Serial Communication Interface Motorola 68hc11
Visit our for details on this 3 watt FM stereo transmitter! Visit our for details on this 100 mW FM stereo transmitter! Visit our for details on this 3 watt FM transmitter board! Back to or discuss AM and FM Transmitter schematics in our MORE STUFF COMING SOON, CHECK THIS SPACE OFTEN!
Arithmetic core Design done,Specification doneWishBone Compliant: NoLicense: GPLDescriptionA 32-bit parallel and highly pipelined Cyclic Redundancy Code (CRC.
Pirate Radio kits FM Transmitter schematic hobby broadcast RF Circuit Antenna Surveillance spy Links for FM Transmitter Kits, Circuits, Electronics. Kit Manufacturers and Resellers:: FM PLL Transmitter Kits, Stereo Coders, Prebuilt systems UK based manufacturer of quality FM Transmitter kits and complete Transmitters. INNOVATIVE and RESPONSIVE!! Seem to have the best published specs on the net for the 1W PLL LCD NO-TUNE Exciters. In 1999, they started guaranteeing their kits, following Veronica's lead. They had started publishing Spectral Output of the transmitter at their site and then stopped suddenly??? Now all we need to see is Circuit Diagrams on the net before you buy!!!: FM PLL / VCO Transmitter Kits, Stereo Coders, Prebuilt systems UK based manufacturer of quality FM Transmitter kits and complete Transmitters.
They were the first to guarantee their kits. The 1W PLL kit has a huge circuit board but most reviewers agree on its good quality. Their kits come with Circuit Diagrams:) Now where's the Spectral Analyser plots?: FM PLL / VCO Transmitter Kits, Stereo Coders, Prebuilt systems UK based manufacturer of quality FM Transmitter kits and complete Transmitters. The 1W PLL kit has a huge circuit board but most reviewers agree on its good quality. Their kits come with Circuit Diagrams:) Now where's the Spectral Analyser plots?: Resells kits made by most major UK / US manufacturers US based reseller of various brands of FM Transmitter kits, RF Amplifiers, Antenna and complete Transmitters. Much admired on the net.: Make a PLL kit and some Amplifier kits. Circuit Dias on the Net.
US based activist for free radio. Also sell various kits. Circuit diagrams are at the site. As they are mainly concerned about the right of free use of the air waves, it appears that they often do not have much time to design better kits or ship orders.: American manufacturer of FM Exciters DSchmidt says their PLL Exciter has a very clean Spectral Output. FCC approved!!: FM and AM PLL Transmitter kits for educational use Circuit boards with lot of test points to see waveforms at various stages: Not much on the Web, but has a great catalog and good gear!! Answer their on-line quiz and they post you their catalog. They stock Panaxis and Wavemach transmitters, excellent inline LPF, STL transmitter/receiver and antenna, various readymade RF Amps, signal processors, power supplies.
Interesting wideband 110W RF Amp kit based on BGY133 module and a tunable 110W RF Amp kit based on Motorola's MRF317 transistor.: From Greece. They have 1,4,15 and 25 W VCO Transmitters.
Circuit Dias on the Net. They have posted their circuit dias on the net, for which they do deserve accolades.
Various other kits besides transmitters. Their RF kits are quite simple, but make great starting points to learn electronics.
New Stereo Coder released in July '98. New PLL Transmitter and some RF Amps released mid '99.: They re-sell Smart Kit's Voltage Controlled Oscillator based FM Transmitters. Alternate source to buy Smart Kit: FCC Compliant LPFM Stereo Transmitter for below 60$!! Cheap simple transmitter to get you started. Quite similar to Ramsey stuff.: Complemented for his range of Radio kits, quality of documentation and marketing skills. Wide range of transmitters, some based on the low performing BA1404 Stereo Chip.
His earlier kits started a rash of FAQs.: aka PCS Electronics. Unique 4W PLL TX with LCD, built-in tuning circuitry. Interesting gear with innovative features and at a decent price. Spectral Output at web site in Feb 99. Also available via US distributors.: Cost effective kits from India, Pre-built FM and CB Transmitters Ready-built FM Transceiver, FM Transmitters, CB Transceivers, FM Radio kits. Very cost effective!!: 10mW FM PLL Transmitter for US$ 50!!!!
