Any suggestions on what the problem might be? What's worse in the minds of some . I've been licensed long enough to know this, but I've only recently in the past couple of months started on FT-8. But opting out of some of these cookies may affect your browsing experience. New comments cannot be posted and votes cannot be cast. You are just very strong. This letter is often printed on QSL cards between quotation marks (like "O" ) in order to clearly indicate that it's a letter O and not a zero. But I do look at a lot of FT8 op QRZ profiles of people running an Icom 7300 to some freakishly compromise setup. For example, an FT8 signal is 50hz wide (bandwidth). The actual minimum signal to noise ratio of FT8 is around 1 dB in 50 Hz (-156 dBm in a gaussian channel with a perfect 0 dB noise figure receiver), which is consistent with a 1/2 rate LDPC code like the one FT8 uses. The Group moderators are responsible for maintaining their community and can address these issues. Having the sequence shown above, we can easily generate a WAV file or directly control the frequency synthesizer in the case of an autonomous beacon. The one on the right, being about 100Hz wide, is a second harmonic, and the one on the left, being about 150Hz wide, may be a third harmonic. I even run the attenuator on 40M. Conventions may change with time or by user preference; you can modify the frequency table as desired." It's not an absolute scale. Press question mark to learn the rest of the keyboard shortcuts. Reddit and its partners use cookies and similar technologies to provide you with a better experience. Groups.io. The message length is 15s, and messages are transmitted via fixed time slots, which makes decoding easier. A +12 signal does not say you are over driving. I know that others may run more than that, even for FT8, but probably not many. It includes integration with PSK reporter. The new suggested dial frequencies are 7.071, 10.133, 14.071, and 50.310 MHz. It is very easy to beat an EFHW at 35'. Norfolk Amateur Radio Club. FT8 signal report Sent/Rcv consistent difference. Something like an over driven audio stage generating harmonics of the audio. ft8 signal reports explained. I like to keep things as up-to-date and as accurate as possible. There are 4 slots per minute, and you transmit for one 15 second block, then listen for replies for 15 seconds, and transmit again for 15 seconds. Best advice I can offer, is check pskreporter. Conclusion. PayPal or Coffee donations are always appreciated. The radio also needs to be in DATA mode. The simple fact is that they probably have a better antenna than you and yes, they may be running more power, but that won't make too much difference. Ham radio callsigns have a strictly defined format of letters and numbers, which also allows us to record them in a more compact form. I always thought, its likely because of a quiet location, a good radio (6600M) and maybe others running more power. Quantserve sets the mc cookie to anonymously track user behaviour on the website. This blog will explore some of these meanings and oddities. In general, the authors did a perfect job of creating an almost completely automated communication tool that could, on the one hand, transmit information more efficiently, and on the other, kill the ham radio spirit in the bud. I primarily run FT8 at 30W into either a 135ft long end fed at about 40ft, or a vertical delta loop with apex around 40ft but base at 6ft. Set by the GDPR Cookie Consent plugin, this cookie is used to record the user consent for the cookies in the "Advertisement" category . With the bonus of DAX not requiring A/D conversion and the attendant degradation of received signals, your great installation, radio, and location really do put you ahead of the average Joe. timeout for worked markers. FT8 handles very weak signals very well, meaning that a Foundation licence holder with just 10 watts should be able to make some impressive contacts with a modest antenna - something not possible with voice or some other data modes. This ham radio digital mode appeared in 2017, and since then its popularity has only been growing. From a psychological point of view, the FT8 mode is also interesting to analyze. Free Help. Here you will see that on my FT8 Transmit some decoded me as +13 and others closer as -3, this can be due to skip zones as well as different antenna setups, etc. transmitters. Different colors are different bands and minutes indicate the last time they heard and reported back automatically. Press J to jump to the feed. On Tuesday, January 4, 2022, 07:13:50 AM CST, John wrote: On Tue, Jan 4, 2022 at 09:15 PM, Michael Black wrote: Suggest running at 50% duty cycle on the IC7610 for data. It's a really smart combination of bit optimization, mathematics and usability. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. Since FT8 automatically transmits and receives only the bare minimum of information necessary to complete what officially counts as an amateur radio contact (QSO), FT8 has been criticized by some amateur radio enthusiasts as a means for radio amateurs to 'cheat' their way to victory in certain contests and award categories. I noticed for a while that I can hear better than I am being heard. A +12 signal at times says more about the other persons low noise floor than whether you maybe a strong signal. Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features. This is just a summary of thebasics, plus a few tips Ive picked up along the way. Probably everyone who is at least a bit interested in amateur radio and telecommunications heard about the FT8 digital communication protocol. I will be starting a donor thank you page soon so please indicate if you wish to be not listed. (in the form of a WSJT-X dBThe decibel (dB) is a logarithmic unit used to express the ratio of two values of a physical quantity, here the strength of a received signal. Hello, after years of saying I would never work FT8 I have finally taken the plunge and having a play. The following equations explain why FT8 signals start decoding at -26dB and everything else is below the noise floor: SNRFSKFT8 = SNRreportedFT8 + (10 x LOG (2500 Hz/6.250 Hz)) Nice job. The majority of DX stations have voted in favor of it. If I ran the preamp on it would make the situation even worse. Donation will show as going to SFBA Tech, this is normal, under the same paypal account. Designed by Shape5.com, forums.qrz.com/index.php?threads/the-skignal-reports.591508/. That would help. If band is open pulls in FT8 quite well, forums.qrz.com/index.php?threads/the-skignal-reports.591508/. With all features enabled, JTDX seems to decode more signals on a crowded band than WSJT-X. The tone is only used for CW (Continuous Wave aka Morse Code) transmissions. Looking at your location and excellent installation, Id venture to say you have much better receive capabilities than most other stations. Common to receive say a European station after their dusk but nothing you can do to make them hear you. Please leave your Call Sign if applicable. This mode allows communicating with a lower s/n ratio compared to PSK31 or RTTY. I do and I encourage you to do so as well. FST4 is designed especially for the LF and MF bands. Why are the signal reports negative numbers? Digital modes have been gaining popularity since around the 90s. ft8 signal reports explained 97867 74664 head gravity tour string pattern Facebook south tyneside council white goods Twitter best chicken parm near me Youtube. These cookies will be stored in your browser only with your consent. joel meyers magician net worth. Here is the generally accepted System: Basic rule: Higher Numbers are always better. It contains a hashed/encrypted unique ID. For details of this cookie, go to, The __gads cookie, set by Google, is stored under DoubleClick domain and tracks the number of times users see an advert, measures the success of the campaign and calculates its revenue. JS8 was created to allow the basic principles of FT8 to be applied to sending actual messages (instead of just the bare minimum QSO information that FT8 limits operators with). Radio operator "IZ1M" replies with his callsign and grid square locator. ), QSO-only communication protocol used by amateur radio ("ham radio") operators. Many Thanks for the link James, explains it well, a useful chart that gives the scale. 2,652 Stations <0 1,232 Stations >0. A +12 signal does not say you are splattering. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. ie you transmit a 50Hz wide ft8 @ 500 and there will be a 100Hz wide image @ 1000 and a 150Hz wide image @ 1500 and a 200Hz wide image @ 2000 and so on. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. On average I run about 30 watts only on this mode and have had some success on 70cms along with the other bands. Antenna for 70cms is a 7 ele ZLspecial, fixed towards SE up at about 15 feet. Consider a practical example the transmission of the phrase CQ DL1ABC JO62. Special message It is popular among amateur radio operators for its ability to send and receive messages despite challenging propagation conditions, high noise environments, low power operations ( QRP ), or even compromised antennas. AE6Y will be active again as P49Y from Aruba Island, IOTA SA - 036, in ARRL DX CW Contest, 18 - 19 February 2023. This includes: harm to minors, violence or threats, harassment or privacy invasion, impersonation or misrepresentation, fraud or phishing. Essex Ham is dedicated to supporting Amateur Radio. Typically the interface will appear as a COM port and WSJTX will need to be set to the correct COM, PTT So that the PC can put the rig into Transmit, the software needs to know how to trigger Transmit. First number is for Readability (R), the second is for Strength (S), and the last one is for Tone (T) when representing CW signals. Replied by G0CBOon topic FT8 Signal Reports Many Thanks for the link James, explains it well, a useful chart that gives the scale. The full coax length of LMR400 is about 160 feet long (to the tower and up). Frequencies for JS8Call and FT8 are adjustable by the user. But this is my personal opinion. SNR is expressed in dB (decibles). ft8 signal reports explained If nothing else sticks from these Hinson tips, at least remember to shift-click. The application WSTJT-X is one of themost common used for FT8 (As well as JT65), and was written by the inventor of the mode, Joe Taylor K1JT. 3,298 Stations <0 698 Stations >0. . On a trial basis, and in response to numerous suggestions from around the world, we have added a second set of