A Ham's Eye View Blog
Doug Grant received his first ham radio license from the FCC in 1967 and his BSEE in 1975. He has logged over 30 years in the semiconductor industry, mostly at Analog Devices, where he worked in engineering, marketing, and product line management for a wide range of analog, mixed-signal, RF and wireless products. He has also logged over 500,000 two-way contacts with other radio hams in every country in the world. Doug is currently an independent consultant specializing in semiconductor and wireless technologies.
Receiver protection: a game-changer
Doug Grant
4/24/2012 10:46 AM EDT
Receiver protection is a pretty important issue in radio transceivers of all kinds. Think about it…the receiver front-end is built to amplify very small signals – fractions of a microvolt – and needs to be protected from the output of the transmitter.
post comment
5 comments
last comment
KRagh
While this is a wonderful history, the practical application today stems from TDD systems such as ...
Doug Grant
3/24/2012 9:50 AM EDT
Why can’t the world’s biggest IC company get any market share in the cellular space?
post comment
23 comments
last comment
Hughston
However, deep pockets allow you to buy a company that can compete. I think Intel will do that within ...
Doug Grant
2/27/2012 12:49 PM EST
One thing the framers of regional frequency allocations did not anticipate was the evolution of global mobility.
post comment
7 comments
last comment
Nic Cohen
Excellent article, how would it take to low frequency, the sounds we don't always ...
RF, meet Analog; and his friend Digital.
Doug Grant
1/12/2012 2:11 PM EST
Techniques like digital predistortion and envelope-tracking draw from all three domains…digital, analog and RF, and allow fundamentally non-linear (but power-efficient) amplifiers to behave like linear amplifiers.
post comment
6 comments
last comment
RFguy2
Can someone answer if the RF is digital or analogue in the digital world?
Doug Grant
12/15/2011 3:36 PM EST
I live in New Hampshire. There are several things that happen regularly here.
post comment
18 comments
last comment
divide_by_zero
I should have kept my old '82 VW diesel car. That machine could be started by letting it roll ...
Interference-cost tradeoffs and cheating
Doug Grant
11/13/2011 2:39 PM EST
I’ve been following the excellent series on EMC by the gurus at Kimmel-Gerke Associates. Every engineer should have their materials close to hand when designing any kind of electronic equipment.
post comment
13 comments
last comment
Daryl Gerke
Thanks for the kind comments on our EMC series. For me, it all started with a ham license. Fifty ...
What part of Part 15 didn’t you read?
Doug Grant
10/25/2011 12:50 PM EDT
I saw the recent TI announcement of their 6LoWPAN series of products, and it got me thinking about Part 15 devices in general.
post comment
17 comments
last comment
Frank Eory
Clearly we need the white space spectrum for more ISM.
A Ham’s Eye View: Ham radio, Engineering, and Scouting
Doug Grant
10/3/2011 5:12 PM EDT
A very unique opportunity to pay it forward is coming up on the weekend of October 15-16.
post comment
9 comments
last comment
sheilahranaemathilde
Will the mask stare without The Berkeley String Quartet ? The plate trips! A rectified lawn ...
Doug Grant
9/29/2011 10:13 AM EDT
Welcome to the first installment of a new blog in the EETimes empire. First, a few words of introduction…I’m Doug Grant, amateur radio callsign K1DG.
post comment
24 comments
last comment
Carl Lump
Hi Doug - Congrats on the new blog! Enjoyed all the comments - lots of similarities on my side: ...