Comment on Using an external antenna with your handheld radio by Michael Martens

Was the radio intrinsically safe before the antenna cracked? The reason I’m asking is that being “Intrinsically Safe” is a certification or designation that the radio can perform in hazardous environments.

In that case, i’d say if the antenna is damaged, the radio is no longer safe for those purposes. In all other situations, you could tape up the crack and use the radio normally.

I hope this answers your question.

Michael

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Reduction Gears

Sorry, this is not an Amateur Radio post.

After many months of working with a 3D Printer, I have finally successfully created a working set of interlocking reduction gears, each section provides a 7:1 reduction. This device is about 2 inches in diameter, the total reduction is 14:1.

The original Ring Gear from Thingiverse was modified to create this multi-stage Reduction Gear. My contribution was to modify it as necessary and join two sets together.

Sketchup Model

The transfer plates (with the connecting pins) were assembled by adding the center HEX pin after printing.  Each of the two Reduction Cluster were printer as an assembled single object on the printer. No cleanup or filing was necessary.

Silicon grease is used for lube.

I may increase the size (and with other modification) this could be used as a Light Weight Field Day Antenna Rotor.

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Interesting ………

I read this e-mail on the Flying Pigs QRP Club International e-mail reflector:

Do you need an excuse to take your radio to a park? I try to go out and operate portable as often as I can, but sometimes the motivation is the hardest part. So this year I decided to make my own motivation, and invite some friends.

Announcing:
The Portableradio.org Fall Operating Event!

The rules are the same as ARRL Field Day (with a few minor modifications). Use your favorite log program and submit a summary to a google form available on portableradio.org

The event happens on the same schedule as ARRL Field Day, except on October 21-22, 2017.
Maybe your club does something big for Field Day and you’d like to try something different. Maybe you’ve got a different location you want to test out. Maybe it’s just too darn hot in the middle of the summer where you are. Whatever your reason, join us for the Portableradio.org Fall Operating Event on October 21-22, 2017.

This is a new event, so if you play please submit your summary sheet. The submission link will go live on portableradio.org closer to the event. Results will be posted as soon as possible and updated weekly until the log submission deadline (one month after the event), when they are considered final.

Check out portableradio.org for more details.
73,
N0ECK

At that time of the year up here in the Northeast, this might not be for the feint of heart, as it can get really cold towards the end of October, especially overnight. But then again, sometimes we get a late Indian Summer. Like any Amateur Radio event, participation is the key.  If they can get enough people out to participate, it may grow in the next few years.  If not, and participation is low, well ………… but why dwell on the negatives?

I wish them the best of luck!

72 de Larry W2LJ
QRP – When you care to send the very least!

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