[digitalradio] 30m Usage....
Gents, I agree - isn't the 30m ham band being used for the purpose of adding legitimate Amateur Radio RF to an otherwise low-use band? I believe that the FCC would LOVE to strip this band from us and auction it off (remember to what happened to the 220 MHz band). Who cares what content there is as long as law abiding hams are using the band and creating the excitement of DX and local contact with other fellow hams who can use it, too. For what it's worth. de Marty, KN0CK _ Click here for great computer networking solutions! http://thirdpartyoffers.juno.com/TGL2111/fc/Ioyw6iighEIINuTT6aqOmIjB161Y7u9eu4g9leMjtPbH6rhhuRYB0q/
[digitalradio] Best line of the day
Copied on 40M PSK today I am having a hard time copying even though your signal is 599 , not decoding every thing. Andy K3UK
Re: [digitalradio] Best line of the day
Right up there with ur 599 599 pse rpt name es qth 73 Dave KB3MOW Andrew O'Brien wrote: Copied on 40M PSK today I am having a hard time copying even though your signal is 599 , not decoding every thing. Andy K3UK No virus found in this incoming message. Checked by AVG. Version: 7.5.519 / Virus Database: 269.22.13/1375 - Release Date: 4/12/2008 11:32 AM
Re: [digitalradio] Best line of the day
Any fool can know, the point is to understand. (Albert Einstein) Tim, N9PUZ Andrew O'Brien wrote: Copied on 40M PSK today I am having a hard time copying even though your signal is 599 , not decoding every thing. Andy K3UK
Re: [digitalradio] 30m Usage....
There is a belief by some that others desperately want our HF frequencies. It seems far from true, but it is used to stir up fear. The reality is that we do use the 30 meter band a fair amount. If you do a lot of SW listening, and regularly tune across the bands, you will find low usage in many areas except amateur radio and SWBC's, and some utilities here and there, (assuming that the bands are open for longer distances). And we are sharing the 30 meter band with other users who have priority over us, so they do not want us to have high usage that could make it difficult for those other users. Except for SWBC and military and some government use, the HF bands are not as important a communication path as they once were due to satellite and other technologies. This is why we were able to get world wide agreement on adding 30, 17, and 12 meters and later some spot 60 meter frequencies. It was because of declining use of HF that this happened, not because we had precedence over others who were competing with us for those frequencies and we somehow won. The VHF and higher bands are a different story. Most of the real needs of government and commercial users are short distance communications that stays short distance. That is why even low band VHF came into such disfavor with sporadic E and some F propagation. When that occurred, it was nearly impossible for local users to communicate. Ask some older protective service users about their past experiences. Since I became interested in radio from around 1957 and was first licensed in 1963, radio amateurs had substantial frequency bands above UHF. At the time we had no real use for those bands and it was difficult for anyone, including us, to imagine a practical use. Today we have far less bands available in those regions, but we still rarely use them. Now others use them heavily. In some cases, very heavily. I know it is not politically correct to suggest that we hams should give up certain frequencies, but I would have no problem whatsoever relinquishing 220 for other uses. Same thing with the microwave frequencies. The only ham use these bands seem to be for are contesting a few times a year. It seems to me that we only require a few frequencies for experimentation and satellite use, above 1.2 GHz. 73, Rick, KV9U [EMAIL PROTECTED] wrote: Gents, I agree - isn't the 30m ham band being used for the purpose of adding legitimate Amateur Radio RF to an otherwise low-use band? I believe that the FCC would LOVE to strip this band from us and auction it off (remember to what happened to the 220 MHz band). Who cares what content there is as long as law abiding hams are using the band and creating the excitement of DX and local contact with other fellow hams who can use it, too. For what it's worth. de Marty, KN0CK _
[digitalradio] Anyone need a $6.50 soundcard ?
I am about to order a USB external sound adapter for US$6.50. The shipping however is $8.00 , more than the product itself ! So, perhaps I should order several of them and just mail them to others than want one. They apparently weigh 4oz, sticking one in the US mail should cost a couple of dollars, not 8.00 (a guess) I have seen a couple of well known hams use these for digital modes. Anyone else want one ? Andy K3UK
[digitalradio] Re: Anyone need a $6.50 soundcard ?
