10244,368,952,360,952,364,944,976,348,372,948,968,352,368,940,976,352,364,948,964,364,356,952,364,960,360,948,368,952,364,944,972,352,368,952,356,956,368,940,976,352,364,944,972,352,368,944,972,348, [/code] Nun habe ich den Sender an den Arduino angeschlossen und wollte mit dem Sketch 'SendDemo
mal früher Bilder gezeigt, das sah man im Link nicht so http://ecx.images-amazon.com/images/I/71BfRBGPUaL._SL1500_.jpg wäre äusserlich ähnlich ich hatte diese gekauft http://www.ebay.de/itm/360965200384
schlechter mit der Drop-Spannung. Der SFet-Strom beträgt in der Simulation ca. 4mA. Also (24/0.1)*4mA=960mA Die >35mA Abweichung gibt's gratis dazu... Habe auch mal den BCV62 und BCV61 in LT-Spice gebracht, vielleicht kann das jemand gebrauchen.
einen Source-Widerstand verpassen. Sieht man auch an der Kennlinie (Uds zu Id) im Datenblatt des BF245. Der Knick ist bei kleineren Strömen nicht so ausgeprägt. Ohne Widerstand fließen ca. 4mA und die Abweichung beträgt 17% bei 10V Spannungsänderung. Mit 1k bin ich in der Simulation bei ca.
ein Verständnisproblem, bzw. eine Unwissenheit, was die Bildformate betrifft.. Nun hab ich 1280x 960 und das sieh ganz gut aus, kleiner hätt ich es allerdings auch nicht gern ;-) ich hatte nur übersehen, dass der Monitor ja eni 4:3 Format besitzt, die Auflösung wie 1280x 768 oder 1280x720 sind aber
Vorauswahl nennen (damit ich mir nicht jedes TFT angucken muß)? Bekannte empfahlen mir das Samsung BF930 oder eins von Benq (hab die Bezeichnung nicht im Kopf). Einsatzzweck ist "multipurpose", also einerseits Schreibmaschine und Programmierwerkzeug, andererseits Videoschnitt. Vielen Dank im Vorraus
immer dünner. PNP HF Transistoren gibt es nur noch vereinzelt und populäre JFET wie ein J310 oder BF245 nur noch als Vogelfutter in SMD oder zu Mondpreisen.
Lefty. > PNP HF Transistoren gibt es nur noch vereinzelt und populäre JFET wie > ein J310 oder BF245 nur noch als Vogelfutter in SMD oder zu Mondpreisen. Das ist wohl ein bisschen übertrieben. Bei PNP (HF-)Transistoren gab es immer deutlich weniger Typen als NPN. Aber z.B. BF324, BF681 oder
ist und es nur selten zu Sampling-Errors kommt. Unter Windows ist ein alter Pentium mit 2.66GHz und 960kBps absolut überfordert. Ein Dual-Core mit 3GHz schafft das aber unter Windows problemlos. @Helmut Hast Du auch den Störer bei 8450kHz und hast du schon den IP3 bestimmt? Du schreibst, dass die
Hallo Günther, prima Tipp danke... habe das hiqscope gerade ausprobiert, toll das bei 960kHz Bandbreite also nicht Schluß ist und das ganze Spektrum sichtbar wird. Jetzt weis ich auch warum ich hier zwei HiQSDR's habe. Kann man die IP im Programm ändern? Beim FPGA ist es ja schnell gefunden
PS - bei der Schaltung im Anhang hat es nach einer Weile den BF199 zersäbelt. Entweder es war ein Produktionsfehler oder die Emitterspule hat induktive Spitzen erzeugt, die der T nicht lange vertragen hat???
durchschalten, damit über dem Poti nur die Sättigungsspannung abfällt. > ob für Q1 ein FET wie der BF245 besser geeignet wäre Der BF245 ist selbstleitend. Er sperrt je nach Typ (ABC) erst bei <-5 Volt. IMO wäre ein kleiner MOS-Fet wie der BSS123, BSS138 oder 2N7000 bzw. 2N7002 besser geeignet.
scroll cannot be performed. Read Busy Flag and Address Read busy flag and address reads the busy flag (BF) indicating that the system is now internally operating on a previously received instruction. If BF is 1, the internal operation is in progress. The next instruction will not be accepted until BF is
HMC434 it must be between 503...879 MHz. So: 1. if I want to measure signals with frequency=925...960 MHz (=signals from BTS->Mobile at 900MHz-band), 1st-LO-frequency after HMC434 must be between 619 and 624 MHz. In my case this is not true, I don't observe increase in levels of this spectrum piece.
