FCC Proposes to Permit Amateur Access to 2200 and 630 Meters
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FCC Proposes to Permit Amateur Access to 2200 and 630 Meters
 
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Now we just need a TX solution to go with the new synths!
Jim ab3cv http://www.arrl.org/news/fcc-proposes-to-permit-amateur-access-to-2200-and-630-meters ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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I think patience is in order for the 630 m allocation. I'll bet "BND
END" will go away and the K3's will transmit once the FCC has formally acted and it has been published in the Fed Reg. Filters in the TX chain might require some mods of course. Depending on what the ultimate Part 97 rules say about this allocation regarding antenna size, height, power limits, and required EIRP computations, 100 W from a KPA3 into a compliant antenna could be QRPpp in EIRP. :-) 2200 m is another issue. Sensitivity on my K3 with the new synthesizer is just as Wayne said it would be ... low. There's also a LOT of noise down there, or at least there is where I live. I noticed that years ago when we were experimenting with LORAN-C aircraft receivers for locating busses and I had one in my truck [a receiver, not a bus] for a month or two. At 100 KHz, railroad tracks have some strange effects also. 73, Fred K6DGW - Northern California Contest Club - CU in the 50th Running of the Cal QSO Party 3-4 Oct 2015 - www.cqp.org On 4/28/2015 4:16 PM, Jim Miller wrote: > Now we just need a TX solution to go with the new synths! > > Jim ab3cv ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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In reply to this post by Jim Miller
It would also be good to see something in the 1750M (LowFer) band 160-190
KHz. Jay W6CJ -----Original Message----- From: Elecraft [mailto:[hidden email]] On Behalf Of Jim Miller Sent: Tuesday, April 28, 2015 16:16 To: [hidden email] Subject: [Elecraft] FCC Proposes to Permit Amateur Access to 2200 and 630 Meters Now we just need a TX solution to go with the new synths! Jim ab3cv http://www.arrl.org/news/fcc-proposes-to-permit-amateur-access-to-2200-and-6 30-meters ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: FCC Proposes to Permit Amateur Access to 2200 and 630 Meters
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In reply to this post by k6dgw
I think many of the 630m crowd are doing fine with 100w and 5% antennas
Jim ab3cv On Apr 28, 2015, at 7:41 PM, Fred Jensen <[hidden email]> wrote: I think patience is in order for the 630 m allocation. I'll bet "BND END" will go away and the K3's will transmit once the FCC has formally acted and it has been published in the Fed Reg. Filters in the TX chain might require some mods of course. Depending on what the ultimate Part 97 rules say about this allocation regarding antenna size, height, power limits, and required EIRP computations, 100 W from a KPA3 into a compliant antenna could be QRPpp in EIRP. :-) 2200 m is another issue. Sensitivity on my K3 with the new synthesizer is just as Wayne said it would be ... low. There's also a LOT of noise down there, or at least there is where I live. I noticed that years ago when we were experimenting with LORAN-C aircraft receivers for locating busses and I had one in my truck [a receiver, not a bus] for a month or two. At 100 KHz, railroad tracks have some strange effects also. 73, Fred K6DGW - Northern California Contest Club - CU in the 50th Running of the Cal QSO Party 3-4 Oct 2015 - www.cqp.org > On 4/28/2015 4:16 PM, Jim Miller wrote: > Now we just need a TX solution to go with the new synths! > > Jim ab3cv ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: FCC Proposes to Permit Amateur Access to 2200 and 630 Meters
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One more point. Both the second and third harmonic of a 630m signal fall in the AM BC band so attention to detail is important.