--- In digitalradio@yahoogroups.com, Andrew O'Brien [EMAIL PROTECTED] wrote: I am about to order a USB external sound adapter for US$6.50. The shipping however is $8.00 , more than the product itself ! So, perhaps I should order several of them and just mail them to others than want one. They apparently weigh 4oz, sticking one in the US mail should cost a couple of dollars, not 8.00 (a guess) I have seen a couple of well known hams use these for digital modes. Anyone else want one ? Andy K3UK http://www.geeks.com/details.asp?invtid=CL-USCM2 for more details
[digitalradio] Re: another non- contest on a no contest band
I wasnt speaking direct at the activity day concept. It just happened that I was reading along in the daily digest, and happened to select the (reply to all) at the end of your message, in which to put in my three cents worth, about contesting in general, on the 30 meter band. I guess I gotta be more careful about that. This is only one of two groups where I dont get individual emails as they are sent, but get the daily digest (which had 25 messages this time around). In fact, I agree that a digital activity would be a very good way to introduce more ops to not only the band, but to entice them to try different digital modes. I just dont want to see it, or 12 or 17 become 'contest bound, making them unuseable for any other type operations during long periods of time. As I almost said, these bands are an escape for operators who do not want to put up with the contest QRM, going on on the other HF bands. The one thing I would recommend is that any such activity day be set to insure its NOT on the same dates that major events are happening on the other HF bands, so the band is available for those operators wanting a get away. I just took a look and see I have several dozen PSK contacts and a couple of hundred RTTY contacts on the 30 meter band, so there is indeed some of us there. Danny Douglas N7DC ex WN5QMX ET2US WA5UKR ET3USA SV0WPP VS6DD N7DC/YV5 G5CTB All 2 years or more (except Novice) Pls QSL direct, buro, or LOTW preferred, I Do not use, but as a courtesy do upload to eQSL for those who do.
[digitalradio] 30 meters dead
Started listening to 30m at 8 AM. Only heard a propnet station coming on periodically. For one hour, no other activity - took a *big* risk - called CQ! ;-) Worked Columbia and California. When in doubt - just try calling CQ! Maybe the band is not dead after all. 73, Skip KH6TY
Re: [digitalradio] Re: Anyone need a $6.50 soundcard ?
Andy, if you don't get any takers, I have an extra one I will be glad to drop in the mail to you - no charge. I purchased four to save on the per-unit shipping cost, with the expectation of giving them to others who would like to get on NBEMS. These things work just great and free up your computer soundcard for use by Windows. Just use VOX for PTT. 73, Skip KH6TY - Original Message - From: Andrew O'Brien To: digitalradio@yahoogroups.com Sent: Sunday, April 13, 2008 8:41 AM Subject: [digitalradio] Re: Anyone need a $6.50 soundcard ? --- In digitalradio@yahoogroups.com, Andrew O'Brien [EMAIL PROTECTED] wrote: I am about to order a USB external sound adapter for US$6.50. The shipping however is $8.00 , more than the product itself ! So, perhaps I should order several of them and just mail them to others than want one. They apparently weigh 4oz, sticking one in the US mail should cost a couple of dollars, not 8.00 (a guess) I have seen a couple of well known hams use these for digital modes. Anyone else want one ? Andy K3UK http://www.geeks.com/details.asp?invtid=CL-USCM2 for more details -- No virus found in this incoming message. Checked by AVG. Version: 7.5.519 / Virus Database: 269.22.13/1375 - Release Date: 4/12/2008 11:32 AM
[digitalradio] Re: Anyone need a $6.50 soundcard ?
