Series Eight Episode Nineteen – Microphones in Amateur / Ham Radio (06 September 2015)

In this episode, Martin M1MRB / W9ICQ is joined by Ed Durrant DD5LP and Matthew Nassau M0NJX to discuss the latest Amateur / Ham Radio news. Colin M6BOY rounds up the news in brief, and this episodes feature is a review of a Microphones in ham radio

 

  • Secondary School Students Decode ISS Images
  • South African 40 MHz (8m) ham radio contact
  • FreeDV digital HF Voice Mode QSO Party
  • Senator Thanks Radio Amateurs
  • FCC Considering Proposal to End Modification of IT devices
  • Expected September Release of 5 MHz in Netherlands
  • Outcome for 5 MHz at WRC-15 Remains in Limbo
  • Improving Amateur / Ham Radio Club Websites

Colin Butler, M6BOY, is the host of the ICQ Podcast, a weekly radio show about Amateur Radio. Contact him at [email protected].

Series Eight Episode Nineteen – Microphones in Amateur / Ham Radio (06 September 2015)

In this episode, Martin M1MRB / W9ICQ is joined by Ed Durrant DD5LP and Matthew Nassau M0NJX to discuss the latest Amateur / Ham Radio news. Colin M6BOY rounds up the news in brief, and this episodes feature is a review of a Microphones in ham radio

 

  • Secondary School Students Decode ISS Images
  • South African 40 MHz (8m) ham radio contact
  • FreeDV digital HF Voice Mode QSO Party
  • Senator Thanks Radio Amateurs
  • FCC Considering Proposal to End Modification of IT devices
  • Expected September Release of 5 MHz in Netherlands
  • Outcome for 5 MHz at WRC-15 Remains in Limbo
  • Improving Amateur / Ham Radio Club Websites

Colin Butler, M6BOY, is the host of the ICQ Podcast, a weekly radio show about Amateur Radio. Contact him at [email protected].

Amateur Radio Weekly – Issue 76

Pi-Go 12v power adapter for Raspberry Pi
The Pi-Go connects to the GPIO header and supplies a solid 5V at up to 3A for the Pi and its connected peripherals.
Kickstarter

$50SAT falls silent
The $50SAT amateur radio spacecraft has ceased transmitting after nearly 20 months in space.
AMSAT UK

Labor Day weekend: a great time for pirate radio action
Monday, September 7, is Labor Day throughout most of North America; shortwave pirates love to operate on long holiday weekends.
The SWLing Post

New versions K1JT weak signal digital modes
Think of this mode as FSK441 slowed down to 315 baud; the bandwidth is therefore narrow enough to make the mode legal in the “CW and data” portion of the 10 meter band.
amateurradio.com

HI HI: LOL of the 19th century
LOL in the age of the telegraph.
The Conversation

Sound of a sinking ship
Listen to the Morse code interchange between a sinking cruise ship and fellow ships.
hamradio.me

Open letter to Ham Radio manufacturers
Once upon a time, companies like yours developed equipment for hams entering the hobby as Novice licensees.
KC4LMD

Liquid metal changes shape to tune antenna
Liquid at room temperature, these alloys have the useful property of oxidizing on contact with air and forming a skin.
Hack A Day

Solar storm of 1859
Telegraph systems all over Europe and North America failed, in some cases giving telegraph operators electric shocks. Telegraph pylons threw sparks. Some telegraph operators could continue to send and receive messages despite having disconnected their power supplies.
Wikipedia

Video

Video of ICOM IC-7300 in action
IZØKBA

Digital voice and SSB comparison
You can really notice the reduced audio bandwidth and ever present noise of SSB compared to FreeDV. This is just the start – we are gradually improving the low SNR robustness and speech quality of FreeDV.
Rowetel

and finally…

RTTY decoder for Commodore 64
Decodes RTTY audio to readable text on the screen of your Commodore 64.
ebay


Amateur Radio Weekly is curated by Cale Mooth K4HCK. Sign up free to receive ham radio's most relevant news, projects, technology and events by e-mail each week at http://www.hamweekly.com.

The Wouxun KG-UV8D arrival.

