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Kirt's Cogitations™ #255
Websites - Wayback™ When

These original Kirt's Cogitations™ may be reproduced (no more than 5, please) provided proper credit is given to me, Kirt Blattenberger.

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   Cog·i·ta·tion [koj-i-tey'-shun] – noun: Concerted thought or
                                        reflection; meditation; contemplation.
   Kirt [kert] – proper noun: RF Cafe webmaster.


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Websites - Wayback™ When

It is interesting to see how familiar websites have evolved over the years. If you began using the Internet when I did back in the early 1990s, you remember the 4800 baud dialup connections and RF Cafe - NCSA Mosaicwatching the little globe on the Mosaic browser spin round and round while waiting for a website to appear. Your anticipation with each new website was a mixture of emotions - willing to suffer the long download times for the treat of seeing cool looking graphics (VGA quality in 256 colors if you were lucky), but being somewhat relieved by all text in order to have a reasonable page load time. Still, it was a big improvement over dialing into local bulletin board services, using a copy of Kermit in hopes of finding a useful file. CompuServe and AOL made things a bit better for the layman... for a while.

RF Cafe - Vector Video StandardsPage content has greatly increased over time for a number of reasons, mainly due to larger display sizes, faster connections, and the importance of conveying as much relevant information as possible on a single page. As recently as the year 2000, standard computer display screen resolution was still somewhere around 800 x 600 pixels (today it is 1024 x 768). Also as of 2000, most home users had a dialup connection with speeds in the 56k baud range, although actually getting a connection anywhere near 56k baud was rare. Even wireless portable devices of today are realizing data transfer speeds better than what we had ten years ago, so tolerating loading of modest size pages is fairly easy. Finally, as the Internet became an increasingly important venue for conducting business, gathering information and, more recently, personal relationships (sigh!), web page content increased in hopes of wowing and capturing the interest of visitors, thereby having them realize that yours is the best page they have ever found and is worth bookmarking for frequent returns. 

In the early days of the Internet, conscientious web designers attempted to use minimal graphics and rely on thoughtful page layout using HTML formatting to place text and tables in strategic areas to give the illusion of a graphical page without the bandwidth burden. Unbelievably, there were websites that consisted of a single large graphic that contained all the pictures and text; they took forever to load and presented you with a blank screen until all the bits had transferred. Overly wasteful Flash type entry screens are modern day equivalents of that. Many of us studied reports on Web user likes and dislikes for site features, and attempted to accommodate those wishes so as to maximize the visitor's positive impression.

RF Cafe - Google PageRank DiagramAs time went by and broadband connections sped up, it became possible to integrate a larger amount of graphics and text to present more information to the visitor without the time penalty. Search engine optimization (SEO) now dominates web page design philosophy more than anything else since it can profoundly affect the order in which pages are returned during searches. While page ranking algorithms (PageRank) are very complex, the most highly weighted factor is the number of websites that link back to your website, although existing traffic to the page is also a strong contributor.

The Wayback™ Machine, provided by the website Archive.org, captures and stores snapshots of web pages over time, so you can go there, enter the website address of interest, and probably discover what the website looked like many years ago. It contains almost 2 petabytes of data and is currently growing at a rate of 20 terabytes per month. "This eclipses the amount of text contained in the world's largest libraries, including the Library of Congress." Records begin around 1996.

RF Cafe Kirt's Cogitation - Mr. Peabody's Wayback MachineFor those how are not familiar with the concept, the Wayback Machine was first a feature of a cartoon from back in the 1960s. It was used by Mr. Peabody (a talking dog) as part of his "Peabody's Improbable History" program where he and his trusty boy companion, Sherman (no, he doesn't bark), travel back in time to explore an inane version of bygone world and U.S. events. It was corny.

