A SolderSmoke Holiday Charity Appeal -- Help Elisa help little Gonzalo!

We are going "off topic" for a moment, for a good cause.  Listeners to the podcast will have heard about my wife Elisa's strong connections to her home country, the Dominican Republic.  The new year finds Elisa trying to help a Dominican cousin who has a very sick little boy.  Details below.  All contributions large or small from the SolderSmoke community would be gratefully received.  Just click on the link to make a contribution.  And please consider forwarding this appeal to friends or relatives who might also be willing to help.

https://www.gofundme.com/porgonzalo

My name is Elisa Meara, and I am raising money for my dear cousin Eliana and  her 18 month old baby boy Gonzalo.

The week before Christmas Eliana and her husband Pedro were happily preparing to celebrate the festivities with their only child Gonzalo. This was Gonzalo's second Christmas and the first one he would be aware of.   Gonzalo wasn't feeling well and his pediatrician recommended that he be admitted to the hospital for a few days.  "Just another childhood virus" I am sure Eliana and Pedro thought.

But the morning of the day before Christmas they learned Gonzalo was very ill.  The diagnosis was leukemia.   While the world around them celebrated, they were living every parent's worst nightmare.  Baby Gonzalo needed emergency medical attention to save his life.

On Christmas Eve, trying to give their son the best chance possible, they left their home and families behind in The Dominican Republic to take him to Jackson Memorial Hospital in Miami for treatment. The morning of Christmas Day he received his first round of chemotherapy. The treatments will continue for the next six to eight months.

Needless to say,  this young and hard-working couple is devastated.  They are trying to do everything they can to help their baby boy.

While they have health insurance, the costs and expenses -especially those associated with living in a foreign city- are growing very quickly. We are hoping to help ease this tremendous heart-ache and suffering with prayers and financial support.

No contribution is too small and every little bit will help.  You can contribute here:

https://www.gofundme.com/porgonzalo

 And please consider forwarding this appeal to friends or relatives who might also be willing to help.

Happy New Year! Straight Key Night on 160 Meters

A while back, when I first mentioned getting on 160 meters by year's end, Pete suggested I shoot for Straight Key Night.  As many of you know, suggestions from Pete somehow seem to have a way of becoming ham radio MORAL IMPERATIVES.  He seems to be a prophet of sorts, a prophet of THE RADIO GODS.  So following the guidance of the oracle of Newbury Park, I found myself in front of my DX-100/HQ-100 on New Year's Eve, on 160 meter CW for the first time in my 42 years as a radio amateur.

It was great.  A couple hours prior to the official 0000Z start of Straight Key Night I had my first 160CW QSO.   It was with John WA2MUA up in Summit, NY.  John's QRZ page includes this: “Years ago--as a teenager-- in an attempt to get enough wire for 160 I wrapped a quarter wave of wire around a pvc pipe, strapped it to a wooden gutter----burned a large notch in the gutter and could have burned my parents' house down!”   That, my friends, is 160 meter KNACK!  

Then, just minutes after SKN kick-off, I worked John W3LR in Eastern Pennsylvania.  It was also John's first SKN contact.

Next up was Eric NO3M.  Wow, this one was amazing.  Eric was running the homebrew rig pictured above.  On his blog Eric describes the rig:   "The transmitter is running a 89 Clapp oscillator, 802 buffer, 811 final...  Output power is approximately 75W. "

Eric's antenna is even more amazing:  it is a 160 meter four square featuring FOUR aluminum tubing vertical elements with capacity hats and --GET THIS -- a radial field consisting of 22,000 feet of bare copper wire. TWENTY TWO THOUSAND FEET OF BARE COPPER WIRE.  Wow, you just don't run into stations like that on 20 meter sideband.   Eric's blog: http://no3m.net/  But Eric -- a Vibroplex Champion?  On SKN? 

I then worked KC2LSD and K1EEE.  FB!

My last contact of the evening (and the year) was K1WHS, Dave in Maine.  On his QRZ.com page, Dave reports:

“On 160 meters, I have a small setup right at my house. I use a K3 with a homebrew 3-1000 amplifier that runs at 1300 watts. The antenna is an 80 ft Rohn 25 in my backyard with some top loading and shunt feeding.  I laid out a bunch of radials in an effort to get the efficiency up. At last count I had about 107 1/4 wave radials strung out. 160 is the only band where my feedline is not big fat hardline. I use a run of RG-213.  For receive, I have several beverages running in the woods. I use this setup often in the winter as many times, the hilltop shack is not accessible due to heavy snow.   I have nothing up for any of the bands between 160 and 10 meters”.