suggested dial frequencies for FT8 on three HF bands and also on 6 meters. The DT in the window of the software shows TIME DIFFERENCE. This article was first sent to the german Funkamateur magazine. FT8 ("Franke-Taylor design, 8-FSK modulation") is an extremely-weak-signal, digital, narrow bandwidth (50 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). the QSO record in ACL log does contain the signal report . I forgot how the software handles the ratio. As we can see, FT8 is quite an interesting protocol. Operators may or may not be aware of the noise they're creating on the band's, but the result of that noise is is qrm for the others trying to operate on the same band . It's in fact often practically unattended. The name FT8 stands for Franke and Taylor, 8-FSK modulation. CleanTalk set this cookie to provide spam protection. Hello, after years of saying I would never work FT8 I have finally taken the plunge and having a play. If you and your next door neighbor were running FT8 at the same time, with perfectly tuned and adjusted 30 watt rigs, you can be sure that you'd both be "splattering" all over the place. I got a + signal report back from one and a -18 or so back from the other. My receive is quiet enough I am giving +10 or higher reports by s2 on some bands. You know I hadn't even thought of that. Getting started with FTA Free To Air Satellite Television. Please Log in or Create an account to join the conversation. The RST reporting system is represented in three numbers for CW and two numbers for Phone. Thank you! Nothing defaults to paragraph. If you're new to the hobby, we can help you get started - we've helped over 9,200 . biryani by kilo halal or jhatka; sherlock holmes siblings; pizza restaurants from the '80s that no longer exist; what happened to izzy morales mother When the audio is over-driven, that signal can take up many times more bandwidth than a properly modulated FT8 signal. First off, you need to connect your PC to your HF rig. +19 is about the best you should get, down to about -24dB. 15' on the transformer side and around 35' at the far end up in a tree. Hit tab to get into that menu. FT8 is a weak signal - not a low power mode (power works the really weak ones) FT8 lets you work DX on 6m when there would be none FT8 is suddenly dominating VHF/UHF contesting FT8 lets you work weak signal DX without proficient CW skills FT8 is like having constant DX beacons on every band Forgot your password? The other thing to keep in mind is that signal level is relative to the noise level around the signal. Rules don't say anything about Grid Squares or FT8 signal reports. The cookie stores information anonymously and assigns a randomly generated number to recognize unique visitors. The mode is a modification of the JT9 & JT65 weak-signal modes that have been around for nearly ten years, an eternity in the digital world. Some modes, such as JT65, JT9, FT4 and FT8, for example, use a dB system but more about these later. Analytical cookies are used to understand how visitors interact with the website. Does anyone use a retevis rt95 I tried to join the Monday night net with my Get your Foundation Licence from home (click here), GB1BEL: JOTA 2022, Belchamps Activity Centre, Results from Watson Magitenna installed in loft, G0QQQ confirms signal report & replies with his own report. by | Jun 10, 2022 | forsyth county newspaper | the center does not hold meaning | Jun 10, 2022 | forsyth county newspaper | the center does not hold meaning New chunks of messages arrive every 15 seconds, and are decoded by the WSJT-X software, which displays the messages like this: FT8 handles very weak signals very well, meaning that a Foundation licence holder with just 10 watts should be able to make some impressive contacts with a modest antenna something not possible with voice or some other data modes. A 14-bit CRC will also be added. I am using Windows 10 with WSJT-X v2.5.3 with a USB connection to an iCom 7610 transceiver running 100w. These features can be selectively enabled to match band and signal conditions as well as the user's available CPU horsepower. Many ops can compensate with more power, but the problem with that is you quickly exceed your receive capabilities - people can hear you but you cant hear them. CleanTalk sets this cookie to store dynamic variables from the browser. During contest and for DX Expeditions everyone is 59 for Phone (USB/LSB) ad 5NN for CW in order to expedite exchange. IZ1M confirms signal report & replies with his own report, KI7PO tells IZ1M, "Reception Report Received". What are the frequencies? JS8Call is an experiment to test the feasibility of a digital mode with the robustness of FT8, combined with a messaging and network protocol layer for weak signal communication on HF, using a keyboard messaging style interface. JS8, a variant of FT8, can send full conversations and relay messages, CQ call from radio operator "KI7PO" along with his. When I last had a play the lower the alc the smaller the spurs at each tone change. WSJT-X This is the client that most people use for decoding FT8. 