Jim ab3cv On Apr 28, 2015, at 10:27 PM, Jim Miller <[hidden email]> wrote: I think many of the 630m crowd are doing fine with 100w and 5% antennas Jim ab3cv On Apr 28, 2015, at 7:41 PM, Fred Jensen <[hidden email]> wrote: I think patience is in order for the 630 m allocation. I'll bet "BND END" will go away and the K3's will transmit once the FCC has formally acted and it has been published in the Fed Reg. Filters in the TX chain might require some mods of course. Depending on what the ultimate Part 97 rules say about this allocation regarding antenna size, height, power limits, and required EIRP computations, 100 W from a KPA3 into a compliant antenna could be QRPpp in EIRP. :-) 2200 m is another issue. Sensitivity on my K3 with the new synthesizer is just as Wayne said it would be ... low. There's also a LOT of noise down there, or at least there is where I live. I noticed that years ago when we were experimenting with LORAN-C aircraft receivers for locating busses and I had one in my truck [a receiver, not a bus] for a month or two. At 100 KHz, railroad tracks have some strange effects also. 73, Fred K6DGW - Northern California Contest Club - CU in the 50th Running of the Cal QSO Party 3-4 Oct 2015 - www.cqp.org > On 4/28/2015 4:16 PM, Jim Miller wrote: > Now we just need a TX solution to go with the new synths! > > Jim ab3cv ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: FCC Proposes to Permit Amateur Access to 2200 and 630 Meters
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In reply to this post by Jim Miller
Old topic (getting caught up on my e-mail since being on 12-day vacation):
I have been using my K3/10 since 2010 on 630m (have both KXV3 and KBPF3 installed). TEST mode allows transmission thru transverter I/F at 0.1-1.5mw and reception down to 490-KHz with original SYNTH. I use my K3 to drive a surplus NDB transmitter at 0.1mw in place of the xtal osc section to get 100w output. I use a 43-foot by 122-foot inverted-L with short ground radials to achieve about 3w ERP. Furthest reception of my CW has been Buffalo, NY. I have received signals from Oregon and BC here in grid BP40 (Alaska). The new SYNTH will enable use to 472-KHz/478-KHz which is the proposed band for ham use. I am authorized to transmit thru license with WD2XSH/45 (ARRL Experimental Group). I use either my K3 or a SDR-IQ as Rx on 630m achieving down to -115 dBm reception (lowest noise floor using the Inv-L). I have run both CW and WSPR. Antenna currently down by wind breakage (minor). I support my inv-L by two 50-foot towers separated 130-foot apart. My signal is received 70-mi away at 35 dB SNR by ground-wave 24/7/365. Ground wave appears to be solid out to 250mi. Sky wave is night-time prop and best in winter when atmospheric static is lowest. 73, Ed - KL7UW http://www.kl7uw.com "Kits made by KL7UW" Dubus Mag business: [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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Many years ago, when 600 meters was the world's party line, ground wave
was usable out to maybe 700-750 nm [around 800 sm]. Ships ran 200 - 500 watts usually and were somewhat antenna restricted for that frequency. Conversely, we ran 5 KW to very large, efficient antennas, and we had the advantage of great Beverages for receiving. Of course, that was essentially a 100% sea water path too. 73, Fred K6DGW - Northern California Contest Club - CU in the 50th Running of the Cal QSO Party 3-4 Oct 2015 - www.cqp.org On 5/5/2015 12:21 AM, Edward R Cole wrote: > Antenna currently down by wind breakage (minor). I support my inv-L by > two 50-foot towers separated 130-foot apart. My signal is received > 70-mi away at 35 dB SNR by ground-wave 24/7/365. Ground wave appears to > be solid out to 250mi. Sky wave is night-time prop and best in winter > when atmospheric static is lowest. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: FCC Proposes to Permit Amateur Access to 2200 and 630 Meters
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Hi Fred,
Here in Europe on 630m, we often did groundwave QSO of 600-800 Km in the middle of day and the whole route is over the ground, not over sea water with strong and stable signal. Normally QSO between northern Germany and the central and southern Italy During the night there may be a deep QSB due phase sum of groundwave and skywave especially at distances around 600-800 Km. At distances below these prevails ground wave component, at greater distances prevails skywave. I have not experience of groundwave QSO over the sea water, probably the efficiency is better than over the ground. Here a video of groundwave reception: https://www.youtube.com/watch?v=7sdXjyfibz8 Of course the signal is better during the night via skywave: https://www.youtube.com/watch?v=LLkclDrrvOg The distance between I and Stefan is about 600 Km. 73, Fausto IK4NMF ----- Original Message ----- From: "Fred Jensen" <[hidden email]> To: <[hidden email]> Sent: Tuesday, May 05, 2015 11:30 PM Subject: Re: [Elecraft] FCC Proposes to Permit Amateur Access to 2200 and 630 Meters > Many years ago, when 600 meters