 Thanks to all of my SKN contacts!  And Happy New Year to all  SolderSmoke readers and listeners! 

N8NM's Straight Key Night Rig

Hi Bill,

 

Just wanted to drop you a line to let you know that I’ve recently discovered your SolderSmoke podcasts and am enjoying the heck out of them!  In fact, you and Pete have inspired me to break away from the thermatrons and delve into the wonderful world of the TIA transceiver, and after several weeks of sniffing rosin, my new rig is now receiving signals without the aid of any external life support!  It’s still a bit haywired, but I’m looking forward to pairing it with my little 6AG76L6 transmitter for a few SKN QSOs tomorrow.

 

I haven’t taken any pics of the new rig yet, mainly because, at this point, there’s not much to see, but here’s it’s little octal-based friend with its AD9850/6AG7 hybrid VFO (works a bit better than the VF-1 that it replaced J):

  

Anyway, thanks for putting forth the time and effort to do the podcast!  All the best to you, Pete and your families in the new year.

 

73,

 

Steve Murphy, N8NM

The K7DYY Solid State Class D Legal Limit AM Transmitter

I was on 160 Meter AM this morning, talking to Chet WB2AHK in New York City.  Chet had a very strong signal here.  He was running a rig that I hadn't heard about before, a K7DYY transmitter.   See above. Very interesting.   Here are the details:

http://k7dyy.com/index.html

Chet's receiver was at the opposite end of the technology spectrum -- like me he was listening on a Hammarlund HQ-100.  He told me that he had replaced the old mechanical clock with a digital "glowing numerals" device.  This got me thinking that that space on the front panel might be suitable for a small frequency counter...

Alan Wolke W2AEW Interviewed on QSO Today! And it is GREAT!

A very cool interview indeed.  But how could it be otherwise?  With Eric on one end of the Skype connection and Alan on the other, coolness was inevitable.

In this interview we are reminded of the FACT that Alan has a major case of THE KNACK.  Proof is found in the way he obtained the wire for his first SW antenna:  he unwound the magnet wire in the yoke transformer of a discarded TV set.  THAT, my friends,  is the stuff that KNACK is made of!  

Check it out:

http://www.qsotoday.com/podcasts/w2aew

I share Alan's affection for the TEC 465 'scope, but I twitched a bit when he said it is "easy to work on."  It scared the hell out of me!  It features both plug-in transistors and lethally high voltage -- so high that Alan had to lend me a special high voltage probe just to do the measurements.   

Alan's mention of Project Diana and the history of moonbounce reminded me of Ross Bateman, W4AO, the wizard who, in 1952 bounced the first amateur radio signals off the moon.  He did it from the town I live in now, Falls Church, Virginia. Alan provided me with the address from which the signals were launched. 

Thanks Alan! Thanks Eric!  

First Contact on 160 Meters

Hooray!  After 42 years on the ham bands I have finally made a contact on 160 meters.  And it was on AM, using John Zaruba's DX-100.  My antenna is the 185 foot wire that I mentioned in yesterday's post.  I built an L network using a roller inductor and a bread-slicer cap -- the network is at the base of the antenna.  Before dawn this morning I threw my call into a round-table on 1885 kc.  Pete WA1SOV up in Connecticut heard me and we had a short contact. Hooray! 

I hope this puts some pressure on Steve Silverman and Pete Juliano -- they have sworn A SOLEMN OATH to get on top band.  I'm especially worried about Pete's adherence to this pledge -- he seems to be going a bit wobbly on us, playing with Raspberry Pi's and things like that.  C'mon guys!  Top Band awaits!

My antenna needs improvement.  More radials might help. 

"Receiver Here is My SWR meter OM..."

Santa managed to include in his delivery some of the materials that I needed to build my 160 meter inverted L antenna.   You see, Steve Silverman, Pete Juliano and I have collectively more than 150 years in ham radio, but none of us have ever operated on Top Band.  The three of us have taken A SOLEMN OATH to correct this horrendous deficiency.   I am in the vanguard, partly due to a weather pattern that is perfect for antenna building. 

Armed with a new elastic band for my Wrist-Rocket sling shot and some perfectly shaped lead sinkers,  yesterday -- with the obvious cooperation of The Radio Gods -- I managed to get two ropes over some 70 foot trees.  Soon -- with minimal gnashing of teeth -- I had 185 feet of wire in the air. 

