Metatron
New Member
Meserias
www.activenews.ro
Posts: 98
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Post by Metatron on Jul 31, 2022 5:06:12 GMT 2
Comparación de Antenas de recepción:
MLA-30 Loop vs. Mini Whip. Antena SDR activa, XQ2CG
Bonus
Tecsun PL-600 VS Tecsun PL-680
Revisiting two old friends ...
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Metatron
New Member
Meserias
www.activenews.ro
Posts: 98
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Post by Metatron on Jul 31, 2022 5:22:27 GMT 2
Top Ten Shortwave Receivers Summer 2022 - Tecsun H-501X LW MW AM FM Shortwave SSB Receiver - - Eton Satellite Executive SSB Grundig edition -
- XHDATA / SIHUADON D-808 LW MW AM FM RDS -
- Tecsun PL 330 -
Fixing Airspy HF+ Discovery VHF interferences issue
- RSP1A RSPdx RSPduo -
Honorable mention AM FM HD Radio Sangean HDR-14 portable receiver
Honorable mention ATS-25 DSP receiver LW MW FM Shortwave oddity
Bonus The Best SDR QRP Transceiver Available?
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Metatron
New Member
Meserias
www.activenews.ro
Posts: 98
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Post by Metatron on Jul 31, 2022 5:54:40 GMT 2
FM DX with the help of a drone ...
FM DX Drone - test 1
FM DX Drone - test 2
FM DX Drone - test 3
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Post by Oscar Bravo on Jul 31, 2022 9:00:10 GMT 2
From CHINA
UPDATE
An improvement of PE5PVB's TEF6686 firmware based on ESP32
v1.20 We are excited to announce the release of version 1.20 of the ESP32 FM Tuner!
- Fixed the rotary button so it doesn't activate twice - New theme engine - Added a second menu (hold blue button to activate) - Added battery voltage/percentage info - Readded XDR-GTK support for chinese tuners - Added XDR-GTK support over wifi - New dBf/dBuV switch - Changed the bandwidth refresh timer - Changed the default FM step to 100 kHz - New switch for RDS info (the user can now choose if the info should disappear on low signal) - Changed the PTY of "Variable" to "Varied" - A new switch for screen shutdown on XDR-GTK
v1.21 We are excited to announce the release of version 1.21 of the ESP32 FM Tuner!
This release includes the following new features and improvements:
Added signal in dBm when the user is connected to Wi-Fi Wi-Fi icon rework (now the Wi-Fi icon will show whether you're connected to a network / XDR-GTK separately) Battery status updates without reboot, if you're not using Wi-Fi Signal should jump way less when a neighbour frequency is too strong XDR-GTK graph is now way smoother (similar to XDR F1HD) A TP indicator has been added next to PTY info Battery voltage calculation has been recalibrated (bugs may still occur) A new battery check has been added, which checks if the user has a battery connected or not The RT is now scrolling 2 new themes (Whiteout & Heaven) Fixed various graphical glitches
N.B. For those who are interested in extreme fringe FM DX reception ... I have tested several copies and models of portable radios that have appeared in recent months from China, both stereo and mono variants with ESP32, and they have a slightly worse demodulation threshold than the old established solutions with the already well known spare parts tuner modules based on TEF6686 ( F8602 or F8605 ) controlled by Arduino Nano, STM32 or ESP32. And it's not because of the software, probably the implementation of TEF6686 on board of these new portable devices is to blame, some copies even coming without shielding on the RF side. Cheaper, but not quite like that ...
Also the Pioneer car radios with TEF6686 do better on extremely fringe weak FM signals than these newer portable radios.
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Post by Oscar Bravo on Aug 6, 2022 3:57:51 GMT 2
Aveti de ce râde copios din nou !
A revenit tembe-dx-mul empiric acut !
( Atentie, e tembelism acut "patentat" ! )
Lumea s-a obisnuit deja cu toate tembelismele de pe net ale puzderiei de pseudo-cunoscatori, dobitoci autoerijati in mari experti din analfabeti institutional !
Manifestarea personajelor cu convulsii mintale nu avea cum sa lipseasca nici din peisagul cotidian al radioscamatorilor.