was the world's party line, ground wave > was usable out to maybe 700-750 nm [around 800 sm]. Ships ran 200 - 500 > watts usually and were somewhat antenna restricted for that frequency. > Conversely, we ran 5 KW to very large, efficient antennas, and we had the > advantage of great Beverages for receiving. > > Of course, that was essentially a 100% sea water path too. > > 73, > > Fred K6DGW > - Northern California Contest Club > - CU in the 50th Running of the Cal QSO Party 3-4 Oct 2015 > - www.cqp.org > > On 5/5/2015 12:21 AM, Edward R Cole wrote: > >> Antenna currently down by wind breakage (minor). I support my inv-L by >> two 50-foot towers separated 130-foot apart. My signal is received >> 70-mi away at 35 dB SNR by ground-wave 24/7/365. Ground wave appears to >> be solid out to 250mi. Sky wave is night-time prop and best in winter >> when atmospheric static is lowest. > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] > > > ----- > Nessun virus nel messaggio. > Controllato da AVG - www.avg.com > Versione: 2015.0.5941 / Database dei virus: 4339/9700 - Data di rilascio: > 05/05/2015 > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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750 nautical miles is about 1,390 km. Ships would occasionally report
hearing us on MF beyond that, 5 KW and huge antennas helps, but we had a hard time hearing them beyond about 750 nm in the daylight, and it depended on the ship. I remember hearing NMO [Hawai'i] in daylight a few times, very weak. I have yet to actually hear any of the WSPR stations I'm logging with Joe Taylor's software, even using CW bandwidths. I'm logging the same 5 or 6 stations all night, sometimes with reported SNR's of -6 to -1. I've gotten up in the middle of the night to listen, I guess I just haven't gotten up at the right time, and I'm getting a little tired of it. :-) I haven't done Wayne's MF/LF mods yet, that may help some. 73, Fred K6DGW - Northern California Contest Club - CU in the 50th Running of the Cal QSO Party 3-4 Oct 2015 - www.cqp.org On 5/6/2015 12:00 AM, Fausto Coletti wrote: > Here in Europe on 630m, we often did groundwave QSO of 600-800 Km in the > middle of day > and the whole route is over the ground, not over sea water with strong > and stable signal. > Normally QSO between northern Germany and the central and southern Italy > During the night there may be a deep QSB due phase sum of groundwave and > skywave especially at distances around 600-800 Km. > At distances below these prevails ground wave component, at greater > distances prevails skywave. > I have not experience of groundwave QSO over the sea water, probably the > efficiency is better than over the ground. > Here a video of groundwave reception: > > https://www.youtube.com/watch?v=7sdXjyfibz8 > > Of course the signal is better during the night via skywave: > > https://www.youtube.com/watch?v=LLkclDrrvOg > > The distance between I and Stefan is about 600 Km. > > 73, Fausto IK4NMF > > ----- Original Message ----- From: "Fred Jensen" <[hidden email]> > To: <[hidden email]> > Sent: Tuesday, May 05, 2015 11:30 PM > Subject: Re: [Elecraft] FCC Proposes to Permit Amateur Access to 2200 > and 630 Meters > > >> Many years ago, when 600 meters was the world's party line, ground >> wave was usable out to maybe 700-750 nm [around 800 sm]. Ships ran >> 200 - 500 watts usually and were somewhat antenna restricted for that >> frequency. Conversely, we ran 5 KW to very large, efficient antennas, >> and we had the advantage of great Beverages for receiving. >> >> Of course, that was essentially a 100% sea water path too. >> >> 73, >> >> Fred K6DGW >> - Northern California Contest Club >> - CU in the 50th Running of the Cal QSO Party 3-4 Oct 2015 >> - www.cqp.org >> >> On 5/5/2015 12:21 AM, Edward R Cole wrote: >> >>> Antenna currently down by wind breakage (minor). I support my inv-L by >>> two 50-foot towers separated 130-foot apart. My signal is received >>> 70-mi away at 35 dB SNR by ground-wave 24/7/365. Ground wave appears to >>> be solid out to 250mi. Sky wave is night-time prop and best in winter >>> when atmospheric static is lowest. >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[hidden email] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to [hidden email] >> >> >> ----- >> Nessun virus nel messaggio. >> Controllato da AVG - www.avg.com >> Versione: 2015.0.5941 / Database dei virus: 4339/9700 - Data di >> rilascio: 05/05/2015 >> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] > > > ----- > No virus found in this message. > Checked by AVG - www.avg.com > Version: 2015.0.5863 / Virus Database: 4342/9711 - Release Date: 05/06/15 > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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You should just start to hear the WSPR sigs around -14 to -12 SNR 2.5
