Re: [digitalradio] [Fwd: Your comments on Polar Paths and Digital Modes]
It was 1425Z here in SW Wisconsin and I was copying JA1RZD on 14072.5 + 1500 Hz with near 100%, but he could not hear me. Very low noise and no S-meter reading on my end. After calling him a few times, he did ask QRZ and later KC7?? but I can imagine that noise levels might be much stronger on his end. Also, his web site indicates he can run 350 watts on MFSK and I am only running 25. OK, kicked it up to 200, HI, but no luck either. Hearing WF7T, but not zero beat with him and did not link up. Maybe that was the 7 station that JA1RZD heard? 73, Rick, KV9U Tony wrote: All, Received the following email from Ken, JA1RZD. Tony -K2MO Hi Tony, Thank you for the QSO on March 27 MFSK mode. I happen to find your comments on Polar Paths and Digital Modes on the following page. http://www.mail-archive.com/digitalradio@yahoogroups.com/msg19939.html Your comments are exactly the same as I experienced over the past several years. I would like to point out one downside of MFSK. It is very difficult find stations on MFSK mode. I normally call CQ on 14.072.5 MHz plus 1500 Hz audio but it is rare to be called from the USA. European stations are much more active. If you know the active frequency of MFSK, please let me know. Or _please inform to the subscribers that I call CQ on 14.072.5 MHz USB plus 1500 Hz MFSK_. I hope to see you again on MFSK mode. The 20 m band is open from 14z to 17z to the USA and Europe from Japan. 73 de JA1RZD, Ken P.S. Please visit my page on QRZ.com. Navigate to the map and zoom in to max on picture mode, you will see the satellite pictue of my antennas. _ ??25GB?? http://skydrive.live.com/?showunauth=1
Re: [digitalradio] More Path Simulations: Contestia / RTTYM and others
Just shows what an excellent engineer Pawel is (Pawel designed Olivia and MT63 and had a part to play in PSK with slowbpsk). Also I would have sent the PSK using lowercase - it's faster, less bits per character and hence more robust. Simon Brown, HB9DRV www.ham-radio-deluxe.com - Original Message - From: Tony The path simulation tests below show how each mode might behave under the same signal-to-noise / HF path conditions.
[digitalradio] New release (4.14) of MULTIPSK
New release (4.14) of MULTIPSK Pour les francophones: la version française de ce message se trouve sur mon site (http://f6cte.free.fr). Il suffit de cliquer sur le lien Principales modifications (courriel avertissant de la sortie de la nouvelle version). Hello to all Ham and SWL, The new release of MultiPSK (4.14) is on my Web site (http://f6cte.free.fr). The main mirror site is Earl's, N8KBR: http://www.eqth.info/multipsk/index.html (click on United States Download Site). Another mirror site isTerry's: http://g90swl.co.uk/multipsk/ Multispk associated to Clock are freeware programs but with functions submitted to a licence (by user key). The main modifications of MULTIPSK 4.14 are the following: 1) Coding/Decoding of Packet BPSK1200 and new modes Packet BPSK250 and BPSK63 The BPSK1200 Packet mode is used for satellite (as LUSAT LO-19 for example) transmissions in UHF (USB). But it could also be used in VHF (FM ) with a better performance than Packet FSK, in Unproto (APRS) or in connected mode. The BPSK250 and BPSK63 Packet modes are experimental and could be used favourably for APRS transmissions in HF. See specifications further on. 2) Addition of the Prop ID in the Call ID + Scanning The Prop ID (Propagation ID) is composed of a 6 characters call sign, a Locator on 4 characters + (precision: +/-0.5 ° in longitude and in latitude), the power level (0.5 to 500 Watts), the type of the antenna or its gain (4 to 19 dB) and the directivity of the antenna (NW for North West for example). The Prop ID could be processed to determine the real propagation conditions, but the main use is to define the station. The Prop ID can be favourably used with the new scanning function. This function (in the Transceiver window) permits to scan the M1 to M4 memories (frequencies), monitoring a determined time on each channel between 10 seconds to 30 minutes, For a quick guide to use Call ID or Prop ID, download http://f6cte.free.fr/The_Call_ID_and_Prop_ID_easy_with_Multipsk.doc 3) Detection of RS ID or Call ID on a SdR From the Multipsk SdR window (Direct via the sound card button), it is proposed to detect any RS ID, Call ID (or Prop ID) on a 44 KHz bandwidth (between the yellow vertical dashes) and to display the RS ID or the Call ID in the SdR spectrum. For example, with a SdR receiver tuned to a central frequency of 14.091 MHz, it will be possible to detect any RS ID or Call ID on all the 14 MHz digital band, i.e. from 14.070 to 14.112 MHz. For a quick guide to use RS ID, Call ID or Prop ID, download: http://f6cte.free.fr/The_RS_ID_easy_with_Multipsk.doc http://f6cte.free.fr/The_Call_ID_and_Prop_ID_easy_with_Multipsk.doc Note for programmers: code sources of RS ID and Call ID, in Pascal, are available on demand to the author. 