Archive for the ‘vhf spectrum’ Category

Hydro Quebec interference

Saturday, June 5th, 2010

Heavy power line interference presumed cause by Hydro Quebec in Belleterre QC,Canada. Grid Locator FN07PJ Interfering the HF/VHF spectrum from 14-60 MHz on Icom 756 Pro III transceiver , 10 ele Tennadyne Log Periodique and 6 ele Killer Bee 6M band quad. Recorded Tuesday Avril. 20 at 20:30 EDST.Duration : 0:3:47

Building a VHF repeater, Mastr II front end rough tuning

Monday, May 31st, 2010

This shows how to get your helical tuning assembly in the ball park of your amateur frequency. It doesnt take veyr long but you need some sort of source of a carrier at the desired freq and preferably a spectrum analyzer or at the very least a signal strength meter.Duration ...

What is the lowest electromagnetic waves been detected today?

Friday, May 28th, 2010

What is the lowest electromagnetic waves been detected today? Some years back, electromagnetic waves are said to have been detected with a frequency as low as 0.01 Hertz (Hz). Have much lower electromagnetic waves been detected since, and how low, using what and where can I find proof? Helpful notes: Electromagnetic waves with ...

Belkin Gigabit Powerline HD Starter Kit – Radio Interference

Friday, May 28th, 2010

This video demonstrates that Powerline Networking can now interfere with your enjoyment of Stereo FM radio and the new DAB services. EMC Engineers have long known that Powerline Networking adapters cause unacceptable interference to radio and breach the European EMC Directive since they do not comply with the Essential Requirements. This adapter, ...

In theory, there’s no limit to the size of wavelength, but …?

Tuesday, May 25th, 2010

In theory, there's no limit to the size of wavelength, but ... there is a speed limit of light, can the size of the wavvelength be limited too, not just due to lower in energy? Or my maths is wrong, and I'm looking at the wrong thing all together? Some years back, electromagnetic ...

Yaesu FT-2000 with RFSPACE SDR-IQ SPECTRUM SCOPE

Sunday, May 23rd, 2010

This video shows the Yaesu FT-2000 with an RFSPACE IF-2000 / SDR-IQ KIT. This Kit adds the fastest and highest resolution panoramic adapter available. Compared to the DMU-2000, the SDR-IQ offers about 50 updates per second plus resolution so high that CW can be read from the waterfall display. In ...

can u us this radio to talk to people with a CB radio?

Saturday, May 22nd, 2010

YAESU VX 8R 50/144/220/440 Handheld Four-Band Radio The Yaesu VX-8R HT provides a full 5 watts FM on 50/144/430 MHz plus 1.5 watts on 222 MHz. It supports Bluetooth® hands-free operation with the optional BU-1 and BH-1 or BH-2 accessories. There is also an optional GPS unit and antenna with loads ...

"What are the three types of spectra?"?

Wednesday, May 19th, 2010

This was a question on a recent test I had in Astronomy. I know my electromagnetic spectrum very well, but this question was phrased too oddly, I didn't know how to answer it and had to leave it blank. Three types? The spectrum has the visible wavelengths (a subset with ...

Rescue TV Part 3.wmv

Tuesday, May 18th, 2010

Showing how this TV can pick up over the air signal with practically no antenna connected. Channels are shown both from the UHF and VHF spectrum.Duration : 0:10:32

Conspiracies in America starting to look more like fact?

Saturday, May 15th, 2010

Does anyone else feel that a lot of the 'nuts' with their conspiracies are starting to look right? Other than the global warming 'issue', Im talking about things like fully functional, government funded concentration camps around america with no prisoners (yet), Or rail cars having shackles in them, while conveniently these ...