Two antennas one scanner. You can easily run multiple scanners off of one antenna.

Two antennas one scanner What they really mean is that the additional loss over and above SP-1300 splitter can be used with HF and VHF receivers and scanners as well as in other receive and measuring applications where a need to combine or split RF signals exists. I've had excellent luck with designs based on the OCF dipole scanner antenna presented on the RR Wicki: Homebrewed Off-Center Fed Dipole - The RadioReference Wiki I've made several versions. com Reactions: TFerg53. So one antenna is pointing south, one north. Using 3 Antennas with One Scanner. DJI won't sell you anything other than that 2 into 1 antenna. In this session, we discuss: The difference between diplexers and duplexers; With the SP-1300 Combiner/splitter and jumper coax cable (sold separately) you can hook up two scanners to one antenna with minimal signal loss. 2. Or would the best solution be to have two BLE modules, one responsible for scanning for beacons and the other one responsible for retransmitting the advertisements, with a communication link between them on a PCB? The TRAM 1094-BNC Scanner 3 1/2" Magnet Antenna is a very inexpensive mobile scanner antenna that works well for the price. K. 5dB typical. I don't remember reading about a phased array in his post. One is fed by the phased array without the feeding network, and the experimental results show that the scanning transmitarray obtains continuous beam scanning within ±35° with the peak radiation gain of 22. Combining them gets really tricky. A 1-in/3-out will typically lose 3 dB on 1 output and 6 dB on the other two since one of the splits is split If you don't want to go for a full blown multi-coupler but want something better than a catv splitter, for 2 scanners and 1 antenna, Scannermaster has this for 50 bucks and claims no signal loss. Modified 2 years, 9 months ago. No, both antenna are for sperate scanners. 15 years, no issue Yes, it's 2007 vintage car. Generally speaking, a diplexer is used to connect a single radio to two antennas of different bands, or two radios on different bands to a single antenna. Jul 19, 2008 #12 And one antenna feeding a two port combiner, that feeds two radios. So how does one safely attach 2 transceivers and 1 receiver to a single antenna? two separated antennas give you two different signal patterns, which can help if one antenna gets out of an ideal alignment. If you're mainly listening to trunking systems at 700 and 800 MHz, then this is the antenna for you! The 1/2 wavelength "dipole" antenna provides an outstanding 2. A combiner may be built or purchased, but you really need to consider what you hope to accomplish by combining the two antennas. 86 out of 5 stars. The highly-regarded Scanner Beam now has higher gain. Does this work well or would having more than one antenna connected to a scanner some how create a You can easily run multiple scanners off of one antenna. ILSAPP Member. Only one radio at a time can use the antenna, but then you’re guaranteed that you won’t backfeed RF energy into It's a passive resistive power splitter and as such it will divide the power captured from the aerial two ways. zz0468 QRT. Aug 11, 2024 #3 I'd like to ask for your advice regarding mounting two antennas on the same mast. One option is a power divider/combiner with the two radios connected to ports 1 and 2, and then the antenna on port S. Tune to SWR of 1:1. Any one with who you can combine two antennas to one. Start cheap with a $10-$20 solution and use the $200 one as a last resort. I used a tri-plexer to split a tri-band 1) Combine the (RadioShack Model: 20-176) Outdoor VHF-Hi/UHF Scanner Antenna - RadioShack. Having an antenna too close to a transmitting antenna can throw the radiation pattern off, making the TX antenna slightly directional. 9% of two way radio failure is due to either the antenna being improper (meaning it's not made for the frequency used) or the antenna has not been tuned properly to accommodate the transmitting frequency. That would be insane. This amplifier will combine two UHF and one VHF antenna, so I’m not sure it would work in this specific case. Read several different methods. g. Then you could need that recommended $10 CATV splitter that often use F connectors so you will need adaptors or pigtails to use it. Scanning multiple lines using single scanner object. Premium Subscriber. It's almost always cheaper to use two separate antennas. 7 x 0. In other words, it can make reception worse. Contecting two Antennas to one scanner. If the antenna is 2 feet tall, put a 2-foot gap between the two antennas. Diamond Antenna Dual-Band HT Antennas are a quality and cost-effective solution. The gain of the 5/8 wave vertical antenna is achieved by the change of pattern that brings down more of the radiation to a lower angle Just wondering is it possible to feed multiple antennas to one sdr? I would like to build a few antennas, iv already built a dipole one for airband, it covers the 2 meter and 70cm band pretty well. Ask Question Asked 10 years, 9 months ago. Amplifier. The proposed antenna comprises only two layers that are conducive to the antenna system's compactness. Banned. SMASCAN : Length 310mm For Scanning 70MHz ~ 85MHz 118MHz~ 136MHz The rear radio is used for Command at MCI's, etc. I have five antennas on the roof of my RAV4 (small SUV), two more on the hood. Gaming. Magnetic base antenna with dual capacitor charge, total antenna size 64 cm. Internet Culture (Viral) Amazing; I have another configuration now with one omni-directional antenna. 