Urangutanul ospicios cu barba sau fara autointitulat "deicser", cu acelasi limbag atehnic agramat si pachet de confuzii infantile fundamentale, bantuie din nou netul, mai furibund, in noi si multiple sarabande mintale scatofago-scaterofage comice de mare anvergura si inversunare .
Escapade de o penibilitate comica de varf si cotor in genul celor deja ramase de pomina ca ... receptiile patologice din Crveni Cot cu reflexii pe tabla satelitilor si a statiei orbitale , decibelul luat de tembel invariabil drept unitate de masura in SI ( in timp ce sarmanul invoca aparate de masura la modul pafaristic, dovedindu-si la tot pasul analfabetismul institutional ), postulatu' dobitocului cum ca "In FM nu exista fading". Sau aberatiile teoretice tembelistice debitate si reluate cu inversunare ciclic despre presupuse mirabolante antene ba rusesti, ba unguresti vs "antenele cu bug-uri" din Spindler sau ineficientele, dupa mintea prostului, antene Korner ( care sunt tot antene cu serie de dipoli rectilinii cu element de alimentare și mai multe elemente parazite, adica tot Yagi-Uda ! ) cu mai multe reflectoare/directoare care chipurile nu dau nimic in plus, doar risipa de materiale ... samd
Retardatul care a dovedit ani de zile la rand ca habar nu are ce este decibelul, o impedanta, cum se calculeaza un circuit si cum se fac niste masuratori elementare in radio, stie el mai bine.
De aceea nu poate fi omisa din enumerarea cretinismelor nici instalatia cea mai performanta pt DX din toate timpurile, dupa mintea tembelului, compusa din singurul si unicul aparat bun la DX, radioul auto Blaupunkt Lubeck, si numai in combinatie cu cea mai "tare" antena pt. FM si anume ... antena de colectiva cu 3 el. de canal 4, "si nu 5 cum crede lumea", de pe vremea lui Ceausescu, dar montata pe dos caci doar asa e performanta.
Plus seria tembela de zeci/sute de dejectii mintale empirice, aberatii tehnice zise "emisiuni", despre "cea mai buna bucla pt FMDX".
Ziua si bucla patologica, cea mai bucla, mai scurta, mai lunga, in functie de cat de acuta e criza pacientului la momentul respectiv.
Sau emisiunea "esplicativa" despre la ce unghi "optim" trebuie inclinat dipolul in sus, special anume pt. a receptiona unghiul din care vine sporadicu' multi hop-hop-hop mintal.
Motiv pt. care boul nici nu pricepe cum dreaku' de functioneaza antenele Korner cu dipolul culcat, pe care le si huleste si care, dupa mintea lui imbecila, ar prinde asa doar undele care vin de sus sau de jos. Ca sa nu mai vorbim de tembelismele acute debitate de dobitoc despre sinfazarea antenelor dar nu identice cum scrie la carte ci diferite si ca model, caracteristica amplitudine/frecventa/impedanta in banda si castig si care se numeste dupa dejectiile lui mintale empirice "simetrizare". Simetria prostiei in lobii creierului de urangutan ... ca nu mai prinde nici macar ce prindea cu antena de colectiva "de canal 4 si nu 5 cum crede lumea" de pe vremea lui Ceausescu, montata si aia pe dos !
Sub nicio forma nu putem omite din lunga lista de elucubratii crase ce tin de noaptea mintii nici asa zisele "emisiuni" cu explicatii empirice naucitoare dar si demo-uri practice live din atelierul mintal info DX Obregia de genul ...
Voila !
Sanatate mintala totala a la Retardosh
Si lumea rade ... si rade ... si rade ... caci nu se poate abtine cand vede atata cretinism acut la un loc pe banda rulanta
O zicere din popor ne spune ca " prostul daca nu-i si fudul nu e prost destul ".
Si ca sa o intareasca si sa avem de ce rade si mai vartos retardatul se lauda singur cu toptanul patologic de elucubratii, aberatii, nerozii, infantilisme si dejectii mintale din urma ...
