Big Savings on Electronics. Free 2-Day Shipping with Amazon Prime A 2-Meter Vertical Dipole Array Build this 2 or 4-Element VHF repeater antenna with up to 9.7 dBi gain and 18° Vertical Beamwidth. ost commercial 2-meter repeater antennas with gain fall into two categories: collinear arrays and stacked element arrays, with gains ranging from 3 to 9 dB1. The higher gain antennas have a lower vertical beamwidth
The application for this antenna is in a 1.25M to 2M crossband repeater setup. I use it while mobile to talk with my buddies who are too far away for me to work from my vehicles. And, I have had a few months experience with the shorter antenna and know where many of the weak and strong spots are in the area Comet GP-3 Dual-Band VHF/UHF Base Vertical Antennas. Comet GP-3 Dual-Band VHF/UHF Base Vertical Antennas provide very good gain on the 2-meter and. Repeater Systems. Repeaters increase two way radio coverage by acting as a go between between 2 radio operators. If you want to cover your 100,000 acre ranch, your city, county or even your entire state you're going to need a repeater system. If you need help choosing the right two way radio please visit our two way radio tutorial
This N6NA 2 meter repeater transmitter coverage map shows estimated field strengths to an isotropic antenna 10 feet above ground based on the N6NA repeater 800 watt effective radiated transmitter power, 2000' ASL antenna elevation and terrain topography The antenna will be on top of tower. I have two antenna choices: The DB420 and a DB413 Which would be best? The DB413 has a offset pattern. This would be fine as I want more coverage West. as I have my other repeater that has coverage East. The DB420 has a gain of 9.2 with 16 folded dipoles. The DB413 has a gain of 12.4 with 8 folded dipoles tram 1400 2 meter vhf base repeater antenna covers 136 mhz through 174 mhz, 6 db gain covers the vhf ham band. the murs band (multi use radio service) great home base antenna for volunteer police or fire department personnel great for band business base and or repeater operation easy to break down and setup with basic hand tools will easily break down and fit in an jump kit bag features. Diamond CP22E VHF 144-148MHz 2 Meter Base / Repeater Antenna 6.5dBi Gain. 4.5 out of 5 stars. (15) 15 product ratings - Diamond CP22E VHF 144-148MHz 2 Meter Base / Repeater Antenna 6.5dBi Gain. $89.95. Only 3 left . Normally a well made duplexer will isolate the Tx noise and desense from the Rx, making a clean repeater. The matching stub for the Station Master is made up of three dissimilar metals
there was a simple way to convert a 2 meter J-pole into a dual band J-pole DBJ-2 was developed from the successful performance of the DBJ-1 but folks requested a portable version. DBJ-UHF was developed from a grant from AC Daughty to develop a low cost medium gain MESH antenna for UHF. 220 MHz not only has repeaters but has become Repeaters as close as 25 miles proved unreachable. Determined as I am, I began reading and researching 2 meter directional antennas, hoping to find something that might provide the performance necessary to connect with hams downstate
A typical use for me is when I am out hiking in the mountains and I either want to hit one of the 2 Meter repeaters or make a simplex contact. Recently, I started using this antenna for Summits On The Air (SOTA) operation. The extra gain from this antenna really helps when out in the backcountry — on both transmit and receive 2 Meter/70cm Dual Band FM Handheld - Compact, Light and Very Rugged. View Buy. Eton Elite 750 AM / FM Stereo / Shortwave / Longwave / Aircraft Band Desktop Radio with SSB. View Buy. ALINCO DJ-MD5XT Dual Band DMR 5W Part 90 Color LCD With GPS. View Buy. YAESU FT-3DR 2m/70cm Dual-Band 5 Watt C4FM/FDMA Digital Touch Screen Transceiver