Also BA1404 based stuff. Simple low power PLL kit with a good write-up on how it works.
Also cost-effective BA1404 stuff: Resells Panaxis' kits, OEM eqpt with Panaxis incorporated, 300W RF Amp kits: Range of 2-3 transistor transmitters, useful for beginners. Lots of other kits. Language Patch Football Manager 2005 Players. : Beginner's 2 transistor designs + BA1404 TX.
Easy way to get hooked on the habit!!!: One and two transistor designs: UK based manufacturer of spy surveillance transmitter kits Readymade Exciter manufacturers + Ham kit manufacturers:: Good Modular readymade system based on 200mW PLL + your choice of RF Amp: They make a PLL FM Exciter and a Stereo Generator: UK based manufacturer of FM Transmitters from 1W to 40W: Great place for 2mtr Transceiver kits. See: Nice Commercial Quality Transceiver kits: Ham Transceivers. Was the best source of DIY Transmitter circuits on the net Captured the spirit of the Dutch Radio Pirates circa 1970-1980 with lots of Philips transi based circuits. His web site disappeared around 2000.
As Pink Floyd would say, Wish you were here.: Somebody just copied Pulsar's site without any credits. Useful if Pulsar's Server goes down.: Another great place for schematics, similar to Pulsar site. Hans is a helpful guy who answers e-mails. HANS PROMISES HE WILL BE BACK AFTER A BREAK OF ABOUT THREE YEARS, 'bout time!!: Yet another nice place for schematics. Looks like Dutch Pirates are the most technical lot!!: Copies of SPI Kit's PLL, Stereo Coder, Limiter: Many circuits, incl. Bugs and small transmitters, useful info especially on winding coils: Seems to know his technical stuff. It appears he corrects design flaws in Ramsey's transmitters: Some things never change, this page is one of them!: Good collection of other people's designs: I knew there are some Checz Maniacs around!!: By Dillon.
FM Transmitters, J Pole design: 3-18W transmitters, Antenna, RF Amplifiers: Similar to Justin's site, 0.5W-25W Transmitter schematics: Similar to Justin's and Lar's site. 15W BLY88 based FM Transmitter with PCB and building instructions: Yet Another Fifteen Watt Transmitter based on BLY88. Easy to understand write-up, PCB designs. Money 2005 Patch 1105 Central Expressway more. : Can transmit in English too!! Should be good for about 4-7 watts?: Can transmit in English too!! 7 and 15 W RF Amps: See how this 'professional station' does it.
They claim ' Broadcast Quality' circuits and Antenna: See the Schematics of the equipment used by this Dutch FM Pirate Radio Station WARNING: Any free running VFO transmitter with less than 4 Transistors for 50-100mW output or 5 transistors at 2-5W output (ie no buffer stages, no voltage regulator for VFO) is probably highly unstable and it's frequency of operation will keep on changing with time, temperature, battery levels, antenna type, proximity of other objects to transmitter. Please build the following transmitter circuits with this warning in mind. See my for more info. And: From RCL in India: Some simple FM Transmitters: By Harry Lythall sm0vpo: and: PDF format file with circuit dia and good write up on operation and: By Kemo Kits of Germany: Based on the MicroCircuits VCO module. Better use the POS150!!!: New site started 04th April 99.
Promises lots of schematics and technical stuff: How simple can it get? You gotta make atleast this one work!!: At Radio Frequencies, the PCB Design ispart of the overall circuit design!! If you find a schematic of anything over 5W at 108 MHz (or 10mW at 400 MHz) with no PCB details, just forget it!!! Antenna, Antennae, Aerials, Rubber Duckies, J-Poles, Dipoles:: By Linx Technologies (PDF), quick way to understand the raw basics.: Everything you wanted to know about Antenna. GOOD SITE: Tools to design J Pole, Dipole, Quads: from the University of Murray, Down Under: by Mycal: By G. Forrest Cook: By Gavin Reibelt VK4ZZ: By W. Kinsner, VE4WK Multiple J Poles for different frequencies using the same mast: Excellent technical discussion on the J Pole Antenna.: From the FM10 Archives: By Marconi, good diagrams: By Nadisha: Excellent diagram with construction details: By Fred JUDD G2BCX, the inventor of the Slim Jim: by Harry sm0vpo Technical Knowledge and FAQ on RF, Pirate Radio:: A Good Technical Introduction for Newbies based on 'Radio is my Bomb' and: By Mycal himself: Another FM10 FAQ: Courtesy FIL: A page from the FIL o' FAQs: Info on Ramsey FMs, Antenna, Filters.
