Amateur Radio Weekly – Issue 64

Newsline Co-Founder, Editor Bill Pasternak, WA6ITF, SK
A well-known voice in the Amateur Radio news media has gone silent.
ARRL

Icom IC-7851 HF/50MHz Transceiver
With the design of the IC-7851, Icom’s engineers focused on a new Local Oscillator (LO) that drastically reduces the phase noise. As a result of this design, the purity of the LO achieves a Reciprocal Mixing Dynamic Range (RMDR) of 110dB.
Icom

ARRL June VHF Contest this weekend
For amateurs in the US and Canada to work as many stations in as many different 2 degrees x 1 degree Maidenhead grid squares as possible above 50 MHz.
ARRL

How to work a VHF contest
This is a brief introduction to operating during a VHF contest.
KØNR

[Video] June VHF Contest in action
QRP portable on top of Slide Mountain in the Catskills of New York.
K2FR

Monitoring FBI survielence aircraft with ADS-B
From reports on the internet John found out that FBI aircraft squawked with 4414 or 4415 codes, and used call signs like JENNA or JENA.
RTL-SDR.com

Summertime CBer
Strong Es on 11 meters usually heralds the possibility of 6m also opening via the same mode.
VE7SL

TV signals used to track aircraft as alternative to radar
Using special receivers, researchers said they were able to track up to 30 planes simultaneously flying at altitudes of up to 10,000ft (3km).
BBC

Dayton Hamvention – R.I.P.
The “laws of the market place” are taking care of the “Dayton as a hell-hole” problem.
With Varying Frequency

Semaphore + Morse Code + SSB + Twitter = Art
On Saturday, June 20 artist Philippe Druez ON1PHD will be performing at the Academy of Fine Arts, Ghent, Belgium with the iSemaphore installation using Chappe semaphore, Morse code and Twitter.
Southgate

Video

Tracking & receiving the LightSail cube satellite
Showing how to track the LightSail CubeSat on your own PC with free software.
YouTube

Video tour of a CubeSat satellite
AMSAT Fox-1C Engineering Model 6/6/2015
YouTube


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.

William M. Pasternak WA6ITF (SK) 1942-2015

 

 

 



Summertime CBer


As much as I hate to admit it, for a few short weeks every summer, I become ... get ready for it now ... a CBer! Now I'm not talking about what might typically come to mind when thinking about CBers ... for me it's more of a love-hate relationship. You see, the 27MHz CB band, and 27.385MHz in particular, happens to make one of the best indicators of Sporadic-e openings on the face of the planet. Unlike the vast empty wasteland that 10m becomes during the summer, the 11 meter band is jam-packed full, with thousands of operators ... and some days it seems as if they are all on the 27.385 MHz (LSB) calling frequency.

With my receiver quietly running in the shack, the frequency can suddenly jump to life, with hundreds of stations calling each other in a matter of seconds. Sometimes it's like a switch has suddenly been thrown to 'ON'. This is not too hard to understand as the present suspected cause of Es is sudden high speed wind-shear within the E-layer. Have a quick listen to what the calling frequency can suddenly sound like:


Now the beautiful thing is that strong Es on 11 meters usually heralds the possibility of 6m also opening via the same mode ... usually 30 minutes or so later if it's going to happen. Often a CQ on a seemingly 'dead' 6m band in the direction of the 11m Es, will produce a response from an equally surprised operator at the other end.

I don't think I've ever heard Es on the 6m calling frequency without hearing Es on 11 meters beforehand. It's been my experience that the band always opens from low to high, in terms of frequency, so it just makes sense to listen lower (11m) to get a heads-up for what is likely soon to follow on the magic band. As well, knowing that there is 'zero' Es on 11m, can let you rest assured that nothing will be happening on 6m via Es ... at least for the time being.

If you haven't already tried it and have a second receiver that can be put to use as an 'Es-monitor', you might be pleasantly rewarded. Even though knowing that the band will soon open might rub a bit of the magic away, I think it's still well worth it!

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

WA6ITF – Bill Pasternak – SK

It was announced last night / early this morning on Facebook that Bill Pasternak WA6ITF has become a Silent Key, after a long illness.


Bill was the founder and producer of Amateur Radio Newsline and founder and administrator of the Amateur Radio Newsline Young Ham of the Year Award (co-sponsored by CQ Magazine). Bill was the author of many columns for many Amateur Radio publications over the years.

Bill was an outspoken advocate for all thing Amateur Radio. His achievements in Amateur Radio and in the promotion of it are too numerous to mention. I met him a long time ago (on-line) back in the good ol' days of Prodigy. Bill was always friendly, outgoing and willing to help anyone in any way he could. He will be sorely missed, and he has left us with a very large pair of shoes to fill.

