Difference between pages "User:McnallyCothran576" and "QRP Labs High Performance SDR Receiver"

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(Created page with "On-line Sports Betting However, it's far more troublesome to hit on a parlay than it is on a single wager. If the final adjusted score is a tie, the bet is considered a push....")
 
 
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On-line Sports Betting
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[[file:QRP-Labs_P1956-720px.jpg]]
  
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However, it's far more troublesome to hit on a parlay than it is on a single wager. If the final adjusted score is a tie, the bet is considered a push. The half point at the finish is typically added to remove the chance of a push. This is the commonest kind of bet in American sports betting. Underdogs are given a “plus” designation, similar to +150, +200 or +500.
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== Features ==
  
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Football wagers betting limits rise each week as the NFL season progresses. SportsBetting.ag does provide a somewhat high $5,000 on sides for opening traces. It shares the same employees, sports activities odds, and bonus options as BetOnline.
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* Three modules
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** [http://qrp-labs.com/receiver QRP Labs High Performance Receiver Module]
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*** Direct Conversion Receiver
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*** Uses a Quadrature Sampling Detector (QSD), also known as a Tayloe Detector
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*** [https://www.onsemi.com/pdf/datasheet/fst3253-d.pdf FST3253] Mixer is arranged as a double-balanced mixer for maximum performance
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*** Circuit to mute receiver during transmit
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*** [https://www.ti.com/lit/ds/symlink/lm4562.pdf Low noise LM4562 op-amps] are used in instrumentation amplifier configuration to provide excellent common mode noise rejection
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*** The audio output of the module is isolated using two 600:600-ohm transformers to reduce or eliminate the ground loop problems which can easily occur in SDR systems
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*** The module is designed to directly drive a stereo input sound-card or with a polyphase filter card
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*** Receiver board has a socket for the standard QRP Labs Band Pass Filter kit which can be routed to an external bandpass filter switch card
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*** The receiver requires a local oscillator (LO) input at 4x the receive frequency
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*** [http://qrp-labs.com/images/receiver/receiver2.pdf Receiver Build instructions]
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** [[RF Band Pass Filters|QRP Labs Band Pass Filter]]
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*** Can be used with a [https://qrp-labs.com/ultimatelpf.html Switched Bandpass filter board] for multiband operation
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*** [http://qrp-labs.com/bpfkit.html 10/15/20/40/80M QRP Labs Band Pass Filter Kits]
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*** [https://qrp-labs.com/images/bpfkit/bpf2.pdf Band Pass Filter Build instructions]
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** [https://qrp-labs.com/polyphase QRP Labs Polyphase filter]
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*** Polyphase network plug-in module kit cancels the unwanted sideband and produces a single sideband (SSB) output
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*** [http://qrp-labs.com/images/polyphase/polyphase2a.pdf Polyphase Filter Build instructions]
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* Band Pass Filter and Polyphase filter mount on Receiver Module
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* Current draw - measured total 70 mA (5V regulator
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* The receiver module is sized 80 x 37mm
  
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As sports activities betting becomes authorized in increasingly more areas, we are there and keeping tabs on the latest developments. NJ sports betting and Pennsylvania had been two of the first states to launch with Michigan sports betting and online betting in Virginia going reside in the beginning of 2021. The finest NFL sportsbooks on-line for this year are MyBookie, BetUS, and BetOnline.
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=== Build / Assembly ===
  
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Arkansas’ entry into the sports betting world got here as a bit of a surprise for most people. After all, the Natural State enjoys a similar popularity for playing hostility as most of its neighboring states. However, the final 20 years in Arkansas have seen the state endure a dramatic transformation and expansion, so the debut of sports activities betting isn’t as uncommon because it appears. Wyoming launched its online-only market in September 2021, just five months after the law was signed by Gov. Mark Gordon.
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* Power supply + 12V in
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** Distribute 12V using [[TinyGrid85]] card with caps
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** Needs 5V supply
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*** Partly populated [[TinyGrid85]] card with caps and 5V regulator (no ATTiny85 chip)
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** Opamps can be powered from 5V or 12-14V (for higher dynamic range)
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* [[AudioAmp386|Audio Amplifier]]
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* The receiver requires a local oscillator (LO) input at 4x the receive frequency
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** Using [[VFO-003]] with [https://github.com/land-boards/lb-Arduino-Code/tree/master/LBCards/VFO-003_4X 4x output software option]
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** [https://github.com/etherkit/Si5351Arduino/tree/master/src Si5351 Driver]
  
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This means that you can be find higher odds on-line or in-person relying on the game you're trying to bet. The one main perk that betting on the NFL online holds, though, is you could verify several NFL on-line sportsbooks in a matter of seconds. In individual, you're caught with what's available on the NFL sportsbook you go to until you are feeling like driving elsewhere.
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== Silkscreen / Pinout ==
  