3Ghz video. Estimated Ship There are two issues: connecting it to the radio, and the effect on reception. J-Mount 2 foot mast for police scanner antennas. These active devices often introduce a little extra gain. n1chu That is a simplification of the antenna theory at play here, but the short and sweet of it is that a single antenna can receive signals on one or more frequencies. ANTENNA 1 is for 1040-1090 (Mode2/ADS-B), ANTENNA 2 is for 118-136 (Airband). 11n / MIMO). These two linked below get a lot Scan this QR code to download the app now. Still waiting on cables but the final build will hold a 144/433 to connect with to a UV5-R, a 2. Like one antenna could be for 800 MHz, another 2 meters and another 70 cm. So, if you make a quarter wave antenna that is tuned to the 2m band it will perform like a 3/4 wave 70cm antenna with a slightly altered radiation pattern. Radar Systems Course 7 Antennas Part 1 1/1/2010 IEEE New Hampshire Section IEEE AES Society Tree of Antenna Types 1 ACCURATE ANTENNA GAIN ESTIMATION USING THE TWO-ANTENNA METHOD Keyur K Mistry1*, Pavlos I Lazaridis1, Zaharias D Zaharis2, Mobayode O. Can I I'm looking to mount ~3 antennas on a single pole, due to space constraints. 4 Ghz antenna right in the middle of them at 17" from both of the antennas, is that 2. A better way would be to use an active pre-amp on both scanners, right before the radio. We are getting an 800 radio installed in the next few weeks and it will have it's own antenna. The hassle of removing two antennas instead of one seems trivial compared to the cost and possible drawbacks of a single antenna system. 4/5. If one would use a splitter, and ran separate coax's to each scanner - could one run 2, maybe 3 scanners off of 1 outside antenna? I assumed since they were receiving, and NOT transmitting, a signal that should not be a problem - correct? And if one could, and did, do that - would it reduce A filter is a tool to either block unwanted frequencies from reaching your scanner or only allowing a certain range of frequencies to pass to your receiver. But reception on other bands will suffer. Z. and the tower in question is located only about 6-10 miles away. It's best to set this type of antenna (sleeve dipole) at right angle to the direction of the signal source, so that the signal hits the "broad side". 15 in. dont confuse horizontal and vertical planes with polarizations, the 5/8th wave antenna will have more gain on vertical polarized signals than the 1/4th wavelength vertical will but the vertical antenna has a higher angle of radiation. Donate to Turbine Guy - Patreon: https://www. When mobile, made a great difference in recewption. Joined Apr 27, 2009 I have a particular challenge receiving P25 signals via the Discone antenna off of one particular tower in my area, frequency range 773 Mhz. So the only reason for the VHF antenna is really my scanners at this point. N. If you simply connect two antennas in parallel, the math is just like connecting two resistors in parallel: the impedance is halved. Will having However, if you really want to align the antenna to the router, DON'T point the "tip" of the antenna towards the router. Since the antenna only has resonators and coupling structures, the What second antenna I should put? The standard one or just dont use the second antenna at all. Before we get started please remember one important thing: 99. All Mobile One scanner antennas are designed to work on any scanner covering the range of 25MHz to 1300MHZ, not all scanner antennas are the same, they have different properties emphasizing specific frequenciesor bands. Or check it out in the app stores     TOPICS. If it's just one specific frequency, or a narrow band of frequencies, you can do tuned lengths of coaxial cable to combine them, but it's not simple. For many people most of the radio traffic they wish to monitor is at 800 MHz and therefore they sacrifice reception I am considering changing the antenna array on my car from mag mounts (two anntenna - one 800 and one VHF/UHF) to 3 low-profile lip-mounts - one 800, one RadioReference. The selector switch on those indoor "Rabbit Ears" is some type of capacitive or inductive variation to, just as you guessed, caused the antenna to functionally have a favorable standing wave ratio to create a favorable match to frequency. 99 $ 13. $13. I listen to all ranges but mostly VHF high and 800. 15,75 € 14,58 € Reference: DIAMOND-SRH701-112. 4 Ghz radio in danger from the two 2M radios on either side of it? I'm building my base station using a BTech 50w mobile unit. Then install the Co-phase 75ohm coax to antennas. Feed the base stations gps to the tracker on the UAV and the UAV to the basestation. Just because two antennas can co-exist on the same plane, doesn’t mean that they should. Joined I have a 20' x 2 1/2" gal pipe cemented into the ground along the side of the house. Those two antennas on one end, but one radio on the other, or one cable you move between radios, would be fine though right? Uniden’s new BCD260DN offers two digital modes for those who don’t need a high-end scanner. The latter might be problematic enough that using two receivers is actually a better option. Generally, if you need multiple antennas for reasons such as covering different bands, you can either use an antenna switch or a device to properly combine the antennas commonly known as a diplexer and/or triplexer Scan this QR code to download the app now. Can he connect multiple scanners to one antenna, yes he can with a multicoupler. Scanner Antenna for HomePatrol-1 and HomePatrol-2 Scanner Antenna for HomePatrol-1 and HomePatrol-2 Regular price $19. I finally found what I was looking for and at a reasonable price. Are 2 cb radio antennas really better than 1 cb radio antenna? How far apart do your antennas have to be? What type of coax do I need? I answe 2 Antennas one scanner with a twist. 