |
20meter propagation question...
Sorry Wendy... must of been a typo, right? WWV is on 15 Mhz.
Dan/W4NTI "wendy" wrote in message ... hi jim, you should be able to copy wwv at 14.000 mhz anytime, what type of antenna are you using (dipole, long wire) tuner also ? How high is your antenna ? 73 wendy J Shrum wrote: Greetings. I've only been a ham for a couple years. Not really done anything w/ it however. Just homebrewed a thing or two, but never made any QSO's. I just acquired a 5w 20m rig (all my budget could allow). Can someone give me any tips on how to know when 20m is open? What time of year or time of day is typically good for 20? I tried looking over some MUF charts... but its greek to me at this point. I've tried googling, but unless I know exactly how to phrase my search, I'm coming up empty... Any pointers would be great. Thanks Jim KC9FFX |
20meter propagation question...
Dan/W4NTI wrote:
Sorry Wendy... must of been a typo, right? WWV is on 15 Mhz. Unless the receiver is really out of alignment! ;-) -- ? Michael A. Terrell Central Florida |
20meter propagation question...
Michael A. Terrell wrote:
Dan/W4NTI wrote: Sorry Wendy... must of been a typo, right? WWV is on 15 Mhz. Unless the receiver is really out of alignment! ;-) well, the IF image on many 'lesser' general coverage rigs with 455 kc IF would fall within a pointer width of 14000 so the OP may have been correct with his statement. :) -Bill |
20meter propagation question...
Bill ) writes: Michael A. Terrell wrote: Dan/W4NTI wrote: Sorry Wendy... must of been a typo, right? WWV is on 15 Mhz. Unless the receiver is really out of alignment! ;-) well, the IF image on many 'lesser' general coverage rigs with 455 kc IF would fall within a pointer width of 14000 so the OP may have been correct with his statement. :) -Bill And of course, the receivers that had such bad image rejection tended to have lousy dial calibration too. Michael VE2BVW |
20meter propagation question...
Michael Black wrote:
Bill ) writes: Michael A. Terrell wrote: Dan/W4NTI wrote: Sorry Wendy... must of been a typo, right? WWV is on 15 Mhz. Unless the receiver is really out of alignment! ;-) well, the IF image on many 'lesser' general coverage rigs with 455 kc IF would fall within a pointer width of 14000 so the OP may have been correct with his statement. :) -Bill And of course, the receivers that had such bad image rejection tended to have lousy dial calibration too. As in "WWV comes in from 14.35 to 15.60, roughly." I had one of those. -- (About Cobalt): They're not servers. They're Fisher-Price toys with delusions of grandeur. One of these days, I'm expecting someone to enter my office with a pull-along version of the Qube. playing a silly little tune as it rolls through the door... -- Chris King, in the Monastery |
20meter propagation question...
Jim
20 meters is mostly a daytime band, especially now that we are near the bottom of the sunspot cycle. What that means, though, is daylight at midpath, and on 20, paths tend to be long (even for QRP). So if the sun is overhead say, 500 miles from you, there is a decent chance of hearing something. Depending on how far up in 9-land you are, 20 may close fairly early. However, up here in the frozen north, there is often over the pole propagation that seems to open up an hour or two after the band "closes". If you listen during the day, you will hear the signals shift from the east to the west with the sun. When all you can hear is California, the band will probably be closing soon. But then again, depending on all sorts of vagaries, it may soon be time to listen for Hawaii, Japan or Australia. Don't be afraid to make a call. On 20 CW, 5 watts is more than enough. 20 is a fairly quiet band, and QRP signals don't get absorbed the way they do on the lower frequencies. Once I tried a contest at a half a watt, and my QSO rates were barely different than at 5 which in turn really weren't noticably different than 100. They did fall off as I started to approach a tenth, though. This is with a dipole at about 30 feet - nothing fancy. Early morning is nice for Europe. Midday the states. Sunset look for South America. If you keep an eye on the propagation numbers, here are a few clues. The "flux" as it applies to 20 really has to do with how CLOSE you can talk. You will find that contacts closer than about 500 miles are tough on 20 unless the flux is high. A high flux might also help 20 stay open a little longer after the sun sets. The K index jumping tends to indicate that we have taken a hit from a burp the sun has made. An intial rapid rise will mean the bands will be very noisy for a short while, but in an hour or two propagation will suddenly get very good for a little while. Then, a few days later, we -might- get hit with the follow on, which will essentially shut things down for a day. Whether we get hit depends on the exact place on the sun that burped. The initial radiation blast travels very quickly to earth, and the matter that follows takes a lot longer. Thats why the multi-day delay. The initial radiation blast causes the earth's magnetic field to rock and roll for a few hours, which is why the noise. When it settles down, though, the ionosphere is ionized as if the flux were high. Then when the matter reaches earth (if it does) it will badly distort the magnetic field for a day or sometimes more, making for very bad conditions. If you can find some writings by Paul Harden, read them. This guy has lots of great stuff on propagation. ... "J Shrum" wrote in message ... Greetings. I've only been a ham for a couple years. Not really done anything w/ it however. Just homebrewed a thing or two, but never made any QSO's. I just acquired a 5w 20m rig (all my budget could allow). Can someone give me any tips on how to know when 20m is open? What time of year or time of day is typically good for 20? I tried looking over some MUF charts... but its greek to me at this point. I've tried googling, but unless I know exactly how to phrase my search, I'm coming up empty... Any pointers would be great. Thanks Jim KC9FFX |
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