CN8LI http://www. The PCB version of the Antuino (The Arduino based Antenna Analyzer) is still under development, but we will all be looking forward to its release. Would you happen to have the list of parts for the K6BEZ antenna analyzer. Minima -A general coverage transceiver by VU2ESE The Minima is a simple and easy to operate transceiver for all the HF bands with a crisp receiver, a clean output and component cost of less than $100. Recently I have been trying out a small active voltage probe antenna to aid reception on the LF bands. The wires from my home-brew four-wire radial kit also serve as guys for the setup. Ashhar is the designer of the BITX "open source" HF SSB transceiver, and has an international reputation as a home brewer, and is referred to as the "home brew. uBITX – A Compact HF Transceiver. I thought it might be interesting to bring out the double conversion SW receiver I had boxed up to see how well the receiver's VFO frequency (metering) matched up with PyDSA's readings as well as the MC3356 SA's display. But with other equipment, we were able to spot check performance with an HP Oscillator with Attenuator and a HP Frequency Sensitive Voltmeter with its Attenuator. Over the years, a few other instruments have tried to provide a deeper look into antenna performance. "Twinplex" 6SN7 regen receiver by AA8V Band Imaging Receivers; A Mate for the Mighty Midget, Lew McCoy, QST April 1966. Join our mailing list and stay updated about pioneering hardware and Tindie community activities. Farhan VU2ESE, auteur des BITX et MINIMA, nous avait récemment fait part de ses expérimentations autour d’une boîte d’accord QRP. 8 MHz to 54 MHz Preselector MFJ-1040. Especially because I would rather put that money towards a Heil. VU2ESE knocked up a design called a sweeperino which is an arduino, synthesizer and power meter that allows you to fart a signal out and then measure returned power. This antenna seems to also function on 17 meters when the transmatch is used. *A sweeper that can be your antenna analyzer, plot your crystal or band pass filter through the PC *It fits in your jacket *It can be assembled in an evening *Costs about $50 in new parts. We simply take a lot of old ideas and put them into a sort of mental kaleidoscope. As far as HAM Radio help, we merely able to report some 14 number of casualties to the health department for the quick response which was lower than that of 2018 Rath Yatra's casualties at the sea beach due to sea bath. A step up was a classic SWR/Power meter that showed you forward and reflected power. When it comes to home brew single side-band transceivers and test equipment, Ashhar Farhan, VU2ESE, is the master of building amateur radio equipment on a budget, with common parts. I mentioned this on tonight's tech net at 9 PM. com Blogger 68 1 25 tag:blogger. I ran across this some time ago during my Spectrum analyzer project days. An 80 and 40m superhet with 3 x 6U8 and a two-crystal filter. I suspect that without an antenna analyzer that can go up that high, fabrication errors for more elements will lead to dimininishing returns and ultimately maybe even diminishing performance. (This project is on hold indefinitely) This project is based around the recent HF1 QRP transceiver by Ashhar Farhan, VU2ESE. The antenna photo shows rotary dipoles for 15 and 10 meters. Note that this is pretty wide and won't fit comfortably. io group, Ashhar Farhan VU2ESE provided background information on the origins of his new "RF Lab in a Box' -- the Antuino. Components / Modules / PCBs • Components - passives, mechanical, ICs, you name it! • Digikey. A few more grams could be trimmed off by using Kevlar antenna wire and maybe lighter cables. com/profile/02503590840529488245 [email protected] Heathkit AM-1 antenna impedance meter Manual - picture;. MIZUHO MX21S QRP Transceiver. Antenna Analyzers. An antenna analyzer or in British aerial analyser (also known as a noise bridge, RX bridge, SWR analyzer, or RF analyzer) is a device used for measuring the input impedance of antenna systems in radio electronics applications. Many Live-ATC sites are using this antenna to stream aviation transmissions to the Internet. FM for the Bitx ? The "Bitx" is a