Caci la Obregia Info DX dejectiile mintale sunt chiar si arhivate
Asa tembel mai rar intalnesti, sa-si dea singur cu tesla, repostandu-si toate tembelismele din urma
Evident ca nu-si da seama ce face, prostia fiind o "virtute" in mintea sarmanului.
Asa ca amuzati-va copios ca aveti de ce din plin.
QED
Elucubratiile empirice ale prostalaului au revenit asadar in forta mai ceva ca scaunele meteorice.
Noi aberatii teoretice crase, enormitati, intr-o frenezie si verva debordante, demne doar de un pacient veritabil ot Obregia, asa cum reiese din noile video selfie-uri exhibitionist-patologice de mare fecalitate, veritabile mostre de analfabetism institutional si tembelism epice.
Toate insotite de un rictus muistic patetic hilar al pacientului si obligatoriu de mahoarca fumeganda aspirata la modul tamp arogant pe calea orala, sinecdoca pestilentialitatii totale.
Asa am mai aflat de la pacientu' DX, cu mult amuzament, ca NXP, adica cei care au proiectat si pus in opera circuitul TEF6686, habar nu au avut ca de fapt acesta nu are IF nefiind un "Low IF Tuner" ! Si nici macar un Software-Defined Radio (SDR) ! Ah, ce mare dobitoc !
Stie el, tembelu' Retardosh, mult mai bine decat producatorul, si asta inca de acum peste un deceniu in urma, asa cum se lauda, ce este si ce face circuitul lor. El, boul care se milogea prin septembrie 2020 sub nick-ul Pushkin pe un forum sa fie ajutat ca habar nu avea cum sa faca si el TEF-ul sa mearga cu un biet Arduino.
Cei de la NXP sunt doar niste mici ageamii pe langa "expertul" dela info Obregia DX, nu ?
Cum sa inteleaga toate astea prostu' ? Si de unde sa stie papagalul si despre limitarile tip "capastru" din toate sketch-urile publice despre care au habar doar cativa de-i numeri pe degetele dela o mana si care au avut acces, citit si inteles documentatia completa la zi a familiei TEF668X ( nepublicata pe net ) ... cand boul se uita la cod ca curca-n lemne dar se erijeaza, culmea, chiar si in mare programator de rad curcile din toate ograzile. Boul care confunda decibelul cu o unitate de masura in SI fara sa priceapa logaritmarea se da acum si mare programagiu.
Cum nu ar fi suficient, in tembelismul lui absolut, se lauda de ani de zile si continua, cu inversunare, cum baga el, si tot baga, si tot baga, total aiurea, inaintea intrarii din receptoare, felurite amplificatoare "minune" cu zeci de decibeli castig dar si zgomot mai mare decat cel al etajelor de intrare din respectivele receptoare.
Care mai de care mai "performant", la care a stabilit el, boul pafarist, si care dintre ele are schema "corecta" si din care ... "nu lipsesc piese" si perla cum ca cele care au alimentator mai sus de 5 volti ... sunt mai proaste !
Zeci de decibeli in plus total aiurea, cu tot cu intermodulatii si zgomot in draci ...
Testarea ati vazut cum se face, prin scurturi pe cablaj cu surubelnita pana ies scantei.
Noaptea mintii a la info DX Obregia, patentata la ... OSIM.
Elucubratiile patologice fara numar sunt uneori zamislite in cardasie, in parteneriat, cu alti pacienti asisderea.
Acrobati mintal tot cu sclipiri obregiste, cu creierul direct @ tensiuni anodice, autoerijati in mari "digei" ai unor radiouri pirat "care te face sa tzipi !"
Ciumeti pe post de "experti" ca si rapandula care profereaza amenintari cu moartea catre politicieni, realizatori tv s.a.m.d, un personaj pestilential si la propriu care face intr-o clipa loc viran in jur cand isi urca hoitul in transportul in comun, personaj din castingul productiei parafrazate ad-hoc ... "Furios si pute".
Personaj fugit din vechea revista Urzica, camarad vechi de grup de suferinta DX obregista "patentata" chiar si la ... OSIM.
Din pacate ( sau din fericire pt. amatorii de umor gratuit) mediul virtual, fiind unul propice exprimarii largi, neingradite, a tembelismului, a imposturii, a pseudo-cunoasterii, abunda in popularea cu astfel de ipochimene caricaturale pestilentiale imbecile.