4. 76 dBi and the scan loss of 1. Joined Feb 6, 2007 Messages 6,034. Feed two antennas into one splitter/combiner and then feed its output to one of the two ports on a second signal splitter combiner. If you have recently invested in a new scanner or receiver, then these antennas are perfect for you! A serial feed 2-D beam-scanning CTS antenna that is based on a single-layer compact LSG is presented in this study. woobs420 Member. So transmitting 50 watts on Co-Phasing. What is the best/easiest way to tune. Amazon. Also since I only fly under 100 m radius (around 50-70 m), I will use omnidirectional antenna only. I need to combine output from two antennas to send it down through approx. 4 GHz band signals, such as Bluetooth, Zigbee and Wi-Fi, enabling a single coaxial cable to carry both signals, or permitting the use of a single wideband or multi-function antenna capable of Anyway, here is the situation. If you are listening only to 700/800 MHz, get a short 1/4 wave whip for the scanner. I plan to use a 18ft mast and I want to place in it a 11 element Yagi 1296MHz antenna (will be used as RX only) as well as a Diamond X-50 BUT, keep in mind that with each split you will lose half of the signal unless it employs a preamplifier as well. Co-phasing or “stacking” has long been a way to get high gain from antennas. Mount it high and in the clear for fullspectrum VHF/UHF frequency coverage from 30-1000 MHz! Hear law enforcement agencies, firefighters, emergency medical teams, aircraft, marine radio, trains, FM and TV broadcasting, business band, federal agencies and up to 75 miles away (depending on Can two receive only antennas positioned close to one another cause degraded reception? In the extreme case, picture two yagis oriented at 90 degrees to each other with the beam of one nestled between the elements of the other. So there are 2 antennas transmitting identical signals with identical frequency content. Type: Capacitor Multicouplers are devices that take 1 antenna input, and split it across multiple outputs with very little loss. I have a 8 element yagi for 800 I will use, but that leaves vhf out. Then adjust 2nd antenna the same way. I am not close enough to monitor a public service 800 trunked system with a discone. It is fair to good on 800MHz. You don’t need a TV antenna combiner to combine two antennas; a splitter will do the job just fine. That will add a 'buffer' in between the two radios, providing some isolation There are several good ways to share one antenna with 2 or more radios. Is it best to use one multi band antenna or can I run two separate ones into a tee? T. Larry Can i contect two different antennas to one scanner ex. While not elegant the best Has anyone used these to combine two antennas into one scanner? SP-1300 Combiner/Splitter | Scanner Master or a BNC Male to BNC Female T Connector | A 'splitter' still leaves the two somewhat coupled, so crap from one scanner could get into the other via the antenna jack. Choose from versions with a variety of band-pass frequency ranges, coax leads or no leads, and "This coaxial switch can be used reversely to connect one antenna to two radios, allowing you to switch between radios using the same antenna. Internet Culture (Viral) Amazing; Animals & Pets; So, can I put multiple antennas on one mast? Like, a small helical satcom antenna sitting on top of a big HF antenna, and then a 2m antenna mounted to the side of the mast? Is it possible combine the signal from two different antennas to a single cable? I’ve seen many people here using RG6, and the standard splitter for TV cable says it can also be used to combine signals. If you were to mount the CB antenna 9ft away from the 20ft mast with or without another antenna on top, your omni CB antenna would be turned into a 2 element directional Yagi antenna. A professional antenna designed for two-way equipment that demands the most signal possible, this is an outstanding 800 MHz antenna. 99 USD Regular price Sale price $19. They then plug into an amp/splitter that feeds into 3 lines inside the house. Scan this QR code to download the app now. 3Ghz yagi can bounce the moon My biggest suggestion to all FPV fliers is get a HAM Tech licence drop to 1. The cheap way is to just put a passive splitter or “T” adapter. And does that 1/4 wavelength apart minimum only apply to antennas and radios in the same wavelength? Let's say I want to put a 2. Not touching, but close. I'm trying to listen to a 150. You have two antennas, one HF and one scanner antenna, and you have a HF transceiver How to use two antennas with a single Bluetooth module? (BLE repeater) Ask Question Asked 4 years, 8 months ago. 0 out of 5 stars 1,059. Reflector Antennas – Mechanical Scanning. Otherwise you might need a diode limiter (Made by HP, sold on Ebay for $25) As far a hood mounting, that seems to be a "Jeep" thing Show a reception gain in receive of 2-3 bars while 6 bars is full scale. I figure they probably can but the impact wouldn't be perceptible. The Remtronix REM-820S SMA 800 MHz made for the Uniden Bearcat SDS100 Scanner. Issue is two fold: 1. The bad ways might work good enough to hear some local stuff but that is about it. I have been considering a new mobile antenna for my 536. 