Did you know?

2 m 6.7 dB3.9 o. 70 cm11.0 dB1.4 o. The Centre Frequencies for the antenna shown is 145 MHz and 435 MHz. Comparison of Far Fields for the antenna at 435 Mhz and 145 Mhz. The antenna shows an SWR less then 1.3 between 430 and 440 Mhz and less than 2:1 between 140 and 150 MHz according to the Model.I want to upgrade the stock antenna on my Baofeng uv-5r for which I mostly use the 2 meter band. The quarter wavelength for this band is about 19.2 inches, but when I look for antennas, they are typically 15.6 or 7.5, or some other seemingly random number of inches. Not to mention for 70cm, which they advertise they work for, the length is way off.Amazon.com: Diamond Antenna SRH770S Dual Band 2m 70cm Antenna with SMA-M Connector, 27.6" Long, 10W Max Power Handling : Electronics ... Build quality is very good. 73's. Read more. One person found this helpful. Helpful. Report. Ev. 5.0 out of 5 stars First one broken. Replaced and going great! Reviewed in the United States on May 10, 2020.

The articles present designs and construction techniques for inexpensive and easy to build antennas that will make perfect first projects. All articles are in Adobe PDF format. CheapYagi for 70cm - This article is intended to enable non-satellite hams to painlessly acquire the 440 MHz downlink antenna needed to actually hear and work a satellite.Authentic Genuine Nagoya NA-320A Triband HT Antenna 2M-1.25M-70CM (144-220-440Mhz) Antenna SMA-Female for BTECH and BaoFeng Radios. 17,720. 500+ bought in past month. $2098. List: $26.99. FREE delivery Tue, Apr 2 on $35 of items shipped by Amazon. Or fastest delivery Wed, Mar 27. Only 6 left in stock - order soon. Small Business.40m/20m/15m/10m/6m. Trapped Dipole. 150W/200W SSB. 13.1'. 4.3. Diamond ® Antennas are sold through authorized dealers. Contact one of your local Diamond ® Dealers for current price & availability.I need plans and specifications for this build with respect to the below frequencies. I'm not really interested in the 1/2" copper pipe build but would prefer solid round aluminum, copper stock or perhaps plated 5/8" grounding rod. Transmit Power 50W. * Receive (RX) Frequency Range: 136-174.995 MHz VHF.Features: Frequency range 144-148mhz / 440-450mhz Handles up to 100 Watts! Base Antenna performance. Sealed from the weather. Quality connectors. High quality RG-58 cabling. Durable Ladder wire construction (not tv ribbon cable) Dual band versions Feature Trapped UHF section for proper band alignment. Ferrite choke balun installed on cable.

The 2-m/70-cm combination presents a different challenge because the frequency ratio is about 3:1. Consider two dipoles, cut for 20 and 10 meters. We can easily use both dipoles with a common feedpoint. The reason is fairly simple: when one dipole shows a low impedance, the other shows a high impedance.7 Nov 2019 ... First up is this dual-band (2m, 70cm) "Arrow" style "satellite" antenna. While it's meant for using for AmSat contacts, it can be modified fo...Attach your homemade antenna to the SWR meter's antenna port. Select a transmitter power setting of no more than 5 W. Choose a simplex frequency of 146.0 MHz and check the antenna's SWR and field strength. Adjust the field-strength meter's location and its antenna for a mid-scale reading. (Now's a good time to commit adjacent radio ….

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. 2m 70cm antenna diy. Possible cause: Not clear 2m 70cm antenna diy.

=====More information on my website at http://www.fuzzthepiguy.tech=====Here are the measurem...Re: Homebrew 2m, 70cm mobile antenna. by knight » 11 Feb 2010, 17:17. First the photo is a heldhold mobile radio and the antenna is for a mobile radio. I am trying to build a antenna for the roof of a car which I did say a mobile car antenna for the roof of a car not heldhold. knight.

