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Sponsor RF Cafe for as Little as $175 Per Month
*** Please note new terms effective January 1, 2019 ***

RF Cafe on a Samsung S4 Smartphone

RF Cafe on a Samsung S4 smartphone. At the time of this writing, RF Cafe scores an "Awesome! This page is mobile-friendly" on Google's Mobile-Friendly Test.

RF Cafe typically receives 8,000-15,000 website visitors each weekday and about half that on weekends (see chart). RF Cafe is a favorite of engineers, technicians, hobbyists, and students all over the world. With around 8,000 pages in the Google search index, RF Cafe returns in favorable positions on many types of key searches, both for text and images. New content is added on a daily basis. Items added on the homepage are broadcast on LinkedIn.

1/1/2020 Update: Website statistics for November 2019 posted.

Please refer to the screen capture below for Banner Ad, Highlighted Ad, and Hyperlinked Logo formats and locations. Banners and Hyperlinked Logos appear on every page of RF Cafe as shown. Hyperlinks point directly to your website. Please contact me if you are interested. Web page layouts do change occasionally, but order of ad precedence is always retained.

Please contact me with any questions.

<click image for larger version>

Sponsorship Opportunities - RF Cafe

NOTE: I reserve the option to refuse ads which I do not feel are appropriate for the RF Cafe mission.

3rd-Party Advertising Options:

3rd-party advertising on RF Cafe is being provided by Google Ad Words, IHS (GlobalSpec), and Yahoo!|Bing Network. Please contact them via the provided hyperlinks for information; customer service agents are available for assistance if needed. Note, however, that the appearances of 3rd party ads represents only about 5% of the total.

If this page is still available by the time you click the link, it has a good synopsis on click-through rates (CTR) and cost per click (CPC). For the general Technology category, CTR is 0.85% an CPC is $0.20 based on ad impressions on websites like RF Cafe that might host Google Ads. Keep in mind that Technology includes everything from cellphones and televisions to power dividers and coaxial cable.

Website Traffic Trend - November 2019

RF Cafe Web Statistics - November 2019

RF Cafe Web Statistics - November 2019

Banner Advertising slots #1 - #5 are set up such that each slot randomly displays private banners for up to five separate companies*. Slot #6 is shared by typically five or more separate companies (a low cost way to have a banner ad). You provide the Banner, Highlighted Ad graphics as defined below.

#1728x90 px$350
#2160x600 px$350
#3160x600 px$300
#4160x600 px$275
#5160x600 px $250
#6728x90 px$175
  • Contract Length = 3 months
  • Slots #1 - #6 may have up to six (6) separate designs, each with a unique URL to your website - all included at the rate shown. They will all share your impression ratio*.
  • Banner Ad Specifications:
    728x90 - Width = 728 px, Height = 90 px
    160x600 - Width = 160 px, Height = 600 px
    File Format = JPG or GIF (static, no animation)
    File Size = 45 kBytes (maximum)
    Hyperlink = Your company website
    Content = Any combination of text & graphics
  • Highlighted Ad Specifications (see screen shot):
    Width = 330 pixels, Height = 400 pixels
    File Format = JPG or GIF (static, no animation)
    File Size = 45 kBytes (maximum)
    Hyperlink = Your company website
    Content = Any combination of text & graphics
    Vendor Page Placement = Up to 5 pages
          related to your products and/or services.
          I will suggest, but you have final say.
          Additional pages are $5/page/month
  • See 78x26-pixel Logo specs below.
  • The rel="sponsored" tag is inserted into all coded hyperlinks.
  • See other Notes below.
  • See screen shot
    Width = 78 pixels, Height = 26 pixels
    File Format = GIF (static, no animation)
    File Size = 1.2 kBytes (maximum)
    Hyperlink = Your company website
    Placement = Top of page border, displays on
                        every pageview
  • See Important Notes below.

Important Notes:

  • Discounts are not offered at this time.
  • Pixel dimensions and maximum file sizes listed are firm. If you have trouble meeting the file size, I will be glad to help - there has never been an ad I couldn't fit.
  • I do not collect page traffic or link click statistics for advertisements. Your website server statistical analysis is a much better reporter of inbound links from RF Cafe than I or anyone else can provide.
  • To the best of my knowledge the page layouts shown are representative of all pages on RF Cafe.
  • I make page layout changes from time to enhance performance, but regardless of the layout, your ad(s) will retain relative location order.
  • 78x26-px logos in upper right corner are provided at no additional cost, and are subject to size, location, and format change as deemed necessary for optimizing space usage. These appear on all pages with every page view.
  • * Your banner(s) will be displayed at approximately a 1:5 rate in Slots 1-5. I usually run third-party advertisements or my own RF Cafe software ads along with private advertisers in the banner slots, at a display rate of about 1:20.
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About RF Cafe
Kirt Blattenberger - RF Cafe Webmaster
Copyright: 1996 - 2024
    Kirt Blattenberger,

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The Internet was still largely an unknown entity at the time and not much was available in the form of WYSIWYG ...

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

My Hobby Website:  AirplanesAndRockets.com