Radio modems

pharosantenna
http://diydrones.com/profiles/blogs/cool-pixhawk-compatible-long-distance-directional-radio Pharos matches a dynamic directional (beam shaping) radio on the air with another on the ground, with the two tracking each other for multi-mile range for video and telemetry. Coming to Kickstarter in 2-3 weeks. The Pharos is a newly-developed smart antenna. Unlike conventional omni-directional antennas that waste energy in all directions, the Pharos concentrates the available power where you need it most. Working in conjunction with the Pixhawk autopilot (a version with its own autopilot is being also developed), the antenna activates the side facing your UAV, boosting reception and range. A second Pharos can also be used on the aircraft, quadrocopter or UAV, keeping ground control in aim at all times. The Pharos is also circular-polarized, granting immunity to polarization losses and multipathing signals, an optimum choice for challenging environments.

http://www.pharosantenna.com/

Long range radios china
http://www.bevrc.com/

One Watt
http://www.radiolabs.com/products/wireless/seed-usb-wifi-adapter.php One watt power amps

FPV
http://www.readymaderc.com/store/index.php?main_page=product_info&cPath=11_30_38&products_id=921

Notch filter
http://aglhobbiesllc.corecommerce.com/OMM-1280-MHz-Dual-Notch-Filter.html

Wi-fi radios
http://diydrones.com/profiles/blogs/open-source-embedable-low-cost-wifi-board-used-for-arducopter

3dr radios
http://diydrones.com/profiles/blogs/announcing-the-3dr-radio-telemetry-system

Cell modem

 * http://diydrones.com/profiles/blogs/releasing-the-shackles-part-2-ground-testing
 * ImageProcessing 3g www.skydrone.aero  model
 * http://www.instructables.com/answers/3G-to-Wi-Fi-portable-converter-on-the-cheap/

Microwave
http://www.alligatortech.com/default_low_pass_filter.htm

http://www.adv-mic.com/home.html

http://www.polyphasemicrowave.com/quadmod.html

trade journals
* http://www.rfdesign.com * http://www.sss-mag.com/ * http://www.rapidm.com/contact.shtml Danie v. Wyk

Radio hobbyists

 * http://www.rudius.net/oz2m/70mhz/transverter.htm ''BF988 transistor used in FreeSpaceOptics

radio modems
* SoftwareDefinedRadio See Ettus research for 2.4ghz modems * http://www.radio-tech.co.uk * http://www.racom.eu * http://www.1stop-radio.com * http://www.pribusin.com/p_tel.html Telephone line surge protector * http://www.triodatacom.com/ * http://www.raveontech.com/data_radio_solutions.html 20 Mile radios * http://www.qwizdom.co.uk * http://www.SECO-LARM.com * http://www.paccomm.com/ * http://news.directindustry.com * http://www.supercircuits.com/index.asp?PageAction=VIEWPROD&ProdID=4238 * http://www.lprs.co.uk * http://www.sda-falcon.co.uk * http://www.bitztechnology.com * http://www.radiotelemetry.co.uk * http://www.mipot.com * http://www.mavin.com Military and RF

RC hobby telemetry
http://www.xtremepowersystems.net/

http://hobbywireless.com./cart/ Also sells QuadroCopter

RF power amplifiers
* http://www.ramseyelectronics.com/site/default.asp?search=LPA-1&page=search&x=0&y=0 LPA-1 100khz - 1gig * http://www.ramseyelectronics.com/cgi-bin/commerce.exe?preadd=action&key=MXR5842C Pinhbole camera

GPS and GPRS
* GpsAndGprs * http://www.roundsolutions.com * http://www.m2mtelemetry.com

RF consultants
* http://dspace.dial.pipex.com/town/way/yko08/home.htm Waterbeach electronics * http://www.analog-innovations.com/

Small radios
* http://www.frontier-silicon.com/

Aerial video systems
* http://rangevideo.com/  RC electronics video transmitter 1watt 2.4ghz 10km range * http://www.rangevideo.com/index.php?main_page=product_info&cPath=48&products_id=131 With VideoGoggles * http://www.dc-rc.org/star.htm * http://www.cam4spy.de/ * http://www.dl1ie.de/ * http://www.mh.ttu.ee/risto/rc/logo20/wvideo/index.htm * http://www.lechner-cctv.de/ * http://www.intellicamsystems.com * http://www.rf-video.com/products%5Camplifier24.html * http://www.wirelessVideoCameras.com

Reverse engineer the http://rangevideo.com circuit and configure it for 1ghz. There are companies in China that can reverse engineer any PCB with a CAD robot.

