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Sponsor RF Cafe for as Little as $40 Per Month

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 more than 11,000 unique 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.

3/30/2020 Update: January & February 2020 Visitor Statistics.

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.

<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 - January & February 2020

RF Cafe Web Statistics - January & February 2020

ClustrMaps Record (4/11 through 5/24/2020)

ClustrMaps for RFCafe.com April 11 - May 24, 2020

I set up the ClustrMaps website monitor code to on RF Cafe to get another independent count of web page visits. It ran from April 11 through May 24, 2020 and produced the following data, which is in fairly good agreement with the traffic statistics I get from my web hosting server. The code was removed because it noticeably slowed down page loads since every time a web page was loaded by a visitor, an additional call was made to the ClustrMaps (and others) server.

ClustrMaps for AirplanesAndRockets.com April 11 - May 24, 2020This ClustrMaps data is for my AirplanesAndRockets.com hobby website during the same period.

Banner Advertising slots 1 through 5 randomly displays banners for up to four (4) 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.

Slot Description Price/mo.
#1 728x90 px $350
#2 160x600 px $350
#3 160x600 px $300
#4 160x600 px $275
#5 160x600 px  $250
#6 728x90 px $165
  • Contract Length = 3 months
  • All Banner Slot Advertisers may have up to six (6) separate designs for your company, 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 = 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 = 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.
  • 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.

Standard Highlighted Ad Pricing:

  • $40/mo. for up to 3 Vendor pages on RF Cafe, and $3/mo. for each additional page.
  • These ads appear only on Vendor listing pages.
  • Ads contain textual content and a company logo.
  • Contract Length = 6 months
  • Highlighted Ad Specifications (see screen shot):
    Width = 330 pixels, Height = 200 pixels
    File Format = GIF (static, no animation)
    File Size = 25 kBytes (maximum)
    Hyperlink = Your company website
    Content = Text only + company logo graphic
                                           (150x50-px max)
    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 $3/page/month
  • See 78x26-pixel Logo specs below.
  • 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.
  • The rel="sponsored" tag is inserted into all coded hyperlinks.
  • * Your banner(s) will be displayed at approximately a 1:4 rate in Slots #1, #2, #3, #4 & #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 1:16.
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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 World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while typing up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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


Please Support RF Cafe by purchasing my  ridiculously low−priced products, all of which I created.

These Are Available for Free