Dualband Antenna's. 2×4 2m/70cm Compact Satt Comm Antenna; 2×3 2m/70cm Cross Yagi - compact build; Build 3 x 5 2m/70cm Cross Yagi 145-435Mhz; Build the 3 x 5 Elements 2m/70cm Yagi; VHF antenna's. 2 Elements Yagi 144Mhz; 7 Elements Yagi for 146Mhz band build; 2 Elements Yagi build for 107Mhz FM Band; Build the 5 Elements 2m VHF YagiN6TWW. 2 Meter Halo Antenna project by Mike Fedler with many detailed pictues and detailes homebrewing instructions so you can build your own. This is a series of videos showing how to build an Omni directional horizontally polarized antenna for 2 meter single side band operation. This antenna is called a 'Halo Antenna' due to its circular shape.Dualband Antenna's. 2×4 2m/70cm Compact Satt Comm Antenna; 2×3 2m/70cm Cross Yagi - compact build; Build 3 x 5 2m/70cm Cross Yagi 145-435Mhz; Build the 3 x 5 Elements 2m/70cm Yagi; VHF antenna's. 2 Elements Yagi 144Mhz; 7 Elements Yagi for 146Mhz band build; 2 Elements Yagi build for 107Mhz FM Band; Build the 5 Elements 2m VHF Yagi

autozone toledo If we look at the antenna as a 70cm antenna (435MHz), it will be completely different. Here, the piece with an unremovared plastic cover does resonate at about 435MHz. The 2m half wave element is then divided into 3, and the upper and lower part will also resonate at 70cm. These are then each half a wave at 70cm. In this way we get in principle ... chihuahua rescue austinroen and kyle horn Homebrew a j-pole 2mt and 70 cm antenna project. Make it cheap. This article includes homebrewing instructions, parts lists, tools needed and printable documentation. ... Homemade 2M/440 J-Pole Antenna; A 2m 70cm Dual Band J-Pole antenna for 35 USD. An excellent performing J-Pole type antenna, constructed from readily available materials. foxesareamazing 99 This time, Dave uses common materials from around the house and workshop to design, build, and use a simple 2 Meter Yagi Antenna made from metal coat hangers. Since metal hangers are getting rare these days, you can use brass rods, copper wire, or even the old aluminum elements from an outdoor television antenna.I build a dual band vertical dipole without a choke expecting it won't work and am surprised that it works just as well as the one with a choke.The lengths, ... why does my nest thermostat keep going offlineonlinewagestatements cracker barrelmadi baggett wsoc Cushcraft 2M/70cm Wideband Yagi Beam Antennas. Antenna, Yagi Beam, 2 Meter/70 cm Wideband, 10 Element, 6.10 ft. Boom Length, 350 W Power Rating, Each See More Specifications. Cushcraft 2M/70cm Wideband Yagi Beam Antennas A27010S CSH-A27010S. 3.75 out of 5 stars. Part Number: CSH-A27010S. Estimated Ship Date: Today.Getting radio frequency can be tricky if you live far from a radio tower. If you're having trouble hearing your favorite stations, consider getting an FM antenna so you can get tho... cocoon dweller crossword clue Sep 24, 2020 · This time I found an old fence wire, a piece of wood, and decided to make a yagi antenna. I already made an antenna like this a few years ago. Very simple. T... u pull and pay indianapolis used carsthe iron claw showtimes near midway 9 theatre866 613 6856 An RF choke can save the day for field radio operations where you do not necessarily control all aspects of your antenna system and common-mode currents can wreck havoc on electronics, and even your fingers! Use an FT-114-31 with six turns of RG-174 or RG-316. You can also use eight turns with an FT-140-43. For more power …I want to upgrade the stock antenna on my Baofeng uv-5r for which I mostly use the 2 meter band. The quarter wavelength for this band is about 19.2 inches, but when I look for antennas, they are typically 15.6 or 7.5, or some other seemingly random number of inches. Not to mention for 70cm, which they advertise they work for, the length is way off.