2 Meter Whip Dipole Antenna By Jose B Rivera - N2LRB. February 8, 2015 - My quest to make a reliable 2 Meter dipole antenna for use on 144.200 mhz on single sideband took a few months. I purchased wire versions of a two meter dipole from Falcon Antenna on Amazon in May of 2014. The antennas are come with a center connector piece which has an SO. Do not assume that antenna separation alone will provide a good performing repeater unless you run split site. If done properly, the separation is additive. As long as you don't have one antenna in the major lobe of the other you could add a 50 dB of vertical isolation and 15 dB of horizontal and get 65 dB total Often with VHF line-of-sight communications via simplex or duplex with repeater, high gain for the antenna is not a critical factor. However, if you are using weak-signal comms (SSB, CW, data) then having a high-gain antenna is almost a necessity. This is the reason you will see high-gain 2-meter Yagi antennas ISS & Satellites on 2 Meters. Listening to the International Space Station (ISS) and satellites in orbit with a focus on radio signals in the amateur radio 2 meter band comprising frequencies from 144.000 MHz to 148.000 MHz. The satellite radio signals are classified into two groups: voice and data tranmissions
Well a 6 meter repeater, for same antenna height, gain and EIRP will yield better coverage than a 2 meter repeater. In addition, the lower frequency range of 6 meters will allow much deeper coverage into fringe areas. This is of special interest when one is mobile. As was mentioned above, using 6 meters is somewhat different that 2 meters GEORGIA Appalachian Trail 2 meter repeaters (S->N) by N1MJD v1.2 Town Frequency Callsign Notes/Repeater Location Gainesville (approach) 146.670- W4ABP Tone 131.8,ca,POL, AMTRAK & Bus Depots SE of Springer Mt Waleska (approach) 145.270- KE4PN I-575 & Rte 5/515 to AT SW of Springer MT Jasper (approach) 146.700- W4OOM Rte 5/515 to AT Springer 145. The next thing I thought about was improving the antenna. 2-meter yagi beam antennas are very reasonably priced, and I found the Diamond A144S10 Base Station Yagi Beam Antenna for under $95.00. It has 11.6 dBi gain, so should work well. A144S10 Base Station Yagi Beam
Is your Ham Radio HT rubber ducky letting you down? Do you want to transmit a stronger signal to the repeaters? If so, I'll show you how to build a two meter.. I ran a pair if 17 element yagi's stacked for 2 meter SSB in the 90's. It worked well but was a pain to install, I had them mounted on an 80' Rohn crank-up tower (antenna's were easily at 100' with mast). Talking to someone 3 or 4 hundred miles was easy on 25 watts and when 2 meter opened most of the US was possible A durable 2 meter, 3 element Yagi antenna built with PVC pipe and window line. I wanted to build a 2 meter Yagi antenna so I could start playing around on 2 meter SSB and CW. Initially, I considered the tape measure Yagi. For FM and repeaters higher up in the band, the orientation should be vertical How To Build A 2 Meter Vertical Antenna. To calculate the length of the antenna's vertical element, use the following formula: Where F= 146 mHz. If you want your 2 meter antenna to resonate at a different frequency, then use the above formula accordingly. For me the length I want is 19.25″ so I make the vertical element a bit longer
Program your radio carefully: 10m Repeater - Output: 29.64 MHz, PL 94.8 - Input: 29.54 MHz, PL 94.8. 6m Repeater - Output: 53.67 MHz, PL 103.5 - Input: 52.67 MHz, PL 103.5. If your radio supports it, you can activate tone squelch on receive to keep the squelch from opening on noise 2 Meter Repeater RX 146.490 / TX 147.090 (-) PL Open. On July 28,2012 the new 147.090 repeater was launched. For months the temporary repeater was tested at it's new location off of Hwy 11 in Floyd county. The new repeater is a commercially built Vertex 7000 rated for 50 watts 100 percent duty cycle VHF 144-174 MHz Antenna NMO Type 5/8 Wave 3db High Gain VHF 2 Meter Tram 1150. 