4) Possibility to control the transceiver through a TCP/IP link In the Transceiver window, it is proposed the possibility to control the transceiver through a TCP/IP link instead of a DDE link (through Commander or HRD). In this case, it must be, previously, established the standard TCP/IP link used for exchange of data with the TCP/IP client program, located on the same PC (or on an other PC). The last version of the software DXBuddy from Wolfgang (DL7NB) is able to use this interface. See http://www.dx-buddy.net 5) Possibility to automatically display the received Locators on Googleearth maps This applies to the standard decoding and to all panoramics (PSK/CW/RTTY). In this case, all Locators received on a 3 KHz bandwidth will be displayed on GoogleEarth. This option is available on the controls part of the world map (button World). 6) ALE (141A) Thanks to the ALE^Stat software (K4PWO, Perry) , it is possible, through a specific TCP/IP link (local address 127.0.0.1, port 23), to export reports of received ALE frames (Soundings, Calls and AMD messages) to the HFLink WEB page (http://hflink.net/qso/). 7) Sound through TCP/IP Multidem link The Multidem TCP/IP link permits now to direct the digital sound received, from the TCP/IP server (Multidem or Gui_serv_Multipsk), through the TCP/IP link, towards the speaker. This function permits to, remotly, decode and listen the radio transmissions. 8) CW: working in QSK and CW keyer The QSK button permits to work in QSK (reception between transmitted Morse signs), by leaving the decoding on duty during CW transmission. The Keyer button permits to transform Multipsk in a CW generator (automatic dots and dashes), up to 20 to 30 wpm. The double-lever Morse key must be connected to the PC through the same serial port as the one selected to switch the transceiver. This works only if the Yes without sound, for big PC (by timer) option is selected in the MODE window (click on the red button labeled MODE). See the CW (RX/TX) interface diagram at the address http://f6cte.free.fr/Interface_for_CW.GIF 9) Addition of the Very slow 8-125 Olivia/Contestia/RTTYM modes. Note about translation
[digitalradio] Added feature to sked page
The digitalradio sked page is undergoing a few revisions. One new item is another method of posting your QRG. Check-in and work a few via http://www.obriensweb.com/sked/ Active skeds: Fm: K3UK To: NØVPL ST:18:Ø1 QRG:14Ø72 Mode: PSK63 Fm: K3UK To: CQ ST:14:24 QRG:14Ø76 Mode: JT65A Fm: K3UK-1 To: ve2har ST:14:16 QRG:1Ø132 Mode: SSTV-n Fm: VE2HAR To: CQ ST:13:53 QRG:1Ø132 Mode: SSTV-N
Re: [digitalradio] More Path Simulations: Contestia / RTTYM and others
Simon, Just shows what an excellent engineer Pawel is . Pawel designed Olivia and MT63 and had a part to play in PSK with slowbpsk. And thanks to those like yourself Patrick and others, we get to play with the outstanding software that lets us communicate with Powels modes. Thank you all. Also I would have sent the PSK using lowercase - it's faster, less bits per character and hence more robust. I'll give psk31 lowercase a run through the simulator Simon. Thanks for the tip. Tony -K2MO - Original Message - From: Simon (HB9DRV) simon.br...@kns.ch To: digitalradio@yahoogroups.com Sent: Sunday, May 24, 2009 11:00 AM Subject: Re: [digitalradio] More Path Simulations: Contestia / RTTYM and others Just shows what an excellent engineer Pawel is (Pawel designed Olivia and MT63 and had a part to play in PSK with slowbpsk). Also I would have sent the PSK using lowercase - it's faster, less bits per character and hence more robust. Simon Brown, HB9DRV www.ham-radio-deluxe.com - Original Message - From: Tony The path simulation tests below show how each mode might behave under the same signal-to-noise / HF path conditions.
Re: [digitalradio] More Path Simulations: Contestia / RTTYM and others
PSK lowercase will be interesting, as *everyone* on this list knows lowercase PSK is faster and more robust, yet many Hams send everything in uppercase - calling CQ DX in uppercase is just - daft :) FWIW The only difference between Contestia / RTTYM and Olivia is that Olivia is a 7-bit char set, Contestia 6-bit and RTTY-M 5-bit. Simon Brown, HB9DRV www.ham-radio-deluxe.com - Original Message - From: Tony I'll give psk31 lowercase a run through the simulator Simon. Thanks for the tip.