simple transceiver designed by Ashhar Farhan, VU2ESE, with extensive use of commonly found and inexpensive electronic components. BritX exciter with additional audio band pass filter (assembled and tested) BritX build based on BITX transceiver. The transceiver is an interesting SSB design with wide tuning range from 0-30MHz and should cover several amateur bands. I used a circuit attributed to Ashhar Farhan, VU2ESE and Wes Hayward W7ZOI for a Spectrum Analyzer project (Specan). Foil-lined foam insulation board, scraps of lumber, and a paint-thinner can hardly sound like the tools of a radio astronomer. Addendum: A nice video showing good construction technique…. See the full post on VU2ESE’s radio experiments blog. On the air, my handle is Ash (as. In a series of e-mails to the BITX20. I decided to build another one for a friend and. Over the years, a few other instruments have tried to provide a deeper look into antenna performance. It weighs 900 grams including the carry case. Antenna Analyzer Boards. This rotor replaced a hygain HDR 300 which. If you are a regular follower of these pages as well as a radio amateur, you may well have heard of [Ashhar Farhan, VU2ESE]. Sweeperino has been one of my most useful test instruments. Before braving the elements, however, I wanted to use an antenna analyzer to check out my SWR's for my Buckmaster 7-band OCF dipole. If we were looking at the results of a real oscillator with a spectrum analyzer we would not be able to see results at -200dB or more. Parent Directory - -5V_Source. Since I still have some problems with some of the libraries for the stm32 board, I will go back to the old reliable Nano. VU2ESE knocked up a design called a sweeperino which is an arduino, synthesizer and power meter that allows you to fart a signal out and then measure returned power. 30 Antenna Analyzers from 9 manufacturers listed on everything RF Antenna Analyzers from the leading manufacturers are listed below. Specialising in new & used Ham (Amateur) Radio, Commercial Two-Way Radio, Marine & Aviation equipment. Using ordinary electronic components and improvising where specific components like toroids are not available,. Steve's Eclectic Radio Blog Welcome! For years, I've enjoyed reading the blogs of other radio and electronic hobbiests and following the blogger's progress as he (she) converts an idea, first into a seemingly random pile of parts, and then into some sort of useful or superfluous (but nontheless fascinating) device. Components / Modules / PCBs • Components - passives, mechanical, ICs, you name it! • Digikey. Station Packed and Ready for Transport With all of the assembly and testing of the components of our 2. It is impossible. For antenna tuning you need antenna analyzer MFJ259B, GDO. It will take a whole series of articles to actually document everything that this little one can do. We are still working on this project so this document will be updated. *A sweeper that can be your antenna analyzer, plot your crystal or band pass filter through the PC *It fits in your jacket *It can be assembled in an evening *Costs about $50 in new parts. " The Raduino The new BITX40's Raduino is an Arduino Nano powered, small, hackable board based on the rock steady Si5351 synthesizer with a clean 16×2 frequency display, free and open source. Com Homepage The Lowcountry Listening Post The N2HLT UHF Repeater System The Radio Web Site of WØEEA tophat design tool V73NS va3iul - Wire_Antennas_for_Ham_Radio VE7CA -> Home vk3ye VK5REX D-Star Repeater - Blog VK6ABA digital stuff vk6ro vu2ese Ashhar. The Bitx40 is an amazing platform and VU2ESE has even included an option to select the power output level simply by changing what voltage is fed to the IRF510. VU2ESE knocked up a design called a sweeperino which is an arduino, synthesizer and power meter that allows you to fart a signal out and then measure returned power. AMSAT reports that Vice President-Engineering Jerry Buxton, N0JY, delivered and integrated its Fox-1Cliff CubeSat into the launch vehicle on September 24, in preparation for sending it into orbit later this year. 2 Colofon RAZzies is een uitgave van de Radio Amateurs Zoetermeer. When it comes to home brew single side-band transceivers and test equipment, Ashhar Farhan, VU2ESE, is the master of building amateur radio equipment on a budget, with common parts. It's also got a handle to carry it. Antenna Analyzer - F6BQU. It has two cylinders made from aluminum flashing 30 1/2” long, wrapped around 2” (2. 