1 week 2 weeks 1 month 2 months 3 months 6 months 1 year no. FT8 transmits this minimum of information in a semi-automated fashion on its own time frame. The above is an example of what you will find at the PSKreporter.info website where you can monitor your own transmissions and see where you are heard. If you are wondering what Amateur Radio is about, it's basically a two way radio service where licensed operators throughout the world experiment and communicate with each other on frequencies reserved for license holders. I am running . This means your pre-amp is worse than theirs, or they're putting way more power into their antenna. On average I run about 30 watts only on this mode and have had some success on 70cms along with the other bands. Records the default button state of the corresponding category & the status of CCPA. ft8 signal reports explained. This cookie, set by Cloudflare, is used to support Cloudflare Bot Management. Also, JTDX, which many of us use because it often decodes weak signals that WSJT-X misses, uses a different algorithm for computing that report (usually many dB lower). 73 Cliff W3KKO. FT8 is a digital mode, too. Now, with FT8, I have real comparisons and can surely see a 5 - 10 db difference for most contacts. 4. Google DoubleClick IDE cookies are used to store information about how the user uses the website to present them with relevant ads and according to the user profile. With the new sun cycle, it is busier than ever20 meters is packed around the clock, so its even difficult to find an open spot to transmit. I've contacted 2 people in the same city before one after another. Noticed that now when a QSO is logged, the upload to eQSL.cc no longer includes the signal reports added to the comment field of the eQSL record (like FT8 Sent: -19 Rcvd: -07). In amateur radio, QRP operation refers to transmitting at reduced power while attempting to maximize one's effective range. The numbers tell you the strength of your FSK signal (6.25 Hz) as it compares to the signals in an entire 2.5 kHz SSB bandwidth. Its a really smart combination of bit optimization, mathematics and usability. FT8 handles very weak signals very well, meaning that a Foundation licence holder with just 10 watts should be able to make some impressive contacts with a modest antenna - something not possible with voice or some other data modes. FT8 uses 8- GFSK modulation, includes forward error correction ( FEC ), and has an effective data rate of 5 words per minute. Your antennas ability to direct that transmit power at the receiving station and. Image source: https://www.amateurradio.com/over-2000-miles-on-80m-with-the-warbler/ (2010). There are several types of interface available, depending on your rig. This runs in the background and keeps your clock in-sync by resetting the time to one of the online atomic clock servers every 20 minutes. This cookie is used for targeting and advertising purpose. canadian space agency; outlander claire tells jamie the truth; kendra place apartments gallatin, tn Be aware that as currently implemented, WSJT-X will set your dial to the lowest frequency for the selected mode and band, when you switch bands. MOD input should only listen to you PC of course. WARC Bands: What are They and How Can I Take Advantage of Them. Subject of the new topic: Functional cookie placed by CleanTalk Spam Protect to store referring IDs and prevent unauthorized spam from being sent from the website. My first action will be to check all coax connections. At first, just a fun fact. how to simplify expressions with exponents fractions. Its hard to argue with that, but I hope that there are still not only radio operators but also engineers who are interested in how these things really work. There doesn't necessarily need to be a new operating class for Data modes, but that would be OK too. You all have seen it in social media and on the air. By clicking Accept All, you consent to our use of cookies, however you can select "Cookie Settings" to control your consent. Welcome to Reddit's own amateur (ham) radio club. JS8Call (JS8) is an amateur radio QSO communication mode based on FT8. This cookie is placed by CleanTalk Spam Protect to prevent spam and to store the addresses (urls) visited on the website. If nothing else, remember to shift-click . Here CQ is the calling code, DL1ABC is a callsign, and JO62 is the grid locator. I've seen the same, that outlier station with a good receive setup or just weird propagation magic that copies you +12 while everyone else in that grid is coping you -10. It's main advantage is that it allows low-power stations with marginal Let's say I call CQ and a few stations respond, the first being pretty weak (call 1st enabled). Only thing I dont really understand is how the signal reporting works. Really wide spurs at each tone change during the transmission. The fact that they align properly to the FT8 15-second period, and have 8 tones (the same as FT8) is a sign that these may be distorted FT8 signals, caused by AF harmonics in the transmitter or the receiver. Examples: Does anyone else have this trend as well? Similarly, the JO62 grid-locator is written as a 2-byte number 44 FE 50% save of the data size, compared to the standard ASCII string. Remember this is a S/N report,not a power level report. Now, with FT8, I have real comparisons and can surely see a 5 - 10 db difference for most contacts. (Serial number sequencing for DX op's could be a challenge for those