The Watson 2000 is a 3 band fibreglass VHF antenna. Homebrew RF Circuit Design Ideas "There is no such thing as a new idea. Alan - K6ZY at the last Puget Sound QRP (pQRP) meeting mentioned he was considering building a Homebrew Farhan VU2ESE Minima Transceiver project. Minimum SWR is still 2. Build Your Own Antenna Analyser for under $50 Beric Dunn K6BEZ. Les meilleures offres pour Hambuilder HBR10HF Homebrew tous Bande HF Transceiver sont sur eBay Comparez les prix et les spécificités des produits neufs et d'occasion Pleins d'articles en livraison gratuite!. 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. LCD Output FET Project 2. In a series of e-mails to the BITX20. I'll probably do a 8 or 12 element colinear. 5/7/07: The AIM4170 tolerance to external RF signals. This is very useful in conjunction with a simple tuner to adjust the antenna for an optimum VSWR (voltage standing waves ratio). HF Antenna Analyser With Arduino and DDS Module: HiIn this Instructable I'll show you how I built a low-cost antenna analyser which can measure an antenna and display its VSWR over any or all of the HF frequency bands. VU2ESE's radio experiments: Home Specan - A reboot of the W7ZOI/K7TAU Spectrum Analyzer Balanced Antenna Tuner - A balanced line tuner for open wire feeders and doublet Sweeperino - A simple sweeper/signal generator/power meter for your shack A 25 watt dual-band linear - A simple sing. The EI3EBB 'antenna farm'. It is a compact, single board design that covers the entire HF range with a few minor trade-offs. The BITX40 is a $60 Arduino controlled 7 watt QRP SSB 40 meter transceiver designed and built by Ashar Farhan VU2ESE. 1MHZ-35MHZ Antenna Analyzer: AAZ-0713A. (phonestack. Τις συνέδεσα στις μπόρνες της ανοικτής γραμμής και με ένα μικρό κομμάτι κοάξιαλ ένωσα το MFJ 269 Antenna Analyzer. A step up was a classic SWR/Power meter that showed you forward and reflected power. The filter design is based on YU1LM's documentation. Actually it was part of my other Antenna analyzer project, which got stuck due to lack of time. RECEIVERS / RECEPTORES. 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. (This project is on hold indefinitely) This project is based around the recent HF1 QRP transceiver by Ashhar Farhan, VU2ESE. Grid Dip Meter 2 MHz - 20 MHz. The key factor here is the measuring part, as I need to measure the standing wave ratio (SWR) on the feed line, as this is a key parameter. However, the modern champion is the antenna analyzer which is a way of measuring vector impedance. "Twinplex" 6SN7 regen receiver by AA8V Band Imaging Receivers; A Mate for the Mighty Midget, Lew McCoy, QST April 1966. It will take a whole series of articles to actually document everything that this little one can do. He also explained how the device performs the SWR meter, Power Meter and Scalar Network Analyzer functions. I started working on the SI5351 antenna analyzer that I was playing with. VHF Wattmeter. Connecting to a simple dipole antenna the results also looked like what I would expect. You can read your antenna’s SWR and Complex Impedance 530 KHz to 230 MHz continuously with no gaps. A simple routine can be inserted into the firmware of the analyzer that will very quickly read the detected voltages when no output is present from the AD950 DDS. 40 MHz to 800 MHz CATV LNA. 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. - Ashhar Farhan, VU2ESE. Nous cherchons également un assistant du comité dans le domaine de la coordination de la formation. Listen to HRWB031-Field Radio Maker and 60 other episodes by Ham Radio Workbench Podcast. VU2ESE BITX40 $59 7W 40M SSB Transceiver Project 1 - K6BEZ Antenna Analyzer Final Version. MFJ-259C 530 KHz - 230 MHz SWR Analyzer World’s most popular SWR analyzer is super easy-to-use The famous MFJ-259C gives you a complete picture of your antenna’s performance. The measured forward and reflected values in this routine can then be stored as an offset which can be subtracted from future measured FWD and REV voltages during a sweep of the antenna. This antenna covers 80 to 6 meters with low feed point impedance and will work with most radios, with or without an antenna tuner. The original BITX was published on the Internet in the year 2003. 