5 metre squid pole is carbon fibre and weighs an extra 200 grams. Propagation of Radio Waves at Frequencies Below 300 KC/S covers the proceedings of the Seventh Meeting at the AGARD Ionospheric Research Committee, held in Munich, Germany on September 17-21, 1962. Got excellent audio reports! Hi Marks to a superb rig. Actually it was part of my other Antenna analyzer project, which got stuck due to lack of time. I used a PA0RDT designed active antenna (but with MPF102 and 2N3904 devices and a 9V supply from a PP3 battery) to listen successfully to amateur signals on both 500kHz and 136kHz. It satisfies for regular work, a few trips to the field as well. Farhan VU2ESE, auteur des BITX et MINIMA, nous avait récemment fait part de ses expérimentations autour d’une boîte d’accord QRP. My simulations in LTSpice show a 6db insertion loss at 112Mhz as do the experimental results reported by Ashar. txt) or read online for free. This is your bi-weekly deep dive on making, DIY, electronics, and technical topics of interest to the radio amateur. S shipping will add $5, International shipping will add $15 – For U. (This project is on hold indefinitely) This project is based around the recent HF1 QRP transceiver by Ashhar Farhan, VU2ESE. On the air, my handle is Ash (as. As a member of Ham­Mag, for as little as $15. Counter-intuitively, these plots are hard to read because they have no noise in them. Since I still have some problems with some of the libraries for the stm32 board, I will go back to the old reliable Nano. Recently I have been trying out a small active voltage probe antenna to aid reception on the LF bands. I had been following the Poor Hams Scalar Network Analyzer group on Yahoo. com,1999:blog. Return Loss Bridge. there will probably be some unusable area around the IF frequency I select. We do our best to remove all the noise from our analog equipment, but there is a noise floor regardless. Antenna Analyzers. Recently I have been trying out a small active voltage probe antenna to aid reception on the LF bands. The SWR-121-HF is a 32 MHz cable and antenna analyzer from AEA Technology. com http://www. Antenna Analyzer Boards. the test gear trifecta with VU2ESE's Sweeperino and SPECAN. Ashhar Farhan VU2ESE and designer of the µBITx has announced that he is working on a new kit – the Antuino. On the air, my handle is Ash (as. Join your hosts George KJ6VU and Jeremy KF7IJZ as they discuss current developments in ham radio while introducing listeners to a plethora of topics and skills such as test equipment, 3D Printing, Arduino, Raspberry Pi, and more. Grid Dip Meter 2 MHz - 20 MHz. com,1999:blog. The bandwidth of the filter was set, largely experimentally, to 2. MFJ-226 1-230 MHZ ANTENNA EXPERT TIMES GRAPHIC. Multi-band antennas may need different lengths of feed line in order to make proper antenna adjustments. Listed under the Technical Reference/Vector Network Analyzer category that is about VNA Vector Network Analyzer. FM for the Bitx ? The "Bitx" is a simple transceiver designed by Ashhar Farhan, VU2ESE, with extensive use of commonly found and inexpensive electronic components. The Liberal Gun Club Forum. George, KJ6VU, has a great podcast and accompanying web page with some interesting gear and DIY projects going on. You'll notice there's ground copper under the HM-11 antenna. 