My condolences to his wife Sharon KD6EPW and the rest of his family.

73, OM.

Larry W2LJ

Larry Makoski, W2LJ, is a regular contributor to AmateurRadio.com and writes from New Jersey, USA. Contact him at [email protected].

We Call It “Tech Field Day”

For Field Day this year, the Tri-Lakes Monument Radio Association (WØTLM) is planning a one day event that combines our Tech Day training activities with normal Field Day radio operating. This Tech Field Day will have a strong emphasis on radio education and training, including an opportunity to make contacts on the HF bands under the supervision of an experienced radio ham.

click to expand

click to expand

Sat June 27th, 2015 (8:00 AM to 5 PM)
Location: Black Forest Fire Station 1
11445 Teachout Road, Colorado Springs

Come to our one-day education and radio operating event and learn from informative presentations of amateur radio topics. Operate a high frequency (HF) radio station with the helpful guidance of an experienced radio ham. Learn about emergency communications and public service. Most of all, have a bunch of fun messing around with ham radio stuff!

TimeActivityPresenter
8:00Setup starts
8:30FM Simplex and RepeatersBob Witte, KØNR
9:30Operating SSB on the HF BandsStu Tuner, WØSTU
10:30Construction of Dipole AntennasLarry Kral, NØAMP
11:30Summits On The Air (SOTA)Steve Galchutt, WGØAT
12:00Start Field Day Operating
13:30Copper pipe antennasAl Andzik, WBØTGE
14:30Emergency Power for Ham RadioMike Hoskins, WØMJH
15:30Ask an Elmer PanelBob Witte KØNR and crew
17:00End of operations – tear down

For more information, visit the W0TLM web site.
73, Bob K0NR

The post We Call It “Tech Field Day” appeared first on The KØNR Radio Site.


Bob Witte, KØNR, is a regular contributor to AmateurRadio.com and writes from Colorado, USA. Contact him at [email protected].

Mizuho QRP SSB rigs

I don’t think this company still exists.

At one time you could buy Mizuho single band SSB handhelds for many bands up to 2m including many HF bands.  I owned the 2m 200mW pep version (MX2) and managed to work some decent SSB DX with mine mostly with a 1/2wave whip on the rig. The main issue was the poor battery life, so I tended to use an external 9.6V battery.

My rig was used in the main with a homebrew 2m-10m transverter and I worked all over the world on 10m with just the tiny Mizuho rig on the desk.

If I remember right I covered the CW and main SSB parts of 10m by having a couple of crystals in the transverter. Somewhere I still have the transverter, although it has not been used for years.

See https://sites.google.com/site/g3xbmqrp3/vuhf/mx2 .


Roger Lapthorn, G3XBM, is a regular contributor to AmateurRadio.com and writes from Cambridge, England.

WHAT an SWR of 99:9!!

The other evening I had an opportunity to get on the air it has just been to long and I was very excited about spinning the dial around the HF band! I ran the coax out to my MFJ 1788 on the balcony and fired up the K3. I jumped on 20m were not to much was happening but on 30m there was some Dutch DX that was calling CQ so I thought I would give them a go. Prior to calling my SWR on the loop antenna was tuned to 1.2:1 BUT when I started to call the Dutch station my SWR readout on the K3 magically became 99.9:1!!! It was like the coax had been removed from the antenna and was sitting on the ground. It was late so I wanted to look into this at a later time, this evening was the later time so I hooked the antenna up and gave 20m a go and the SWR once again on the K3 was showing 99.9:1. It was time to trouble shoot, was it the coax, MFJ 1788 antenna, the K3 or my LDG antenna switch? The first thing I wanted to do was to remove the antenna as the problem.
Without LDG antenna switch
I removed the coax from the antenna and in it's place put a 50 ohm dummy load. In a way I was relieved to see the 99.9:1 SWR thus removing the MFJ 1788 from the problem. Next I bypassed the LDG antenna switch and low and behold the SWR now was 1.1:1 and me saying thank god it was not my K3! So it would seem the LDG  antenna switch is the problem so I took the switch cover off and looked around. I cleaned the SO-239 connectors, check the internal connections and all seemed to be great. The only problem spot to me could be the switching relays with internal contact troubles? After exercising the relays the trouble in the LDG antenna switch seemed to be ok. If the trouble comes back this is a 4 position switch and I only use 2 positions I could swap out relays and look at ordering all new relays. At this point all seems to be working well but stay tuned to see if relay swapping and ordering is in the near future.
Relay in the LDG antenna switch

Mike Weir, VE9KK, is a regular contributor to AmateurRadio.com and writes from New Brunswick, Canada. Contact him at [email protected].

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  • Matt W1MST, Managing Editor