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4 votes
Accepted

Improving VHF airband reception

Controllers and ATIS are transmitting from the ground, so they're always harder to receive because terrain, trees, and buildings are in the way. The best thing you can do to improve your reception is ...
Kevin Reid AG6YO's user avatar
  • 24.7k
3 votes

Tuning to Aviation Band on Kenwood D-710G?

First of all, only Band A (left side) can be tuned to the aviation band; if you try to use Band B it will not work. Press the left "BAND SEL" button (volume knob). Then you should be able to use the ...
Kevin Reid AG6YO's user avatar
  • 24.7k
2 votes

78.5MHz AM receiver self-oscillation

When designing circuits for the VHF region, careful design and construction practices must be utilized in order to obtain stable and repeatable gain. Here are a few thoughts that may improve the ...
Glenn W9IQ's user avatar
  • 18.6k
2 votes

Wide band TX capable band-pass filter for VHF and Airband

The basic idea is a high-pass filter to separate FM broadcast from Aircraft band. You need quite a wide passband, including aircraft, up to top of 2M ham band. So start with a 5-element high pass of ...
glen_geek's user avatar
  • 1,001
1 vote

What type of metal, length & diameter should i use to build a vertical antenna to listen to airband frequencies (118-137Mhz)?

It sounds like you are looking for an Elevated Ground Plane Antenna. A little large but doable at those frequencies. Search for Elevated Ground Plane Antenna Design. You can make one out of a SO-239 ...
Dereck's user avatar
  • 639
1 vote

Why is the Air Band distorted at times with SDR Sharp?

An RTL-SDR is susceptible to overload from strong signals, such as from an AM broadcast station, from another aircraft flying overhead, or other nearby transmitters or sources of RFI.
hotpaw2's user avatar
  • 13.5k
1 vote

78.5MHz AM receiver self-oscillation

I see two coils in close proximity in the "as built" photo. One coil is connected to the detector; the other to the antenna -- and their axes are colinear. Whether this was the intent or not, your ...
Zeiss Ikon's user avatar
  • 4,127
1 vote
Accepted

where to look for (live or recorded) air traffic conversations for a specific area?

126.3 MHz is the Talkeetna CTAF (Common Traffic Advisory Frequency). You may have heard some traffic on this frequency while in-flight. Pilots use this to advise other pilots that they are in the area ...
Glenn W9IQ's user avatar
  • 18.6k
1 vote

Tuning to Aviation Band on Kenwood D-710G?

I never saw a viable answer here. Realize this post is a year old, hopefully it is answered somewhere. The solution is to select band A, left side by pressing the left volume control on the right ...
W9WEP's user avatar
  • 11

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