Archival websites like Archive.org, Google, and others, are used quite often by law enforcement and legal researchers to gather evidence for trials. Recent events in U.S. politics have exposed situations where websites would pull down information after a public outcry had challenged a person or organization for their statements and/or policies. People are learning that in this Information Age, everything they say can and will be used against them, even if they thought it was only to be seen/heard by a privileged few. Even employers are searching archives of web pages in their vetting of potential employees. You have been warned.

I decided to take a look at what the websites of RF Cafe's advertisers looked like in the days of yore. Most had at least one screen shot in the archives. All screen captures are done in the same browser window size (just wide enough to enclose the RF Cafe screen), and then proportionally resized to a common height, so the change in page width is apparent. Some web pages were (and still are) set up to automatically fill the available browser width, like RFMD's, so a width comparison is not possible. They are in random order below, so you might want to do a Crtl+F to search for a company name on the screen.

In some cases the company is a conglomeration of multiple other formerly independent companies, like with Spectrum Microwave which includes the former Salisbury Engineering, Q-Bit, Amplifonix, and others. With those, I tried to find examples of the former company's web pages. Also, for some reason the Wayback™ Machine does not always capture the graphic images associated with the page, so in the place of the intended images are the white placeholders and the annoying little red "x." Because of that, I do not always have the earliest available screen shot here, but instead used the most complete page available. Some websites are so new that the Wayback™ Machine has not found them yet.

You can see in the first example that RF Cafe has changed just a little since its inception in 1999. It was originally a step up from my RFTools website on the AOL personal homepage system. RFTools.com was not available, and the [Something]Cafe.com type names were popular at the time, so RFCafe.com was born. It has since grown to be a major player in the RF engineering web space. Because of dedicated visitors (like you), my many advertisers have provided the opportunity for me to run RF Cafe on a full-time basis. Thanks to them and to you.

Let me know if you would like to have your company's website added to the list.