5 out of 5 stars. (11) 11 product ratings - VHF 144-174 MHz Antenna NMO Type 5/8 Wave 3db High Gain VHF 2 Meter Tram 1150. C $37.09. C $25.89 shipping. 597 sold Recently the RASON technical committee was hard at work at the repeater site repairing our 2 meter repeater antenna. One of the members commented to me that I should write an article about collinear arrays so that we could all build our own. While it is not always feasible to home-brew a commercial quality antenna designed to take hurricane force winds, it is very feasible to built a collinear. Used 2 Meter Ham Radio Antenna, Commercial Repeater Grade. -. $200. Used Ham Radio 2-Meter High Gain Omni Antenna... Commercial Repeater Grade This antenna shown in 3 sections as it is disassembled for transport because when assembled it is over 21 feet long. When new it cost Over $375.00 New.!!! $200.00 Cash Sale Only
Yes, this is a horizontally polarized repeater, and using vertical antennas will reduce your range. But, a polarity mismatch theoretically reduces your range in BOTH directions equally. When it comes to hearing the repeater but not being able to work it, I don't think this is a significant factor. Repeater sensitivity Looking For Great Deals On 2 Meter Antenna? From Everything To The Very Thing The Blade can also be used as a travel antenna, or even outdoors for short periods of time. Note: Low power is recommended indoors for health reasons. Tuned to 2 Meter Ham Band: Each antenna is tuned to the 2 Meter Ham Band centered at 146 MHz. Ready Made: There's no assembly necessary and 18 feet of coax (with BNC or UHF connector) is included
Well, all the repeaters and mobiles and most bases on 2-meters are vertical polarization. Horizontal is only used (on 2m) for ssb/cw on the low end of the band, very little activity there (virtually none). You'll lose a lot of signal if you run a 2 meter antenna horizontal. On HF it doesn't matter so much but on 2-meters it does Description. OSJ 146/440. Dual Band - 2 Meters & 70 cm - Solid Aluminum - End Fed (SO239 Connector Only) OSJ 220. 220 MHz. End Fed (SO239 Connector Only) OSJ - VHF. Wide Band Width (150 - 162 MHz.) Solid Aluminum - End Fed (SO239 Connector Only Antenna projects for 144 MHz category is a curation of 151 web resources on , The Tiny 3, Magnetic Loop for the 2m band, Simple VHF Antenna. Resources listed under Antenna for 2 meters category belongs to Antennas main collection, and get reviewed and rated by amateur radio operators N5MBM 2 meter Backyard Repeater repeater history. Back in the 1990's, while living in Katy, TX, in the same repeater hut as the ATV repeater, I had my backyard 2 meter backyard repeater, running 25 watts complete with an open autopatch. Cabled with 1/2 inch hard line to a 5/8 wave omni antenna on the tower at 65 feet 146.925MHz - W4GZX 2-meter repeater. The antenna is located atop the tower behind our clubhouse. To access this machine, use a negative (-) offset and a PL tone of 114.8Hz. This is a local repeater covering Cleveland and much of Bradley County. This machine can also be found on Echolink as W4GZX-R. 444.275MHz - This is the W4GZX 440.
Two Repeaters One Antenna Feed Line. We had an opportunity recently to provide a unique duplexer system. The customer needed a single antenna feed line for two repeaters. This solution saved the customer two costs. One, the expense of hiring a tower climber. Also the recurring cost of additional tower space rental for a 2nd feed line and. The 2 meter repeater has an input on 147.75 MHz with an output on 147.15 MHz. PL-tone of 88.5 is required. The 440 MHz repeater has an input on 449.15 MHz and an output on 444.15 MHz. PL-tone of 88.5 is required, as Yaesu System Fusion is available. We also run a APRS digi-peater service on 144.390 The repeater has a 2 meter uplink and a 70 centimeter downlink. While you can use a garden variety dual-band ham transceiver to use the repeater, you'll probably need a special antenna along.
