RF Cafe Software

RF Cascade Workbook 2005 - RF Cafe
RF Cascade Workbook

Calculator Workbook
RF Workbench
Smith Chartâ„¢ for Visio
Smith Chartâ„¢ for Excel
RF & EE Symbols Word
RF Stencils for Visio

About RF Cafe

Kirt Blattenberger - RF Cafe WebmasterCopyright
1996 - 2022
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:

Try Using SEARCH
to Find What You Need. 
There are 1,000s of Pages Indexed on RF Cafe !

Electronics World Cover,TOC,and list of posted Popular Electronics articles QST Radio & TV News Radio-Craft Radio-Electronics Short Wave Craft Wireless World About RF Cafe RF Cafe Homepage RF Cafe in Morse Code Google Search of RF Cafe website Sitemap Electronics Equations Mathematics Equations Equations physics Manufacturers & distributors Engineer Jobs Twitter LinkedIn Crosswords Engineering Humor Kirt's Cogitations Engineering Event Calendar RF Engineering Quizzes AN/MPN-14 Radar 5CCG Notable Quotes App Notes Calculators Education Magazines Software,T-Shirts,Coffee Mugs Articles - submitted by RF Cafe visitors Simulators Technical Writings RF Cafe Archives Test Notes RF Cascade Workbook RF Stencils for Visio Shapes for Word Thank you for visiting RF Cafe!

Advertise on RF Cafe for as Little as $35/Month
*** Please see the new advertising plan details below ***

RF Cafe on a Samsung S4 SmartphoneRF Cafe typically receives 8,000-12,000 page views each weekday and about half that on weekends (see chart at bottom). RF Cafe is a favorite of engineers, technicians, hobbyists, and students all over the world. With more than 6,600 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, Twitter, and Facebook. Click the thumbnail on the left to see how RF Cafe looks 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.

Advertising Options:

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.

I keep terms simple and quality high.

Updated 6/28/2016
Sponsorship on 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. Also, I only run 3rd-party ads as backfill and often none are running anywhere. At those times, the only way to be represented on RF Cafe is via private advertising plans.

RF Cafe Website Visitor Statistics:
March 2017

These charts were generated from the websites statistics data gathered by my web host, Hostek.com. This is raw data with no manipulation or filtering (I added the "weekend" label). Peaks are midweek and valleys are weekends.

Website Traffic Statistics, World Countries - RF Cafe 

Website Traffic Trend - March 2017

Website traffic statistics, World Countries - RF Cafe

World Countries

Note in website statistics chart above that Page Views are about 3x Visits, meaning on average visitors view about 3 pages per visit - that's pretty good for any website.

All banner slots are set up to randomly display ads from 3 different companies, meaning your ad will display on average 1 out of 3 page views. Rates given are for occupying a slot at that 1:3 rate. Please read my research on AdBlock Plus to see how your banners will always display on RF Cafe, even for people running ad blocking software.

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 $225

If available, you are welcome to buy more than one instance in a slot, which will cause your banner to be displayed more often. Terms include a minimum 3-month contract and up-front payment. All Graphical Banner Advertising plans include the features of the Maximum Exposure Ad plan.

Also, you may submit up to 3 separate banner designs that will all be displayed on average at the same rate in your slot. Each banner can have its own unique URL for a hyperlink back to your website.

Maximum Exposure Ad Pricing:

  • $150/mo. for placement on up to 5 Vendor pages on RF Cafe, and $5/mo. for each additional page.
  • These ads appear only on Vendor listing pages.
  • Ads contain textual content, a hyperlinked company logo AND also includes 2 or 3 small product image thumbnails in the body of the ad.
  • Width is ~340 px and height is ~350-400 px. I do the design on these ads.
  • Hyperlinked Logo is placed in a dedicated slot in upper right page border.
  • Hyperlinks point to up to 5 product pages on your company website.

Standard Highlighted Ad Pricing:

  • $35/mo. for up to 3 Vendor pages on RF Cafe, and $4/mo. for each additional page.
  • These ads appear only on Vendor listing pages.
  • Ads contain textual content and a hyperlinked company logo.
  • Width is ~340 px and height is ~300-325 px. I do the design on these ads.
  • Hyperlinked Logo is placed in a shared (~3-5 per slot) slot in upper right page border.
  • Hyperlinks point to up to 3 product pages on your company website.

Important Notes:

  • 3-month terms are offered for Maximum Exposure and Banner advertising plans. 6-month terms are offered for the Standard plan.
  • Discounts are not offered at this time.
  • Pixel dimensions listed are maximum, but banners can be smaller if preferred.
  • You must supply the banner graphic in a GIF format (no animation), with a file size not larger than 75 kBytes. If you have trouble meeting the file size, I will be glad to help - there has never been an instance where I couldn't meet it. A hyperlink will direct visitors to the URL you provide.
  • Because of Ad Blocking software, only static images can be used. In order to defeat their detection schemes, I need to process the image, but it will display like the original. Please read my research on AdBlock Plus.
  • 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 vertical 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.
  • Payment is required prior to banner ad runs.
  • From time to time I run a test advertisement along with others in the banner slots, at a display rate of not greater than 1:7.