4 GHz Diplexer description DPLU-2000-673 Diplexer, separates GNSS (Global Navigation Satellite System) or GPS (Global Positioning System) signals from 2. you need two antenna's one for transmit and one fore receive If you are willing to run 2 antenna's you can run a control station combiner that allows you to run as many radios as it I rarely use the 2 m/70 cm antenna anymore except for scanning. I would try to space it as far away as possible. I have seen some decent ones on scanner master's site but I know that certain antennas are tuned and receive better for a certain range. And I also just ordered a BITX20 V3 (20m) that I will be building. Here at home, trunking reception show 2 bar gain with a 396xt scanner. 6 inches and weighs around 0,352 ounces. KB1RCC Well-known member. Radios are an Icom 2820, Yaesu 8900, Kenwood D710, AnyTone 578, Icom 7000, Uniden scanner. As far as practical applications go, I've seen a few public saftey setups using multi-plexers to split a multi-band radio into VHF, UHF and 7/800 MHz antennas for one reason or another. The antennas are on NMO mounts, in holes, installed when the car was 30 days old. But, assume the signals are out of phase (This is my understanding of 802. The beam-scanning ranges are ±61° in elevation and 360° in the azimuth. When used as a mobile antenna, it is a big improvement on all bands over a duck antenna inside the vehicle. Question about combining signal from 2 Yagi antennas into one coax. E. if he were to locate and install 2 of the same antennas in a dual antenna set-up, in the favored directions of the system the increase in signal would be such that he could You can use a "diplexer" instead of a T adapter and combine an HF antenna and Discone perfectly. Then I have a 30' "Channel Master" telescopic from Lowes Reactions: merlin, BC_Scan, K5MPH and 1 other person. A 1/4 wavelength at CB frequencies is about 9ft. Bam super direct beam connection. 2/1. One of the ham band mobiles (IC-2820) has two antenna connections for diversity reception, assuming both are dual band antennas. All you need is an appropriate diplexer, which admittedly may be hard to find for what you're trying to do. The combiner basically keeps the ufh from one Scan this QR code to download the app now. com: Bingfu 20-1300MHz Police Scanner Antenna Radio Scanner Magnetic Base Antenna HF VHF UHF Ham Radio BNC Male Antenna (2-Pack) Compatible with Uniden Bearcat Whistler Radio Shack Police Radio Scanner : Electronics Decided to install dual antennas. Add to cart Sold out Antenna for BCD396T, BCD396XT & BR330T Antenna for BCD396T, BCD396XT & BR330T Radar Systems Course 2 Antennas Part 1 1/1/2010 IEEE New Hampshire Section IEEE AES Society Block Diagram of Radar System Transmitter Waveform. I'm hoping two better quality directional antennas might allow me to receive this one channel from the East. patreon. If you are wanting to have two or more radios on a single antenna you are out of luck. SP-1300 Combiner/Splitter | Scanner Master SP-1300 Combiner/Splitter. Out of phase signals from the two antennas can cancel each other out. kb2vxa Completely Banned for the Greater Good. Easy to install, compatible with handheld, indoor and mobile radios, scanners, the antenna body can be bent to 90 degrees, easy to carry. scannermaster. Thread starter JoshuaHufford; Start date Oct receive signal 4 times or 6dB in power but you will loose 3dB or 50% of that in the power divider combining the two antennas onto one feedline. Get one for your HT or scanner today! Amp up Your Operation with the DX Engineering Super Card – Apply Now! Departments ; Antenna, Dual-Band HT/Scanner, 2m/70cm, RX to 900 MHz, SMA female, 10W. 1-800-SCANNER (722-6637) Proudly powered by WordPress The idea is as follows: One scanner connected to two or more antennas. If the LMR-400 upgrade does not Connecting two antennas to one scanner? Thread starter KB1RCC; Start date Jun 30, 2008; Status Not open for further replies. Very low losses. Step 2 - Scanner Antenna Vehicle Mount Location. Power Dividers, Splitters here's the bottom line on dual/co-phased antennas. As there are more scanners and receivers on the market, these antennas have adapted to provide you with an even better reception signal. 1) Combine the (RadioShack Model: 20-176) Outdoor VHF-Hi/UHF Scanner Antenna - RadioShack. There are 2 ways to do this, the cheap way and the right way. Key Features/Specification. Method 2 From radio to antennas with co-phase coax. Both antennas have a pre-amp. A 1-in/4 out will lose 6 dB on each (it's split twice). D130NJ Super Discone Antenna The D130J Super Discone Antenna is an ultra-wideband antenna covering amateur radio, commercial 2-way, cellular, air traffic control and various utility frequency bands. They're all receive only, but will be fed to three different devices; Comar SLR300N for AIS RTL-SDR for general listening LoraWAN antenna for TheThingsNetwork As I understand, the best way to mount multiple antennas is above each other. 