--- In digitalradio@yahoogroups.com, Andrew O'Brien [EMAIL PROTECTED] wrote: I am about to order a USB external sound adapter for US$6.50. The shipping however is $8.00 , more than the product itself ! So, perhaps I should order several of them and just mail them to others than want one. They apparently weigh 4oz, sticking one in the US mail should cost a couple of dollars, not 8.00 (a guess) I have seen a couple of well known hams use these for digital modes. Anyone else want one ? Andy K3UK Hello Andy, I have used almost the similar USB sound adapter and made a modification to get a very high precision sampling rate. My module has a 12 MHz crystal and CM108 codec inside. It was only necessary to cut one of crystal wires and feed 3 V level from my double-ovened reference oscillator (by resistance division from 5 V TTL). 73 Matti/OH2ZT
Re: [digitalradio] Re: Anyone need a $6.50 soundcard ?
If your transceiver has no VOX for PTT, or you prefer to keep the mic plugged in, and you have no problem working with tiny SMT pinouts, the USB Sound Adapter can also be modified to provide an audio-actuated PTT output as well as audio in and out:: http://www.usbradio.org/usbfob.pdf This makes about as inexpensive a complete PSK31 interface as you can get! If you have any feedback problems, just add a Radio Shack isolation transformer in the transmit audio line. 73, Skip KH6TY Hello Andy, I have used almost the similar USB sound adapter and made a modification to get a very high precision sampling rate. My module has a 12 MHz crystal and CM108 codec inside. It was only necessary to cut one of crystal wires and feed 3 V level from my double-ovened reference oscillator (by resistance division from 5 V TTL). 73 Matti/OH2ZT
[digitalradio] Re: 30 meters dead
--- In digitalradio@yahoogroups.com, kh6ty [EMAIL PROTECTED] wrote: Started listening to 30m at 8 AM. Only heard a propnet station coming on periodically. For one hour, no other activity - took a *big* risk - called CQ! ;-) Worked Columbia and California. When in doubt - just try calling CQ! Maybe the band is not dead after all. 73, Skip KH6TY Yes, amazing what happens when you sue the secret weapon, a CQ, FYI, here a a few other paths open at that time on 30M QRP... 412 Miles : 12:14 WB3ANQ in FM19rc heard by N1EO in FN43gq 860 Miles : 12:20 K3SIW EN52ta W1BWFN42hl 1740 Miles : 12:22 VE3CDX DM26ic W8LIW in EN81go 10919 miles !!! 12:24 K3SIW in EN52ta heard by VK6DI in OF88cd Yep, the band was dead alright !
[digitalradio] Re: Anyone need a $6.50 soundcard ?
Andy, any takers on your offer. I am interested in the unit. Contact me off line to discuss your pendeng order. Lynn - KB3FN - [EMAIL PROTECTED] --- In digitalradio@yahoogroups.com, Andrew O'Brien [EMAIL PROTECTED] wrote: I am about to order a USB external sound adapter for US$6.50. The shipping however is $8.00 , more than the product itself ! So, perhaps I should order several of them and just mail them to others than want one. They apparently weigh 4oz, sticking one in the US mail should cost a couple of dollars, not 8.00 (a guess) I have seen a couple of well known hams use these for digital modes. Anyone else want one ? Andy K3UK
[digitalradio] Re: 30 meters dead
Skip KH6TY, Thanks for your report and post! As Andy and others have indicated the MEPT and PropNet data is good information: http://www.wsprnet.org/meptspots.php http://propnet.findu.com/catch.cgi?band=HGlast=4geo=world.geo (although PropNet doesn't have enough stations outside NA to really indicate the true band propagations) I would like to add that Sholto KE7HPV came up with a very intuitive idea of using the Panoramic feature in MultiPSK to actually document 30 Meter Digital (mostly PSK) activity without using any transmit/rf out but using receive only of `auto' spotters placed in key areas that would document propagation on the band (`auto' spotters have been placed on the West Coast NA, Central NA, East Coast NA, two in EU and one in OC-New Zealand..still looking for SA,AS). Skip you were `auto' spotted on Sholto's page and it also documented not only you but to whom