Si la cati ciumeti tembeli, analfabeti institutional, misuna prin lumea asta se gasesc si cativa prozeliti, sustinatori ai prestatiilor ospicioase, indivizi asisderea, specimene incapabile sa realizeze cat de prosti si penibili sunt.
In timp ce cei cu mansarda functionala si cu un pic de carte, pe care au si inteles-o, se amuza copios pe seama lor.
Si lumea rade ... si rade ... si rade ... caci nu duce deloc lipsa de noi si noi "emisiuni" patologice ot info DX Obregia .
Bonus
Talanga-Balanga v.1 Antena oficiala a grupului oficial Info DX FM Obregia patentat chiar si la OSIM
Multi tembeli cred ca daca sparg unul, doua sau trei oua intr-o tigaie si fac ceva ce seamana cu omleta au devenit mari bucatari peste noapte. Pentru acest gen de indivizi care au ridicat incultura la rang de virtute, lipsiti de cunostintele elementare de baza in domeniul abordat, dar foarte galagiosi, tupeisti, chiar insolenti,
ceea ce scriu li se pare un monolog, nefiind capabili sa si inteleaga retetele, talcul lor, sa vada miezul problemei. E ca si cum, de exemplu, cineva explica ce este laptele matern unor ... sugari. Pentru ei ori matern ori patern e totuna ! Ba chiar le si place gustul celui din urma
Gaudeamus ... STUPIDITAS !
***
Update
It was no wonder even if the idiot would said in his madness he caught a TROPO from China or Japan according to his mental "tropopause multi duct" illness
Stupidity has no cure ...
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Post by Admin on Oct 7, 2022 23:54:48 GMT 2
How to properly use a NanoVNA V2 Vector Network Analyzer & Smith Chart (Tutorial)
How to Use a Vector Network Analyzer (VNA) to Test Antennas
How to tell if you have a bad NanoVNA
Which NanoVNA Should I buy?
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Post by Oscar Bravo on Nov 9, 2022 8:23:33 GMT 2
Satcom on Android smartphone + RTL SDR receiver 📻📱
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Post by Oscar Bravo on Dec 24, 2022 8:46:02 GMT 2
SDR++ Multi-Platform SERVER
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Post by Oscar Bravo on Feb 3, 2023 20:32:13 GMT 2
NXP-GTK v.1.2-Git mod - optiuni -
( inclusiv corecte pe filtre -> 4 AM & 16 FM )
( Antena este tot dipolul de FM si pe AM )
***
FM DX Band Scan Vertical in Bucuresti azimut Shumen
Bonus
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Post by Oscar Bravo on Feb 14, 2023 12:26:58 GMT 2
TEF6687/6689 FMSI (Stereo improvement) demo
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Post by Oscar Bravo on Apr 3, 2023 4:48:18 GMT 2
By request ...
FM DX ONKYO T 4670 (mod) vs TEF6686 ( Arduino Nano )
( same antenna & splitter checked for attenuation symmetry on both outputs )
I did this test using the MPX output of TEF6686 (and of course the correct external hardware processing including the 50uS) thus bypassing the internal digital audio processing and implicitly those annoying effects of fierce softmute on weak signals. Unfortunately, under 1 uV, the performance of TEF668X on fringe extreme FM DX signals decreases dramatically ! It would have been too much, a dream, the ideal circuit for extreme DX enthusiasts. That's it.QED
Bonus
FM DX ONKYO T 4670 (mod) vs TEF6686 ( Arduino Nano ) ( same antenna & splitter checked for attenuation symmetry on both outputs but this time with an external Super Low Noise UKW/FM Preamplifier with Noise Figure 0,30 dB )
Important note: Overall gain is no more than 3 db, Super Low Noise UKW/FM Preamplifier is not used in this case to improve the gain but the signal-to-noise ratio !