Mississippi amateur radio repeater database for ham repeaters
These improvements come at a price, however: 6 meter antennas are quite a bit larger than their 2 meter counterparts. 6 meter operation is also more likely to cause TVI (Television Interference) than either 2 meters or 70 cm (especially to channel 2.) 6 meters is also more likely to be affected by powerline noise than 2 meters on receive A Five-Element Quad Antenna for 2 Meters By Jim Reynante, KD6GLFPO Box 27856San Diego, CA 92198 If your station is located on the fringe of the repeater's coverage area, you've come to the right place photo credit: survivalistblog This is a fun, almost novice-level construction project for anyone who has a 2-meter ham radio walkie talkie (e.g., the $26 BaoFeng UV5R) and would like more effective range without having to buy an amplifier. If you are currently using a short rubber-duckie antenna, this high-gain yagi antenna may well make your radio appear to have 6-10 times its power on 2. 2. When cutting the 1/2″ copper tubing, cut the 57-1/2″ piece from one end of the 10″ length, and the 38″ piece from the other end. By doing this you will have factory-cut edges for inserting the 1/2″ dowel. 3. Be sure to keep the flame of the torch away from the insulator to avoid burning it. 4
Posted on Wednesday, June 22, 2011 - 9:17 am: The Diamond X510HDM was designed for strength and performance and is pre-tuned to achieve maximum gain in both the 2m and 70cm amateur bands. (2m: 3 x 5/8 and 70cm: 8 x 5/8). It has a 3 section fiberglass radome with overlapping outer shells for added strength. It comes with stainless steel mounting. 2 Tilston, Simultaneous Transmission and Reception with a Common Antenna, IEEE Transactions on Vehicular Communications, August, 1962. 3 0'Brien, Improving the Fm Repeater Transmitter for Amateur Use, Ham Radio, October, 1969. 4 Epp, Plain Talk About Repeater Problems, Ham Radio, March, 1971. 5 Tilton, A Trap Filter Duplexer for 2-Meter
The Antenna Farm : UHF/70cm Omni Directional - VHF & UHF Mobile Radios Radio Accessories VHF & UHF Hand Held Radios Antennas Mobile Antenna Mounts SWR/Power Meters Adapters Coaxial Cable Two Way Accessories Antenna Accessories DC Power Supplies Coax Cable Accessories Amplifiers Connectors Aviation Radios Repeater Systems Towers & Accessories Scanners & Receivers Duplexers Diplexers. from the repeaters RX antenna, then you will need at least 42 db of amplifier gain in your repeater. If the two antennas at you repeater have a front to back ratio of 25 db each and they are aimed close to 180 degrees from each other it will work but you will need a couple of wavelengths. between their backs Repeaters recommended for use by nearby highway. Repeaters by nearest city/town. Repeaters updated recently (days) Last 7 days (0) Last 30 days (0) Last 6 months (0) Last Year (0) Repeaters needing re-verification. Not updated in the past two years: Unknown operational status 144.60-144.90 FM repeater inputs 144.90-145.10 Weak signal and FM simplex (145.01,03,05,07,09 are widely used for packet) 145.10-145.20 Linear translator outputs 145.20-145.50 FM repeater outputs 145.50-145.80 Miscellaneous and experimental modes 145.80-146.00 OSCAR subband 146.01-146.37 Repeater inputs 146.40-146.58 Simple The antennas for the 2-meter FM (146.970- MHz, CTSS 100.0) and one of the 70-cm FM (442.200+ MHz, CTSS 100.0) repeaters are both located on the Prince William County Service Authority's water Bull Run storage tank located at Mt. Pone, Prince William County
This repeater now has IRLP Node 2088 operating on it, which will be available on all the repeater frequencies. The frequency and tone details are as follows: The 2m frequency is 146.805 (-) with a 203.5 hertz tone; The 6m Frequency is 53.130 (-) with a 203.5 hertz tone; and. The 70 cm frequency is 434.800 simplex with a 203.5 hertz tone DualBand 2M/440MHz base antenna Small profile, good gain, excellent constructionour best selling dual-band base antenna. Gain: 2M: 4.5dBi 440MHz: 7.2dBi VSWR: 1.5:1 or less Max Power: 200 watts SSB/100W FM Length: 5′ 11″ Weight: 2 lbs. 12 oz. Mounting Mast Dia: 1.25 - 2.50″ Connector: SO-239 Construction: Heavy-duty fiberglass Mount pipe acts as shroud to protect the antenna/coax.