53 to 230MHz without a radio attached! Read Complex Impedance as series resistance and reactance (R+jX) or as magnitude (Z) and phase (degrees). VHF Wattmeter. Got excellent audio reports! Hi Marks to a superb rig. Loads of downloadable old tube manuals as well. 5 metre squid pole is carbon fibre and weighs an extra 200 grams. Steve's Eclectic Radio Blog Welcome! For years, I've enjoyed reading the blogs of other radio and electronic hobbiests and following the blogger's progress as he (she) converts an idea, first into a seemingly random pile of parts, and then into some sort of useful or superfluous (but nontheless fascinating) device. The bandwidth of the filter was set, largely experimentally, to 2. Since I still have some problems with some of the libraries for the stm32 board, I will go back to the old reliable Nano. I started working on the SI5351 antenna analyzer that I was playing with. Also NVIS antennas, a tuned all band shortwave vertical antenna, and how to use antenna analyzer to measure ground parameters used in EZNEC and other programs. A view of the lab/shop is shown below. On the air, my handle is Ash (as. This week Jeremy spends time with some of our listeners to talk about what's on THEIR workbenches. It weighs 900 grams including the carry case. 20m Transceiver BITX - VU2ESE. A flexible test instrument in a single box called the Antuino. You may adjust the band min and max frequency later (HF band) You can ask me to replace 12m instead 160m so the band list is 80m, 40m, 30m, 20m, 17m, 15m, 12m, 10m. This is a discussion forum of China Amateur Radios. Farhan VU2ESE, auteur des BITX et MINIMA, nous avait récemment fait part de ses expérimentations autour d’une boîte d’accord QRP. gif: 04-May-2011 17:34 : 204K : -30V_3A_Switch-Mode_Power_Supply. A step up was a classic SWR/Power meter that showed you forward and reflected power. Underneath the crooked shield (right of the switch/mixer/IF amps) is the crystal filter, which I made from seven 20MHz CPU crystals. 666 MHz, caused by the reflected signal down the coax is very clearly seen. I thought it might be interesting to bring out the double conversion SW receiver I had boxed up to see how well the receiver's VFO frequency (metering) matched up with PyDSA's readings as well as the MC3356 SA's display. 5 MHz to 10 MHz Superheterodyne Receiver; 7 MHz Direct Conversion Receiver; 20m Direct Conversion Receiver; 27 MHz R/C Receiver; 80m/40m Direct Conversion Receiver; 80m Superheterodyne Receiver; Aircraft Receiver 118 MHz to 136 MHz; AM Superheterodyne Receiver with NE612; Shortwave AM Receiver; 2 Bands Shortwave AM. I wanted to check different low-pass filters to clean up the square-wave out of the 5351, and needed a simple way to do this. Connecting to a simple dipole antenna the results also looked like what I would expect. Those devices, coupled with an appropriate antenna, can help establish contacts spanning thousands of kilometres, sometimes with less than 5W of RF power! When you pass your HAM radio license, you have to prove you know how SSB transceivers work, what the building blocs are, what the theory behind it is,. txt) or read online for free. Probably the cheapest multiband HF SSB amateur transceiver you can get is the uBitx, designed by Ashhar Farhan VU2ESE. https://oshpark. I'm going to do the touch screen modification when I finish a couple of other projects off (namely antenna analyser, back garden & antenna tuner). I was learning my way around Farhan's new Antuino this morning. use on forty and twenty meters for a few months at VU2ESE. That can be found here. Connecting to a simple dipole antenna the results also looked like what I would expect. I started working on the SI5351 antenna analyzer that I was playing with. AMSAT has purchased a commercial launch opportunity for Fox-1Cliff and has been. Let's create an oscillator and a piece of test equipment that we can use to measure it. FM for the Bitx ? The "Bitx" is a simple transceiver designed by Ashhar Farhan, VU2ESE, with extensive use of commonly found and inexpensive electronic components. Everything You Need to Know About Choosing an Antenna Analyzer or Other Ham Radio Equipment. txt) or read online for free. Bijeenkomsten van de Radio Amateurs Zoetermeer vinden plaats op elke tweede en vierde woensdag van de maanden september juni om 20:00 uur in het clubhuis van de Midgetgolfclub Zoetermeer in het Vernède sportpark in Zoetermeer. Λινκ Για Σχεδια Radio Amateur - Free download as PDF File (. This item: KKmoon MR300 Shortwave Antenna Analyzer Meter Tester with Bluetooth 1 to 60MHz RF SWR for Ham Radio $109. I need to find an easier way to lower and rising the mast and then I'll go for minimum SWR!. with the RLB would be useable as a portable instrument for tuning antennas. HF radios are fascinating. 