RF Cafe - Wayback™ Machine website archive: click to view full-size RF Cafe
RF Cafe - 1999
RF Cafe - Click to view full-size current RF Cafe
RF Cafe - 2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Anatech Electronics
Anatech Electronics
AMCrf
2004
RF Cafe - Click to view full-size current Anatech Electronics
Anatech Electronics
AMCrf
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Analog Devices
Analog Devices
1997
RF Cafe - Click to view full-size current Analog Devices
Analog Devices
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size GigaLane
GigaLane
2002
RF Cafe - Click to view full-size current GigaLane
GigaLane
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size JFW Industries
JFW Industries
1997
RF Cafe - Click to view full-size current JFW Industries
JFW Industries
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Stealth Microwave
Stealth Microwave
2004
RF Cafe - Click to view full-size current Stealth Microwave
Stealth Microwave
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Linx Technologies
Linx Technologies
1999
RF Cafe - Click to view full-size current Linx Technologies
Linx Technologies
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size RFMD
RF Micro Devices
1997
RF Cafe - Click to view full-size current RFMD
RF Micro Devices
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Skyworks Solutions
Skyworks Solutions
2003
RF Cafe - Click to view full-size current Skyworks Solutions
Skyworks Solutions
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Narda Microwave East
Narda Microwave East
2000
RF Cafe - Click to view full-size current Narda Microwave East
Narda Microwave East
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Orbel
Orbel
2001
RF Cafe - Click to view full-size current Orbel
Orbel
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Amplifonix   RF Cafe - Wayback™ Machine website archive: click to view full-size Q-Bit
Amplifonix          Q-Bit    
 1999             2000
RF Cafe - Wayback™ Machine website archive: click to view full-size Salisbury Engineering
Salisbury Engineering
1996
RF Cafe - Click to view full-size current Spectrum Microwave
Spectrum Microwave
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Antenna Factor
Antenna Factor
1999
RF Cafe - Click to view full-size current Antenna Factor
Antenna Factor
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size antennas.us
antennas.us
2002
RF Cafe - Click to view full-size current antennas.us
antennas.us
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size RFHIC
RFHIC
2001
RF Cafe - Click to view full-size current RFHIC
RFHIC
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Alliance Test Equipment
Alliance Test Equipment
2005
RF Cafe - Click to view full-size current Alliance Test Equipment
Alliance Test Equipment
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Jyebao
Jyebao
1998
RF Cafe - Click to view full-size current Jyebao
Jyebao
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Z-Communications
Z-Communications
1996
RF Cafe - Click to view full-size current Z-Communications
Z-Communications
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size European Antennas
European Antennas - 2000
(now part of Cobham)
RF Cafe - Click to view full-size current European Antennas
European Antennas - 2009
(now part of Cobham)
RF Cafe - Wayback™ Machine website archive: click to view full-size Instruments for Industry
Instruments for Industry
(IFI) - 1996
RF Cafe - Click to view full-size current Instruments for Industry
Instruments for Industry (IFI) - 2009 
RF Cafe - Wayback™ Machine website archive: click to view full-size MECA Electronics
MECA Electronics
2001
RF Cafe - Click to view full-size current MECA Electronics
MECA Electronics
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Axsem
Axsem
2007
RF Cafe - Click to view full-size current Axsem
Axsem 2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Connector City
Connector City
2001
RF Cafe - Click to view full-size current Connector City
Connector City
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size 3Gmetalwork
3Gmetalworx
2003
RF Cafe - Click to view full-size current 3Gmetalwork
3Gmetalworx
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Innovative Power Products
Innovative Power Products
2006
RF Cafe - Click to view full-size current Innovative Power Products
Innovative Power Products
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Zeland Software
Zeland Software
1997
RF Cafe - Click to view full-size current Zeland Software
Zeland Software
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Microphase
Microphase
1997
RF Cafe - Click to view full-size current Microphase
Microphase
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size American Microwave
American Microwave
2003
RF Cafe - Click to view full-size current American Microwave
American Microwave
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Amplical
Amplical 2004
RF Cafe - Click to view full-size current Amplical
Amplical
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Dow-Key Microwave
Dow-Key Microwave
1997
RF Cafe - Wayback™ Machine website archive: click to view full-size
Dow-Key Microwave
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size NuWaves
NuWaves Engineering
2003
RF Cafe - Click to view full-size current NuWaves
NuWaves Engineering
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Pulsar microwave
Pulsar Microwave
2000
RF Cafe - Click to view full-size current Pulsar microwave
Pulsar Microwave
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Colby Instruments
Colby Instruments
2004
RF Cafe - Click to view full-size current Colby Instruments
Colby Instruments
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size RFAC Solutions
RFAC Solutions
2005
RF Cafe - Click to view full-size current RFAC Solutions
RFAC Solutions
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Noise/Com
Noise/Com
2002
RF Cafe - Click to view full-size current Noise/Com
Noise/Com
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size BC Power Systems
BC Power Systems
1997
RF Cafe - Click to view full-size current BC Power Systems
BC Power Systems
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Microwave Circuits
Microwave Circuits
2004
RF Cafe - Click to view full-size current Microwave Circuits
