Re: [digitalradio] Future of ALE and HF Link.
Dave, The defensive approach drives off everyone but the true believers; only something incredibly valuable can survive this. Well put. philw de ka1gmn On Sun, Jan 24, 2010 at 7:18 PM, Dave AA6YQ aa...@ambersoft.com wrote: Re “the control is to prevent ALE bashing Across a broad range of technical offerings, organizations that actively solicit criticism and respond constructively tend to flourish, whereas organizations focused on protecting their baby often fail to gain traction, despite expending a comparable amount of energy. The “open” approach motivates users to help – in reporting defects, suggesting enhancements, and spreading the word – and naturally leads to a enthusiastic user community. The defensive approach drives off everyone but the true believers; only something incredibly valuable can survive this. 73, Dave, AA6YQ *From:* digitalradio@yahoogroups.com [mailto:digitalra...@yahoogroups.com] *On Behalf Of *Andy obrien *Sent:* Sunday, January 24, 2010 8:24 PM *To:* digitalradio; alera...@yahoogroups.com *Subject:* [digitalradio] Future of ALE and HF Link. I have decided that I will not be a part of HF Link, in the formal sense. Many members of the Yahoo group HFlink have been helpful over the years and Steve especially has been of tremendous help to all. However, I have concluded that the rigid control and moderation of that group, have contributed to the failure of ALE to take hold as an effective method of amateur radio communication. Despite years of efforts, ALE remains perhaps the least used method of ham radio contact management, and is regularly used by less than 75 hams world-wide. I know of no other amateur radio method that is dependent solely on one group , and that one group has such prohibitive practices that it essentially dictates terms. The copyright policy of the HF Link group is directly contributing to a lack of openness that is rarely seen in the amateur radio world. PSK and digital modes have many organizations and email lists, CW has lots of groups, SSB-phone a zillion clubs, RACES/ARES accepts a wider choices of systems, weak signals modes like JT65A have varying groups, but ALE on hams bands remains centralized via HF link. Winmor has tight control on the software but is generally open to input and openly allows dissent. ALE should be allowed to flourish in an open market where hams take the idea and help it evolve and succeed. Steve and Charles Brain have made huge contributions but the warehousing of it via HF link have reduced it to a little understood concept . I will continue to use ALE both PC-ALE and Multipsk . but no longer associate with HF Link. I have raised this matter before , and have received constructive comments the suggest that the control is to prevent ALE bashing . I think that there is not a lot to bash about ALE...it is a very effective system, However the protectionism exhibited by HF Link has harmed ALE more than the occasional ALE bashing would ever do. So, the problems of busy detect and unattended operation notwithstanding, I will remain an advocate of ALE and hope others will help it get rid of its shackles. Heck , lets get rid of ALE as an emcomm concept , it isn't really (it could be , one day). ALE might be more sellable as a DXing method or net control software! Andy K3UK No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.730 / Virus Database: 271.1.1/2636 - Release Date: 01/24/10 03:33:00
Re: [digitalradio] Super narrow filter: PSK31 with HB9DRV SDR-RADIO
Impressive. philw de ka1gmn On Sun, Jan 24, 2010 at 11:30 PM, Andy obrien k3uka...@gmail.com wrote: Finally! When I bought my TS-2000 a couple of years ago, I was aware of one criticism for the digital operator super narrow filtering in SSB was not as easy to achieve as in other rigs.It can be done via a radio equivalent of standing on your head , using CW to receive and USB to transmit. The steps to achieve that are not easy to automate, so I have found it difficult to cope with those monster nearby PSK signals that swamp the waterfall, and could be eased out if I had better filtering in USB. So, tonight, I decided to see how that would be addressed with my new SDR-IQ receiver and Simon Brown's preview release of SDR-Radio . I was very happy to be easily able to dial in narrow filters, til my heart's content. All at the stroke of a mouse slider, couldn't be simpler. Simon's software is still very early in development , so not yet seamlessly integrated with his DM780. Take a look at this screen shot if you are interested, http://www.obriensweb.com/36hz.jpg I highlighted items of interest in a red ellipse. I used Mixw to decode the PSK31 because SDR-Radio does not do it itself. Yes, I know... Mixw displays 20M, but I was actually on 80M. I have yet to try this when there is a monster signal nearby that needs to be nulled out , but I think the results will be good. Andy K3UK
[digitalradio] Re: Super narrow filter: PSK31 with HB9DRV SDR-RADIO