kHz b/w. Sounds like a carrier with a slight "wiggling". On 05/06/2015 07:56 PM, Fred Jensen wrote: > 750 nautical miles is about 1,390 km. Ships would occasionally report > hearing us on MF beyond that, 5 KW and huge antennas helps, but we had > a hard time hearing them beyond about 750 nm in the daylight, and it > depended on the ship. I remember hearing NMO [Hawai'i] in daylight a > few times, very weak. > > I have yet to actually hear any of the WSPR stations I'm logging with > Joe Taylor's software, even using CW bandwidths. I'm logging the same > 5 or 6 stations all night, sometimes with reported SNR's of -6 to -1. > I've gotten up in the middle of the night to listen, I guess I just > haven't gotten up at the right time, and I'm getting a little tired of > it. :-) > > I haven't done Wayne's MF/LF mods yet, that may help some. > > 73, > > Fred K6DGW > - Northern California Contest Club > - CU in the 50th Running of the Cal QSO Party 3-4 Oct 2015 > - www.cqp.org > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: FCC Proposes to Permit Amateur Access to 2200 and 630 Meters
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There's a website where you can listen to samples of all the modern digital
signals. I found it really fascinating to hear all those weird beeps and squeals of today's modes, even if I didn't want to actually use them. It allowed me to at least identify what I was hearing as either a real signal or just some strange RFI from a noisy device. Back in the 80's when I was playing with Baudot RTTY or Amtor, that's all there was and it was simple to tell the difference. Unfortunately, I forgot the name of the site, but it should be easy enough to find. 73, Charlie k3ICH ----- Original Message ----- From: "Eric NO3M" <[hidden email]> To: <[hidden email]> Sent: Wednesday, May 06, 2015 11:05 PM Subject: Re: [Elecraft] FCC Proposes to Permit Amateur Access to 2200 and 630 Meters > You should just start to hear the WSPR sigs around -14 to -12 SNR 2.5 kHz > b/w. Sounds like a carrier with a slight "wiggling". > > On 05/06/2015 07:56 PM, Fred Jensen wrote: >> 750 nautical miles is about 1,390 km. Ships would occasionally report >> hearing us on MF beyond that, 5 KW and huge antennas helps, but we had a >> hard time hearing them beyond about 750 nm in the daylight, and it >> depended on the ship. I remember hearing NMO [Hawai'i] in daylight a few >> times, very weak. >> >> I have yet to actually hear any of the WSPR stations I'm logging with Joe >> Taylor's software, even using CW bandwidths. I'm logging the same 5 or 6 >> stations all night, sometimes with reported SNR's of -6 to -1. I've >> gotten up in the middle of the night to listen, I guess I just haven't >> gotten up at the right time, and I'm getting a little tired of it. :-) >> >> I haven't done Wayne's MF/LF mods yet, that may help some. >> >> 73, >> >> Fred K6DGW >> - Northern California Contest Club >> - CU in the 50th Running of the Cal QSO Party 3-4 Oct 2015 >> - www.cqp.org >> >> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: FCC Proposes to Permit Amateur Access to 2200 and 630 Meters
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Here is one I found - www.kb9ukd.com/digital From: "Charlie T, K3ICH" <[hidden email]> To: [hidden email] Sent: Thursday, May 7, 2015 7:12 AM Subject: Re: [Elecraft] FCC Proposes to Permit Amateur Access to 2200 and 630 Meters There's a website where you can listen to samples of all the modern digital signals. I found it really fascinating to hear all those weird beeps and squeals of today's modes, even if I didn't want to actually use them. It allowed me to at least identify what I was hearing as either a real signal or just some strange RFI from a noisy device. Back in the 80's when I was playing with Baudot RTTY or Amtor, that's all there was and it was simple to tell the difference. Unfortunately, I forgot the name of the site, but it should be easy enough to find. 73, Charlie k3ICH ----- Original Message ----- From: "Eric NO3M" <[hidden email]> To: <[hidden email]> Sent: Wednesday, May 06, 2015 11:05 PM Subject: Re: [Elecraft] FCC Proposes to Permit Amateur Access to 2200 and 630 Meters > You should just start to hear the WSPR sigs around -14 to -12 SNR 2.5 kHz > b/w. Sounds like a carrier with a slight "wiggling". > > On 05/06/2015 07:56 PM, Fred Jensen wrote: >> 750 nautical miles is about 1,390 km. Ships would occasionally report >> hearing us on MF beyond that, 5 KW and huge antennas helps, but we had a >> hard time hearing them beyond about 750 nm in the daylight, and it >> depended on the ship. I remember hearing NMO [Hawai'i] in daylight a few >> times, very weak. >> >> I have yet to actually hear any of the WSPR stations I'm logging with Joe >> Taylor's software, even using CW bandwidths. I'm logging the same 5 or 6 >> stations all night, sometimes with reported SNR's of -6 to -1. I've >> gotten up in the middle of the night to listen, I guess I just haven't >> gotten up at the right time, and I'm getting a little tired of it. :-) >> >> I haven't done Wayne's MF/LF mods yet, that may help some. >> >> 73, >> >> Fred K6DGW >> - Northern California Contest Club >> - CU in the 50th Running of the Cal QSO Party 3-4 Oct 2015 >> - www.cqp.org >> >> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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