Analyzer YBT250, with frequency range 30...2500 MHz. I also found, that 1st-LO is made by 3xVCOs: 1xBF420, 1xBF520, 1xBF520, and each one is responsible for a spectrum piece of about 1000 MHZ (VCO-1=4000...5000, VCO-2=5000...6000, VCO-3=6000...7000 MHz). Each VCO is switched-on by applying Vcc to respective
schwarz zufrieden wäre, da als Impedanzwandler nicht einen einfachen Emitterfolger nutzen.(z.B. mit BF199: max. 100mA / 400MHz Transitfrequenz) Statt eines ICs wäre das dann nur ein Transistor und ein paar Widerstände. Gruß, DetlevT
hat vier Partitionen: 1. FAT16 06 960MB 2. CP/M 52 8MB aktiv 3. CP/M 52 8MB 4. CP/M 52 8MB Gruß Egmont
Write operation (MPU writes data into DR) H H Data Read operation (MPU reads data from DR) Busy Flag (BF) BF = “High”, indicates that the internal operation is being processed. So during this time the next instruction cannot be accepted. BF can be read through DB7 port when RS = “Low”and R/W = “High”(Read
Write operation (MPU writes data into DR) H H Data Read operation (MPU reads data from DR) Busy Flag (BF) BF = “High”, indicates that the internal operation is being processed. So during this time the next instruction cannot be accepted. BF can be read through DB7 port when RS = “Low”and R/W = “High”(Read
Write operation (MPU writes data into DR) H H Data Read operation (MPU reads data from DR) Busy Flag (BF) BF = “High”, indicates that the internal operation is being processed. So during this time the next instruction cannot be accepted. BF can be read through DB7 port when RS = “Low”and R/W = “High”(Read
Write operation (MPU writes data into DR) H H Data Read operation (MPU reads data from DR) Busy Flag (BF) BF = “High”, indicates that the internal operation is being processed. So during this time the next instruction cannot be accepted. BF can be read through DB7 port when RS = “Low”and R/W = “High”(Read
Write operation (MPU writes data into DR) H H Data Read operation (MPU reads data from DR) Busy Flag (BF) BF = “High”, indicates that the internal operation is being processed. So during this time the next instruction cannot be accepted. BF can be read through DB7 port when RS = “Low”and R/W = “High”(Read
Write operation (MPU writes data into DR) H H Data Read operation (MPU reads data from DR) Busy Flag (BF) BF = “High”, indicates that the internal operation is being processed. So during this time the next instruction cannot be accepted. BF can be read through DB7 port when RS = “Low”and R/W = “High”(Read
Write operation (MPU writes data into DR) H H Data Read operation (MPU reads data from DR) Busy Flag (BF) BF = “High”, indicates that the internal operation is being processed. So during this time the next instruction cannot be accepted. BF can be read through DB7 port when RS = “Low”and R/W = “High”(Read
Write operation (MPU writes data into DR) H H Data Read operation (MPU reads data from DR) Busy Flag (BF) BF = “High”, indicates that the internal operation is being processed. So during this time the next instruction cannot be accepted. BF can be read through DB7 port when RS = “Low”and R/W = “High”(Read
Write operation (MPU writes data into DR) H H Data Read operation (MPU reads data from DR) Busy Flag (BF) BF = “High”, indicates that the internal operation is being processed. So during this time the next instruction cannot be accepted. BF can be read through DB7 port when RS = “Low”and R/W = “High”(Read
Write operation (MPU writes data into DR) H H Data Read operation (MPU reads data from DR) Busy Flag (BF) BF = “High”, indicates that the internal operation is being processed. So during this time the next instruction cannot be accepted. BF can be read through DB7 port when RS = “Low”and R/W = “High”(Read
Write operation (MPU writes data into DR) H H Data Read operation (MPU reads data from DR) Busy Flag (BF) BF = “High”, indicates that the internal operation is being processed. So during this time the next instruction cannot be accepted. BF can be read through DB7 port when RS = “Low”and R/W = “High”(Read