( Caveat: Just because a kit is often spoken about does not mean that it is technically any good. Please read kit reviews before any purchase decisions. Use above FAQs to glean basic info on Transmitter technology only): FAQ of the alt.radio.pirate newsgroup: From alt.radio.pirate newsgroup: By Stephen Dunifer himself. Actually not so technical, but interesting.: From the University of Newcastle, Down Under: Francis Mc Swiggan's dissertation for his BEng course: By Rick Harrison: Basic technology explained by Steve J.
Quest: As explained by the United States Naval Academy!!!: Basics of multiplexing FM Stereo signals: By Aztec Radio: My own look at Stereo, liberally SPICEd with waveform screen dumps. Would you buy a kit that did not have a Circuit Dia? I cannot believe it, but some top manufacturers still sell kits without circuit diagrams along with the kit. How do you as a hobbyist decide what to buy?
How do you understand what you are building? How do you repair it? How do you get parts in case some are missing? How do you attempt mods? But I would rather that Circuit dias were available BEFORE you buy. Three Cheers to for leading the way!!!
Feel strongly about this issue? Send the manufacturer's mail!!!
Veronica always supplied dias, Smartkit always did, Wavemach always did:) DIY Electronics has every kit's documentation PDF at web site:) 19 Sept 98.
68HC11 block diagram Internally, the HC11 is upward compatible with the, with the addition of a Y. (Instructions using the Y register have prefixed with the byte 18).
It has two, A and B, two, X and Y, a condition code register, a 16-bit, and a. In addition, there is an 8 x 8-bit multiply (A x B), with full 16-bit result, and Fractional/Integer 16-bit by 16-bit Divide instructions. A range of 16-bit instructions treat the A and B registers as a combined 16-bit D register for comparison (X and Y registers may also be compared to 16-bit memory operands), addition, subtraction and shift operations, or can add the B accumulator to the X or Y index registers. Bit test operations have also been added, performing a logical AND function between operands, setting the correct conditions codes, but not modifying the operands. Different versions of the HC11 have different numbers of external ports, labeled alphabetically.
The most common version has five ports, A, B, C, D, and E, but some have as few as 3 ports (version D3). Each port is eight-bits wide except for D, which is six bits (in some variations of the chip, D also has eight bits). It can be operated with an internal program and (1 to 768 bytes) or an external memory of up to 64. With external memory, B and C are used as and.
In this mode, port C is to carry both the lower byte of the address and data. Implementations [ ].
52-pin (PLCC) In the early 1990s Motorola produced an evaluation board kit for the 68HC11 with several UARTs, RAM, and an EPROM. The cost of the evaluation kit was $68.11. The standard monitor for the HC11 family is called BUFFALO, 'Bit User Fast Friendly Aid to Logical Operation.' It can be stored in on-chip ROM, EPROM, or external memory (also typically EPROM). BUFFALO is available for most 68HC11 family derivatives as it generally only depends upon having access to a single UART (SCI, or Serial Communications Interface, in Motorola parlance). BUFFALO can also run on devices that do not have internal non-volatile memory, such as the 68HC11A0, A1, E0, E1, and F1 derivatives.
Other versions [ ] The microcontroller family is intended as a mostly software compatible upgrade of the 68HC11. The microcontroller family is an enhanced version of the 68HC11. The robotics controller by Fred Martin is based on the 68HC11. A MC68HC24 port replacement unit is available for the HC11. When placed on the external address bus, it replicates the original functions of B and C.
Port A has input capture, output compare, pulse accumulator, and other timer functions; port D has serial I/O, and port E has an (ADC). References [ ].