antenna

I have several very basic telescoping antennas for scanner radios. Would there be any advantage to somehow combining them in series to create a more powerful "single" antenna?

I just ordered a HomePatrol-1 on eBay. It hasn't come yet. How good is the stock antenna? I will be primarily using this 5 or 15 air miles from two major metropolitan centers and possibly while mobile. I have a number of spare dual band Ham HT antennas (Nagoya NA 771, Comet SMA24J) and...

Hello, my team and I are launching a cube sat into space. We are fairly new to radio and are not sure what radio transmitters or receivers to use. We would need to transmit to a distance of about 251 miles, we can have a fairly large ground station, but the transmitter and receiver would need to...

I have just purchased a Motorola XPR6550. I am wondering if the proprietary antenna connector Motorola is using on this radio has a name. I was looking to purchase an adapter to use this radio on an outdoor antenna. It sounds silly given where the radio was built to be used but that doesn't...

Hello all. So I have a couple of Uniden BC125AT scanners and I'm looking to upgrade their antennas to get a better signal. Preferably I am looking for an antenna that will keep the scanner portable, but I'm also interested in what antennas would be good for mounting in a more permanent location...

I recently made a V-Dipole antenna using a set of rabbit ear antennas after looking at an article I found over at the rtl-sdr blog. Simple NOAA/Meteor Weather Satellite Antenna: A 137 MHz V-Dipole He was using it to rx weather satellite images, I figured if it is good enough for that maybe I...

I recently moved away from the City I need to Monitor. I'm about 30 Miles away now and The band I need to pick up is 470-500mhz Range. I run Bearcat Trunk Tracker and Currently I'm using a Discone which is NOT picking anything up. Questions to you : What antenna would you recommend ? How...

In my area, there is a P25 system which continues to expand and has 13 towers within my county alone. The multipath from overlapping signals on the same frequency makes reception annoying and often unintelligible in mobile or portable listening. I have tried various adjustments to my Whistler...

I bought a Diamond RHC77CA antenna listed as 120-900mhz for my Whistler WS1080. I bought a cheap import on eBay that was shown to be the same size and multiband range. What was sent from eBay was a Similar looking 16" whip, Nagoya NA-771 dual band 144/430mhz antenna. As a newb, will this...

Hello all, We are working on a school project in which we were tasked to design an FM receiver antenna that receives signals at frequencies between 900 Mhz and 1000 Mhz. What are some potential antenna builds/dimensions we should research? Where should we start? Thanks in advance, Sean & Raven

I need advise for a new scanner antenna. After many many years its finally time to put my old ST2 to rest. It has become a victim of bad weather and old age. I need a new antenna and not sure which one to buy. I'm looking for one that's very good on 42.92 MHz and 42.64 MHz that's Imperial County...

Quick Question before I goto work. (Please do not expend too much time/energy with your response.) My house has dense trees approx 120-150 tall occluding 90* to 180* E to S I want to mount an omni ant (single monopole and maybe omni scanner type) in a treetop approx 120' tall. Cable length will...

RTL-SDR v.3 Unitrunker DSD+ Windows 7, i7 2.7ghz, 8GB ram Here's a 2min video of my setup. https://youtu.be/_pq4sH-tZVM I actually bought a Wilson 301111 yagi, and I'm getting no better reception than the RTL-SDR stock retractable antenna. How is that possible? Is this reception? Decoding...

So my work was kinda slow today with all this rain so I was able to take the opportunity to spend some time shopping for some new toys. I'm looking at a Diamond discone antenna to add to my old Uniden and ultimately with my new bcd436hp when it comes in. Does anyone have experience using one of...

Hi, I'm looking at ordering new ADS-B receiver system and wanted to get advice on what would be the best for my home looking at AirSpy R2 and The Radarcape the cable run is about 60 to 65 Feet long I was looking at AirSpy R2 Airspy R2 | airspy.com it has 4.5v switched Bias-Tee was...

Hello all! First of all, my apologies if this is in an improper forum section. Please feel free to relocate it to somewhere more appropriate... Quick question here. I am helping to design a system for a client that has need of a wide-area wifi coverage system as well as some far-reaching IP...

I'm trying to replace the stock antenna on my home patrol 1. I went to Radio shack and purchased a 800mhz Handheld scanner without doing any research at all. Well come to find out I bought an antenna with a BNC connector. The Home Patrol seems to have a SMA connection. I came on here and saw...

Anyone out there know what make/model those 'pointed' puck roof antennas are on the scout cars? Are the multiband or just for MWS or just voice? - Thanks in advance

Hi Everyone, I'm brand new to this site, and brand new to scanning. I previously bought a Motorola HT1000 Police radio online. I paid the person I purchased it from to turn off the mic, and program several local agencies I wanted to listen to. I paid a retired Police communications tech to...

Hello everyone, i'm sure this was answered before (although i didnt find a recent post) but i'm looking for a high performance antenna to match with my midland mxt 400 radio [which is on it's way for delivery =) ] i bought 2 radios i will be using 1 radio for mobile operations and another...