MARTIN - G8JNJ

I added some additional thermal images and notes to the Comet CHA-250 Page

Spring cleaning - so I updated various sections to correct minor errors and clarify points.

Added photos to Vee beams in Current Projects.

Archived some older items as PDF files.

Regards,

Martin

Updates to:-

Comet CHA250 & BB7V details

G8JNJ broadband vertical

Current projects including Chameleon V1

More stuff in the pipeline.

Hi All,

I have updated several pages as a holding measure, until I get more time to produce better documentation.

With the arrival of Winter weather in the UK, it looks like I'll be doing this sooner rather than later - except the good conditions on 10m are very distracting.

Regards,

Martin - G8JNJ

Hi All,

Just a quick update to Variable pitch normal mode helix antennas on the current projects webpage.

Regards,

Martin - G8JNJ

Hi All,

Sometime since the last updates, but I have added two revised documents to the index

http://g8jnj.webs.com/PRC%20320%20Modifications%20(V1.5).pdf

This shows:-

•How to add LSB selection via the mode switch in plce of CW(W)

•How to remove the 2KHz difference between the dial frequency and carrier frequency

•How to use the existing meter to display received signal strength

•How to add 160m (1.8 to 2.0 MHz)

•How to reduce Hiss on RX

http://g8jnj.webs.com/PRC%20320%20Power%20supply%20module%20faults.pdf

Includes hints & tips in addition to circuit diagrams with working currents and voltages

Martin - G8JNJ

Hi All,

I've just updated the Variable pitch helical antenna section of the current projects page.

Regards,

Martin - G8JNJ

Hi All,

Sometime since the last updates, but I have added a new document

http://g8jnj.webs.com/PRC%20320%20Modifications%20(V1.2).pdf

This shows:-

• How to add LSB selection via the mode switch in plce of CW(W)
• How to remove the 2KHz difference between the dial frequency and carrier frequency
• How to use the existing meter to display received signal strength
• How to reduce Hiss on RX

Enjoy !

Martin - G8JNJ

Hi All,

Sorry there have not been any updates recently.

I've been busy working on a new concept of broadband antenna, which is subject to a patent application.

The prototypes are working very well, and if everything goes to plan the design should make it to market in about a years time.

Hopefully once the dark mornings / evenings and wet / cold weather start to fade away, there will be more new projects and updates to the site.

Regards,

Martin

Hi All,

I've made some minor updates to the Comet & Diamond broadband antenna notes in order to clarify some of the diagrams.

Regards,

Martin