40m DSB Transceiver by PY2OHH 4 W - 7050 TO 7130 kHz with Ceramic Resonator. I even purchased a set of boards, but had not built them yet. 200khz to 50MHz, if you do the necessary mods), usually used to tune antennas to resonance for your desired frequency range (a. Martin Jue will discuss HF mobile with emphasis on mounting and setting up mobile antennas. BandScope for 2m Band. Small 80m Antenna Articles | G7FEK st2nh Steve's Radio Page The Commo Bunker k2sz The KMØT. CN8LI http://www. 2 GHz LNA with Tunable Image Reject Filter. This week Jeremy spends time with some of our listeners to talk about what’s on THEIR workbenches. This is your bi-weekly deep dive on making, DIY, electronics, and technical topics of interest to the radio amateur. There is no note at all that you can not install this antenna on a mast. Amateurradiokits. EH Antenna "This is a picture of my EH ‘STAR’ antenna for 80 meters. The SWR-121-HF is a 32 MHz cable and antenna analyzer from AEA Technology. Dit najaar een mooi nieuw project, de μBITX HF transceiver van Ashhar Farhan, VU2ESE. Jack has several very nice pieces of LAB Grade test equipment. He also explained how the device performs the SWR meter, Power Meter and Scalar Network Analyzer functions. txt) or read online for free. 4 KHz, by selecting the appropriate shunt capacitors. We spend time with Mike KM4VKR to discuss his upgrades to the Antenna Analyzer, Vance N3VEM to talk about building his own digital mode interface for his iPhone, and Smitty KR6ZY to learn about his multi-band WSPR experiences. It features a highly sensitive, high precision Yokogawa meter for measurement accuracy in 35 ranges covering 1. HF radios are fascinating. As we have not found any business collaboration we have decided to change Ham­Mag. An accomplished DXpeditioner, having operated in over 40 DX entities including South Sandwich Island. Listed under the Technical Reference/Vector Network Analyzer category that is about VNA Vector Network Analyzer. MIZUHO MX21S QRP Transceiver. The bandwidth of the filter was set, largely experimentally, to 2. Send your shack pics in for the. ANTENNA ANALYZER. Ashhar Farhan, VU2ESE, creator of the low cost, excellent performance for the money uBitx and Bitx40, has a new gadget. *A sweeper that can be your antenna analyzer, plot your crystal or band pass filter through the PC *It fits in your jacket *It can be assembled in an evening *Costs about $50 in new parts. Our selection of antenna analyzers is complete. EA3GCY Ham Radio KITS - Radioamateur transceivers and more. Antenna Analyzer - F6BQU. amplifier, µbitx multiband transceiver and an Arduino based antenna analyser. 2 GHz LNA with Tunable Image Reject Filter. HF radios are fascinating. Although I am very satisfied with the result, I do not think I will use Fritzing for my next project. Recently I have been trying out a small active voltage probe antenna to aid reception on the LF bands. 53 to 230MHz without a radio attached! Read Complex Impedance as series resistance and reactance (R+jX) or as magnitude (Z) and phase (degrees). Makers of Amateur and Professional Antenna Analyzers is a curation of 20 resources about , Bird Technologies, Micro908 Kit, KC901S RF MULTIMETER 3GHz VECTOR ANTENNA ANALYZER, MetroVNA, RigExpert. 这是一个中国业余无线电爱好者的论坛. But when coupled with an SDR, a couple of amplifiers, and a fair. You do not require any other test instrument to align and build a spectrum analyzer itself. Visitors at W7ZOI, May 15, 2017 (updated, 17May2017, 28Feb2019) Ashhar Farhan, VU2ESE, in " the shack" at W7ZOI The Geekfest When Farhan told us that he and Humera were coming to the USA, we invited them to visit the Pacific Northwest and they accepted. As far as HAM Radio help, we merely able to report some 14 number of casualties to the health department for the quick response which was lower than that of 2018 Rath Yatra's casualties at the sea beach due to sea bath. Measurement Receiver 1 to 150 Mhz. Sa réponse a été immédiate m'assurant que l'utilisation de tel écran est possible et qu'il a mit en ligne le sketch et le schéma pour l'utilisation de AD9851. When it comes to home brew single side-band transceivers and test equipment, Ashhar Farhan, VU2ESE, is the master of building amateur radio equipment on a budget, with common parts. Antenna Analyzer Boards. I love this antenna. 