you had a QSO with: http://www.30meterdigital.org/30mspot.html 04-13 12:35 NL9222 AutoJO22ke RA1WZ 10.140 1547PSK31 Working OZ1PMX 04-13 12:30 WB6YTE AutoDM12lp KH6TY 10.140 774 PSK31 Working KD6NRP 04-13 12:25 KB9UMT AutoEN50dp HK4SAN 10.140 2468PSK31 Working KH6TY I think you are right the 30 band isn't dead and believe it is open most all the time somewhere (just a matter of if there is another op somewhere to answer back...and although the band might not be dead if there is no participation or ops then alive or not it is still dead and not by propagation but by lack of activity). KD6NRP Brain that you had QSO with on 30 Meters is one of our 30MDG Members and HK4SAN Humberto is a Columbia Ham emailed in the past months in an effort to let SA know that NA,EU and OC are active on the 30 Meter Digital band and are in hopes that SA stations would give 30m digital a try and not skip over the band going from 20 to 40 meters. HK4SAN indicated he would check in from time to time on the band and has done so many timesÂ…not only on the band but our 30MDG site: http://feedjit.com/stats/30meterdigital.org/map/?x=115y=47w=160h=94 If I was a betting man I would say if you would have put out a PSK CQ on the 30 Meter Band a year ago at this same time you might have sadly been all by yourselfÂ…and for hours. Sholto has done a great job on the 30 Meter Digital Spot page and we pretty much have the documentation from his efforts of the steady increase of participation and use of the digital part of the 30 Meter Band and one of a positive nature with good digital ops (respect of the band, experimentation, ragchew, dx, and so far not an increase over kill..slow and but steady). I think Sholto and other here that started increaseing their usage of the 30 Meter digital back a year ago could remember just documenting a few PropNet Stations and calling CQ for hours or wanting to have some other digital ops to try different digital modes, power, test propagation, etc but now it seems many are interested in the 30 Meter band thus the MEPT folks there, JT65a, PropNet and the best part folks like you Skip actually taking the `big' risk of calling CQ. Thanks De kb9umt Don www.30meterdigital.org --- In digitalradio@yahoogroups.com, kh6ty [EMAIL PROTECTED] wrote: Started listening to 30m at 8 AM. Only heard a propnet station coming on periodically. For one hour, no other activity - took a *big* risk - called CQ! ;-) Worked Columbia and California. When in doubt - just try calling CQ! Maybe the band is not dead after all. 73, Skip KH6TY
[digitalradio] Re:Anyone need a $6.50 soundcard ?
Hi Andy, I would like one. Joe WB6AGR/AAT9EK **It's Tax Time! Get tips, forms and advice on AOL Money Finance. (http://money.aol.com/tax?NCID=aolcmp0030002850)
[digitalradio] Re: 30 meters dead
Thanks Andy, and to add to the Dead Band reports, W8LEW and myself (KE5HAM) recently experimented on 30 meters trying to determine how low we could go in power. We started out with about 50 watts and managed to drop our power progressively to 1 watt on each end and maintain 100% contacts - distance between us is 1189 miles (Edna, Texas to Lansing, Michigan)--- We used several different modes successfully. Antennas on both ends were simple inverted V dipoles We repeated the tests several times yes, the band must be dead John In digitalradio@yahoogroups.com, Andrew O'Brien [EMAIL PROTECTED] wrote: --- In digitalradio@yahoogroups.com, kh6ty kh6ty@ wrote: Started listening to 30m at 8 AM. Only heard a propnet station coming on periodically. For one hour, no other activity - took a *big* risk - called CQ! ;-) Worked Columbia and California. When in doubt - just try calling CQ! Maybe the band is not dead after all. 73, Skip KH6TY Yes, amazing what happens when you sue the secret weapon, a CQ, FYI, here a a few other paths open at that time on 30M QRP... 412 Miles : 12:14 WB3ANQ in FM19rc heard by N1EO in FN43gq 860 Miles : 12:20 K3SIW EN52ta W1BWFN42hl 1740 Miles : 12:22 VE3CDX DM26ic W8LIW in EN81go 10919 miles !!! 12:24 K3SIW in EN52ta heard by VK6DI in OF88cd Yep, the band was dead alright !