1:00 pm – 2:30 pm Lunch. I switch beetwen the bands with relays because I had a lot of. Ce kit a retenu toute mon attention de par sa simplicité de conception. Medium Wave Active Antenna. The registration was made immediately and passed the word to the Mysuru group to check out the possibility of making a group travel plan. Marvin KE6HTS notes a useful addition to the WB2HOL antenna: "A choke balun consisting of 6 - 8 turns of coax around the beam will help reduce the pattern skew significantly. Assembly is usually quick (under ten minutes) and a quick check with an antenna analyzer confirms the antenna is resonant. Structure of radio: In case of receiving the signal from antenna bypasses power amplifier. a W8TEE/K2ZIA antenna analyzer and have been tweaking my antenna a bit. Μιχάλη, υπάρχουν πολλοί τρόποι για να δοκιμάσεις την απόδοση μιας κεραίας. He also explained how the device performs the SWR meter, Power Meter and Scalar Network Analyzer functions. SWR meter and antenna analyzer, power meter and scalar network analyzer all in one box. I have been struggling to understand how my simple dipole antenna works (or doesn't work). 1:00 pm - 2:30 pm Lunch. We also invite you to visit the website HEX-BEAM SP7IDX more nice foto:. I'll probably do a 8 or 12 element colinear. This model has everything I would need. Most will be glad to help. This week Jeremy spends time with some of our listeners to talk about what's on THEIR workbenches. 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. Adjust your antenna tuner for a perfect 1:1 match without creating QRM. iPortable Antenna Analyzer The BITX40 is a $60 Arduino controlled 7 watt QRP SSB 40 meter transceiver designed and built by Ashar Farhan VU2ESE. Send your shack pics in for the. 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. [Alexandre]'s solution is simple and elegant: conceal a circular magnetic loop antenna beneath the rim of a circular plastic poolside table. com/shared. 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,. Field Strength Meter 3 Levels. IoIo Antenna for Satellites by Paddy, VU2PEP Antuino the Antenna Analyzer by George, VU2GT. How to Use an Antenna Analyzer • Force-12 "Ruby" 2M / 70CM SHVD - Advertised bandwidth of 1. 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. 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. 2 GHz LNA with Tunable Image Reject Filter. In the Winter Sprat 2016 article I mentioned a diary of the build that Nick G8INE had kept of our respective sweeperinos. RECEIVERS / RECEPTORES. Lightening Detector. I just happened to have a couple of AD8307 log detectors in the junk box having snapped them up at a good price a while back. The uBITX shoots to fulfill such a need. 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. Only 14 left in stock - order soon. https://oshpark. Martin Jue will discuss HF mobile with emphasis on mounting and setting up mobile antennas. Les meilleures offres pour Hambuilder HBR10HF Homebrew tous Bande HF Transceiver sont sur eBay Comparez les prix et les spécificités des produits neufs et d'occasion Pleins d'articles en livraison gratuite!. pdf), Text File (. 2m 70cm ssb transceiver. Menjual macam sparepart, pcb, modul elektronika merakit. Antenna Analyzer - F6BQU. Then modified the antenna analyzer code to incorporate the 5351 code I had written. Like homebrew electronics, we need to be able to measure and see the results of our experiments. I have been struggling to understand how my simple dipole antenna works (or doesn't work). Measurements and Tool 11:00 AM -1:00 PM (Hall 2) Tools for Amateurs by Thomas, VU3UGT How and Why of Antenna Analyzers by Shekhar, VUHMY Scalar Network Analyzer by Gurudatta, VU3GDP Spectrum Analyzer for Radio Hams, Farhan, VU2ESE. Shipments only – For International Shipments only We are pleased to act as the selling agents for the Jack Purdum (W8TEE) and Al Peter (AC8GY) add on board (µBITX JackAl), to […]. Have a look and/or listen at www. I thought I'd add some additional information on the PyDSA python-based spectrum analyzer discussed in the previous post. I even purchased a set of boards, but had not built them yet. I'll probably do a 8 or 12 element colinear. DDS VFO Versi 717 with S-Meter | HT717 Ham Radio. com/shared_projects/2HyMqY8O Futura Kit Mouse Futura Kit Mouse micromouse, see http://micromouseusa. The key factor here is the measuring part, as I need to measure the standing wave ratio (SWR) on the feed line, as this is a key parameter. In all of the following, I will assume that the balun is a 1:1 choke or current type. com main page). I started with DDS first, wrote my own software for controlling DDS. Here's a picture of the mixer:. Mike's Flight Deck is an introduction to home cockpit building, the hobby that takes off where flight simulation game software ends. 