You can wait in for some parcels for days, your promised they will be there but they never quite arrive when you expect. I predicted the Wouxun would arrive from Martin Lynch & Sons on Wednesday, I told the XYL to be around as I would be out working, she had just got back in time from the hairdresser. Arrival, there it was 11:10am delivered by UPS.





There is a lot of technical info out on there about this radio, the best, if you want a fair and unbiased review, get down to Hans PD0AC who has tested many Chinese radios with the proper test gear to a professional standard.

What do I have to say about it so far:

Like all new toys one is always eager to have a play. The radio came complete with external charger, wrist strap, belt clip, dual band antenna etc. A quick read of the well detailed manual might put your head in a spin, plenty of stuff to note. But like most of these Chinese radios once you understand the menu system it is easy to get to grips with. I slided the 2600mAh battery on the back of the main chassis case, it snapped and locked into place with a firm click. This made the radio feel quite weighty and rugged, I only have small hands and they only just made it around the body while holding it firm. 






Switching on, we were in business, a clear bright display made a change from the simple plain two line LCD HT's I have.







A quick test to check the internal firmware version, is achieved by holding down the 3 key while turning on the radio. Mine showed Version V1.05, which I understand is the latest which is shipped with the radio during production. *Note there is no user way of upgrading the firmware from an external PC..

  
2m and 70cm are always very quiet around here, but I was lucky my friend Gary M0TTO was just signing with someone on the 2m band over at Lichfield QTH. I pushed the PTT and gave him a shout, he came straight back to me, he reported the audio sounded really nice and crisp! I said what was the signal strength like? He said end stop! But of course it would be, he only lives about 6 streets away, I turned the power down to Low, still end stop. The  received audio sounded good, and plenty of volume still left in the wick should I have required a bit more. In the middle of the QSO it suddenly stopped TX, I was still pressing the PTT, I released the PTT and then pressed it again, it started Transmitting again, but shortly after the same thing happened. I was a bit curious at first, but I remember these radios have a Time Out Timer "TOT" Menu 06 this was only set at 60 secs, I increased the time out period and it stopped the annoyance.

Conclusion: I have always rated Wouxun as being the better of the quality end of production from China, I feel this radio brings them into a new era and still keeps them at the top! Certainly they have had problems in production like any other, but I am sure the Japanese big three feel the threat. So far I am pleased with what I have bought at the price of £69 inc UK delivery makes it an excellent buy. I still have to program it up for repeaters etc with the free software. Which can be downloaded from Wouxun or you can use the free Chirp multi radio programming software, which also supports this radio in a basic format at the moment.


Steve, G1KQH, is a regular contributor to AmateurRadio.com and writes from England. Contact him at [email protected].

The Wouxun KG-UV8D arrival.

You can wait in for some parcels for days, your promised they will be there but they never quiet arrive when you expect. I predicted the Wouxun would arrive from Martin Lynch & Sons on Wednesday, I told the XYL to be around as I would be out working, she had just got back in time from the hairdresser. Arrival, there it was 11:10am delivered by UPS.





There is a lot of technical info out on there about this radio, the best, if you want a fair and unbiased review, get down to Hans PD0AC who has tested many Chinese radios with the proper test gear to a professional standard.

What do I have to say about it so far:

Like all new toys one is  always eager to have a play, The radio came complete with external charger, wrist strap, belt clip, dual band antenna etc. A quick read of the well detailed manual might put your head in a spin, plenty of stuff to note. But like most of these Chinese radios once you understand the menu system it is easy to get to grips with. I slided the 2600mAh battery on the back of the main chassis case, it snapped and locked into place with a firm click. This made the radio feel quite weighty and rugged, I only have small hands and they only just made it around the body while holding it firm. 

Switching on, we were in business, a clear bright display made a change from the simple plain two line LCD HT's I have.






A quick test to check the internal firmware version, is achieved by holding down the 3 key while turning on the radio. Mine showed Version V1.05, which I understand is the latest which is shipped with the radio during production. * Note there is no user way of upgrading the firmware from an external PC..

