Contact US

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

transmission on 2.4 -2.5 ghz

transmission on 2.4 -2.5 ghz

transmission on 2.4 -2.5 ghz

i need to transmit a signal on the frequency 2.4 - 2.5 ghz for a range of about one mile and would appreciate some imformation on what equipment i need and if possible where to get it from

RE: transmission on 2.4 -2.5 ghz

You need to know if the signal is analog or digital, the
required S/N ratio or error rate.

For a short distance like this a parabolic antenna
may be an overkill.

"Seek and ye shall find..."  


RE: transmission on 2.4 -2.5 ghz

2.400 to 2.485 GHz is an ISM band, so it's license free. The equipment you need will depend on the purpose and interfaces you need, but you can look at www.wavewireless.com for some options.
If you don't have technical expertise in link design they will help you with it.


RE: transmission on 2.4 -2.5 ghz

a source of the allocated frequencies:

Otherwise, you obviously need a TX, antenna system and RX. ITs useful to know the purpose, but for microwave equipmen, do an internet search on "microwave compnonents", e.g. Watkins Johnson is an older (still in business?) microwave house

RE: transmission on 2.4 -2.5 ghz

You need to be more specific/clear with your requirement.

"need to transmit a signal" -- any transmitter that can tune to 2.4 - 2.5Ghz can do that.  Will it serve any purpose or be useful?  now that's the question.

"range of 1 mile" -- one mile through space, through fog, clouds, rain, sleet, snow.  Through trees, shrubs, buildings, people, cars, trucks, concrete...???

And based on your handle--are you in the UK?

Do you want to do this for less than a specific amount of currency?

Nevertheless, here is a likely solution:

You want to transmit data, likely at a decent throughput, over a clear radio line of sight distance of one mile.  (Trees, and virtually everything else mentioned to various degrees, will distort your signal and either degrade throughput or make the radio link altogether unusable).

There are a huge number of solutions that are not very expensive in the 2.4GHz, unlicensed, ISM frequency band.  Most utilize the 802.11b protocol (or are backward compatible with it).

Some popular manufacturers are:


Some good sources for this type of equipment are:

Most all of those sites have tips, primers and other documents to help you define your needs.

If clutter (trees, buildings, etc.) ARE an issue, your best bet at this time is the 900Mhz gear from http://www.waverider.com or in a few weeks, Alvarion is planning to introduce their 900Mhz OFDM product.

Hope this helps you a little.

RE: transmission on 2.4 -2.5 ghz


Please go to www.radiolinx.com for more assistance. 2.4 GHz is in the ISM band and is license-free but requires specific country approvals. RadioLinx Products have been approved internationally.

You will want to discuss the data packeting (ie, Ethernet or serial end device connection and protocol) you wish to transmit over air. Security will be a concern, so encryption methodology should be reviewed. RadioLinx products are industrialized and very secure.

WJG ProSoft Technology

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close