Jump to content


radio link and frequency

  • Please log in to reply
6 replies to this topic

#1 George Grammatikos

George Grammatikos

    Advanced Member

  • Members
  • PipPipPip
  • 42 posts
  • Greece

Posted 06 April 2004 - 11:00 AM

Hi Guys i am in search for a new radio link .
so i need your help , what frequency work better 1.2 Ghz or 2.4Ghz
in 1.2 g i will have a double size (compared with modulus) link but 0.5 watt rf power in 2.4 ghz i have a 1/3 size (combared with modulus) but only 44mwats Rf power ,but the size of the transmiter and the antena allow to put it always on the top of the cammera
anybody who work with one of this frequency can help me
Jim Bartell are you out there?
  • 0

#2 Brad Hruboska

Brad Hruboska

    Advanced Member

  • Sustaining Members
  • 156 posts
  • Toronto

Posted 06 April 2004 - 12:35 PM

  • 0

#3 JimBartell


    Advanced Member

  • Sustaining Members
  • 481 posts
  • Long Beach, CA, USA

Posted 06 April 2004 - 08:09 PM

  Jim Bartell are you out there?

Yes I am and I'm keeping my mouth shut lest I betray my woeful lack of knowledge regarding most things RF. Besides, all the RF book learning in the world is not nearly as valuable as actual experience using the gear in the field (which I have never done) so I yield the floor to those who have.

Jim "bullet dodger" Bartell
  • 0

#4 RobVanGelder


    Advanced Member

  • Sustaining Members
  • 915 posts
  • Bangkok, Thailand

Posted 07 April 2004 - 12:17 AM

George: the higher the frequency, the more you have problems with obstructing elements, walls, reflections etc.
Also, 2.4 GHz is full of data communications and security camera´s, and don´t forget our own Preston, Scorpio and Arri Follow focus sets.
Therefore you will experience much more interference on this band.

The difference between an aerial for 1,3 or 2,4 is neglegtible, at least in my experience.
I use a cheap (made in taiwan) 1,3 GHz system that performs very well, considering the investments. It has no reflections nor other annoying users on the same channels (yet) so I would go for that.

Also, my 0,5 watt transmitter is small enough to put on top of any camera, no weight issues here.

Rob van Gelder, Bangkok, Thailand
  • 0

#5 thomas-english


    Advanced Member

  • Sustaining Members
  • 1163 posts
  • UK

Posted 07 April 2004 - 03:17 AM

did u buy your 1.3g system on the net? i ve got this stupidly powerful 2.4g transmitter but im waiting for the day i see a soundman running about cluting his ear, scratching his head in some kinda blind panic or something like that.. so id like another dodgy kit on a different frequency.

i bet u just bought it in your local shop, lucky... living in thailand... the land where getting a normal passport photo comes with free full on photoshop airbrushing and complete removal of those stupid flowers on your shirt.
  • 0

#6 RobVanGelder


    Advanced Member

  • Sustaining Members
  • 915 posts
  • Bangkok, Thailand

Posted 07 April 2004 - 08:10 AM

The brand name here in Thailand is Fujiko, but a search on google reveals only a bondaged japanese porno starlett.....

Anyway, they sell them here in great numbers and variations: 1.3, 2,4, I even saw a 5.0 GHz system.
With or without camera, with or without LCD in the receiver, etc.
10, 100, 500 mWatt.

I bought my system for around US$ 450 and another $300 for a LCD screen 5" with receiver.

Rob van Gelder, Bangkok, Thailand
  • 0

#7 Rich Cottrell

Rich Cottrell

    Advanced Member

  • Sustaining Members
  • 168 posts
  • Erdenheim, PA

Posted 07 April 2004 - 10:12 AM

i thought that Fujiko/ google thing might have been some sort of joke...
it is clearly NOT.

thanks for the info:)
  • 0

Camera Motion Research

rebotnix Technologies

PLC Electronics Solutions

PLC - Bartech

GPI Pro Systems

Boland Communications

Betz Tools for Stabilizers

Paralinx LLC


Omnishot Systems


Wireless Video Systems

Ritter Battery

Varizoom Follow Focus