Re: [digitalradio] Best line of the day
I agree. Static crashes are a powerful QRN source here too. Guess Olivia would be better, even 8/250 would stand a better chance of good copy. In spite of strong signals, if there is no second chance, it does not matter much how clever Varicode is. It is certainly a big step ahead on quiet bands, but when QRM dominates, it is simply not enough. 73, Jose, CO2JA David Little wrote: That's what happens when there are static crashes, like those from the string of cells (or super-cells) moving across the Eastern US. Got FEC?? The station could improve the odds against him by using faster (or no AGC) for quicker recovery time to lessen the lost data (again, no FEC - no redundancy- no second chances)... Of course, the ease of using PSK as opposed to a mode with error correction attracts the masses, and is is narrow bandwidth... The station probably was actually decoding everything, including the static crashes and resulting lost data David KD4NUE -Original Message- *From:* digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED] *On Behalf Of *Andrew O'Brien *Sent:* Sunday, April 13, 2008 8:17 AM *To:* digitalradio@yahoogroups.com *Subject:* [digitalradio] Best line of the day Copied on 40M PSK today I am having a hard time copying even though your signal is 599 , not decoding everything. Andy K3UK
[digitalradio] Dayton Hamvention Technical Achievement Award: Tom McDermott, N5EG
Thomas C. McDermott, N5EG Dayton Hamvenion Technical Achievement Award: Tom McDermott, N5EG The Hamvention Technical Achievement Award goes to Thomas C. McDermott, N5EG, for his more than 20 years of involvement in projects which further the development of Amateur Radio. According to Hamvention, McDemott co-developed the TexNet packet switching network in 1986; based on datagram routing, it covered much of the South Central United States in the 1990s. McDermott, an ARRL Life Member, received the Doug DeMaw, W1FB, Technical Excellence Award in 2004. Licensed for almost 40 years, he is a member of the IEEE and holds a bachelor's in electrical engineering. His Amateur Radio interests lie in HF digital communications, hardware and software design, and an occasional HF contest. McDermott was the founder of the Texas Packet Radio Society. As part of that group, he designed the hardware and some of the protocols for the TexNet packet switching network; he has been involved in numerous TAPR http://www.tapr.org/ projects and has written a textbook on wireless communications. McDermott holds eight patents. http://www.tapr.org/~n5eg/ __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
[digitalradio] Re: 30m Usage....
Frankly, I expected the government to give us back the channel 1 TV frequency, that they took away from us to make television to start with. NOT Wouldnt it be wonderful had someone, anyone, reminded them of that. Maybe the ARRL? Danny Douglas N7DC ex WN5QMX ET2US WA5UKR ET3USA SV0WPP VS6DD N7DC/YV5 G5CTB All 2 years or more (except Novice) Pls QSL direct, buro, or LOTW preferred, I Do not use, but as a courtesy do upload to eQSL for those who do.
[digitalradio] Cheap USB soundcards ordered
I placed an order for 6 of these USB sound adapters. They will go to David wd4kpd (possibly 2 ) Joe WB6AGR/AAT9EK Lynn - KB3FN Skip KH6TY Andy K3UK The shipping of $8.00 (ground) was the same for 6 as it would have been for one. So each one will be $7.83 PLUS whatever it costs for me to mail to you. I will investigate that after they arrive , I already have some bubble wrap and will most likely use some sort of padded envelope. Hopefully I can keep your total price under $10.00. I will see if I can set-up my PayPal account to receive money. -- Andy K3UK www.obriensweb.com (QSL via N2RJ)
Re: [digitalradio] 10MHz Ham Digi Band Research Survey Chart 10140-10150kHz
At 12:48 PM 4/12/2008, expeditionradio wrote: New 10MHz Ham Digi Band Research Survey Chart 10140kHz to 10150kHz Digital/Auto Sub-Band Click here: http://hflink.com/bandplans/10mhz/http://hflink.com/bandplans/10mhz/ 73 Bonnie VR2/KQ6XA What was the question that was answered to make the chart? V/R Chuck AA5J
Re: [digitalradio] Cheap USB soundcards ordered