2013-Mar-23 - Fan Dipole for 20m/40m The antenna at my QTH in Brooklyn has not been great. I thought I’d add some additional information on the PyDSA python-based spectrum analyzer discussed in the previous post. This rotor replaced a hygain HDR 300 which. We are still working on this project so this document will be updated. They connect directly to the antenna or coaxial cable and send a very low power variable RF signal which is measured and displayed in several ways. Montana Motor Stables is a name that I dreamed up about 12 years ago when I was still in the Army. The bandwidth of the filter was set, largely experimentally, to 2. Farhan VU2ESE, auteur des BITX et MINIMA, nous avait récemment fait part de ses expérimentations autour d’une boîte d’accord QRP. Send your shack pics in for the. This page contains only schematics who speak for themselves. As the title "says" I just arrived to the home country of Farhan, VU2ESE, the "inventor" of the BITX transceiver and was thinking how nice would be to build one (another) with components sourced locally. is illustrated here. 200khz to 50MHz, if you do the necessary mods), usually used to tune antennas to resonance for your desired frequency range (a. Only 1 left in stock - order soon. · Voltage Probe Antenna Preamplifier - VE7BPO · High-Dynamic Range Preamplifier - G3SBI · 1. Our homebrew gear is built in another corner of the basement. Menjual macam sparepart, pcb, modul elektronika merakit. Loads of downloadable old tube manuals as well. It took me a very long time. 2 GHz LNA with Tunable Image Reject Filter. 2 Colofon RAZzies is een uitgave van de Radio Amateurs Zoetermeer. As we have not found any business collaboration we have decided to change Ham­Mag. I have been struggling to understand how my simple dipole antenna works (or doesn't work). I ran across this some time ago during my Spectrum analyzer project days. Specialising in new & used Ham (Amateur) Radio, Commercial Two-Way Radio, Marine & Aviation equipment. My Journey Started from Berhampur, my home town on 6th November Evening. Jack has several very nice pieces of LAB Grade test equipment. I mentioned this on tonight's tech net at 9 PM. Reference. Antenna Analyzer Boards. 18 dB LT1253 DDS Amplifier by K8IQY This 18 dB gain amplifier was built Manhattan-style to evaluate the Linear Technology LT1253 dual video amplifier as a candidate output amplifier for DDS systems employing the Analog Devices AD9850 and similar devices. Then modified the antenna analyzer code to incorporate the 5351 code I had written. Bijeenkomsten van de Radio Amateurs Zoetermeer vinden plaats op elke tweede en vierde woensdag van de maanden september juni om 20:00 uur in het clubhuis van de Midgetgolfclub Zoetermeer in het Vernède sportpark in Zoetermeer. Got excellent audio reports! Hi Marks to a superb rig. With these two, I can operate anywhere from 80 to 6 Meters with no problems. Dit najaar een mooi nieuw project, de μBITX HF transceiver van Ashhar Farhan, VU2ESE. 30 Antenna Analyzers from 9 manufacturers listed on everything RF Antenna Analyzers from the leading manufacturers are listed below. No surface mount components are used :-). Παραλλήλισα κάποιες αντιστάσεις και πέτυχα τα 190 Ωμ. It discusses how to adjust your antenna, enhance your antenna analyzer and the ways certain analyzers can be used as general purpose test instruments. The BITX40 is a $60 Arduino controlled 7 watt QRP SSB 40 meter transceiver designed and built by Ashar Farhan VU2ESE. I thought I'd add some additional information on the PyDSA python-based spectrum analyzer discussed in the previous post. Since I still have some problems with some of the libraries for the stm32 board, I will go back to the old reliable Nano. When I first strung up my Buckmaster 7-band OCF dipole, I borrowed the RigExpert AA-30 from Greg W1TEN, in order to measure the VSWR, since I wasn't thrilled about spending $200 for the analyzer. QRP 20m Antenna Tuner Unit A QRP antenna tuner for 20 meters band 5 Watt 40 Meters transmitter This circuit is unique in that it uses a power mosfet as a final rather than a conventional