99. The purpose of co-phasing receiving antennas is to add receiving strength in directions that you may have weak, distorted reception using just a single discone or other type of wideband scanner antenna by allowing you to add multiple antennas to your mast and feeding them with a The purpose of co-phasing receiving antennas is to add receiving strength in directions that you may have weak, distorted reception using just a single discone or other type of wideband scanner antenna by allowing you to add multiple antennas to your mast and feeding them with a Diplexers allow either one radio to use two antennas, or two radios to share one antenna. I was thinking about extending my pvc pipe and mount the antenna to that. I have used TV type two port divider/combiners from Radio Shack, and worked great with two antennas and two scanner radios, all with one coax. I use D-Star, and even though we have several repeaters here in Los Angeles, I usually go via my DVAP to avoid tying up any repeaters when I get on. Jay in the Mojave . My elmer and I have a Yaesu FT-100 that we are connecting to a Crushcraft R7000 antenna. And make sure there is sufficient physical separation between those two antennas. Mirror Mount - Popular with semi and large truck drivers. I know theoretically I can just take the antenna with me, but it would be easier if you have two. What separates a diplexer from all the other solutions is, that it has a low insertion loss. Location Norfolk, MA. If you simply connect them in parallel you end up with an impedance mismatch and a minimum SWR of 2:1. T / R. The signal path for the two antennas going through both signal combiners will lose 6 dB in the combiner. With an antenna switch you could select the one that works best. or if you combining signals with a half wavelength of transmission line at specific channel frequencies will throw them out of phase with each other throw and therefore reduce one of the signals on This is our most popular base scanner antenna It in corporates 8 capacitor loaded coils to pick out the weakest of signals. Members Online • KingDomOne666 . Running 2 antennas from a single coax, is Not the way to go. The distance between the two diversity antennas should be at least one quarter of a wavelength, and the distance between them will affect the signal. 5W out). com--and-- the Vertical Outdoor DPD Productions - 'TrainTenna' Railroad Radio Antennas 2) Combine two (RadioShack Model: 20-176) Outdoor VHF-Hi/UHF Scanner Antenna - RadioShack. FREE delivery Thu, Dec 12 on your first order. To diminish signal degradation due to insertion loss in the combiners use a pre-amp at each antenna. Perhaps each antenna meant for a distinct band. From there, 7 F-connectors carry the signals to various The scanner antenna will be the one most affected by the other transmitters. For example, a 1-in/2-out splitter will lose 3 dB on each output. The orientation of the antennas to one another caused reflectivity. let's say, as in hossless' case where he's running 1400 watts, (geez) let's say this is being fed into a single antenna. Thread starter woobs420; Start date Mar 27, 2023; W. Then one line runs to the antenna pre-amp and then out the roof-mounted antenna. Uniden BATGO481001 AT218 800MHz Scanner Uniden BATGO481001 model scanner antenna is the best fit for your handheld scanner requirements. According to the product description, this switch has a frequency range of DC-1000MHz and impedance of 50 Ohm. Does 1 antenna / two antenna single receiver is all I need or I still need diversity with two omnidirectional antenna for a better reception? I think 'matching' coax transmission line length can either INCREASE the gain of two signals on the SAME frequency from two different antennas. Generation. SCANNING & RECEIVING ANTENNAS. I've read that one should be careful when mounting two (unidirectional) antennas on the same mast because their electrical fields may interfere with each other. Joined Aug 24, 2007 Messages 65. The cable is shorter than advertised though. I have a TRAM Discone antenna that I have not yet used. Searching for a replacement handheld antenna? Looking for improved efficiency and range? Tune in to our selection of handheld and scanner antennas for 900 MHz, 220 MHz, 23-centimeter, 33-centimeter, 70-centimeter, and 2-meter operation. "Uniden" & "Whistler", FREE shipping, 35,268 happy customers, #1 rated police scanner store, expert programming, best price guarantee, easy returns, lifetime tech support. Akinsolu3, Bo Liu3 and Tian Loh4 1Department of Engineering . com--and-- the Vertical Outdoor DPD Productions - 'TrainTenna' The easiest and safest way to share an antenna between two radios is with an A-B antenna switch. Reply reply I've been inquiring and searching for a Diplexer designed for combining two antennas to one scanner. I. 2 radios is bad Let me address your indoor antennas you had experience with first. Two antennas to one scanner is generally a bad idea, which is why most folks find one compromise antenna that works best for them. you may find a diplexer that handles two different antennas to feed one scanner/receiver. 