Andy, There may be some misunderstanding. I already have four of the USB Sound Adapters, which I will use to help local hams get on NBEMS. Please take me off your list, as I don't need any more. Thanks, Skip KH6TY
Re: [digitalradio] Best line of the day
I agree. Static crashes are a powerful QRN source here too. Guess Olivia would be better, even 8/250 would stand a better chance of good copy. In spite of strong signals, if there is no second chance, it does not matter much how clever Varicode is. It is certainly a big step ahead on quiet bands, but when QRM dominates, it is simply not enough. 73, Jose, CO2JA Hi Jose, We are using PSK63 to PSK250 on 2 meters for NBEMS with excellent success and fast data transfers, as there is essentially no problem with static crashes on 2 meters. Wether we use PSK63, PSK125, or PSK250 is simply a function of the path loss on 2 meters we have to overcome to get a usable S/N, and there is no QSB to contend with either (up to about 100 miles). However, as you note, static crashes are a big problem for PSK31, and a huge problem for PSK250, so those testing NBEMS on HF have had to resort to MFSK16 (already included in the NBEMS software), which is much less disturbed by static crashes. However, data transfer is very slow using MFSK16, especially after adding ARQ, so we are seriously considering using DominoEx, which is faster, easier to tune, within 1.5 dB of the weak signal performance of MFSK16, and that we hope is more like MFSK16 in tolerance to static crashes, but we do not have enough experience to know if it is or not. The problem is that DominoEx is not used a lot, so if you, and others reading this post, can compare DominoEx11, or DominoEx16, to MFSK16 during times of many static crashes and let us know the result, I would greatly appreciate it. Multipsk supports both DominoEx, and MFSK16 under Windows, as does fldigi, under Linux. 73, Skip KH6TY NBEMS Development Team
[digitalradio] Re: 30 meters dead
I am always amazed at the people who say I never call CQ My first question is alwayWHY?. It takes two to tango! Time and again, I have listened to 10 meters and heard absolutely nothing. A couple of CQs often brings a few out of the woodwork. One of my MACROS on WinWarbler is an automatic CQ, and it does get used- a lot lduring these doldrums. Danny Douglas N7DC ex WN5QMX ET2US WA5UKR ET3USA SV0WPP VS6DD N7DC/YV5 G5CTB All 2 years or more (except Novice) Pls QSL direct, buro, or LOTW preferred, I Do not use, but as a courtesy do upload to eQSL for those who do.
Re: [digitalradio] Cheap USB soundcards ordered
No problem, I must have been asleep! On Sun, Apr 13, 2008 at 1:49 PM, kh6ty [EMAIL PROTECTED] wrote: Andy, There may be some misunderstanding. I already have four of the USB Sound Adapters, which I will use to help local hams get on NBEMS. Please take me off your list, as I don't need any more. Thanks, Skip KH6TY -- Andy K3UK www.obriensweb.com (QSL via N2RJ)
RE: [digitalradio] Anyone need a $6.50 soundcard ?
Andy, If you have one left I would be interested. TNX 73, Dave N0EOP -Original Message- From: digitalradio@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Andrew O'Brien Sent: Sunday, April 13, 2008 6:41 AM To: digitalradio@yahoogroups.com Subject: [digitalradio] Anyone need a $6.50 soundcard ? I am about to order a USB external sound adapter for US$6.50. The shipping however is $8.00 , more than the product itself ! So, perhaps I should order several of them and just mail them to others than want one. They apparently weigh 4oz, sticking one in the US mail should cost a couple of dollars, not 8.00 (a guess) I have seen a couple of well known hams use these for digital modes. Anyone else want one ? Andy K3UK
[digitalradio] More on 30M DX
30M seems to open to Europe from eastern North America earlier than I would expect. Digital radio enthusiasts may want to take note. Here are a few stations my 40M (yes, 40) Inverted V at 35 feet captured. PSK31 Examples: Germany: Rx at Sun, 13 Apr 2008 17:12:01 GMT From DL0EPC Loc JO43lg by k3uk Frequency: 10.139 MHz (30m), PSK31 Italy: Rx at Sun, 13 Apr 2008 17:15:02 GMT From IZ5MMK Loc JN54ab by k3uk Frequency: 10.139 MHz (30m), PSK31 WSPR: France 1724 SNR -25 10.140173 F6IRF JN35 1 watt.
