• Effective immediately we will be deleting, without notice, any negative threads or posts that deal with the use of encryption and streaming of scanner audio.

    We've noticed a huge increase in rants and negative posts that revolve around agencies going to encryption due to the broadcasting of scanner audio on the internet. It's now worn out and continues to be the same recycled rants. These rants hijack the threads and derail the conversation. They no longer have a place anywhere on this forum other than in the designated threads in the Rants forum in the Tavern.

    If you violate these guidelines your post will be deleted without notice and an infraction will be issued. We are not against discussion of this issue. You just need to do it in the right place. For example:
    https://forums.radioreference.com/rants/224104-official-thread-live-audio-feeds-scanners-wait-encryption.html

diy

  1. 1

    1/4 wave ground plane SWR and POWER, antenna theory

    Today i built my first antenna. A simple 1/4 wave ground plane with copper wire and a SO239 connecter. What i found very interesting was when i was complete and i started to check power and swr, that i was able to tune the SWR and in turn, adjust power out, while changing the angle of the radial...
  2. T

    Help a newbie with his first antenna

    Hello! I've been into simple hobby RF for a while, but I'm just recently getting into antenna design. I got into RF stuff when I bought my first SDR receiver (those cheap rtl-sdr USB dongles on ebay). They work from 24 MHz to about 1,7 GHz. I own some better SDR devices today, but I've mostly...
  3. Radiocar

    Can Anyone Identify a Moto connector? Or perhaps suggest one?

    So before posting I've done my prerequisite and courteous 4 or 5 hours research before coming before the well versed and knowledgeable forum that is Rad-Ref. Sadly I couldn't find any information on the dilemma that I came across earlier today. So while running the streets of northeast Los...
  4. andrewvickery1

    2 meter j-pole

    Ok question, I am wanting to build a 2 meter j-pole and have looked at 100's of designs and have noticed that some have the short leg as the driven element and some have the long as the driven element. I am totaly confused. Please help.
  5. KR0SIV

    Simple V Dipole For Satcom Downlink

    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...
  6. E

    Midland ML3215 Programming Cable Pinout

    Hello, I Have a Midland ML3215 Radio REV.E . Cant Find The Programming Cable Online. So Attempting To Make One. Any Know Where I May Find A Pinout / Cable Diagram So I Can Make One. Any Help Would Be Appreciated
  7. S

    Build my own Discone (Imgur album in text)

    As I've gained more equipment (now an SDR which I use for ADS-B and ACARS) and my pro 2006 for NOAA APT i've started experimenting more with building my own antennas (Such as a double cross for APT). Well, I decided I wanted to do a little more, get a little bit more technical. I looked at the...
  8. C

    Tape Measure Beam - Less than $20 in Parts!

    They look cool ... they get you into the world of high gain on 2M and/or 440 ... they cost little ... Just don't try to get one past TSA at the airport ... (grin) Several tape measure beam DIY project plans - as well as a story of how one group made a handheld beam out of barbed wire and...
  9. nated1992

    DYI Scanner antenna

    So i have recently experimented with making my own antenna, I believe i have been pretty successful in my creations with the average reception ranging for 20-40 miles, Even more impressive due to the fact i live in a mountainous region. 1 I used a aluminum tube and some coax, I toke about 10...
  10. K

    Shortwave Antenna - Overwhelmed

    I've perused the radioreference.com forums and overwhelmed myself with web searching for a shortwave antenna to enhance the reception of my new Grundig G3. I like building things myself, so I first focused on plans and kits. I finally followed advice I had read in many forums about "throwing a...
  11. E

    Home Made Antenna Plans

    I have a Yaesu VX-6r and still have the rubber duck antenna on it that I would like to replace. While I have looked for new antennas online, I would really like to make my own if possible. Does anyone know of good DIY plans, schematics, or websites that show how to do this. Preferably ones...
Top