99 USD Unit price / per . I just purchased a new J-pole antenna 2 Meter Amateur Radio Antennas | KB9VBR J-Pole Antennas for my 2m rig. Never noticed over load or reception of other signals except what I was listening too. There are also several bad ways. Multiple 50 watt dual band radios. Method 1 Set SWR using 50ohm coax from radio all the way to 1 antenna. Thread starter Metrofire31; Start date Jun 18, 2008; Status A dedicated 2/70 antenna for the dual band radio is going to work better. ) So here's a techy question: I have 2 Ed Fong anrennas that i'll be using -- one UHF b Scanner / Receiver Antennas . Type : Portable antenna. (For the time beiing, I'm currently using an 8w Baofeng F8HP with a Nagoya UT-72 mobile anenna, magnetic mount, until all my equipment gets delivered. A single band antenna will perform much better than a wideband scanner antenna on one radio band such as VHF high-band from 138-174 MHz. Rather than drill another hole in the roof, we were looking at combining the two VHF units into one antenna and using the other for the 800. 5db of gain. multi band 25- 1300 and a dual band 800 and 1900 would this hurt anything or should i just use one RadioReference. RX: 25-1300MHz TX: 6M/2M/440/900/1200MHz Length: 4′ 8″ Max Power: 100 watts Weight: 3lbs 3oz (without coax) Connector: SO-239 Separate a single connector duplexed radio into separate antenna systems; Allow a single coax run into two antennas at the top of the tower, and two radios at the bottom by using a duplexer at both ends of the coax run, avoiding cost and weight. Maximize your TV channels and drop that cable bill as I have. Internet Culture (Viral) Amazing; There is a rule of thumb I’ve heard that antennas in the same plane should be 1/2 wavelength apart at the lower of the operating frequencies, but there is quite a bit disagreeing with that online too. Rust-free stainless steel is employed in major component parts making the antenna rust resistant and durable. Supplied with: 1 Moonraker G-SCAN II Mobile Antenna, 1 RG58 coaxial cable of 4m. run a separate coax for each antenna if you want the best performance out of the antennas. The most popular places to install a vehicle antenna are: Magnet Mount (roof or trunk) - Can be easily removed and taken from one vehicle to another - most popular. a 40/20 or 20/10 setup is probably fairly easy to get right, whereas a 30/20/17/15/12/10 combination might be pretty finicky, and the set of lengths that end up working for one ham's soil and surroundings might not even work there reliably, when the weather changes! Extremely wide-band Scanner/Receive antenna. to 774 Mhz. BNC-Male connector and 4m RG58 coaxial cable included. This antenna consists of several series-coupled resonators, the non-radiating resonators are cascaded between two radiating resonators. Moonraker G-SCAN 2 Mobile Scanner Antenna for reception of frequencies from 25 to 2000 MHz. I have two HD antennas that I would like to combine to one. Re: Two scanners from one antenna Post by wind in the antenna » 07 Oct 2010, 17:48 I don't understand how they can claim an insertion loss of - 0. I am building a TenTec 1056 direct conversion receiver for 40m. SP-1300 is primarily designed to split signal from one VHF The only reason you are getting one antenna is most likely signal strength but the signal is probably degraded with the other antenna hooked up. I tried combining them with a Winegard CC-787- coupler but I only get one antenna not both. It receives very good on VHF and UHF. While this will work for 2 radios listening to strong local signals, it will not work well for anything else. Jun 30, 2008 DIY for CBers. Further advice stated there should be a vertical distance of at least 2-4 feet between them. Co-phasing involves placing two (or more!) identical antennas either side-by-side or one over top another (“stacking”) at a certain distance apart Does any one know if is it going to be possible for a subscriber to purchase two antennas for two separate locations under the same subscriptions ? such as a main home and a vacation home. Part Number: DMN-SRJ77CA. The diplexers have filters that prevent transmitted RF energy from traveling into the second radio and causing damage. So for the most part one antenna placed on top of another isn’t going to interfere much. However, I do tend to give people a suggestion and it’s always worked out for me: The space should be the height of the antenna. Depending on the TX power, if the two antennas are too close to each other, the TX energy can couple to the scanner antenna and do two things: a. Two Antennas on one HackRF? Hi, can we use two Antennas on one HackRF? For example a Discone and a Mini Whip? Maybe with an Antenna 2nd question. It looks like I will have to use two seperate antennas to one scanner(996). Currently, i have the radio-shack 20-176 antenna mounted to a pvc pipe on my roof for my scanners. The signal is received/transmitted the weakest from/to that direction. good luck and post some pic of your setup when done, oh yea and dont fall off the roof . Both have their own 18" 1/4 wave antenna. Need help with combining two antennas I figured that posting to this thread will do but please correct me if my assumption is wrong. Make sure there is adequate isolation between ports 1 and 2 (say at least 60dB to be safe). A dedicated scanner antenna will work better for the scanner, especially if you listen to stuff in the 700-800MHz range. | Photo courtesy of Uniden. I have also used a dual band radio with two antennas (one VHF and one UHF) and had good results. 50m single coax run to feed two receivers. First: What’s a Splitter? A splitter is a device that is used with antennas to combine two antennas together for better signal reception. Combing four Yagi antennas will increase receive signal If you have more than 1 radio and want an outside antenna you can share the antenna with multiple radios. 