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. TEST - FS: MFJ-266 ANTENNA ANALYZER This antenna analyzer is in very nice condition showing very little use. QRPGuys is an organization of hams that offers budget and unique ham radio kits. A VNA is even handier. 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. 2m 70cm ssb transceiver. My simulations in LTSpice show a 6db insertion loss at 112Mhz as do the experimental results reported by Ashar. He also explained how the device performs the SWR meter, Power Meter and Scalar Network Analyzer functions. I mentioned this on tonight's tech net at 9 PM. Build Your Own Antenna Analyser for under $50 Beric Dunn K6BEZ. I replaced the coax a year and a half ago, but the antenna had been up so long that I was having several other problems with it. I show you how to use an MFJ 259/269 Antenna Analyzer to check your antenna for SWR and resonance. L’analyseur d’antenne en kit de fox delta est une solution efficace et low cost pour les bandes HF. in/cc3ib/g5qxz6. com/profile/16020136388879379901 noreply@blogger. This antenna covers 80 to 6 meters with low feed point impedance and will work with most radios, with or without an antenna tuner. Ron Payne, WA6YOU demonstrates how to use an antenna analyzer. Ashhar Farhan VU2ESE and designer of the µBITx has announced that he is working on a new kit – the Antuino. 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. On 50 MHz, it is a half wave (claimed 0dBd gain), on 144 MHz it is a 2 x 5/8 wave (4dBd claimed) and 432 MHz, it is 4 x 5/8 wave (6. Return Loss Bridge. 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. 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,. Most will be glad to help. 1:00 pm - 2:30 pm Lunch. 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. the test gear trifecta with VU2ESE's Sweeperino and SPECAN. I switch beetwen the bands with relays because I had a lot of. It is half the size and built like a tank. - Ashhar Farhan, VU2ESE. 5 MHz to 65 MHz, 85 to 185 MHz and 300 to 490 MHz. Hallas] on Amazon. However, the modern champion is the antenna analyzer which is a way of measuring vector impedance. Shop today!. Most will be glad to help. (une belle leçon d’électronique) De plus le logiciel conçu par Antonio I2TZK est simple et remarquablement bien réalisé. 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. A Low Budget Vector Network Analyzer for AF to UHF Professor Dr Thomas C. 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. Let's see if on my free time I can walk around the electronic market zone. No signup or install required. Testing it with the analyser and adjusting the variometer for fine tune I'm able to get a good dip at 472KHz. In a series of e-mails to the BITX20. 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. 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. The dip at 5. DDS VFO Versi 717 with S-Meter | HT717 Ham Radio. io group, Ashhar Farhan VU2ESE provided background information on the origins of his new "RF Lab in a Box' -- the Antuino. VHF Wattmeter. The original BITX was published on the Internet in the year 2003. RigExpert AA-230 Antenna Analyzer Unboxing and Initial The RigExpert AA-230 Zoom analyzer is designed for measuring SWR, return loss, cable loss, as well as other parameters of cable and antenna systems in the range of 100 kHz to 230 MHz. I highly recommend one for your lab. This easily done using the on board power connector that supplies "juice" to the IRF510. Soon I will be able to find out if my rigs have spurs or are somehow non-compliant. Return Loss Bridge with AD8307. com http://www. A comparison of several network and impedance analyzers, including the AIM4170, by Rudy Severns N6LF. (phonestack. Based on 'theladderline. 