Metal Roof and Wave Propagation... Will it Help or Hinder...? Yes …
Dec 27, 2018 · For HF verticals a metal roof is the best thing possible. For VHF/UHF it may actually degrade performance slightly by pushing the signal upwards slightly above the horizon compared to the same antenna above a non conductive roof.
how to improve antenna for portable radio?
Nov 2, 2023 · The radio can pick up the antenna's re-radiated signal via induction. Sometimes placing the whip near the feedline or the end of the wire -- without touching it to the wire -- will improve reception. I did this with a Radio Shack portable in the 1990s and got decent results (the radio was the DX-370, a portable with no EXT antenna jack).
Radio Triangulation - RadioReference.com Forums
Jan 3, 2016 · TheWarlock said: How does Radio Triangulation work. like if your trying to find someone who is transmitting on an illegally on a channel. can someone please explain how are they caught. It has already been explained, but the term triangulation comes from triangle, as you need (at least) three readings to have any reliability.
SDR RTL NOT SHOWING ANY SIGNAL/STATION
Jul 5, 2023 · Any version later than v1910 will not work well with the RTL-SDR. For the RTL-SDR, you need to open the Gain setting window using the cog wheel. 1. I am tuning the frequency randomly just to catch any station for testing purpose. 2. I have downloaded the SDR# software which is available in SKYWAVE website. 3.
Scanner Signal meter - RadioReference.com Forums
Jun 25, 2008 · Messages. 2,531. Location. NJ USA (Republic of NJ) Jun 26, 2008. #9. I installed one in my RS Pro2042. It is one of those 10 segment LED electronic signal strength meters and works great. A lot would depend on the model scanner you have and your electronics skills.
Scanner Radio Signal Boosters. | RadioReference.com Forums
North East N.Y. Apr 10, 2006. #2. I purchased a low noise 20db GaAsFET preamplifier from Advanced Receiver Research and It was the best investment I have ever made. It has been running non stop for two years now. I can pickup transmissions from miles and miles away in an area that has many mountains.
Unidentified signal at 462.000 MHz - RadioReference.com Forums
Messages. 22. Jan 2, 2021. #1. Hello -. I have been detecting a continuous signal at exactly 462.000 MHz. While initially I thought this was GMRS, the GMRS channel plan starts at 462.5625 MHz, and does not appear to include 462 on the nose. I am able to pull DCS codes from the signal, however, they are non-standard codes +037 +137, -057 -172.
What signal is this at 4.284MHz? | RadioReference.com Forums
Seattle, WA. Oct 14, 2024. #1. I was tuned to 4.284MHz, and while using USB mode the signal was centered on an audio frequency of 2KHz, so that means in the RF spectrum the signal was centered at 4.286MHz. It appears to be a fairly wide band mode for HF transmissions, due to it being about 3Khz wide. It has a very flat top to its spectrum ...
CB Radio Direction Finding Setup | RadioReference.com Forums
Mar 4, 2021. #5. iloverf said: I'm looking for a good CB Radio direction finding setup. I thought about buying a DDF2020T - but it says 100mhz and above. Part of the situation is that with the antenna set-ups the RDF systems use, the antennas need to be a certain distance apart (I once read 1/4 wavelength), which is going to be a bit cumbersome ...
How a radio transmitter circuit mixes audio with carrier wave?
Oct 24, 2024. #6. RFI-EMI-GUY said: The transmitter oscillator creates the carrier wave (channel center) of the modulated signal. The receiver local oscillator (in a superheterodyne receiver, creates a reference for channel center that is offset by the intermediate frequency (IF) by some amount, typically 10.7 MHz in common radio designs.