NB. Am efectuat a n-a oara aceasta comparatie deoarece inca primesc intrebari de la nou veniti legate de utilizarea in continuare a batranului meu Onkyo T-4670 modificat desi posed o paleta chiar larga de TEF-uri ( si solutii, controlere asociate, bla bla bla ) fiind cel care l-a si semnalat si recomandat ca fiind solutia "saracului" pasionatilor naivi din Romania de la acea vreme care aruncau cu banii in draci pe aparate second hand iesite din productie dar ofertate la preturi piperate, exagerate, speculate, ca celebrul " Sony XDR-F1HD and its sister radios, the XDR-S10HDiP and XDR-S3HD " printre primele din generatia de HD Radios care debuta prin 2008. ( Super LNA-ul extern este controlat in test de tensiunea AGC oferita de TEF prin GPIO )
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Post by Oscar Bravo on Apr 12, 2023 5:30:00 GMT 2
SSB on a TEF668X based radio ( old trick )
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Post by Oscar Bravo on Apr 23, 2023 16:03:13 GMT 2
The TEF6686 DSP radio chip is a popular FM DX remote tool used by many players and controlled by an STM32F103C8T6, and a DIY open-structured TEF6686 radio can be made using a PCB as a panel to minimize the volume, with all components and wiring using LCSC EDA for a more mini digital radio that still has a strong TEF6686 reception effect, making the radio fit in your pocket!
On the basis of this radio, you can also try to make a smaller volume machine. Based on the NXP TEF6686 chip, the volume is reduced by more than 1/3 after the redesign, but the performance is not reduced and the receiving sensitivity is still strong. The appearance first uses an open design and later adds a PCB shell, with a battery capacity of 1300mAh (the maximum space inside the machine can accommodate a 1500mAh volume of battery cells), an LCD screen still at 1602, and an STM32F103C8T6.
The radio screen will not be too demanding, except to do experiments rarely use higher resolution dot matrix LCD, LED screen or color screen, after all, the radio is for listening rather than watching, do not need too much graphical interface. Standby display field strength, frequency and other key indicators are enough.
The new version of the mini TEF6686 DSP radio is really small and exquisite, and it is super stylish when receiving medium wave with U disk version or simple version of medium wave magnetic bar antenna. Of course, the adaptation antenna of the FM broadcast segment is also DIY.
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Post by Oscar Bravo on May 24, 2023 2:17:03 GMT 2
Fix RT in RDS 2B groups
Commits on Sep 14, 2023
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Post by Oscar Bravo on Jul 12, 2023 7:22:25 GMT 2
Scanning SATCOM Channels with a new Quansheng UV K5(8)
How To Build A MILSAT SATCOM Turnstile Antenna
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Post by Oscar Bravo on Jul 29, 2023 14:32:26 GMT 2
Comparison of the reception quality of seven receivers on the same frequency
Bonus
FM DX Test TEF6686 vs AirSpy HF+ on a weak fringe signal
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Post by Oscar Bravo on Aug 1, 2023 10:14:47 GMT 2
TEF6686 5.1 LNA vs PEAQ PDR-050 vs Technisat Techniradio 3 vs Silvercrest SWDR 500 C1 + Analog Tuner
ONKYO T4670 (mod) vs TEF6686 (minimal)
FM DX MR1 Kossuth Rádió 100,4 MHz Szentes daily in Bucharest
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Post by Admin on Aug 11, 2023 3:50:13 GMT 2
SDR++ Server | Remote RTL-SDR SDRPlay LimeSDR AirSpy and More! | Raspberry Pi and Windows Setup Tut
Bonus
Surecom SW33 Plus Handheld SWR & Power Meter Review
Surecom SW-33 SWR Meter VS The SW-102 Power & SWR Meter - Which Surecom Is The Better SWR Meter?
Xtra Bonus just for fun ...
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Post by Oscar Bravo on Sept 20, 2023 6:33:18 GMT 2
RTL SDR V4 - Now with Built-In HF Upconverter + More Features
RTL SDR V4 update and comments on the new device
Ham Filter Bank - 5 Ham Radio Pass Band Filter Board For SDR
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Post by Oscar Bravo on Sept 26, 2023 7:48:33 GMT 2
Exploring the Nooelec 21dBi Satellite Mesh Antenna
LoRa - Long-Range Radio for IoT | Arduino, ESP32, RPI Pico
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