ft8 signal reports explained

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. That being said, it just means you are coming in loud at the receiving location. Information exchanged in a minimal two-station contact typically consists of call signs, four-character Maidenhead locators, signal reports, and acknowledgments. FT8 uses the clock to know when to decode and transmit, so for best results, time has to be EXACT. JTDX adds a number of FT8 decoding options that are useful on crowded bands and in situations when signals are very weak. The indicated FT8 signal to noise ratio is very misleading. The Re: FT8 for Missouri QSO Party - groups.io JTDX - Feature Rich Software for FT8 and Other JT Modes The new topic will begin with this message. The cookie is used to store the user consent for the cookies in the category "Analytics". Forgot your username? Is it because I'm only running around 1/2 power? I wonder if raising the far end up any more would help? Press question mark to learn the rest of the keyboard shortcuts. Heck, I even see a difference in dB when running two slices off the same antenna. Try lowering the AGC, if any, and/or the output audio level. 4. . Rules don't say anything about Grid Squares or FT8 signal reports. Looking at your location and excellent installation, Id venture to say you have much better receive capabilities than most other stations. 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). I've contacted 2 people in the same city before one after another. I can see on an external SWR meter that I am sending 100w. These features can be selectively enabled to match band and signal conditions as well as the user's available CPU horsepower. I like to keep things as up-to-date and as accurate as possible. Band conditions across the terminator and across the equator also affect your signal and provide only a one way path. Lots of radio amateurs are using digital modes, by only connecting their transceiver to the PC, but most of them have absolutely no clue, of how it works. You know I hadn't even thought of that. Good luck! A good test bed is WSPR. digital modes - Unidentified signals on FT8 frequencies - Amateur Radio The domain of this cookie is owned by Ebay. Automatic miles km. The interface will need to connect into the PCs soundcard (for audio) and typically USB for controlling the radio. canadian space agency; outlander claire tells jamie the truth; kendra place apartments gallatin, tn These cookies ensure basic functionalities and security features of the website, anonymously. Contrary to a lot of angry comments, the stations running high power and getting +10 reports are actually only an S6 above the noise floor. ft8 signal reports explained - dianahayfetz.com Digimode Automatic Propagation Reporter During this step, we transform the message into a tones sequence of different frequencies. 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. WARC Bands: What are They and How Can I Take Advantage of Them. You are just very strong. 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. Very helpful. I got a + signal report back from one and a -18 or so back from the other. Buddy WB4OMG. I've been licensed long enough to know this, but I've only recently in the past couple of months started on FT-8. These modes, while great for modest stations (read . Create an account to follow your favorite communities and start taking part in conversations. I even run the attenuator on 40M. As a result, the callsign DL1ABC will be written as 06 29 17 3B we use 4 bytes instead of 6. ), or even compromised antennas. A lot of people hate FT8. Signal reports for FT-8 can vary by 10dB or more between cycles due to fading and changing polarization. This is measurable to some extent by the signal reports on FT8. When I run FT-8 I set the filter wide open which bumps up to the 15Khz roofing filter instead of the ~3Khz SSB filter. The cookies is used to store the user consent for the cookies in the category "Necessary". Watch the following two sites for your call as well. 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. All this is necessary because the maximum message length is 77 bits (not only predefined symbols but of course, arbitrary text and even telemetry can also be transmitted with similar limitations). FT8 signal reports : r/amateurradio - Reddit Groups.io. 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. By . 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. Lets try to figure it out. You can test it by clapping your hands or sneezing while the FT8 transmission is ongoing, if you see something appearing in the waterfall on your monitor (as I did) then turn the MIC off. All this, combined together, made FT8 so popular. If nothing else, remember to shift-click . I think this violates the Terms of Service. A +12 signal at times says more about the other persons low noise floor than whether you maybe a strong signal. Each message of up to 13 characters takes 13 seconds to send. FT8: Frequencies, Decibels, and Message Meanings. The other thing to keep in mind is that signal level is relative to the noise level around the signal. It's not an absolute scale. FT8 is by nature < 50% duty cycle. - Lucas / W6AER. Because only this information can be sent, FT8 is not a "conversation" mode. PDF The FT4 and FT8 Communication Protocols - Princeton University FT8What Is It and How Can I Get Started? - OnAllBands As with other data modes, youll need some kind of interface box to sit between the rig and your computer. delphinium hybrid blue. The two options require different actions. SNR is expressed in dB (decibles). Forgot your password? It's a shame that most people don't understand that FT8 is designed for weak signal communication. The DT in the window of the software shows TIME DIFFERENCE. Tail Ending QSO Remember the reports you get in WSJT-X are not signal strength values. Set by the GDPR Cookie Consent plugin, this cookie is used to record the user consent for the cookies in the "Advertisement" category . Just kind of looking for a FT-8 signal report sanity check. 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. You can also setup your WSJT-X and other digital software to send reports back so you can analyze your own receives over a period of time or assist others in analyzing propagation. nanninga campground alberta. MOD input should only listen to you PC of course. 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. It is an ICOM feature, not a bug. FT8 - Wikipedia Signal reports in FT8 are signal to noise ratio, NOT strength. PDF Tx Power - stargazing.net I will be on 40 and 80 meter CW, both days. The FT8 digital mode that Joe, K1JT, and company rolled out a little over a year ago has become a game changer in ham radio. I'm using a TS-590S for FT-8 on a MyAntennas 4010-1k EFHW that's around 35'. 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. For a successful QSO, which takes about 90 seconds, decodes occur 4 times a minute, 2 second break between cycles. JS8Call turns FT8 into a "chat" mode, allowing stations . FT8 and Ghost Decodes. Antenna for 70cms is a 7 ele ZLspecial, fixed towards SE up at about 15 feet. Therefore, the complete exchange (QSO) above would take about 105 seconds. Examples of non-digital reports would be: The polite thing to do otherwise is to give an accurate report to the other party so they get a feel for how well their signal is getting through. Analytical cookies are used to understand how visitors interact with the website. Examples: Does anyone else have this trend as well? FT8 uses 8- GFSK modulation, includes forward error correction ( FEC ), and has an effective data rate of 5 words per minute. 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"). RST Signal Reporting Reference Guide W6AER- Pacifica, CA Splattering shows up as an extra wide signal on the receiving waterfall. Google Ads Service uses this cookie to collect information about from multiple websites for retargeting ads. PayPal or Coffee donations are always appreciated. In log 80k QSOs.Problems with low bands. Press J to jump to the feed. The chart above shows the agreed-on frequencies for FT8. Are you sure you wish to repost this message? Show quoted text. It contains a hashed/encrypted unique ID. My first action will be to check all coax connections. Tell us more about your antenna system - antenna, feedline, any transmatch needed, etc. (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. FT8 and Ghost Decodes - Nashua Area Radio Society Why would I want to operate FT8? That means that you need your clock to be accurate to the precise second. 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.