op's) The typical JT / FT8 signal report data would interchange nicely instead of RS (T) without any modifications. Starting with theWSJT-Xversion 2.2.0-rc2 (available for downloading from theWSJT-X website) theWSJT-Xdevelopment team has also published additional FT8 overflow frequencies: 7.071, 10.133, 14.071, and 50.310 MHz. The message length of 77 bits was chosen as a compromise between the transmission time (about 13 seconds, which is not so fast) and the information capacity the message could be made longer, but the transmit time should also be increased. This is measurable to some extent by the signal reports on FT8. Heres what Im using: As with all data modes software, setup requires some setting up, notably: Your computers clock does have to be spot on with FT8. Does anyone know what this connector is please? This will cause the software to compare the signal to the noise floor of the virtual audio signal which is way lower than my RF noise floor. What sort of AGC are you using? Different colors are different bands and minutes indicate the last time they heard and reported back automatically. ), or even compromised antennas. If band is open pulls in FT8 quite well, Copyright 2023. It's not a measure of your output. Press question mark to learn the rest of the keyboard shortcuts. Some of the data that are collected include the number of visitors, their source, and the pages they visit anonymously. This page was last modified on 14 April 2021, at 21:03. You can find multitudes of contacts on these frequencies. I've contacted 2 people in the same city before one after another. To edit a paragraph's style, hit tab to get to the paragraph menu. Here's the actual math behind the signal report if you want to deep dive into the concept: The noise floor is relative to the receiving station, however. This cookie is set by DoubleClick to note the user's specific user identity. This signal is transmitted almost "as is" into the air, and the backward process of decoding is activated on the receiver side. Share them in the comments below or email me at KE8FMJ@arrl.net. These frequencies will appear in your drop-down band-selector list after you go to the Settings/Frequencies tab, right-click on the frequency table, and select Reset. You can also use the excellent online PSK Reporter website to see where your FT8 CQ calls are reaching, as seen in this screenshot: This isnt a full how to guide on setting up FT8, as there are plenty of those online already. The data being gathered also includes more than just PSK spots, it include JT65 and FT8 -- with FT8 the overwhelming majority at the moment. It will gain acceptance in SOTA too. I slide it down until my TS-590s ALC meter shows nothing. CleanTalk sets this cookie to prevent spam on the site's comments/forms, and to act as a complete anti-spam solution and firewall for the site. What do all the characters mean? The cookie is used to store the user consent for the cookies in the category "Performance". Just to report that quarantine in between I was able to pump some hours into the long delayed FT8 transceiver based on a raspberry pi using the RPiTX package and now ft8_lib. As we can see, FT8 is quite an interesting protocol. Basically anything can be proven and figured out,, but the variables are enormous.. toggle quoted message. what is the federal supplemental tax rate for 2022. motorcraft battery cross reference chart; pda soccer team location; Menu In 2017, FT8 started to become the most popular of the various data modes. Post author By ; Post date brandi redmond instagram; frida kahlo husband quote on ft8 signal reports explained on ft8 signal reports explained UTC: When the signal was received, dB: Signal strength of the received signal in dB. FT8 is a very popular protocol and continually growing. I think this message isn't appropriate for our group. Antenna for 70cms is a 7 ele ZLspecial, fixed towards SE up at about 15 feet. Buddy WB4OMG. Welcome to JS8Call JS8Call is software using the JS8 Digital Mode providing weak signal keyboard to keyboard messaging to Amateur Radio Operators. I HIGHLY recommend doing this. An inline formatting menu will show up when you select text. Multiple FT8 signals in 3 kHzKiloHertz (kHz) 10^3 Hz audio bandwidth, 15 sec markers. Very helpful. JS8Call turns FT8 into a "chat" mode, allowing stations . Freq: Frequency (Hz) of the received signal, Message Meaning, CQ KE8FMJ EM89 CQ call from KE8FMJ, KE8FMJ N8DXE EN91 N8DXE replies with location, N8DXE KE8FMJ-10 KE8FMJ responds with a signal report, KE8FMJ N8DXE R-09 N8DXE replies with own report, N8DXE KE8FMJ RR73 KE8FMJ says Report Received and Best Regards***, KE8FMJ N8DXE 73 N8DXE says Best Regards. At the time of writing (Feb 2018), it appears to be the most popular for a number of reasons: As with modes such as JT65 and PSK31, you interface your HF rig to a computer, and send out text encoded by your computer over the amateur bands. This cookie is set by GDPR Cookie Consent plugin. Each FT8 transmission can support up to 13 text characters, coded using forward error correction to ensure proper transmission and decoding despite common radio effects such as fading, interference or poor signal propagation conditions, or low power operation with compromised antennas in restricted urban spaces.