[digitalradio] 30M contesting thread: Retired
Ladies and Gentlemen, I think the thread about the 30M activity weekend and whether this constituted contesting, has run it's course. Posting about 30M digital activity and propagation is welcome but lets not get the old thread any further . Andy K3UK Owner.
[digitalradio] Re : Best line of the day
I would have thought by now, with conditions having been the way they are for some considerable time, all users would have seen strong transmissions, suitably described as 5/9, within seconds deteriorate into barely readable signals. This phenomona, for those who may have temporarily forgotten is referred to as QSB. Also there are many who have 5/9 enshrined in their macro's, which they send to every contact, somewhat like contest reports which are accepted by millions of contesters as quite normal. Kind regards, Mel G0GQK
Re: [digitalradio] Re : Best line of the day
Maybe because I'm further south but 20m has been very stable all day on PSK. Simon Brown, HB9DRV -- From: Mel [EMAIL PROTECTED] I would have thought by now, with conditions having been the way they are for some considerable time, all users would have seen strong transmissions, suitably described as 5/9, within seconds deteriorate into barely readable signals.
[digitalradio] 30 meters alive
I did not realize that there were very many hams who would never send a CQ. They definitely fall into the very odd category. I recall an article in one of the ham magazines a few years (probably was actually decades ago), where the ham would park his rig on just about any quiet frequency in a band that was open and wait and typically, sooner or later ... usually sooner ... someone would call CQ within his passband. One of the curious things is that a given frequency seems most busy about the time you need a clear frequency for a sked. My wife and I use 75 meters when she is outside of the local repeater. Which is not that far due to our difficult terrain here in the Driftless Area of Wisconsin. Even though 75 SSB phone is difficult to do mobile to base, it is one of the only choices we have other than perhaps VHF SSB. We have tried 10 meters and gotten out better than the repeater. And that was to a compromise antenna (the Bugcatcher with the coil jumpered across and force fed with the tuner. I wish there was a low cost way to do NVIS from a mobile, but the only one I have seen is huge in both size and cost:( Every time we would try to set up a sked frequency, sure enough someone would be on a dead band during the daytime on 75 meters. Normally, I think of 75 as only having a few regional nets and not much else during the day. Because of the insane phone expansion of 75 meters here in the U.S., it prompted my wife to study for and pass her Extra Class license and now both of us can work each other in the 3600-3700 Extra and 3700-3800 Advanced class sub bands! It is still hard for me to accept that we are operating phone in the the area where CW nets, automatic digital stations, Novices, etc. use to be. But there have been some mostly clear frequencies down there. When it comes to 30 meters, my rule of thumb is that if I don't seem to hear anything in my digital area of (10.138 - 10145) I then tune to the CW portion and see if there are any stations, even weak ones, also check to see if the commercial?/government? digital station is on, or check to see if the automatic Pactor or Packet stations are on higher up. That pretty well tells you if the band is open. 73, Rick, KV9U Danny Douglas wrote: I am always amazed at the people who say I never call CQ My first question is alwayWHY?. It takes two to tango! Time and again, I have listened to 10 meters and heard absolutely nothing. A couple of CQs often brings a few out of the woodwork. One of my MACROS on WinWarbler is an automatic CQ, and it does get used- a lot lduring these doldrums. Danny Douglas N7DC ex WN5QMX ET2US WA5UKR ET3USA SV0WPP VS6DD N7DC/YV5 G5CTB All 2 years or more (except Novice) Pls QSL direct, buro, or LOTW preferred, I Do not use, but as a courtesy do upload to eQSL for those who do. Announce your digital presence via our Interactive Sked Page at http://www.obriensweb.com/sked Check our other Yahoo Groups http://groups.yahoo.com/group/dxlist/ http://groups.yahoo.com/group/contesting http://groups.yahoo.com/group/themixwgroup Yahoo! Groups Links
Re: [digitalradio] Re: 30m Usage....