Papparazi UAV modems
* from http://www.recherche.enac.fr/paparazzi/wiki/index.php/Modems * http://www.zigbee.org/en/index.asp 2.4ghz datalink * http://www.maxstream.net/products/xtend/oem-rf-module.php Maxstream 900mhz modem * http://www.aerocomm.com/rf_transceiver_modules/ac4790_mesh-ready_transceiver.htm * http://www.coronis-systems.com/produit.php?lang=EN&id=WCA Not recommended

135 Mhz
http://www.racom.eu/eng/products/narrowband-modems.html

173 Mhz
* http://www.rfdesign.co.za/pages/5645456/Products/VHF-Wireless-Products/Narrow-band-FM-transceiver.asp

433 mhz
Arduino_code raspberry 433mhz datatransmission using 433mhz modules http://www.rfxcom.com usb data terminal, used with http://lea-linux.org/documentations/Accueil http://www.rfdesign.co.za/pages/5645456/Products/433-MHz-Wireless-Products/433MHz-Radio-Modems.asp South Africa http://www.rfdigital.com/ http://www.datahunter.com http://www.abacom-tech.com http://www.lprs.co.uk/ http://www.glolab.com/ 418mhz http://www.lemosint.com/scripts/zigbee_etrx_module.asp Zigbee modules http://www.xbow.com/Products/productdetails.aspx?sid=156 Zigbee http://www.circuitdesign.co.jp/eng/default.asp http://jap.hu/electronic/codec.html http://www.xls.co.uk http://www.radio-tech.co.uk  http://www.iprs.co.uk  http://www.linxtechnologies.com/ldocs/f_prod.html http://www.polarisusa.com 7cm flat screen module p.11 June 2001 Nuts and Volts

Australia 915MHz - 928MHz
* http://www.aerocomm.com/rf_transceiver_modules/ac4790_mesh-ready_transceiver.htm * http://www.xecom.com/

902 - 928 Mhz
* http://www.digi.com/products/wireless/point-multipoint/xbee-pro-xsc.jsp Xbee 900mhz * http://www.freewave.com/files/datasheets/FGRO9SE%20.pdf 60 mile LOS * http://www.triodatacom.com/scada_telemetry.php 1 Watt 900Mhz

Europe 868MHz, 863, 865Mhz
* http://www.cdt21.com Sound transmitters in 863Mhz band * http://www.xbow.com/Products/productdetails.aspx?sid=156 * AC4869-250 * Frequency Band 868MHz (For Europe). * http://www.roundsolutions.com Radio modem on 863Mhz with Bluetooth

1.4ghz and 1.3ghz band
* http://www.freewave.com/files/datasheets/LRS140CSU.pdf * http://www.rangevideo.com/index.php?main_page=index&cPath=35_36&zenid=23b038fd44b48a84f2d8ab22f26d7536

3.4ghz modem
* http://www.freewave.com 20 mile range LOS

Long range 500km RF modems for UAV
* http://www.tfk-racoms.com/index.php?id=39 * http://www.mc.com/industries/aero/navigation.aspx * http://www.freewave.com/default.aspx * http://www.woodanddouglas.co.uk/ * http://www.uavcomm.com/index.php * http://www.uavfocus.com/uav_components/index_html

Two-way radios
* http://www.oregoncientific.co.za R600, 011 805 1966 * http://www.laradio.co.za/ * http://www.awesometools.co.za * http://www.zartek.co.za Two-way radios * http://www.homeguard.co.za RF passive alert. * http://www.hobbytron.com/FMTransmitter.html FM transmitters * http://www.satcomms.co.za

1.2ghz video modules
* http://www.electronicsinfoline.com ATV 30km range 1.240 - 1.265ghz video transmitter RC238T

Zigbee
Lemosint.com zigbee modem has AT command interface * http://www.lemosint.com/scripts/zigbee_etrx_module.asp Zigbee modules * http://www.xbow.com/Products/productdetails.aspx?sid=156 Zigbee * http://www.zigbee.org/en/index.asp 2.4ghz datalink * http://store.homeseer.com/store/HomeSeer-Z-Troller-Z-Wave-Primary-Controller-PC-Interface-Serial-P214C66.aspx * http://www.control4.com/ * http://en.wikipedia.org/wiki/Z-Wave See ConfiguringAlarmSystem * http://www.alertme.com * http://www.arrowaltech.co.za/competitions.html Arrow altech TI
 * CCD interface for Xbee
 * http://thesiliconhorizon.com/store/product_info.php?products_id=44&osCsid=4754282405327ec8cc4c7cea98d08302

2.4ghz video units
From 50mW to 1Watt

www.jasco.co.za
http://www.jasco.co.za have electronic engineers that can develop radio systems on any frequency. They did systems on 1Ghz for the mines(illegally) in South-Africa, a frequency used for missile tracking in the northern hemisphere. 1Ghz will give better LOS throughput that 2.4ghz or 1.2ghz and cut down on spectrum pollution in the ISM bands.

