antenna

I'm not RF-knowledgeable enough to have any comment, this just seemed like it would be useful/interesting to some folks on here

Hello! I am in my university's Rocket Club and am trying to design our telemetry transmission system for our Avionics Team. We are building our own hybrid-engine rocket, and our first launch is expected to reach an apogee of approximately 500 meters. We want to send data from sensors...

I am trying to develop antenna for telemetry module to communicate long distance(20km) on rockets. Antenna shape I want to develop: 900mhz 3dbi Helix normal mode antenna. For the telemetry module, which receives and transmits signals horizontally, I want to make an antenna whose wire is wound in...

I was trying to fix the antenna to the plate but it broke how can i fix my new problem. Thanks.

I admit my ignorance in terms of antennas and GPS/telemetry transmission range. This is an AIM XTRA 2.0. I added the two 90 degree elbows to fit my antenna into my av bay. Will the addition of the elbows increase transmission range, decrease range, or have a negligible impact on range?

Firstly, I apologize if this has been posted before, but I've been unable to find anything related to my issue. Shoot me a link if a thread exists. I'm currently experimenting with a ground station that will be communicating to a TeleMega v3.0 on a rocket that will fly to approx. 30k ft. I am...

Can you tune a quadrifilar helix antenna for a frequency range vs. a specific frequency? There are a lot of documents as well as calculators for designing and tuning these home made antennas to a specific frequency. However as you know, sometimes we have to change frequencies on the field...