Los Banos: 107.2 Hz PL Atwater: 114.8 Hz PL Fresno: 118.8 Hz PL. Turlock. In the city of Turlock TARC has a VHF repeater, remote receiver, as well as a 2 Meter/440 remote base. Under normal circumstances the Turlock system is configured as a remote receiver. When it is configured this way it is only mono-directional, 2 Meters input only
So, the repeater runs about 100+ watts to Antenna. I get 140db + of isolation using only the 4 to 6 duplexer cavities (cans). 2 cavities are homebrew by Cliff H. and Larry WB4NKM. The Two I made are made from Duct work (fyi dont do it, lean training learning, I was doing) Club Repeaters. The Anoka County Radio Club hosts a wide-area 2-meter repeater on 146.670 MHz . It has an input CTCSS/PL tone of 114.8 Hz. The input frequency is 146.070. It transmits off of the Blaine water tower on Paul Parkway with an ERP of about 350 watts. The antenna is about 180 feet above the ground
The compact 5.6 ft. height makes the Diamond Antenna X50A dual-band base/repeater antennas easy to mount anywhere. The light weight makes handling it while mounting a one man job. The Diamond X50 will satisfy every user with it's lightweight and performance. The 4.5 db gain (3-1/4 wave) on 2 meters and the 7.2 db gain (3-5/8 wave) on 70 cm. that sponsors a closed repeater, contact the repeater control operator. Finding a Repeater Most communities in the United States are served by repeaters. While the majority of repeaters (over 6000) are on 2 meters, there are more than 1600 repeaters on 222 MHz, more than 5000 on 440 MHz, over 70 on 902 MHz and more than 200 on 1270 MHz AG6IF BUILT 3DFL, 2 METER FULL WAVE HAM RADIO ANTENNA, WORKS ON 440 70CM ALSO. You are looking at a AG6IF built 2 meter ham radio antenna. 3 dimensional folded Full wave loop design. Rugged and solid with soldered copper connections. Being a full wave loop, Ground losses are minimized and this antenna works very well when close to the ground OFC sleeve dipoles have long been used as marine HF antennas, and more recently, are widely used in small UHF wireless consumer devices. This dipole was constructed as follows. Cut 7 feet of ½″ CPVC. Drill 7/32nds holes at 22-¼ and 58 inches from the top of the CPVC pipe. Cut upper element tape (2 wide aluminum duct tape) at 22-1/8th.
My efforts to build a homemade HAM repeater. March 13, 2016 November 4, 2014. by John Rourke. Alright - here is what I have been trying to do. If reading through this you get confused - well, now you know how I feel. The video below describes exactly what I have done to my four Baofeng UV-5R 2 meter Ham radio's The 15dBi parabolic antenna increases speed and reduces interference from other WiFi networks, and is connected to the repeater by a 30′ USB cable. The Vector will support up to 150 Mbps on an 802.11n network, and the repeater has two Ethernet ports to connect another router or a PC
TRAM UHF BASE STATION REPEATER ANTENNA HAM GMRS 5 dB GAIN. Regular price: $63.99. Sale price: $51.00. TRAM 1400 VHF 2 METER BASE STATION ANTENNA. MURS FIRE MARINE. Regular price: $62.99. Sale price: $51.00. TRAM 1494 220 MHz 1.25 CM VHF BASE STATION ANTENNA 220 - 350 MHz. Regular price: $82.99 On each 2 meter repeater, we have 75 watt Power Amplifiers installed. We used attenuators on all of the 2 meter repeaters as well to get rid of any desense on the inputs. Most of the repeaters have Advance Receiver Gassfet preamps installed. Our Power Supplies are Samlex 1235M 30 Amp switching power supplies Sorry, we have detected unusual traffic from your network. Loading. Feedback I * APRS Wide digi on 2 Meters * Dual Band vertical antenna for APRS at 50′ * This is all on the 40 odd foot steel Wind Mill Tower. Two Meter Valley Repeater (145.490 / 144.890 PL 167.9) (Click Here To View Coverage Map) * A Pair of Yaesu FT-7800R running about 35 watts output * S-COM 5K Controler. Click Here for a List of other Local. CommScope DB408-B 450-470 MHz Folded Dipole Antenna 8.7dBi Gain. Regular price. $1,049.99. View. CommScope DB404-B 450-470 MHz Folded Dipole Antenna 5dBi Gain. Regular price. $499.99. View. Andrew / Decibel Antenna Side Mount Kit