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. Notice: Use of undefined constant HTTP_USER_AGENT - assumed 'HTTP_USER_AGENT' in /home/forge/sabordefesta. The antenna analyser being a 'must have' for the shack for my antenna works and so the decision was immediately made. It discusses how to adjust your antenna, enhance your antenna analyzer and the ways certain analyzers can be used as general purpose test instruments. 40m - 20m Dual-band Transceiver - VU2ESE 100MHz Spectrum Analyzer. This is a general coverage transceiver build on the BITX platform. Martin Jue will discuss HF mobile with emphasis on mounting and setting up mobile antennas. We also invite you to visit the website HEX-BEAM SP7IDX more nice foto:. I've found a temporary home for mine in a metal box from some soap place. We are still working on this project so this document will be updated. Return Loss Bridge. Quadrifilar helix antenna Omdat LEO satellieten zo n korte omlooptijd hebben, zijn ze slechts hooguit een kwartiertje boven de horizon te zien, zie (positie is in Nieuwegein graden noorderbreedte en graden oosterlengte. and second- impedances should be matched for optimum transfer of power from transmitter to antenna. 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. 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. The antenna was originally optimised for 7. Previously I had using a homebrew ferrite rod matching unit, 10M coax and 144Mhz big wheel. It covers from 3. 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. He also explained how the device performs the SWR meter, Power Meter and Scalar Network Analyzer functions. The array is 28 ft up on a push-up mast that is rotated by hand. a W8TEE/K2ZIA antenna analyzer and have been tweaking my antenna a bit. See more ideas about Qrp, Ham Radio and Radios. The BITX40 board is this very classic now available as a fully tested board that is easy to hookup, modify and operate. (une belle leçon d’électronique) De plus le logiciel conçu par Antonio I2TZK est simple et remarquablement bien réalisé. EU1KY antenna analyzer. Antenna Analyzer - F6BQU. It could well be that your favorite band is within spec. The filter design is based on YU1LM's documentation. QRPGuys is an organization of hams that offers budget and unique ham radio kits. Radio Amator Păsări. The EDZ fits nicely. Home Specan - A reboot of the W7ZOI/K7TAU Spectrum Analyzer; Balanced Antenna Tuner My callsign is VU2ESE and my name is Farhan. 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. I've owned an MFJ-259B analyzer and it was complete junk, it was plagued with intermittent problems and a band selector switch that failed early on. Update 2014-10-05: The analyser was hooked up to the SOTA End Fed Half Wave to see how it looked. The wires from my home-brew four-wire radial kit also serve as guys for the setup. I've found a temporary home for mine in a metal box from some soap place. Youkits HB1B MK3 4 Band HF QRP transceiver #Youkits. An antenna analyzer is not necessary. This week Jeremy spends time with some of our listeners to talk about what's on THEIR workbenches. Understanding Your Antenna Analyzer [Joel R. The Liberal Gun Club Forum. VU2ESE's project link can be found here. Our selection of antenna analyzers is complete. Small 80m Antenna Articles | G7FEK st2nh Steve's Radio Page The Commo Bunker k2sz The KMØT. DDS VFO Versi 717 with S-Meter | HT717 Ham Radio. There is no note at all that you can not install this antenna on a mast. Tindie is a marketplace for maker made products. 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. However, there has also been a quiet revolution in the world of micro-computers. This week Jeremy spends time with some of our listeners to talk about what’s on THEIR workbenches. I had been following the Poor Hams Scalar Network Analyzer group on Yahoo. By shortening the antenna, the minimum moved to 14. This easily done using the on board power connector that supplies "juice" to the IRF510. However, the modern champion is the antenna analyzer which is a way of measuring vector impedance. The original BITX was published on the Internet in the year 2003. This model has everything I would need. Hambuilder HBR8HF HF transceiver full set board and parts. 3-Digits Dip Meter. Menjual macam sparepart, pcb, modul elektronika merakit. A look at a simple superhet receiver designed for CW reception. 