This morning I was messing around with L networks at the base of the antenna.  I took a coffee break, leaving the 185 foot wire and the ground system connected to the coax.   I had the transmitter off, so I was surprised to see the SWR meter jumping around a bit, up significantly from zero.   What could that be?  It wasn't coming from my station, so it had to be coming from some other transmitter. And the slight bit of jumping that I saw on the SWR meter had the familiar pattern of the human voice.  Some radio sleuthing ensued.

I flipped the station antenna switch to the  "bench" position, and connected my scope to the coax.  Wow!  I immediately saw a big strong AM signal with modulation, at about  5 or 6 volts peak to peak.  The Rigol 'scope gave the frequency:  1220 kHz.  

I tuned the HQ-100 to that frequency.  As I listened to Gospel broadcast, I could follow the voice peaks on the 'scope. 

Some Googling ID's the station:  WFAX 1220 AM.   5 kilowatts in the daytime.  1.5 miles from my house.  The vertical portion of the inverted L is obviously picking up a LOT of energy from the WFAX tower.  And the horizontal portion of my antenna is broadside to the WFAX tower.

Of course this all made me think about throwing together a crystal radio, but then I realized I'd already listened to WFAX with simple diode -- the one in my SWR meter.  That little SWR meter was acting like a crystal radio with a visual output!     

Fessenden AM Broadcast, Christmas Eve 1906? Maybe not....

Garrison Keillor mentioned this in his "Writers Almanac" today. That sent me to Google where I found this: 

http://www.radioworld.com/article/fessenden-world39s-first-broadcaster/15157

But in any case, Merry Christmas to all!

Amazing Space-X Launch. Then watch the rocket COME BACK TO THE PAD

The Secret Life of Machines -- The Radio (Video)

Thanks to Rick N3FJZ for sending this to us.  In 25 minutes these fellows manage to capture and explain much of the "magic" of radio.  Great shots of Marconi, and of Hertz's first rig.  Amazing how they built their own spark transmitter and coherer receiver, launched a kite antenna and sent a signal across the harbor.  Great stuff.  Lots of history.   We've met Mr. Wells before -- he was "jailed for having the Knack!"

SolderSmoke Podcast #183 Pete's B'day, Simple-Ceivers, Binaural Bliss, 160 or Bust, GOOD BEHAVIOR, MAILBAG

Bill's Frankenstein R2 receives 7 MHz signal and generates I and Q outputs

SolderSmoke Podcast #183 is available. And it is GOOD!

http://soldersmoke.com/soldersmoke183.mp3

20 December 2015

-- Foxes in the Backyard
-- Pete completes another orbit
-- Simple-ceiver Success!
-- Frankenstein Receiver: IT IS ALIVE!  AND BINAURAL!!!
-- 160 Meter AM OR BUST!
-- Fun on 40 AM -- Lots of Multi Elmac AF-67s!  Who knew!
-- The Amateur's Code, and violations thereof.
-- Negative Frequencies? I don't think so.
-- Capacitor Offer from our Secret Benefactor: EXPANDED ELIGIBILITY
-- Projects for 2016: Pete goes Raspberry Pi, Bill goes DX-100
Mailbag:
-- Croation Creation
-- Salvadoran 2B
-- N3FJZ's Homebrew QSL
-- WA7HRG's LBS-ZIA-Simple-Ceiver Mashup Rig
-- KC0IZR turning VCRs into Mighty Mites in NOVA
-- AB1YK Starting with DC RX, going BITX
-- G8GNR puts Mighty Mite on AM!
-- G3ZPF Modulates THE SUN (Amazing)
-- VK3YE's Simple Superhet
-- Grayson in Turkey drools over KG7TR's Octalmania
-- N7REP reaches for the Zantac because of Arduinos and Surface Mount
       

Mama Mia! Mikele's Croation Simple-ceiver Video

You can just feel the homebrew enthusiasm in this video.  You can almost smell the solder smoke.

We love it when people do videos showing their new rigs spread out on the workbench with individual boards held together by bits of solder.  It is even better when, as in this video, the boards are atop hand-drawn schematic and parts-placement diagrams with much NOODLING in evidence. 

FB Mikele!  And I agree with you about the stations who call "CQ DX-only."  I used to hear that a lot when I was in Europe, and I hear it hear quite a bit too.   I always think it is a contradiction in terms. There were times when I was sitting there with a new rig, anxious to get a signal report from a strong station, and he wouldn't come back to me because of the Continent that I was sitting in! Pity.   His loss.  He might have been interested to hear about the contraption I was testing.  It could have been fun, but no, he preferred to work VK3 or Puerto Rico for the 1000th time. 

Indeed, three cheers for the legendary Pete Juliano!