VE2DPE's Ham Radio Blog


This ham radio blog is not a "traditional" blog. What gets posted here is permanent in nature, rarely "time sensitive".

You will find here, in addition to amateur-radio-related news and events, posts about ham radio equipment such as: transceivers, receivers, antennas, software and more.

In other words, anything I find worthy of note about amateur radio.

HamRadioSecrets.com
Blog

More Ham Radio QRP Kits Manufacturers

This is an additional page full of ham radio QRP kits manufacturers. It completes my section on amateur radio kits.

Continue reading "More Ham Radio QRP Kits Manufacturers"

Get More Out Of HRS

For more out of HamRadioSecrets.com get the #hamradio ebooks on #amateurradio HF antennas.

Continue reading "Get More Out Of HRS"

Ham Radio - Amateur Radio Fascinating Secrets

Ham radio or amateur radio has fascinated generations. This Web site reveals the secrets behind its enduring popularity and usefulness.

Continue reading "Ham Radio - Amateur Radio Fascinating Secrets"

Matching Grounded Emitter VHF Transistor to Load

Gino, G3IOJ,asks: At the collector pin the impedance seen when looking into the transistor is determined by the collector to base capacity. The collector load necessary for getting maximum output power P is Vsq/2R where V= the supply voltage rail and R is the required load. If the base input impedance of the following transistor is r + jwL the interstage matching circuit must transform r+jwL to Vsq/2R right across the frequency passband of the amplifier. But different amplifiers have different output powers even if they use the same supply voltage so how is it possible to provide different values of Vsq/2R when everything else remains constant? Gino further ads: The collector to ground impedance of an earthed emitter VHF transistor amplifier is 1/Wcob and this is a lot lower than most collector loads used. Therefore the transistor is not matched to its load. How does it achieve a 70% efficiency in class C bias therefore?

Please send comments to http://bit.ly/29PymlI and I will relay to Gino. Tks. VE2DPE

Matching Grounded Emitter VHF Transistor to Load

Gino, G3IOJ,asks: At the collector pin the impedance seen when looking into the transistor is determined by the collector to base capacity. The collector load necessary for getting maximum output power P is Vsq/2R where V= the supply voltage rail and R is the required load. If the base input impedance of the following transistor is r + jwL the interstage matching circuit must transform r+jwL to Vsq/2R right across the frequency passband of the amplifier. But different amplifiers have different output powers even if they use the same supply voltage so how is it possible to provide different values of Vsq/2R when everything else remains constant? Gino further ads: The collector to ground impedance of an earthed emitter VHF transistor amplifier is 1/Wcob and this is a lot lower than most collector loads used. Therefore the transistor is not matched to its load. How does it achieve a 70% efficiency in class C bias therefore?

Please send comments to http://bit.ly/29PymlI and I will relay to Gino. Tks. VE2DPE

Support for 2M/70cm Vert For Camping

Used telescopic pole, squeegee and round galvanized metal cover from a storage bin as platform on top.

7.060 MHz For Emergency

Ham radio operators are asked to avoid 7.060 MHz which is being used by Ecuador emergency rescue traffic.

Continue reading "7.060 MHz For Emergency"

A Request From A New Amateur

My father was one of the first hams in the country. John A Iller, lived on Finney Ave in Seattle at the time.

I just got my Technician class license and I am trying to find out what my dad's call sign was.

How would I research this? Does anyone still have any of the old US call sign books from the 50's?

Dan Iller - Clackamas, OR - dan.iller [a t] yahoo.com

FTM-400XDR

Will be on APRS/SMSGTE on camping trips this summer. The APRS (pdf) doc is 95 pages! Lots to learn & discover.

Continue reading "FTM-400XDR"

Alpha 6-80 Meter EzMilitary Antenna

Anxious to compare it with homemade end-fed, both with Z-11Pro II tuner while camping.

Continue reading "Alpha 6-80 Meter EzMilitary Antenna"


This Ham Radio Blog
Is Yours Too!

For those of you who like to be able to intervene and share something of significance with the other ham radio enthusiasts who visit this Web site by the hundreds each day, there is a very unique way of doing that here!

See the instructions and entry form on this page.

A blog post and a Web page! Yes. You get double and permanent exposure to our hundreds of visitors daily! Free of charge, of course.

After your text has been approved the "nutshell" version of your text will be posted in this blog. It will consist of your title and a short description. Your complete text will be posted on its own permanent page on this Web site. Your blog post will have a live link to it.

All our readers who subscribe to our RSS feed will be instantly alerted of your post.

Make your intervention significant and it will be noticed! It will never get buried under hundreds of other posts. I guarantee it!

This Ham Radio Blog's
Role

This ham radio blog plays an essential role in my "triple action" communication strategy.

This Web site is especially designed to assert itself among amateur radio related Web sites. (How? See the "Powered by..." at the bottom of each page).

This blog, on the other hand, is designed to offer an extra access to the Web site's content (through RSS feeds), thus augmenting its "visibility" on the Web.

Last, but not least, this blog also enables me to publish special timely posts containing my comments on amateur radio related news and events, as they happen.

In other words, I am using every available channel of communication, on the Web, to make my information accessible to the largest audience possible.

A Proven
Infopublishing Technique

This blog is part of a unique "infopublishing" process that I use to give widespread access to my website's content.

Why use both a Web site and a ham radio blog to reach essentially the same audience?

Why not? It works!

Like so many other things in this world, amateur radio is changing.

This blog's mission is to help you stay tuned to the frequency of exciting changes that are occurring in amateur radio!



73 de VE2DPE
Claude Jollet
7, Rue de la Rive, Notre-Dame-des-Prairies, Québec, Canada J6E 1M9

QTH Locator: FN36gb


Page copy protected against web site content infringement by Copyscape



› My Site Blog





FOUND THIS
SITE
USEFUL?

GET THE EBOOKS


Testimonials



Click here for more testimonials.


VE2DPE
Is a member
in good standing
of

Radio Amateurs of Canada logo
Radio Amateur du Québec inc.
Club Radio Amateur Lanaudière inc.
Quarter Century Wireless Association Inc.

CQ CQ CQ

If you have a question, a comment or a topic you would like me to cover, please do not hesitate to ask here.