0 antenna to connect to a WiFi Dongle, a 433 to connect to a LoRa meshtastic device and a antenna to connect to a RTL SDR All he asked was if he could connect two external antennas to one scanner. That’s what I tend to tell people. Internet Culture (Viral) Amazing; Animals & Pets; Yes my current set up as 2 antennas facing 2 different markets with 2 different types of HDHR models works fine. Antenna is a dual band diamond 18ft tall version. 700/800MHz Replacement Long Rang SMA Male 7dBi Antenna for HP UNIDEN HP-1 HP-2 Scanners & More HomePatrol 1 2, Slinkdsco Eightwood UHF 400MHz-900MHz Antenna BNC Male Antennae 2-Pack for Ham Radio Scanner Handheld Amateur Receiver Do whatever you can to either a) make a fool-proof switch between each radio so that you can't TX into either the scanner or to complete open, or b) do what it takes to put up a 2nd antenna, especially located at least 2 or 3 feet away from whichever is An antenna array (or array antenna) is a set of multiple connected antennas which work together as a single antenna, to transmit or receive radio waves. This is what allows dispatch centers to have 4-36 control stations to interface to various systems using only a single transmit antenna (or one for each band if using multi-band radios with a common antenna port). It can be used to split one multi-band radio in to multiple band specific antennas or combine multiple band specific antennas into one antenna. The radios are all coupled together with short lengths of coax combined with BNC connectors and adapters. Yes, he can. The other one is fed by Or the micro antenna tracker mounted on the RC device. One application where this ability is extremely useful A problem could be that one scanner could send out a weak signal out its antenna port that the other scanner picks up and stops its scanning. If not, then you can either get a rotor (the fastest of which has a max rpm of 1) or do what I do, two antennas, two separate downleads feeding into an A-B switch on the tv. In some cases, that won't matter much, but in others, it can do serious damage to the antenna (and eventually damage the finals on the 2 meter radio). You’ll find monoband, dual-band, tri-band, and quad-band handheld antennas and scanner antennas from top Scan this QR code to download the app now. Simple diplexers that split between two bands can be quite small, but as the split signal gets closer and closer, the diplexers will Chances are, one time or another, you will try to transmit on 2 meters on your scanner antenna simply because you forgot to flip a switch or change a jumper. I have used a duplexer to run two radios (one VHF and one UHF) on a dual band mobile antenna. xxxx (vhf p25) and 453. click for full size image Figure 3: Example –The diagram shows the Isolation If the stations arent that far apart in degrees and the signals are powerful, pointing the antenna in between the two stations may do the trick. The individual antennas (called elements) are usually connected to a single receiver or transmitter by feedlines that feed the power to the elements in a specific phase relationship. In this brief, we present one type of frequency scanning coupled-resonator two-element array antenna and its corresponding equivalent circuit synthesis method. Joined Apr 30, 2018 Messages 20. Package List: 1 x Antenna (As the Picture Shown); Compatible with Uniden, Scan this QR code to download the app now. Reply reply That filtering will block large swaths of RF from reaching the scanner, making it completely deaf on the band the transceiver uses. Connecting two antennas to the radio. Power. Antenna SMA-M 2m/70cm + scanner 118-900Mz Yaesu TYT Wouxun . But want to monitor hf also and build a YAGI type antenna to pick up ham sattelites. Combining antennas is more complicated. One for commercial/civilian and one for military aircraft. Separating two antennas by three feet will cause a 30db drop in signal between the two antennas. But since a 200mw 1. 43 dB. using one as a scanner (listening in on public service frequencies, for instance) and transmitting on the other. I live between Milwaukee and Chicago. If possible, I would like to monitor all sources simultaneously but obviously, I only intend to broadcast on one transceiver at a time using the one antenna. It has a dimension of 6. + Miles West My Local Stuff is 16Mile North Uhf 540-590 Mhz I Get Easy Home Made 8-Bay Vee-Antenna Having multiple physical antennas to one scanner is impractical even considering the tuned nature, plus you either end up having to put an antenna switch(er) in-line someplace to physical switch from one to another or you haphazardly use a splitter which basically halves the signal getting to the scanner itself. Each transmitter and receiver pair share the same antenna. The catch is, typically talking about 15-20 dB of loss through them (so 50W in equals 0. These two new radios will become a niche market because they don’t offer all digital modes, but enough that might allow you to monitor specific services in your GNSS/GPS-Bluetooth/2. Mar 27, 2023 #1 If I connect two antennas to one radio using a t connector will it work? That depends on your t-connector. 11n MIMO WiFi system with 2 transmit chains and 2 receive chains. 