Information Net for November 11

Antenna Projects

Read by: RICK N9GRW

If you don’t have an antenna up for 10 meters, here are some antenna projects for you to try and see what all the 10 meter fuss is about. This winter looks to be a good one for 10 meters, so put up a simple antenna and work some great stuff! Remember, Technicians can use 10 meters, too! And with the ARRL 10 Meter Contest coming up December 14-15, opportunities to work a LOT of DX this season are every-where!

No room at your house or apartment for an antenna? A 10 meter dipole is less than 17 feet long and can be thrown up into a tree in a park or a family member’s back yard temporarily for a couple hours of DX fun.

Read by: RANDY KJ4TFU

Here are some 10 meter antenna ideas: if you want the instructions send George an e-mail with “antennas” in the subject line:

  • A simple non-directional antenna for 10 meters for limited space
  • 2-element yagi for 10 meters
  • A bit more complex: A short, 3-element beam for 10 meters
  • A four-band vertical for the Novice (includes 10 meters)
  • You can also put a 10 meter ham-stick on the roof of your car and operate mobile from almost any parking lot.

Give one of these projects some consideration and get in on the 10 meter fun this winter!

Five examples of having fun with D-STAR

Read by: PAUL KJ4WQN

Have you ever thought about if you could access the Internet from ham radios? Or have you ever thought if you could communicate with a friend in another city or country using a simple handy radio? Or want to send a simple text message, or know the call sign of whom is on the air right now? The D-STAR system is such a magical system; you can easily realize these functions without using a tricky gadget or complicated facilities.

Which D-STAR radio is right for me? Frequently asked questions about D-STAR

Read by: MARTHA KJ4RIQ

Q: What does “D-STAR” stand for?
A: The D-STAR stands for Digital Smart Technologies for Amateur Radio. It is an open standard digital communication protocol established by JARL (Japan Amateur Radio League)

Q: What can I do with the D-STAR radio?
A: 4.8kbps digital voice (DV) mode and 128kbps data (DD) mode communications are available. When using DD mode with a PC and the D-STAR radio, high speed data communication is possible. *DD mode is available with ID-1 only.

Q: Can I send data with a voice transmission?
A: Yes, you can. In DV mode operation only, you can simultaneously send up to 950bps of data, such as call sign, short data message or GPS position with a voice transmission.

Q: Can I make a call with foreign countries?
A: Yes, you can. The Internet gateway allows you to relay your call to a remote D-STAR repeater over the Internet. The D-STAR repeater call sign and IP address must be registered to the gateway server. Some restrictions may apply based on specific country regulations.

Q: Can I use the D-STAR repeater without connecting to the Internet?
A: Yes, you can use a D-STAR repeaters a local repeater. You can also communicate with other D-STAR radios directly.

Read by: NICKI KF4DHK

Q: Can I receive a call only when the call is intended for me?
A: Yes, you can. the call sign squelch function opens the squelch only when you call sign is received.

Q: How do I set a repeater call sign when I make a call to a desired station using a D-STAR repeater?
A: When you communicate with other D-STAR stations using a D-STAR repeater, it is necessary to set the repeater’s call sign in RPT1/RPT2 as well as the desired station call sign and your own call sign.

For example, when you make a call in the same zone (without using the Internet gateway), set the uplink repeater call sign in RPT1 and the downlink repeater call sign in RPT2. Set “CQCQCQ” for the desired station call sign, when you make a CQ call.

When you make a call in another time zone using the Internet gateway, set the uplink repeater call sign in RPT1 and the gateway call sign in RPT2. The gateway repeater has “G” setting for the8th-digit. Set “/” plus downlink repeater call sign at the desired station call sign, when you make a CQ call.

Read by: JERRY KE4ETY

Q: How can D-STAR help first responders using D-RATS
A: D-RATS is a multi-platform integrated tool for communication using D-STAR radios. With only a pair of radios (or an entire repeater stack) a variety of data transmission methods are supported, including:

  • Instant-message chat
  • Automatic beacon messages
  • File transfers with error detection
  • Structured forms
  • GPS position reports
  • And much more!

Read by: LARRY KC4ZOA

I learned that about 10 of the remaining WW II Navaho Code Talkers will be joining us for the day’s activities at MTSU Saturday. The group have completed a 25 city tour and this is the last stop this group, all in their 90s, will make together. Their visit to MTSU will be the last appearance they will ever do together; they will head back home to different reservations, I believe all in the west, after this event. They want to be available for autographs and pictures, anything to get the word out about the Navajo involvement in WWII.

Code talkers were people who used obscure languages as a means of secret communication during wartime. The term is now usually associated with the United States soldiers during the world wars who used their knowledge of Native-American languages as a basis to transmit coded messages. In particular, there were approximately 400-500 Native Americans in the United States Marine Corps whose primary job was the transmission of secret tactical messages. Code talkers transmitted these messages over military telephone or radio communications nets using formal or informally developed codes built upon their native languages. Their service improved communications in terms of speed of encryption at both ends in front line operations during World War II.

Thanks!

Tony V. Johnston, Ph.D.
Professor
School of Agribusiness and Agriscience
Middle Tennessee State University

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