If you are using an IC7000 this is as easy as adding a filter slider control to either HRD, DM780 or both. It's not too hard from the front panel, either. There are also three filter presets. I'll leave one at full bandwidth and another at the bandwidth of the mode I'm using. 50Hz is no problem. Watch the entire waterfall, pick on a signal, hit the QSY/center button, hit the filter button and answer. If I wasn't so lazy I'd write a macro. --- In digitalradio@yahoogroups.com, Phil Williams ka1...@... wrote: Impressive. philw de ka1gmn On Sun, Jan 24, 2010 at 11:30 PM, Andy obrien k3uka...@... wrote: Finally! When I bought my TS-2000 a couple of years ago, I was aware of one criticism for the digital operator super narrow filtering in SSB was not as easy to achieve as in other rigs.It can be done via a radio equivalent of standing on your head , using CW to receive and USB to transmit. The steps to achieve that are not easy to automate, so I have found it difficult to cope with those monster nearby PSK signals that swamp the waterfall, and could be eased out if I had better filtering in USB. So, tonight, I decided to see how that would be addressed with my new SDR-IQ receiver and Simon Brown's preview release of SDR-Radio . I was very happy to be easily able to dial in narrow filters, til my heart's content. All at the stroke of a mouse slider, couldn't be simpler. Simon's software is still very early in development , so not yet seamlessly integrated with his DM780. Take a look at this screen shot if you are interested, http://www.obriensweb.com/36hz.jpg I highlighted items of interest in a red ellipse. I used Mixw to decode the PSK31 because SDR-Radio does not do it itself. Yes, I know... Mixw displays 20M, but I was actually on 80M. I have yet to try this when there is a monster signal nearby that needs to be nulled out , but I think the results will be good. Andy K3UK
Re: [digitalradio] Re: Super narrow filter: PSK31 with HB9DRV SDR-RADIO
On Mon, Jan 25, 2010 at 6:29 AM, aa777888athotmaildotcom aa777...@hotmail.com wrote: If you are using an IC7000 this is as easy as adding a filter slider control to either HRD, DM780 or both. It's not too hard from the front panel, either. There are also three filter presets. I'll leave one at full bandwidth and another at the bandwidth of the mode I'm using. 50Hz is no problem. Watch the entire waterfall, pick on a signal, hit the QSY/center button, hit the filter button and answer. If I wasn't so lazy I'd write a macro. yes, the Icom rig's make this easier. Andy.
Re: [digitalradio] Super narrow filter: PSK31 with HB9DRV SDR-RADIO
Testing with a monster signal nearby will be interesting. The ADC in the SDR-IQ digitizes several MHz at a time and then does filtering. The ADC in the sound card digitizes only a few kHz from the TS-2000 audio. You'll see which has better dynamic range. 73, John KD6OZH - Original Message - From: Phil Williams To: digitalradio@yahoogroups.com Sent: Monday, January 25, 2010 10:50 UTC Subject: Re: [digitalradio] Super narrow filter: PSK31 with HB9DRV SDR-RADIO Impressive. philw de ka1gmn On Sun, Jan 24, 2010 at 11:30 PM, Andy obrien k3uka...@gmail.com wrote: Finally! When I bought my TS-2000 a couple of years ago, I was aware of one criticism for the digital operator super narrow filtering in SSB was not as easy to achieve as in other rigs.It can be done via a radio equivalent of standing on your head , using CW to receive and USB to transmit. The steps to achieve that are not easy to automate, so I have found it difficult to cope with those monster nearby PSK signals that swamp the waterfall, and could be eased out if I had better filtering in USB. So, tonight, I decided to see how that would be addressed with my new SDR-IQ receiver and Simon Brown's preview release of SDR-Radio . I was very happy to be easily able to dial in narrow filters, til my heart's content. All at the stroke of a mouse slider, couldn't be simpler. Simon's software is still very early in development , so not yet seamlessly integrated with his DM780. Take a look at this screen shot if you are interested, http://www.obriensweb.com/36hz.jpg I highlighted items of interest in a red ellipse. I used Mixw to decode the PSK31 because SDR-Radio does not do it itself. Yes, I know... Mixw displays 20M, but I was actually on 80M. I have yet to try this when there is a monster signal nearby that needs to be nulled out , but I think the results will be good. Andy K3UK
Re: [digitalradio] Re: Super narrow filter: PSK31 with HB9DRV SDR-RADIO
One other technique is to leave the rig in USB mode, crank the Hi / Shift down to 1400 hz and tune the frequency until the interfering signal is at 1500 hz (or use the Lo / Width if the interfering signal is on the low side). The minimum width is about 400 hz this way, not 50 hz, but it is very effective in reducing the interference. Howard K5HB From: Andy obrien k3uka...@gmail.com To: digitalradio@yahoogroups.com Sent: Mon, January 25, 2010 5:49:49 AM Subject: Re: [digitalradio] Re: Super narrow filter: PSK31 with HB9DRV SDR-RADIO On Mon, Jan 25, 2010 at 6:29 AM, aa777888athotmaildo tcom aa777...@hotmail. com wrote: If you are using an IC7000 this is as easy as adding a filter slider control to either HRD, DM780 or both. It's not too hard from the front panel, either. There are also three filter presets. I'll leave one at full bandwidth and another at the bandwidth of the mode I'm using. 50Hz is no problem. Watch the entire waterfall, pick on a signal, hit the QSY/center button, hit the filter button and answer. If I wasn't so lazy I'd write a macro. yes, the Icom rig's make this easier. Andy.
