The pulse counting fm receiver for android

The pulse counting fm receiver is a superhet receiver, but differs from conventional fm receivers in two ways. Unable to connect to wireless dvr from kittyhok android smartphone app. Am fm radio free am fm radio tuner for free for android. Unlock the secret fm tuner in your android phone cnet. I also ended up wikiing the softwaredefined radio deal. Note in the quiet passages the visible phase jitter caused by the. Fm signal detection the pulsecounting way hackaday. Antique radio forums view topic pulse counting fm detector. The en1501 includes a field replaceable battery, with a typical life expectancy of six years. Pulse fm south bend, in listen to free internet radio, sports, music, news, talk and podcasts. Wake up with the new pulse fm using the customized alarm, enter contests, interact with us on social media and get the latest pulse fm news. Text, email or call the studio at a touch of a button. Great prices and discounts on the best heart rate monitors. Android broadcast receivers broadcast receivers simply respond to broadcast messages from other applications or from the system itself.

This video describes how a pulse counting fm discriminator works it is a unique fm demodulator that doesnt require and tuned circuits like the fm ratio detector or. Rtr505p wireless pulse data logger with external adapter. Download the free pulse app today and keep up to date with the band. At one point i threw the result together on a solderless breadboard and tested it with the signal generator it worked well, but was far from a complete wbfm receiver. Pulsecounting fm broadcast receiver alan yates laboratory. The concept wasnt new theres a 1947 qst that shows a simple fm receiver using tubes, mixing the signal down to about 200khz, to an rccoupled if amplifier and a simple pulse counting detector, but it handle seen much use in ham circles. Download the free app for your smartphone or tablet.

Feb 28, 20 single vacuum tube radio with circuit diagam operates on a 12v to 25v htlt supply duration. Are you tired of downloading and managing your favorite songs on your. Not sure if a working model can be made from this article, or for that matter whether any of these tubes still exist. Pulse counting superhet receivers were popular in the uk during the 196070 period and a number of articles were published in magazines, including practical wireless and radio constructor.

This is a description on how i have converted my super regenerative receiver into a powerful pulse counting vhf fm superhet receiver. Our team of experts narrowed down the best singledin car stereos on the market. Pulse counting eliminates the complex and often hard to find demodulation transformers and if coils used in traditional discriminator and ratio detectors. These were ideally suited for home construction as alignment was minimal and no test instruments were necessary. This is my construction of a pulse counting detector fm receiver as described at. This is an all vacuum tube pulse counting fm radio that i built. I combined from the designs as shown on both sites, but i deleted the audio op stage, so it is basically then a tuner program source which can feed my valve based audio amp.

It would be familiar to anyone reading 1960s english electronics magazines. How to use android to receive on certain radio frequency. I still dont understand how the pulse counting works though. It works in the same way as my present 6 valve fm tuner design. Pulse of radio show prep the best morning show radio prep uptodate music and entertainment news, lifestyle stories, celebrity gossip, audio clips, and more. My current plan is to use a fast fourier transform to single out the largest frequency component, but it looks a bit daunting to implement, and the hardware im using is a 16 bit microcontroller with 8k of memory it may not be up to that level of processing. Get the new pulse fm app for ios and android available now. Sports yak check out episodes of sports yak with corey mann and chuck freeby.

The chassis is 3mm aluminium that i had bent at a local engineering metal shop. Denon supports the sound start foundation, an organization dedicated to providing musical instruments to children and schools in need. The receiver on most phones, including the droid 3 and droid bionic dont receive on a higher frequency than 108 mhz. Buy music and read more about your favourite artist. Pulse counting fm receiver uk vintage radio repair and. An app called spirit fm can use your devices existing receiver chips to tune to fm frequencies, but only if your phone is running aosp firmware like cyanogenmod or stock android. Onkyos new receiver is great with both music and movies. If youre lucky enough to have a model with this feature, you can enjoy compressionfree fm radio without using any data. Compared to the simple diode needed to demodulate am radio signals, the detector circuits used for fm are slightly more complicated. Cool 386 webpage there was a commercially made kit, the sinclair micro fm, for sale in the uk during the late 1960s.