  
2m and 70cm are always very quiet around here, but I was lucky my friend Gary M0TTO was just signing with someone on the 2m band over at Lichfield QTH. I pushed the PTT and gave him a shout,  he came straight back to me, he reported the audio sounded really nice and crisp! I said what was the signal strength like? He said end stop! But of course it would be, he only lives about 6 streets away, I turned the power down to Low, still end stop..The  received audio sounded good, and plenty of volume still left in the wick should I  have required a bit more. In the middle of the QSO it suddenly stopped TX, I was still pressing the PTT, I released the PTT and then pressed it again, it started Transmitting again, but shortly after the same thing happened. I was a bit curious at first, but I remember these radios have a Time Out Timer "TOT" Menu 06 this was only set at 60 secs, I increased the time out period and it stopped the annoyance.

Conclusion: I have always rated Wouxun as being the better of the quality end of production from China, I feel this radio brings them into a new era and still keeps them at the top! Certainly they have had problems in production like any other, but I am sure the Japanese big three feel the threat. So far I am pleased with what I have bought at the price of £69 inc UK delivery makes it an excellent buy. I still have to program it up for repeaters etc with the free software. Which can be downloaded from Wouxun or you can use the free Chirp multi radio programming software, which also supports this radio in a basic format at the moment.


Steve, G1KQH, is a regular contributor to AmateurRadio.com and writes from England. Contact him at [email protected].

LF/MF Moving Closer For U.S. Amateurs


With all commentary periods for the FCC's 'Notice of Proposed Rulemaking' (Docket 15-99) now closed, it appears that one of the last comments to be filed may contain the most powerful arguments in favor of swift implementation.

In its extremely detailed 42-paged submission, the ARRL states, in no uncertain terms, the reasons why access to both the 2200m LF band and the 630m MF band should not be held back and that service rules should be 'finalized'. Indeed the powerful arguments stated in favor of implementation should go a long way in making this happen sooner rather than later.

The FCC's position is that there is little to no evidence to indicate that amateur radio operation on either band would be incompatible with power company PLC systems, going as far as stating that at distances of 1km or more from PLC lines, "there is no chance of interference". Further supporting their claim, the thousands of hours of experimental operation were offered as powerful proof and that the ARRL was “unaware of any reports of interference to PLC systems arising from that operation conducted pursuant to numerous Part 5 experimental licenses…in the large band utilized by PLCs.

In addition, the ARRL had harsh words regarding the FCC's attempt to legitimize the growing number of fish-net beacons in the 160m band, and pulled no punches regarding their position in this matter.

"There is no indication that these buoys are compatible with other uses in the band, no track record of interference avoidance or resolution, and certainly no indication that the current operators can be relied on for compliance with the Commission’s rules."

"The Commission is urged to avoid enacting rules that it has no effective ability or intention to enforce. That fishing vessels have, with impunity, illegally deployed radio buoys in this band on a widespread basis (whether or not due to misrepresentations of the importers and retailers of these devices or due to a disregard of the Commission’s rules generally) without even nominal enforcement actions by the Commission, provides no basis for assuming that there will be compliance with any deployment limitations (including geographic deployment restrictions) on these buoys going forward. Nor is there any basis for the assumption that there will be any enforcement action taken with respect to continued illegal operation of the buoys if and when interference is caused. Spectrum planning by the Commission in this context has to be based on ex ante determinations of compatibility rather than mere assumptions, especially where the record indicates such a low level of historical compliance."

A summary of the comments can be read here in the ARRL News while all comments filed for the NPRM be found here temporarily, while the FCC site is down for maintenance.

Steve McDonald, VE7SL, is a regular contributor to AmateurRadio.com and writes from British Columbia, Canada. Contact him at [email protected].

Amateur Radio Newsline Report 1975 September 4, 2015

  • ONE FOR THE AGES
  • THE CYCLE OF LIFE
  • THE PRIDE OF DENMARK
  • THEY'VE GOT YL POWER
  • RADIO AMATEUR CRIES "UNCLE"
  • HELP FOR A HIKER
  • FROM RAGCHEW TO RICHES
  • DARE TO GO DIGITAL
  • MORE DIGITAL DOINGS
  • KEEPING IT SAFE
  • THE STUDENT BECOMES THE TEACHER
  • TRANSITION TO RADIO
  • ROW, ROW, ROW YOUR BOAT
  • WHEN STUDENTS AIM HIGH
  • THE WORLD OF DX
  • PUTTING A LID ON IT

SCRIPT

AUDIO




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