Microwave Circuits
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size PCB Material World
PCB Material World
2006
RF Cafe - Click to view full-size current PCB Material World
PCB Material World
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Highland Technology
Highland Technology
1998
RF Cafe - Click to view full-size current Highland Technology
Highland Technology
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Haynes-Bent
Haynes-Bent
2004
RF Cafe - Click to view full-size current Haynes-Bent
Haynes-Bent
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Isotec
Isotec
2005
RF Cafe - Click to view full-size current Isotec
Isotec
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Lemos international
Lemos International
2000
RF Cafe - Click to view full-size current Lemos International
Lemos International
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Empower RF Systems
Empower RF Systems
2002
RF Cafe - Click to view full-size current Empower RF Systems
Empower RF Systems
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Applied Computational Sciences
Applied Computational
Sciences (ACS)
2001
RF Cafe - Click to view full-size current Applied Computational Sciences
Applied Computational
Sciences (ACS)
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Praxsym
Praxsym
1999
RF Cafe - Click to view full-size current Praxsym
Praxsym
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Test Equipment Connection
Test Equipment Connection
2000
RF Cafe - Click to view full-size current Test Equipment Connection
Test Equipment Connection
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size RF Dude
RF Dude
2002
RF Cafe - Click to view full-size current RF Dude
RF Dude
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Amplifier Solutions
Amplifier Solutions
2004
RF Cafe - Click to view full-size current Amplifier Solutions
Amplifier Solutions
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Applied Wave Research
Applied Wave Research
2004
RF Cafe - Click to view full-size current Applied Wave Research
Applied Wave Research
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Networks International
Networks International
1999
RF Cafe - Click to view full-size current Networks Internatinoal
Networks International
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size RFtronics
RFtronics
2006
RF Cafe - Click to view full-size current RFtronics
RFtronics
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size JQL Electronics
JQL Electronics
2003
RF Cafe - Click to view full-size current JQL Electronics
JQL Electronics
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Noisewave
Noisewave
2005
RF Cafe - Click to view full-size current Noisewave
Noisewave
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Wenteq
Wenteq
2003
RF Cafe - Click to view full-size current Wenteq
Wenteq
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Polyphase Microwave
Polyphase Microwave
2005
RF Cafe - Click to view full-size current Polyphase Microwave
Polyphase Microwave
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size American Standard Circuits
American Standard Circuits
2001
RF Cafe - Click to view full-size current American Standard Ciruits
American Standard Circuits
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size KR Electronics
KR Electronics
2000
RF Cafe - Click to view full-size current KR Electronics
KR Electronics
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size vidaRF
vidaRF
2007
RF Cafe - Click to view full-size current vidaRF
vidaRF
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Comdel
Comdel 2000
RF Cafe - Click to view full-size current Comdel
Comdel
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Advanced Test Equipment
Advanced Test Equipment Rentals
1997
RF Cafe - Click to view full-size current Advanced Test Equipment Rentals
Advanced Test Equipment Rentals
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Star Microwave
Star Microwave
2004
RF Cafe - Click to view full-size current Star Microwave
Star Microwave
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Reactel
Reactel
2000
RF Cafe - Click to view full-size current Reactel
Reactel 2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Fotofab
Fotofab
2001
RF Cafe - Click to view full-size current FotoFab
Fotofab
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Tharsus Engineering
Tharsus Engineering
2001
RF Cafe - Click to view full-size current Tharsus Engineering
Tharsus Engineering
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Sunshine Design Engineering Services
Sunshine Design Engineering Services
2003
RF Cafe - Click to view full-size current Sunshine Design Engineering Services
Sunshine Design Engineering Services
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Coaxial Dynamics
Coaxial Dynamics
1996
RF Cafe - Click to view full-size current Coaxial Dynamics
Coaxial Dynamics
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Vector Telecom
Vector Telecom
2007
RF Cafe - Click to view full-size current Vector Telecom
Vector Telecom
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size PedaSoft
PedaSoft
2007
RF Cafe - Click to view full-size current PedaSoft
PedaSoft
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Boonton
Boonton
1998
RF Cafe - Click to view full-size current Boonton
Boonton
2009
RF Cafe - Wayback™ Machine website archive: click to view full-size Procyon PCB
Procyon PCB
2004
RF Cafe - Click to view full-size current Procyon PCB
Procyon PCB
2009
   




Posted 9/8/2009
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RF Cascade Workbook
RF Cascade Workbook is a very extensive system cascaded component Excel workbook that includes the standard Gain, NF, IP2, IP3, Psat calculations, input & output VSWR, noise BW, min/max tolerance, DC power cauculations, graphing of all RF parameters, and has a graphical block diagram tool. An extensive User's Guide is also included. - Only $35.
RF system analysis including
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RF & EE Symbols Word
RF Stencils for Visio

Product & Service Directory
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RF Cafe Software

Calculator Workbook
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Smith Chart™ for Visio
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