Re: [digitalradio] Super narrow filter: PSK31 with HB9DRV SDR-RADIO
Hi Andy, Here is a MixW/TS2000 macro that will center the selected signal and then reduce the TS2000 bandwidth to about 100 cycles (lines beginning with a semicolon are comments and can be removed). ; move RX to 1000 (center of filter bandwidth) ALIGN:1000 ; move TX to same place JUMPTOTXFQ ; turn packet filter bandwidth ON (menu 50A) CATCMD:EX05001001; ; set low DSP filter to narrow CATCMD:SL01; ; set high DSP filter to 170 Hz CATCMD:SH00; Then full RX bandwidth can be restored with this macro. ; set Packet Filter (menu 50A) OFF CATCMD:EX05001000; ; set low cutoff to 100 Hz CATCMD:SL02; ; set high cutoff to 2600 Hz CATCMD:SH06; Having to use the Packet Filter to do this is weird but it was the only way I could find to get the filter down to 100 Hz with CAT. It does cut monster signals down to virtually no interference. Scott/K6IX Andy obrien wrote: Finally! When I bought my TS-2000 a couple of years ago, I was aware of one criticism for the digital operator super narrow filtering in SSB was not as easy to achieve as in other rigs. . I have yet to try this when there is a monster signal nearby that needs to be nulled out , but I think the results will be good. Andy K3UK
RE: [digitalradio] Future of ALE and HF Link.
At 07:18 PM 1/24/2010, you wrote: Re the control is to prevent ALE bashing That control is a Gestapo, Marxist type. She will flat out tell you that she may not be always right, but never wrong No one and I do mean no one can use any other mode on or near the frequency they use without getting a email letting you know that that is their frequency. This issue is far from being over, done, kaput. John, W0JAB In the cold heartland
[digitalradio] HRD and DM780 with Cyrillic alphabet
Hello, Simon. There are many posts from Russian-speaking HAMs about incompatibility of HRD and DM780 with Cyrillic alphabet. The DM780 shows unreadable symbols in the receiving window in case it was transmitted in Cyrillic, and it's not possible to type Cyrillic in the transmitting window. Would be nice to resolve this problem and expand use of this good program into Russian-speaking world. Best regards 73 Vlad UA6JD
RE: [digitalradio] HRD and DM780 with Cyrillic alphabet
Hi Vlad, I agree - but I really have not been able to find someone / anyone who can tell me exactly what the character translation is so that I can do this. Obviously I must use a Cyrillic font, but I have to map the characters I decode. If you can get me the table for this mapping (and not a CODE page) I'll do it. Simon Brown http://sdr-radio.com -Original Message- From: digitalradio@yahoogroups.com [mailto:digitalra...@yahoogroups.com] On Behalf Of Vlad_UA6JD There are many posts from Russian-speaking HAMs about incompatibility of HRD and DM780 with Cyrillic alphabet.
[digitalradio] RTTY sensitivity data using UOS and larger data sets
Folks: I have posted another graph of error rates versus signal / noise ratio with AWGN from PathSim. This data set uses 2300 characters (ham calls) per data point. Using UOS gives more reproducible data. The original Baudot audio files were produced in MMTTY. I would be willing to share the numerical data with anyone. Now it is time to look at ionospheric effects. It is at http://mysite.verizon.net/wz7i/RTTY.html Wes, WZ7I www.wz7i.com