Write operation (MPU writes data into DR) H H Data Read operation (MPU reads data from DR) Busy Flag (BF) BF = “High”, indicates that the internal operation is being processed. So during this time the next instruction cannot be accepted. BF can be read through DB7 port when RS = “Low”and R/W = “High”(Read
Write operation (MPU writes data into DR) H H Data Read operation (MPU reads data from DR) Busy Flag (BF) BF = “High”, indicates that the internal operation is being processed. So during this time the next instruction cannot be accepted. BF can be read through DB7 port when RS = “Low”and R/W = “High”(Read
Write operation (MPU writes data into DR) H H Data Read operation (MPU reads data from DR) Busy Flag (BF) BF = “High”, indicates that the internal operation is being processed. So during this time the next instruction cannot be accepted. BF can be read through DB7 port when RS = “Low”and R/W = “High”(Read
Write operation (MPU writes data into DR) H H Data Read operation (MPU reads data from DR) Busy Flag (BF) BF = “High”, indicates that the internal operation is being processed. So during this time the next instruction cannot be accepted. BF can be read through DB7 port when RS = “Low”and R/W = “High”(Read
Write operation (MPU writes data into DR) H H Data Read operation (MPU reads data from DR) Busy Flag (BF) BF = “High”, indicates that the internal operation is being processed. So during this time the next instruction cannot be accepted. BF can be read through DB7 port when RS = “Low”and R/W = “High”(Read
Write operation (MPU writes data into DR) H H Data Read operation (MPU reads data from DR) Busy Flag (BF) BF = “High”, indicates that the internal operation is being processed. So during this time the next instruction cannot be accepted. BF can be read through DB7 port when RS = “Low”and R/W = “High”(Read
Write operation (MPU writes data into DR) H H Data Read operation (MPU reads data from DR) Busy Flag (BF) BF = “High”, indicates that the internal operation is being processed. So during this time the next instruction cannot be accepted. BF can be read through DB7 port when RS = “Low”and R/W = “High”(Read
Write operation (MPU writes data into DR) H H Data Read operation (MPU reads data from DR) Busy Flag (BF) BF = “High”, indicates that the internal operation is being processed. So during this time the next instruction cannot be accepted. BF can be read through DB7 port when RS = “Low”and R/W = “High”(Read
Write operation (MPU writes data into DR) H H Data Read operation (MPU reads data from DR) Busy Flag (BF) BF = “High”, indicates that the internal operation is being processed. So during this time the next instruction cannot be accepted. BF can be read through DB7 port when RS = “Low”and R/W = “High”(Read
Write operation (MPU writes data into DR) H H Data Read operation (MPU reads data from DR) Busy Flag (BF) BF = “High”, indicates that the internal operation is being processed. So during this time the next instruction cannot be accepted. BF can be read through DB7 port when RS = “Low”and R/W = “High”(Read
TF 0 00H − top fixed area 6.2.24 r 1 SA 7 SA 6 SA5 SA4 SA3 SA2 SA1 SA 0 82H − scroll area 6.2.24 1 BF 7 BF6 BF5 BF4 BF3 BF2 BF1 BF 0 00H − bottom fixed area 6.2.24 9 0 0 0 1 1 0 1 0 0 34H tearing line off (TEOFF) 6.2.25 0 0 0 1 1 0 1 0 1 35H tearing line on (TEON) 6.2.26 1 X X X X X X X X 00H − 6.2.26
einem Gewicht von rund 1.700g kein "echtes" Handfunkgerät. Gerade geguckt: die UFT420 wog "nur" 960 g, ist ja schon fast handlich dagegen. ;-) Der Stahl im Bandmaß wird kräftig legiert sein, das macht ihn schwer lötbar.
feinjustieren. Mit C1 kann die Empfangsfrequenz optimiert werden. Der Einsatz eines Dual-Gate-Fet BF981 lässt das Einstellen der erforderlichen Verstärkung mit R1 zu. Mit dem Gewindeferritkern von L1 kann die Ausgangsimpedanz von 50 Ohm bis 75 Ohm an das jeweilige Empfangsgerät angepasst werden.
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