Re: [digitalradio] More Path Simulations: Contestia / RTTYM and others
Simon, There does seem to be a slight improvement in PSK31 with lowercase. I put both upper / lower through the simulator with identical path parameters. Had to increase the SNR quite a bit to get the print to come though though - even the mid-latitude disturbance can be a bit hard on this mode. Thanks... PSK31 - SNR +6db - Mid-latitude Disturbed Tr E QUICK BROWN FOX JUMPS OVER THE LAZY DOG THE QUICK BROWN FOX J4Mi S OVeoR THE LAZY DOG THE QUICK BROWN lOX J=PS OVER THE LAZY DOG THE QUICK BROWN» aK JUMPS OVER THE LAZY the quick brown fox jumps over the lazy dog the quick brown fox jumps over tre lazy dog the quick brown fox julps over tae lazy dog Tony -K2MO - Original Message - From: Simon (HB9DRV) simon.br...@kns.ch To: digitalradio@yahoogroups.com Sent: Sunday, May 24, 2009 2:35 PM Subject: Re: [digitalradio] More Path Simulations: Contestia / RTTYM and others PSK lowercase will be interesting, as *everyone* on this list knows lowercase PSK is faster and more robust, yet many Hams send everything in uppercase - calling CQ DX in uppercase is just - daft :) FWIW The only difference between Contestia / RTTYM and Olivia is that Olivia is a 7-bit char set, Contestia 6-bit and RTTY-M 5-bit. Simon Brown, HB9DRV www.ham-radio-deluxe.com - Original Message - From: Tony I'll give psk31 lowercase a run through the simulator Simon. Thanks for the tip.
Re: [digitalradio] More Path Simulations: Contestia / RTTYM and others
FWIW The only difference between Contestia / RTTYM and Olivia is that Olivia is a 7-bit char set, Contestia 6-bit and RTTY-M 5-bit. Certainly makes for interesting mode characteristics Simon, especially when you compare robustness vs. character speed. I've noticed that Olivia 4/500 has the same wpm rate as Contestia 16/500, but Contestia is some 6db more robust. Tony -K2MO - Original Message - From: Simon (HB9DRV) simon.br...@kns.ch To: digitalradio@yahoogroups.com Sent: Sunday, May 24, 2009 2:35 PM Subject: Re: [digitalradio] More Path Simulations: Contestia / RTTYM and others PSK lowercase will be interesting, as *everyone* on this list knows lowercase PSK is faster and more robust, yet many Hams send everything in uppercase - calling CQ DX in uppercase is just - daft :) FWIW The only difference between Contestia / RTTYM and Olivia is that Olivia is a 7-bit char set, Contestia 6-bit and RTTY-M 5-bit. Simon Brown, HB9DRV www.ham-radio-deluxe.com - Original Message - From: Tony I'll give psk31 lowercase a run through the simulator Simon. Thanks for the tip.
Re: [digitalradio] [Fwd: Your comments on Polar Paths and Digital Modes]
Rick, Re: Polar Paths There's no doubt that the polar ionosphere can be brutal and it sounds like you had a 'double whammy in your case where signal strength was an issue in addition to polar distortion. The RSID may have been useful in this case providing Ken was using it at the time. You might have been able to force his software to switch to an even more robust mode. Hey, if it was easy, we could all just get on Skype and talk to Ken ; ). It's the fascination with RF that seems to keep us going. Tony -K2MO - Original Message - From: Rick W mrf...@frontiernet.net To: digitalradio@yahoogroups.com Sent: Sunday, May 24, 2009 10:45 AM Subject: Re: [digitalradio] [Fwd: Your comments on Polar Paths and Digital Modes] It was 1425Z here in SW Wisconsin and I was copying JA1RZD on 14072.5 + 1500 Hz with near 100%, but he could not hear me. Very low noise and no S-meter reading on my end. After calling him a few times, he did ask QRZ and later KC7?? but I can imagine that noise levels might be much stronger on his end. Also, his web site indicates he can run 350 watts on MFSK and I am only running 25. OK, kicked it up to 200, HI, but no luck either. Hearing WF7T, but not zero beat with him and did not link up. Maybe that was the 7 station that JA1RZD heard? 73, Rick, KV9U Tony wrote: All, Received the following email from Ken, JA1RZD. Tony -K2MO Hi Tony, Thank you for the QSO on March 27 MFSK mode. I happen to find your comments on Polar Paths and Digital Modes on the following page. http://www.mail-archive.com/digitalradio@yahoogroups.com/msg19939.html Your comments are exactly the same as I experienced over the past several years. I would like to point out one downside of MFSK. It is very difficult find stations on MFSK mode. I normally call CQ on 14.072.5 MHz plus 1500 Hz audio but it is rare to be called from the USA. European stations are much more active. If you know the active frequency of MFSK, please let me know. Or _please inform to the subscribers that I call CQ on 14.072.5 MHz USB plus 1500 Hz MFSK_. I hope to see you again on MFSK mode. The 20 m band is open from 14z to 17z to the USA and Europe from Japan. 73 de JA1RZD, Ken P.S. Please visit my page on QRZ.com. Navigate to the map and zoom in to max on picture mode, you will see the satellite pictue of my antennas. _ ??25GB?? http://skydrive.live.com/?showunauth=1
[digitalradio] New member needs help
Am a gen. operator call sign KC8SVE and am needing help to set my radio and comp Welcome, What help do you need? Andy K3UK
