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. After a strong storm, the 80m vertical fallen. On average I run about 30 watts only on this mode and have had some success on 70cms along with the other bands. FT8: Saving Ham Radio Or Killing It? | Hackaday The data being gathered also includes more than just PSK spots, it include JT65 and FT8 -- with FT8 the overwhelming majority at the moment. Hit tab to get into that menu. From: FT8-Digital-Mode@groups.io [mailto:FT8-Digital-Mode@groups.io] On Behalf Of Chuck Hemstreet. Why would I want to operate FT8? - Lucas / W6AER. Why are the signal reports negative numbers? Essex Ham is dedicated to supporting Amateur Radio. Please Log in or Create an account to join the conversation. Display Reception Reports. https://physics.princeton.edu/pulsar/K1JT/wsjtx.html WSJT downloads for all platformshttps://physics.princeton.edu/pulsar/K1JT/devel.html WSJT-X source codehttps://github.com/kgoba/ft8_lib FT8 encoderhttp://laarc.weebly.com/uploads/7/3/2/9/73292865/ft8syncv8.pdf Synchronization in FT8https://en.wikipedia.org/wiki/Low-density_parity-check_code LDPC code, Coding, Tutorials, News, UX, UI and much more related to development, Python/IoT developer and data engineer, data science and electronics enthusiast, https://physics.princeton.edu/pulsar/K1JT/wsjtx.html, https://physics.princeton.edu/pulsar/K1JT/devel.html, http://laarc.weebly.com/uploads/7/3/2/9/73292865/ft8syncv8.pdf, https://en.wikipedia.org/wiki/Low-density_parity-check_code. WSJT-X This is the client that most people use for decoding FT8. Some elements, such as rich link embeds, images, loading indicators, and error messages may get inserted into the editor. For details of this cookie, go to. Want to say thanks? Subject of the new topic: I am running . 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. 3,298 Stations <0 698 Stations >0. . New comments cannot be posted and votes cannot be cast. This article was first sent to the german Funkamateur magazine. Now, with FT8, I have real comparisons and can surely see a 5 - 10 db difference for most contacts. That lets a massive amount of signal into the mixer. Between the radio and SteppIR DB18, I have these devices inline: Welcome to the world of Antennas, Propagation and Black Box Technology!! But this is my personal opinion. 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. Forgot your username? Free Content. signal reports when using FT8 and JT65. I received services from the Prefet of the TAAF the new convention me allowing me to start my HF activities under the conditions set by the IPEV. First off, you need to connect your PC to your HF rig. Radio operator "IZ1M" replies with his callsign and grid square locator. Because only this information can be sent, FT8 is not a "conversation" mode. I've seen variations of that kind coming from the same. canadian space agency; outlander claire tells jamie the truth; kendra place apartments gallatin, tn New comments cannot be posted and votes cannot be cast. 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. Remember this is a S/N report,not a power level report. 23 dB Difference In Signal Reports WA9ONY 200 X Weaker Signal. The DT in the window of the software shows TIME DIFFERENCE. Is there a solution? Your transmit and receive capabilities are not that much different. Records the default button state of the corresponding category & the status of CCPA. These modes, while great for modest stations (read . According to WSJT-X instructions you should tune up for maximun output then back off till the power output drops on you monitor. However, in a VHF+ contest, WSJT-X Auto-Sequencing will fail to exchange the required information for a complete QSO if one station is configured to use Contest Mode and the other is not. This is just a summary of thebasics, plus a few tips Ive picked up along the way. FT8 decoding Issue #3 kgoba/ft8_lib GitHub That would help. ft8 signal reports explained. Conclusion. 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. The cookie is used to store the user consent for the cookies in the category "Other. Groups.io. CleanTalk sets this cookie to complete an anti-spam solution and firewall for the website, preventing spam from appearing in comments and forms. You know I hadn't even thought of that. Topics from Around the World / FT8 and its Decibels May.2021 - Monthly Of course, before the mass appearance of personal computers in homes, probably no radio amateurs were thinking about transmitting and decoding digital data. The __qca cookie is associated with Quantcast. Is there a setting that I am missing somewhere to fix this problem. Nothing defaults to paragraph. Examples: Does anyone else have this trend as well? Forgot your password? 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. Set by the GDPR Cookie Consent plugin, this cookie is used to record the user consent for the cookies in the "Advertisement" category . Maybe invest in antenna & pre-amp. Too off and it will not work at all. FT8 signal report Sent/Rcv consistent difference. There are several types of interface available, depending on your rig. FT8 transmits and receives only the bare essentials needed to make an amateur radio contact (QSO): Exhange of callsigns, readability report, signal strength report, and "best regards" ("73"). 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. Please Log in or Create an account to join the conversation. No, I can't confirm that, I only use FT8. Sometimes propagation is like a laser. I always thought, its likely because of a quiet location, a good radio (6600M) and maybe others running more power. Good luck! Band conditions across the terminator and across the equator also affect your signal and provide only a one way path. ft8 signal reports explained. JS8 is a variant of FT8 which allows operators to send more information and converse with each other. Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. No Membership Fees. That being said, it just means you are coming in loud at the receiving location. My first action will be to check all coax connections. As a result, the signal report I end up giving is like 30dB higher than it would be if I left the entire passband open. Pretty fast I got a response that they already have enough articles about FT8 and a screenshot of their archive with articles like Using FT8 in DXpedition in Borneo. It's not an absolute scale. By far the most useful weirdness is to shift-click on the waterfall to put your TX signal there (think of it as shift my TX). ft8 signal reports explained. Just kind of looking for a FT-8 signal report sanity check. 