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A exhausting copy printed out tickets are good for 365 days after the occasion. There can be a mailing handle on the again of your ticket for those excited about sending it to the resort for payment. Check out our web site day by day for thelatest oddsand info for all the massive video games. Also, check out our Las Vegas reviews on the top resorts — like the Cosmopolitan — and sportsbooks — just like the Westgate SuperBook. Double-check precisely what you are betting before you verify the wager. If you're a fan of casino games, prepare for aninvasionof slot machines.
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[[file:IQ_RX_PCB.PNG]]
  
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Bonus OfferHow It WorksPros / ConsNo depositTypically a small free guess of $10 or so just for signing up. Risk free betPlace your first guess in risk-free trend, sometimes for as much as $500. Deposit matchA match of your preliminary deposit as much as a sure greenback amount.
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=== Pins ===
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* IQ pins
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* I, GND, Q outputs
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* Power pins
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* GND, +5V, +5V or +12V to +14V
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* Tx Mute Input
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** 5V mutes inputs
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* LO input
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** 3.3V from Si5351A oscillators
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* IF input
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** From external Bandpass Filter Switch
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== Receiver Module ==
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[[file:QRP-Labs_Receiver-Base_P1969-720px.jpg]]
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== Polyphase Module ==
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*  Important to observe part outlines
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** Adjacent resistors can be put in "sideways"
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 +
[[file:QRP-Labs_Polyphase-Filter_P1966-500px.jpg]] [[file:Polyphase-pcb.PNG]]
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[[file:Polyphase-pcb-2.png]]
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[[file:Polyphase-Schematic.PNG]]
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* USB/LSB select jumpers
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** Set to USB in the above picture
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[[file:Polyphase_LSB-USB-Jumpers.PNG]]
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== Bandpass Module ==
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* 20M - 14 MHz Filter
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[[file:QRP-Labs_BandPass-Filter_P1963-720px.jpg]]
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[[file:Bandpass_Filter_Schematic.PNG]]
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* NanoVNA
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** 12-16 MHz
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[[FILE:14MHz_12-16MHz_Band_Pass_Filter-2.png]]
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* Data
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[[FILE:14MHz_12-16MHz_Band_Pass_Filter-Data.png]]
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[[FILE:  14MHz_12-16MHz_Band_Pass_Filter-Analysis.png]]
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== Build Issues ==
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* Transformers don't fit well and crowd parts around them
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* QRP Labs polyphase module pics are for older revision card
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* One of the two variable caps on the Bandpass filter was very hard to turn even after the first turn
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== Reference Documents ==
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* [https://wparc.us/presentations/SDR-2-19-2013/Tayloe_mixer_x3a.pdf Ultra Low Noise, High Performance, Zero IF Quadrature Product Detector and Preamplifier]
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* [http://antennoloog.nl/data/documents/Understanding_and_designing_Polyphase_networks_V4.0.pdf Understanding and Designing Sequence Asymmetric Polyphase Networks]
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* [https://www.robkalmeijer.nl/techniek/electronica/radiotechniek/hambladen/qst/1991/12/page29/ The double-tuned Circuit: An experimenter's tutorial]
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* [http://hanssummers.com/polyphase 40/80m CW/SSB receiver]
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* [http://hanssummers.com/images/stories/polyphase/polyphase.pdf Experimental Polyphase Receiver]
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* [http://www.arrl.org/files/file/Technology/tis/info/pdf/030304qex020.pdf A Software Defined Radio for the Masses]
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* [http://norcalqrp.org/files/AustinNC2030Presentation.pdf Very High Performance Image Rejecting Direct Conversion Receivers] - NC2030 Radio

Revision as of 00:02, 22 November 2021

QRP-Labs P1956-720px.jpg

Features

Build / Assembly

Silkscreen / Pinout

IQ RX PCB.PNG

Pins

  • IQ pins
  • I, GND, Q outputs
  • Power pins
  • GND, +5V, +5V or +12V to +14V
  • Tx Mute Input
    • 5V mutes inputs
  • LO input
    • 3.3V from Si5351A oscillators
  • IF input
    • From external Bandpass Filter Switch

Receiver Module

QRP-Labs Receiver-Base P1969-720px.jpg

Polyphase Module

  • Important to observe part outlines
    • Adjacent resistors can be put in "sideways"

QRP-Labs Polyphase-Filter P1966-500px.jpg Polyphase-pcb.PNG

Polyphase-pcb-2.png

Polyphase-Schematic.PNG

  • USB/LSB select jumpers
    • Set to USB in the above picture

Polyphase LSB-USB-Jumpers.PNG

Bandpass Module

  • 20M - 14 MHz Filter

QRP-Labs BandPass-Filter P1963-720px.jpg

Bandpass Filter Schematic.PNG

  • NanoVNA
    • 12-16 MHz

14MHz 12-16MHz Band Pass Filter-2.png

  • Data

14MHz 12-16MHz Band Pass Filter-Data.png

14MHz 12-16MHz Band Pass Filter-Analysis.png

Build Issues

  • Transformers don't fit well and crowd parts around them
  • QRP Labs polyphase module pics are for older revision card
  • One of the two variable caps on the Bandpass filter was very hard to turn even after the first turn

Reference Documents

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