bipolar transistor. Actually it was part of my other Antenna analyzer project, which got stuck due to lack of time. Clocked with a custom 555 circuit that lets him single-step and monitored with an Arduino Mega-based logic analyzer, we get a complete look at the fetch and execute cycle of a simple, hard-wired program at the pin level. com/farhan/xcvr1. io group, Ashhar Farhan VU2ESE provided background information on the origins of his new "RF Lab in a Box' -- the Antuino. *A sweeper that can be your antenna analyzer, plot your crystal or band pass filter through the PC *It fits in your jacket *It can be assembled in an evening *Costs about $50 in new parts. From Wikipedia, the free encyclopedia Jump to: navigation, search A modern HF transceiver with spectrum analyzer and DSP capabilities A steel amateur radio antenna mast "Ham radio" redirects here. VHF Wattmeter. EH Antenna "This is a picture of my EH ‘STAR’ antenna for 80 meters. The diycrap way to understand stuff is usually to read, build and measure, and then read some more. The BITX40 is a $60 Arduino controlled 7 watt QRP SSB 40 meter transceiver designed and built by Ashar Farhan VU2ESE. AMSAT has purchased a commercial launch opportunity for Fox-1Cliff and has been. Join our mailing list and stay updated about pioneering hardware and Tindie community activities. Here's a picture of the mixer:. Visitors at W7ZOI, May 15, 2017 (updated, 17May2017, 28Feb2019) Ashhar Farhan, VU2ESE, in " the shack" at W7ZOI The Geekfest When Farhan told us that he and Humera were coming to the USA, we invited them to visit the Pacific Northwest and they accepted. Handheld Cable and Antenna Analyzers offer measurement capabilities including precision return loss/VSWR, cable loss and distance-to-fault (DTF) measurements. Here's a picture of the mixer:. 3680 A/B Cable & Antenna Analyzer is developed for on-site test, which is mainly used for the test of cable & antenna system in various communication base stations, including trunking, GSM, PCS/DCS, CDMA, GPRS, WCDMA, CDMA2000, TD-SCDMA, LTE and paging system. Minimum SWR is still 2. Addendum: A nice video showing good construction technique…. I'm going to do the touch screen modification when I finish a couple of other projects off (namely antenna analyser, back garden & antenna tuner). the test gear trifecta with VU2ESE's Sweeperino and SPECAN. As a 2009 QRP ARCI Hall of Fame inductee - Hans Summers, G0UPL, is an electronic experimenter and amateur radio innovator extraordinaire. YouKits QRP CW tranceivers, tuners, antenna analyzers; Hamsource Lithium bateries for FT-817 or the shack, FG masts; Micro-Computers. For one thing, the antenna had stretched enough that the resonant frequency was below 7 MHz, and up in the phone portion of the band, the SWR was above 3. BritX exciter with additional audio band pass filter (assembled and tested) BritX build based on BITX transceiver. Ashhar Farhan VU2ESE and designer of the µBITx has announced that he is working on a new kit – the Antuino. Ron Payne, WA6YOU demonstrates how to use an antenna analyzer. Every effort has been made to insure the accuracy of this reference. Our specialty will be low cost, high enjoyment kits for the builder that can be assembled in an evening or two. Every effort has been made to insure the accuracy of this reference. ML&S Martin Lynch & Sons, Staines, Surrey UK. (This project is on hold indefinitely) This project is based around the recent HF1 QRP transceiver by Ashhar Farhan, VU2ESE. Having set the capacity hats, and tight a couple of bolts, that's what I saw on my 259 Antenna Analyser. com/profile/02503590840529488245 [email protected] I had been following the Poor Hams Scalar Network Analyzer group on Yahoo. I need an antenna analyser as I can't take my TDS210 and DG1022Z out without an inverter and massive car battery which is just stupid. HF SWR Bridge. As the title "says" I just arrived to the home country of Farhan, VU2ESE, the "inventor" of the BITX transceiver and was thinking how nice would be to build one (another) with components sourced locally. Ashhar Farhan VU2ESE — the polymath from Hyderabad, India — whose Bitx series of transceivers has taken ham radio’s QRP world by storm, is