GNU radio
* http://comsec.com/wiki?UniversalSoftwareRadioPeripheral * http://www.gnu.org/software/gnuradio/ * http://hpsdr.org/

ATV amateur transmitter television and FM radio
9km Long range FM transmitters of data also * http://business.vsnl.com/rclindia/index.html * http://www.electronicsinfoline.com/ * http://www.electronicsinfoline.com/rcl/product_info.php/products_id/24

* http://transmitters.tripod.com/links.htm * http://www.designnotes.com/CIRCUITS/transmitshortwave.htm * http://www.maxstream.net/ * http://amateur_tv.tripod.com/index.html * http://dafh.org/gbppr/mil/fmvid/index.html * http://www.megastore.co.nz/Security/AVWireless.html

Practical circuits
See http://www.homeguard.co.za and http://www.nutsvolts.com June 2001 p.81 Build an RF sensor block by Karl Lunt. He uses the 433mhz serial transmitter chip from http://www.linxtechnologies.com

Amateur radio
{{{

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REMOTE VIDEO SURVEILANCE FR OM A MODEL PLANE in 2.4ghz spectrum http://www.dl1ie.de/ http://www.mh.ttu.ee/risto/rc/logo20/wvideo/index.htm http://www.lechner-cctv.de/

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www.wirelesstelemetry.co.uk

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Remote RF video transmission Does customised design http://www.woodanddouglas.co.uk/ http://www.plettac-security.co.uk/products.html

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WIRELESS VIDEO TRANSMISSION FROM MODEL PLANE http://www.geocities.com/Baja/Cliffs/2560/index.html

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TV video on a model plane REALTIME video on a model plane http://www.dc-rc.org/star.htm http://www.cam4spy.de/

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== 19K radio data transmitter 57k raio modem on 434mhz www.xls.co.uk www.radio-tech.co.uk www.iprs.co.uk

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====== http://transmitters.tripod.com/links.htm http://www.maxstream.net/

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=== ATV transmission http://amateur_tv.tripod.com/index.html

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=== PACCOM 56k 30km modem wireless http://www.paccomm.com/

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==== GRAND av wireless http://www.megastore.co.nz/Security/AVWireless.html

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=========

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= RF 433 mhz transmitter telemetry http://www.circuitdesign.co.jp/eng/default.asp

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==== PIC RF 433 mhz module telemetry transmitter 419 http://jap.hu/electronic/codec.html

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====== RF radio transmitters telemetry http://www.linxtechnologies.com/ldocs/f_prod.html

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= CCD video cameras 2.4ghz transmitter www.intellicamsystems.com

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Wireless radio link 433 www.lemosint.com

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= ATV RECeiver http://dafh.org/gbppr/mil/fmvid/index.html

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== FM transmission http://www.designnotes.com/CIRCUITS/transmitshortwave.htm

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== ATV amateur transmitter television 9km Long range FM transmitters of data also http://business.vsnl.com/rclindia/index.html http://www.electronicsinfoline.com/ http://www.electronicsinfoline.com/rcl/product_info.php/products_id/24

For Trade Enquiry and quantity ordering, Please contact:

Radio Communication Laboratory. Krishnanagar City, Nadia, West Bengal - 741 101. INDIA.
 * 2, College Street,

Tel: +91-3472-50184 / 54709 Fax: +91-3472-54709

E-mail: bulan@cal2.vsnl.net.in Try our Electronics Search Engine ELECTRONICS INFOLINE

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============ 418 MHZ wireless moduels R130 http://www.glolab.com/

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=========================== WIRELESS VIDEO TRANSMISSION FROM MODEL PLANE http://www.geocities.com/Baja/Cliffs/2560/index.html Shaun's Electronics P.O.Box 234 Wartburg 3233 South Africa shaunru@mweb.co.za Tel. (+27) 033-5031000 Fax. (+27) 033-5031555

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HAWK model plane http://www.modelflying.co.uk/features/feature33/index.html

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Radio Control Models & Electronics (RCM&E) http://www.modelflying.co.uk/aboutus.html

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== }}}

temp
HAWK model plane http://www.modelflying.co.uk/features/feature33/index.html

links
https://bitbanksoftware.blogspot.com/2018/12/optimizing-your-nrf24-range-with-simple.html from Bitbank2 lidar