Very cool stuff that will hopefully end up coming to our mobile phone technology. Samsung galaxy s class of android smart phones is an example of a cell phone device which includes, but does not make use of, an fm chip that would allow for fm radio reception. We especially encourage canadian artists as we are based in canada and are licensed by socan to broadcast licensed content you hear. This is because instead of a ratio detector or quadrature detector, a pulse counting detector is used. Rather dense theoretical description of this type of fm. Key features tapwatch submetering system compatible compatible with virtually any met. Electromagnetic pulse protection protects tuner from damage due to. Apr 12, 2011 it uses timer2 rather than 1, and counting with a resolution of only 16us which is more than enough as the fm receiver has comparable errors too, and we dont care about 16us when a pulse is between and 2000 it allows me to use the servo library based on timer1 for controling the escs.

I want to try building this pulse counting fm receiver. Wiring diagram of the limiter and diode pulse counting fm demodulator. Pulse fm pen pal program learn how you can write letters to pulse fm and well write you back. The inovonics pulse counting transmitter is used to count the number of pulses generated from a pulse output device, such as a utility meter. It was quite a surprise whilst browsing ebay for radio kits to see this. I have just purchased some 1j18b but i dont know if if i can get then to oscillate at 100mhz. The old sinclair micro fm has been reborn well, almost.

Although a wealth of information about pulse counting is available, this document deals with counting pulses from as many as 12 sources, using a continuous sampling and direct port manipulation vice interrupt driven arduino sketch. Congratulations on the build, i have been considering building a pulse counting fm receiver for a while. The design isnt fully optimised, the if in particular is just benchsweepings, and the. If you just want to know the frequency of a sound with harmonics e. You can also listen to pulse fm 247 right here, using the player below or the fullfeatured web player. It was a pulse counting circuit with untuned rf amp, autodyne converter, and used micro alloy transistors. Designed by black label group, llc 2018 all rights reserved. Months ago when i was working in cronulla i had plenty of time on the daily rail commute to design a pulse integration circuit in lt spice. You can even record a shout out or request directly from the app. I can see thar you built the mixer and oscillator on copper clad board. If you are experiencing problems with this streaming player, try the old player here. Phils music and educational physics projects 37,183 views. My fm superregenerative receiver converted to a solidstate. Feb 17, 2020 listen to the new pulse fm anywhere you go.

Aug 28, 2019 as allan w2aew notes in the video below, pulse counting is a bit of a misnomer. The onkyo tx8390 stereo network receiver is designed for music listeners who also want to amplify their tvs, bluray players, games consoles etc, without setting up a. First, the vhf signal is converted to an if of 200kcs instead of 10. We will accept all submissions by artists wishing to gain airplay.

Graupner r700 fm receiver get the ppm signal robotics. Pulse counting fm receiver page 3 the radioboard forums. Pulse counting works by generating a narrow, fixedwidth square wave pulse at a set point in the received fm. I may try this design using wit russian miniature pentodes in place of the ef91s. The signal in question is not a clean sine wave, but a noisy pulse from a sensor. In one of its simplest forms, a pulse counting receiver uses a mixer oscillator that makes 200 khz steps, hitting the midpoint frequencies between each fm channel. Wireless radio data logger including lcd display, supplied with a pic3150 adapter used to connect the rtr505p to the pulsed output of a meter or sensor. Nov 07, 2019 radio on the move has never been more exciting. This video explains the basics of musical meter and how to find the counting pulse of a song.

This page gives a comprehensive list of what stations are available on what platforms fm, dab, web, etc. You said that when you built the circuit on overboard a lot of time was spent on rf hygiene. A short screen record of the new version of rf analyzer. Alan yates laboratory comments for pulsecounting fm. These messages are sometime called events or intents. Why does my android phone charger cause my poweredoff stereo receiver to make a highpitched chirping sound when plugged into the same powerstrip. When counting pulses from only one or two meters, its best to use the interrupt method. Newest receiver questions electrical engineering stack. With the pulse 2 app you can now listen to your favourite station. Stream live events, live playbyplay nfl, mlb, nba, nhl, college football, ncaa basketball, and premier league matches. This stage must follow the stereo decoder or lm386 mono audio amplifier. Nov, 2010 the if signals of a pulse counting wideband fm receiver.