following his recent Bitx40 success by offering the impressive Microbitx transceiver, also known in ham radio circles as the Ubitx (which we’ll refer to it as here). FM for the Bitx ? The "Bitx" is a simple transceiver designed by Ashhar Farhan, VU2ESE, with extensive use of commonly found and inexpensive electronic components. The World's most popular SWR analyzer just got incredibly better and gives you more value than ever! The MFJ-259C builds on the popularity of the incredible 259B and adds a Frequency Counter mode, plus coverage of the 220MHz band! The famous MFJ-259C gives you a complete picture of your antenna’s performance. Lightening Detector. It satisfies for regular work, a few trips to the field as well. S shipping will add $5, International shipping will add $15 – For U. I started working on the SI5351 antenna analyzer that I was playing with. Admittedly I'm being picky but I was wondering if anyone had suggestions on how to improve my 112 Mhz band pass filter. Then modified the antenna analyzer code to incorporate the 5351 code I had written. 2 GHz LNA with Tunable Image Reject Filter. I suspect that without an antenna analyzer that can go up that high, fabrication errors for more elements will lead to dimininishing returns and ultimately maybe even diminishing performance. 80m 5W CW Transceiver 7 MHz QRP Transceiver - DL5NEG 27 MHz R/C Transceiver 49 MHz Walkie-Talkie 432 MHz Data Transceiver QRP SSB Transceiver QRP Transceiver 40m/20m - IK3OIL Short Range Wireless Data Communication Transceiver QRP 20m SSB HF Transceiver CW SSB NorCalSierra Transceiver QRP 40m - F6BQU. Benton County Oregon. The UK leading Supplier and Distributor of Communications Equipment. I started with DDS first, wrote my own software for controlling DDS. gif: 11-Dec-2015 14:16 : 21K : -30MHz_AM-FM-CW-SSB-DRM_Receiver. com Blogger 68 1 25 tag:blogger. In my case, I have two antennas - an 88' Extended Double Zepp (EDZ) wire antenna and a Butternut HF9V antenna. Ashhar Farhan, VU2ESE, creator of the low cost, excellent performance for the money uBitx and Bitx40, has a new gadget. Every effort has been made to insure the accuracy of this reference. The BITX40 is a $60 Arduino controlled 7 watt QRP SSB 40 meter transceiver designed and built by Ashar Farhan VU2ESE. The transceiver is an interesting SSB design with wide tuning range from 0-30MHz and should cover several amateur bands. The Radio Attic's Archives-This web site includes links to photos of 9,934 radios which have known model numbers or "official" names ; NJ7P Tube Database Search - This database contains data on thousands of tubes. 5 metre squid pole is carbon fibre and weighs an extra 200 grams. and second- impedances should be matched for optimum transfer of power from transmitter to antenna. Using the Digilent Analog Discovery 2's Network Analyzer the connector is swept from 1kHz to 10Mhz without the cable attached, and then with the cable attached. Over the years, a few other instruments have tried to provide a deeper look into antenna performance. This antenna will give you about 2. Ashhar Farhan, VU2ESE, creator of the low cost, excellent performance for the money uBitx and Bitx40, has a new gadget. I love this antenna. com Blogger 20 1 25 tag:blogger. Bijeenkomsten van de Radio Amateurs Zoetermeer vinden plaats op elke tweede en vierde woensdag van de maanden september juni om 20:00 uur in het clubhuis van de Midgetgolfclub Zoetermeer in het Vernède sportpark in Zoetermeer. io group, Ashhar Farhan VU2ESE provided background information on the origins of his new "RF Lab in a Box' -- the Antuino. gif: 11-Dec-2015 14:16 : 21K : 0-30MHz_AM-FM-CW-SSB-DRM_Receiver. Grid Dip Meter 2 MHz - 20 MHz. In addition, there was about 50cm of wet snow on the roof just 1m below the antenna when I did the measurements. The bandpass filter was only made with micro-inductors and SMD capacitors. BandScope for 2m Band. Clocked with a custom 555 circuit that lets him single-step and monitored with an Arduino Mega-based logic analyzer, we get a complete look at the fetch and execute cycle of a simple, hard-wired program at the pin level. 5 metre squid pole is carbon fibre and weighs an extra 200 grams. Parent Directory - -5V_Source.