Where was that? 48 to 54 MHz, or somewhere else? The only old reference I remember, from a 1936 Frank Jones Handbook is that 5 meters was 56 to 60 MHz (double of the ancient 10 meters band, before the 300 kHz snip on its top). I am not really sure of how things evolved from the old 5 meters band to what we have now around 50 MHz. Does anyone remember? 73, Jose, CO2JA --- Danny Douglas wrote: Frankly, I expected the government to give us back the channel 1 TV frequency, that they took away from us to make television to start with. NOT Wouldnt it be wonderful had someone, anyone, reminded them of that. Maybe the ARRL? Danny Douglas N7DC ex WN5QMX ET2US WA5UKR ET3USA SV0WPP VS6DD N7DC/YV5 G5CTB All 2 years or more (except Novice)
Re: [digitalradio] Re: 30m Usage....
Isn't Channel 1 not being used for TV because for all practical purposes, it is the 6 meter band that we do have access to? TV Channels actually start with ... Channel 2 ... which is 54 to 60 MHz. I am a bit ahead of the curve for digital TV as we have been watching it for several years now. Even with the lower power that some stations were running at, we often were able to receive HDTV OK. But where I made a big mistake was misunderstanding the VHF frequencies. They are not going to refarm channels 2 -13 are they? Instead, VHF stations had an option to keep their analog VHF allocation, set up a temporary UHF digital allocation, and on changeover day, they will turn off the UHF digital station, turn off the analog VHF station, and turn on the VHF digital station. Two of our local stations made this choice. This means that we will probably have to buy VHF antenna in addition to our modest UHF corner reflector yagi that works well enough now. We can barely pick up the more distant VHF station on the UHF antenna, but the closer one is good enough. But I wonder if that will be consistently true when we try to pick up digital. The retired Chief Engineer from one of these stations is a long time ham and he explained that they will not have to run as much power with digital since signals seem to go farther than analog. It will be interesting. 73, Rick, KV9U Danny Douglas wrote: Frankly, I expected the government to give us back the channel 1 TV frequency, that they took away from us to make television to start with. NOT Wouldnt it be wonderful had someone, anyone, reminded them of that. Maybe the ARRL?
[digitalradio] North American Data Communications Museum
North American Data Communications Museum http://www.nadcomm.com/ __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
Re: [digitalradio] Cheap USB soundcards ordered
Andy, I will sign up for the extra card, can't have too many.
If you have already committed it, no problem.
Howard K5HB
- Original Message
From: Andrew O'Brien [EMAIL PROTECTED]
To: digitalradio@yahoogroups.com
Sent: Sunday, April 13, 2008 1:32:42 PM
Subject: Re: [digitalradio] Cheap USB soundcards ordered
No problem, I must have been asleep!
On Sun, Apr 13, 2008 at 1:49 PM, kh6ty [EMAIL PROTECTED] net wrote:
Andy,
There may be some misunderstanding. I already have four of the USB Sound
Adapters, which I will use to help local hams get on NBEMS. Please take me
off your list, as I don't need any more.
Thanks,
Skip KH6TY
--
Andy K3UK
www.obriensweb. com
(QSL via N2RJ)
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Re: [digitalradio] Anyone need a $6.50 soundcard ?
HI Andy.. Yes, please. Count me in. Howard W6IDS Richmond, IN - Original Message - From: Andrew O'Brien [EMAIL PROTECTED] To: digitalradio@yahoogroups.com Sent: Sunday, April 13, 2008 8:41 AM Subject: [digitalradio] Anyone need a $6.50 soundcard ? I am about to order a USB external sound adapter for US$6.50. The shipping however is $8.00 , more than the product itself ! So, perhaps I should order several of them and just mail them to others than want one. They apparently weigh 4oz, sticking one in the US mail should cost a couple of dollars, not 8.00 (a guess) I have seen a couple of well known hams use these for digital modes. Anyone else want one ? Andy K3UK