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). When I last had a play the lower the alc the smaller the spurs at each tone change. FT8 in VK - Activation Reports - SOTA Reflector FT8 isn't a QRP mode. +19 is about the best you should get, down to about -24dB. Minutes for Sparkly markers. *** As an alternate, sometimes you will see: N8DXE KE8FMJ RRR KE8FMJ says Report Received, KE8FMJ N8DXE 73 N8DXE says Best Regards, N8DXE KE8FMJ 73 KE8FMJ says Best Regards. 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. Some use the S-Meter on their radios to give the reading, which is fine if it is accurate (it is notusually as there are many factors) or by ear which frankly is a better way to go about it. I am running a full 100W into my radio. Tell us more about your antenna system - antenna, feedline, any transmatch needed, etc. Hertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). No, I have just as much noise here as most others living in suburbia. We also use third-party cookies that help us analyze and understand how you use this website. The chart above shows the agreed-on frequencies for FT8. FT8 from Setup to DX W6AER- Pacifica, CA reading instead of in a more conventional, though more subjective, rstS reading), (This can also be shortened to "RR73" indicating, "Report Received 73," which would be a completed QSO), (not used if KI7PO's third transmission was "RR73"), Operators will transmit one message within a 15 second time-frame, then wait for another 15 seconds to receive any incoming replies (then transmit again, then wait again, in a cycle that exchanges messages until the conversation is completed). If band is open pulls in FT8 quite well, Copyright 2023. This cookie, set by Microsoft, is used by the website to store the user's session ID and is sent with each request to the ASP.NET application. 4. These features can be selectively enabled to match band and signal conditions as well as the user's available CPU horsepower. ft8 signal reports explained - ammcap.com Best advice I can offer, is check pskreporter. Frequency modulation 8-FSK, tone space is 6.25Hz. You also have the option to opt-out of these cookies. Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors. 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. what is the federal supplemental tax rate for 2022. motorcraft battery cross reference chart; pda soccer team location; Menu Despite this, according to the statistics, people definitely enjoy FT8 usage. Have you ever wondered why JT65 reports a Signal-to-Noise Ratio (SNR) typically in the range -30 dB to -1 dB? Don't you dare speak ill of my compromise antenna, at a compromise height, at a compromise location. CleanTalkUsed to prevent spam on our comments and forms and acts as a complete anti-spam solution and firewall for this site. I always thought, its likely because of a quiet location, a good radio (6600M) and maybe others running more power. Create an account. It is very easy to beat an EFHW at 35'. Any suggestions on what the problem might be? This means your pre-amp is worse than theirs, or they're putting way more power into their antenna. Most likely your noise level is much lower than the station(s) you are working but I have also noticed a difference in the reports I give out depending which radio/AGC setting I am using. ft8 signal reports explained - dianahayfetz.com The _ga cookie, installed by Google Analytics, calculates visitor, session and campaign data and also keeps track of site usage for the site's analytics report. It's a shame that most people don't understand that FT8 is designed for weak signal communication. 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. As you can see here, I decoded everything from -21 to +05 range on 80m using the WSJT-X Software. This cookie is set by GDPR Cookie Consent plugin. FT8 uses 8-GFSKGaussian Frequency-Shift Keying modulation, includes forward error correction (FECForward Error Correction), and has an effective data rate of 5 words per minute. 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. 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. 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. Very helpful. Using this bandwidth, lots of stations can be decoded in parallel. Looking at your location and excellent installation, Id venture to say you have much better receive capabilities than most other stations. It works only in coordination with the primary cookie. Norfolk Amateur Radio Club. If band is open pulls in FT8 quite well The following user(s) said Thank You: M0ZAH ft8 signal reports explained Yep I've been lucky enough to get Fiji x2 and Kenya in the past week or 2 so it's definitely working! FT4 is faster still (7.5 s T/R sequences) and especially well-suited for radio contesting. A good test bed is WSPR. This cookie, set by YouTube, registers a unique ID to store data on what videos from YouTube the user has seen. I slide it down until my TS-590s ALC meter shows nothing. Reddit and its partners use cookies and similar technologies to provide you with a better experience. The cookies is used to store the user consent for the cookies in the category "Necessary". Rich Text Editor. A +12 signal does not say you are splattering. Online Investing Guide To buy more radios! 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)) If the average recipient has a lot more noise than you, you will get a worse report on average. I'm using a TS-590S for FT-8 on a MyAntennas 4010-1k EFHW that's around 35'. I got a + signal report back from one and a -18 or so back from the other. This website uses cookies to improve your experience while you navigate through the website. Re: FT8 for Missouri QSO Party - groups.io However, DX communications are actively performed using FT8. If a received CW signal is S9 and the meter reads S7 without a signal, the SNR is 12dB (normally each S-unit is 6dB). The indicated FT8 signal to noise ratio is very misleading. The This is measurable to some extent by the signal reports on FT8. Heck, I even see a difference in dB when running two slices off the same antenna. PDF The FT4 and FT8 Communication Protocols - Princeton University DT: Calculated offset of the received signal from your local clock Values above .3 are not optimal. Create an account. FT8/FT4 Signal Reports in upload to eQSL.cc - wsjtx.groups.io Signal reports in FT8 are signal to noise ratio, NOT strength. Sent: Saturday, May 30, 2020 10:20 AM. On the other hand, the almost complete automation of the process definitely reduces the role of operator skills. Finally, after the conversion, we get a sequence of the form 31406520 00000001 04531130 52105775 34623140 65267442 47514714 36372416 64750133 3140652 where each digit represents a tone number from 0 to 7. A lot of people hate FT8. How's the ALC meter looking, antenna gain or attenuation, RX bandwidth, etc. FT8 - Wikipedia