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. https://oshpark. Have a look and/or listen at www. The Watson 2000 is a 3 band fibreglass VHF antenna. 7 MHz Transceiver - DK6SX. Benders forehead display has now been upgraded from a diminutive OLED to a generous color LCD display. On the air, my handle is Ash (as. TRANSCEIVERS / TRANSCEPTORES from qsl. Ashhar Farhan VU2ESE and designer of the µBITx has announced that he is working on a new kit - the Antuino. Admittedly I'm being picky but I was wondering if anyone had suggestions on how to improve my 112 Mhz band pass filter. Amateur radio and antennas californiakayaker N6GRG by ASHHAR FARHAN VU2ESE by shubham tiwari. The transceiver is an interesting SSB design with wide tuning range from 0-30MHz and should cover several amateur bands. The Liberal Gun Club Forum. But then, these things could set you back maybe $100 if you go for the cheapest antenna analyzer, or maybe thousands of dollars if you go for a modern VNA. Grid Dip Meter 2 MHz - 20 MHz. · Voltage Probe Antenna Preamplifier - VE7BPO · High-Dynamic Range Preamplifier - G3SBI · 1. Antenna analyzers provide many useful readings that aid in the tuning and efficiency optimization of an antenna system. I know it's not the best solution but absolutely viable. • Many antenna analyzers must be calibrated in order to produce reliable, realistic results • The operator must use the antenna analyzer properly to obtain reliable, realistic results • Improper use of an antenna analyzer can damage it, resulting in an expensive repair bill (or the purchase of a new analyzer, ouch!). The Watson 2000 is a 3 band fibreglass VHF antenna. 1MHZ-35MHZ Antenna Analyzer: AAZ-0713A. Antenna Analyzer Boards. two things, first- antenna should be tuned (resonated) for your band/freq. I have been wanting a simple Mixer Circuit for experiments in my electronics shop, and most recently for use with my Small Signal Amplifier (see previous post). 2 GHz LNA with Tunable Image Reject Filter. TRANSCEIVERS / TRANSCEPTORES from qsl. In my case, I have two antennas - an 88' Extended Double Zepp (EDZ) wire antenna and a Butternut HF9V antenna. The pics below are of it in its original state. A super fun project. 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. The 433 MHz which used the spring antenna on the previous badge has given way to a Bluetooth Low Energy. It is half the size and built like a tank. Antenna Analyzers. I have been struggling to understand how my simple dipole antenna works (or doesn't work). 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. It was an inverted vee for 40m. It could well be that your favorite band is within spec. VU2ESE's radio experiments: Home Specan - A reboot of the W7ZOI/K7TAU Spectrum Analyzer Balanced Antenna Tuner - A balanced line tuner for open wire feeders and doublet Sweeperino - A simple sweeper/signal generator/power meter for your shack A 25 watt dual-band linear - A simple sing. net is a Web site dedicated to ham radio (amateur radio). 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. (phonestack. This isn't the proper way to get maximum transfer distance (there should be no copper at all in that area), BUT: that's exactly what isn't needed here, as I plan to start the transfer by a button press on the logger. 600W Solid State Amplifier - Free download as PDF File (. the test gear trifecta with VU2ESE's Sweeperino and SPECAN. In a series of e-mails to the BITX20. TRANSCEIVERS / TRANSCEPTORES from qsl. 50KHz-900MHz Vector Network Analyzer Kit MF HF VHF UHF Antenna Analyzer dl45 Leixen VV-898 VHF/ UHF 136-174/400-470MHz Car Truck Mobile Radio + USB Cable Kenwood TM-281A VHF 136-174MHz 65 Watt Field Programmable Mobile Two Way Radio Stryker SR-94HPC 10 Meter Amateur Ham Mobile 45w Compact Slim Radio Color LCD. He also explained how the device performs the SWR meter, Power Meter and Scalar Network Analyzer functions. 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. I started with DDS first, wrote my own software for controlling DDS. Construction is the usual copper pipe with a co-axial coupling loop and a large air-gapped variable capacitor, and tuning comes via a long plastic rod that emerges as a discreet knob on the opposite side of the table. 