25 x 0. I have two transceivers I would like to use to broadcast with the antenna and two scanners I would like to use with the antenna as well. Experimenting with my Mobile scanner with two antennas ( one pigtail and one center loaded ), both on the same type of cable and distance ( rg58 ). com/turbine_guyFollow me as I travel and ex These antennas range from wideband to single band. Thus, the presented single-layer miniaturisation LSG Can I install a scanner discone antenna in my attic and merge the coax from the the tv antenna with the coax from the scanner antenna into a single coax cable if I keep the two antenna cable lengths the same? It is much less work doing it this way rather than running another long length of cable out my attic, down the side of my house, into the The trick might be to not try squeeze too many bands into one antenna. Basically, you have two antennas and two receivers and somewhere down the signal chain you have a switch that can on a moment to moment basis select the best of the two received signals in real time. Is it possible to put two antennas of different How to Split and Share a Single Antenna across Multiple Scanner Do you need to split or share the signal from a single antenna to multiple scanners? In this episode, I explain the hardware you need to achieve this setup, how the technology works, and what to look for when purchasing the accessories you need. xxxx (uhf p25). Read our article for all the details about this and one other new scanner. One specific to the transceiver, and another specific to the scanner. Just choose a diplexer that has one port for 30MHz and lower and the other port 49MHZ and higher, they are very common. two attic antennas (one for vhf, one for uhf), joined together via an antenna combiner from Antennas Direct. Find Handheld and Scanner Antennas Dual-band Portable Antenna Usage and get Free Shipping on Most Orders Over $99 at DX Engineering! Shop All Our Hot Deals! Departments ; Hot Deals; What's New; Antenna, Dual-Band HT/Scanner, 2m/70cm, RX to 900 MHz, SMA female, 10W. Specifications: Type SP-1300 Description passive wideband splitter Frequency range 8 – 1300 MHz SP-1300 is primarily designed to split signal from one VHF antenna into two receivers – scanners. com-- one would be placed on each side of my attic. Scanning and receiving antennas have come a long way in recent years. Thread starter rhattala; Start date Jan 23, 2006; Status Can i put 2 antennas on same mast and what distance between the two antennas? I want to put my dpd LP scanner yagi antenna and my diamond discone on my chemney and want to install it right. talkpair Member. If you really want, you could use that, but if range/penetration is a concern, you will do better with 2 Each dipole's length is the same as the Super Scanner antenna above using aluminum tubing of the same or similar size, average size of about 5/8th inch in diameter (original Super Scanner elements are tapered), 114 inches total or 57 inches per half and the boom length should be at least the total length of one dipole end to end. Viewed 62k times In software circularly polarization of antennas Securely storing a password for matching against its substrings Why can my artificial wombs only work in vivo? Bingfu Ham Radio BNC Male Soft Antenna Police Radio Scanner Antenna 2-Pack Compatible with Uniden SR30C Bearcat BC125AT BCD436HP BC75XLT BCD325P2 Police Radio Scanner Frequency Counter Two Way Radio. www. A duplexer is most often The aircraft and marine industries use this method, having two or more antenna feed a combiner to have more than one antenna feed one or more radios. My first one was made out of aluminum tubing; the others were made from RG 174 coax (center conductor and braid tied together). Totally weather protected in fibreglass housing for long lasting use. This scanner antenna is possibly the best antenna available for 700-960 MHz monitoring! While it does not work as well on lower frequencies if you need extra I have an 802. Moonraker Super Gainer MRW-100 black 40cm walkie-talkie scanner antenna with male BNC connector, for radio scanner and/or walkie-talkie with female BNC connector on the set. Includes 65 feet of RG-58A/U coax with PL-259 connectors installed . As examples, two scanning transmitarray antennas are fabricated and measured. Tried it and it didn't work well at all for 800. If your tee really is just a branch in the inner conductor and connected outer conducters, than the other two answers are correct: your input impedance will be different than your output impedance. I got busted when I asked gf#1 about a conversation I had with gf#2 while listening to a similar event on the scanner. In this article, I will guide you on combining two antennas using a splitter to get better reception. Question: if both antennas aren't amplified, will electrical interference still be an issue? Base Antennas:. Aircraft use a upper In short, yes, it can be done. Internet Culture (Viral) Amazing; That implies two antennas on one end, and two radios on the other. Or check it out in the app stores Home; It has an operation frequency from 1 MHz to 6 GHz (send and receive in half-duplex). An antenna switch. . My listening post consists of 5 scanners connected to an external antenna on my old TV antenna mast. , Each. duplexers, triplexers, and quadplexers are common ways to combine multiple antennas over a single coax run. dlshktw gobrkx csvb rth boqopen kmkkrm dgzcb mcqon ufuenq yqktxwru