Does Antenna Size Matter? 6 inch Dipole vs 6 Foot Collinear!, Hak5 1607 

It's not how big it is, it's how you use it...

No it is the array that accounts.

huge antennas are like communism, better in theory than practice

Elevation Elevation Elevation .. Size ? Misleading unless you know something about atennas.

martyn ridley right - hence next week it's fresnel zones, radio horizon and a 4000 foot hike!

She is banging

LANA... LANA... LAAAANAAAAAA! ...... DANGERZONE!

The coax inside the plastic tube isn't just coax it has been cut into precision lengths and rejoined, to form a "collinear antenna". The video doesn't make this fact clear.

+Eli Youmans The higher the antenna is -in general - the better it will perform. If there is a plane that's so far away that it's below the horizon and raising your antenna a little higher brings it above the horizon, then yes.

radiosification Do you think that that or ANYTHING will remove the boredom? What a pain in the butt are these two! She's so bloody nice I wanna puke Is Ham radio this low tech in American? It's on a par with Sesame street.

Geesh you guys ... they are meant to appeal to a different, non-techy audience!

Screen recorder

ow what the name look very nice

Andrew Martin AverMedia live gamer portable gamerzone.avermedia.com//game_capture/live_gamer_portable

TheGuy cheers

:)

Not true my friend. The small magnetic antenna works better on the roof of the car because it needs the metall roof as counterpole!

vomKuckucksfelsen Mount the magnetic antenna on a small metallic ground plane and put it at the top of the pole also. Compare both antennas AT THE SAME HEIGHT ABOVE OBSTACLES. *_THAT_* would be a fair comparison, not one at the top of the pole and the other several meters below.

corisco tupi thats true. I´d be very interested to see how a simple Groundplane Antenna made of a couple pieces of wire would perform. www.hamuniverse.com/2metergp.html Just adapt it for the higher freq...

AND the comparison is also unfaire because the magnetic mount antenna has a much longer coax cable...

vomKuckucksfelsen One could actually use the same coax, mount the receiver mid-pole and go down from there with a USB extension.

Tuned is better. A Kilometer long antenna is no good for frequencies above HF. 300/frequency=wavelength then... Wavelength/2 for dipole with high angle of elevation of wave (EG go over tall mountains and buildings if other factors allow such as frequency and enhancements caused by sun) Wavelength/4 for dipole for lower angle of elevation to get more distance before first bounce (if conditions allow for a bounce), it's also a more practical length antenna for most applications. Finally take ~5% from the final length to allow for velocity factor since electrons move much faster in a conductor than they do in free space. Other antennas are designed around 7/8th and 5/8th of a full wavelength but these are usually a poor match and if DC loaded they will be quite noisy. Other designs such as a Yagi work better, but are akin to using a mirror behind a candle (a director element), you increase the light (signal) in one direction by reflecting it, and adding lenses to focus the light to a point (directors). A typical Yagi design is built using 1/4 wave elements with a passive or active matching rod or wire. The principles in antenna design is the same no matter how you make an antenna because antennas dont change physics because you stuck a brand label on it.

+gamerpaddy So helpful. Where would I be with out people like you? /endsarcasm