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). RigExpert AA-230 Antenna Analyzer Unboxing and Initial The RigExpert AA-230 Zoom analyzer is designed for measuring SWR, return loss, cable loss, as well as other parameters of cable and antenna systems in the range of 100 kHz to 230 MHz. com/profile/16020136388879379901 noreply@blogger. Pete will have his shortly. S shipping will add $5, International shipping will add $15 - For U. Hallas] on Amazon. Sure, it's handy. This model has everything I would need. 50KHz-900MHz Vector Network Analyzer Kit MF HF VHF UHF Antenna Analyzer dl45 Leixen VV-898 VHF/ UHF 136-174/400-470MHz Car Truck Mobile Radio + USB Cable Kenwood TM-281A VHF 136-174MHz 65 Watt Field Programmable Mobile Two Way Radio Stryker SR-94HPC 10 Meter Amateur Ham Mobile 45w Compact Slim Radio Color LCD. Using the PC based software from Beric, it looked like I was getting valid data when connected to different resistive loads. This receiver is the result of that project. Only at eHam. W5GI Mystery Antenna is a multi-band wire antenna that performs exceptionally well even though it confounds antenna modeling software. com Blogger 68 1 25 tag:blogger. This is a general coverage transceiver build on the BITX platform. I show you how to use an MFJ 259/269 Antenna Analyzer to check your antenna for SWR and resonance. Amateur radio and antennas californiakayaker N6GRG by ASHHAR FARHAN VU2ESE by shubham tiwari. Antenna Analyzer - F6BQU. For antenna tuning you need antenna analyzer MFJ259B, GDO. A 10m feed of RG58 was used. I used a circuit attributed to Ashhar Farhan, VU2ESE and Wes Hayward W7ZOI for a Spectrum Analyzer project (Specan). Antenna Analyzers. This easily done using the on board power connector that supplies "juice" to the IRF510. SWR meter and antenna analyzer, power meter and scalar network analyzer all in one box. 5 Mhz to 30 Mhz with 10 watts power. [Ashhar Farhan]'s done it again! If you are a regular follower of these pages as well as a radio amateur, you may well have heard of [Ashhar Farhan, VU2ESE]. The Watson 2000 is a 3 band fibreglass VHF antenna. I switch beetwen the bands with relays because I had a lot of. Pre-assembled SMD µBITX JackAl board – $50 U. That makes it the most user-friendly way to test for SWR, impedance, return loss, and more. Mine is a bluetooth model. 88 MHz - 960 MHz Antenna Analyzer. Then modified the antenna analyzer code to incorporate the 5351 code I had written. It was a great antenna, it worked very well and was my "go-to" antenna for Europe on 20m. com Blogger 68 1 25 tag:blogger. [Captain Science] did a review of an inexpensive N1201SA. I just happened to have a couple of AD8307 log detectors in the junk box having snapped them up at a good price a while back. 666 MHz, caused by the reflected signal down the coax is very clearly seen. 40 MHz to 800 MHz CATV LNA. I have been wanting a simple Mixer Circuit for experiments in my electronics shop, and most recently for use with my Small Signal Amplifier (see previous post). https://oshpark. The Watson 2000 is a 3 band fibreglass VHF antenna. The transceiver is an interesting SSB design with wide tuning range from 0-30MHz and should cover several amateur bands. nor is there a note that you can only install this antenna at ground level. I had been following the Poor Hams Scalar Network Analyzer group on Yahoo. We also invite you to visit the website HEX-BEAM SP7IDX more nice foto:. a presentation on how to use an antenna analyzer includes basic principle common functions and typical usage comparing mfj 269 and palstar zm 30. Over the years, a few other instruments have tried to provide a deeper look into antenna performance. Παραλλήλισα κάποιες αντιστάσεις και πέτυχα τα 190 Ωμ. Then modified the antenna analyzer code to incorporate the 5351 code I had written. iP60z Antenna Analyzer. 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). 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. LCD Output FET Project 2. It can hook up to the Internet wirelessly, it has 3 USB ports (need one for the KX3, one for a mouse, and one for an external keyboard), provisions for adding a second VGA monitor and the standard audio ports, so I can do the digital modes, should I ever be inclined to go down that road. On 50 MHz, it is a half wave (claimed 0dBd gain), on 144 MHz it is a 2 x 5/8 wave (4dBd claimed) and 432 MHz, it is 4 x 5/8 wave (6.