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They named a candy after me!
24 April 2015 | by 
You may recall in my post about the Rookie Roundup that I had mentioned I used my EARCHI antenna, anchored to my 31' Jackite pole as a support. I had intended to shoot a support line over a convenient tree and was going to haul it up that way.
I started pressurizing my Joplin ARC pneumatic antenna launcher, but I couldn't build up any pressure. At first, I thought that perhaps my super cheapie WalMart bicycle pump had failed me. But listening carefully while stepping on the foot pump revealed a "whooshing" sound - so air was coming out. Next, I thought that perhaps the Schrader valve on the launcher was busted. However, I manually manipulated the pin in the tip with a screwdriver tip and it came back after being depressed - so that was OK.
It was about then that Marv K2VHW said to me, "Larry, is that a big crack on the side?"
A HUGE crack on the side of the air pressure chamber, on the side opposite the valve - practically going down the entire side.
DUH!
That's when I remembered that last October, when I made my last outdoor QRP venture for the season to Washington Rock State Park, the launcher had slipped out of my hand as I was opening my Jeep door for the return trip home. It had hit the concrete parking lot surface pretty hard, but I didn't think twice about it at the time. I didn't even give it a second look at the time. PVC is strong stuff after all, right?
I didn't notice the humongous Godzilla sized crack until Marv had pointed it out.
Call me Captain Oblivious.
I was going to try epoxying the crack. But air is like electrons - no such thing as a dumb electron - no such thing as a dumb air molecule. If either can find the shortest path, they will. I figured that once the pressure chamber was compromised, it was compromised for good. Continually pumping air into it would probably only make the crack grow bigger, even after a patch job. So last Sunday night, I ordered another. This is not something I would have normally done - my Ham Radio budget is EXTREMELY tight this year. But that launcher has become necessary equipment. I'm not as talented a water bottle tosser as Jim W1PID, my arm is nothing that would scare Tom Seaver (even on my best day) and my sling shot skills are so-so to say the least. And don't even put me anywhere near archery equipment. Between the various outdoor QRP events and Field Day, that launcher has become a must have. So even though $50 is a big deal for me, the decision to order a replacement was a no-brainer.
I was thinking that there's no way it would arrive in time, but it showed up through the USPS on Wednesday. Talk about fast service - thanks Joplin ARC ! And how do you like that - the USPS delivered it to the right house! A lot of you are thinking that's no big deal, but there's a Clinton Place, a Clinton Terrace and a Clinton Avenue in South Plainfield. Sometimes my mail goes to other places, it can be a toss of the dice.
I built it Wednesday evening, after coming home from work and after typing up and sending out the local radio club's minutes for last month. The launcher is so easy to build that I could do it in my sleep - and in fact, I was so tired Wednesday night that it almost did get built while I was asleep.
I set it aside for a 24 hour cure, and pumped it up last night for a leak test. No bubbles in the water - yay! After pumping it up with 5 lbs of pressure, I did another check at 10 lbs of air pressure. Still no bubbles - double yay! Then a final test at 20 lbs of air pressure, as I rarely have to go above that to successfully launch an antenna. Good again - triple yay!
So I have a launcher for tomorrow - QRPTTF, and for the rest of forever. I am really going to be sure I never play dropsy with it again. The spud gun has become too valuable a tool for me to be without.
72 de Larry W2LJ
QRP - When you care to send the very least!
Larry Makoski, W2LJ, is a regular contributor to AmateurRadio.com and writes from New Jersey, USA. Contact him at [email protected].
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World’s Best Microphone Hanger
I am often disappointed by the crummy microphone hanger clips supplied with mobile ham transceivers. Typically, they are cheap metal clips with sharp edges waiting to impale your hand, that look like this:
I recently came across these microphone clips that are awesome! Available from Amazon for $7.49. 
73, Bob K0NR
The post World’s Best Microphone Hanger 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].
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Quality control or lack of?
Amateur Radio has taken a back seat over the last few weeks with various family problems.
However yesterday, I had a bit of spare time and I was all revved up for testing a Baofeng with its battery eliminator. This is the part that takes the place of the HT battery pack and slides on the back of the radio instead of, providing regulated power from the car battery cigar lighter socket, in essence you make yourself a cheap and cheerful mobile rig.
I needed to just test it all out that it worked before fitting, and the MP-304 power supply which I had recently bought was still sitting on the dining room table in its box, handy for a few Volts so I thought?
Cased back up, I was then back to the point where I had started at a couple of hours earlier, testing the Baofeng:
Steve, G1KQH, is a regular contributor to AmateurRadio.com and writes from England. Contact him at [email protected].
However yesterday, I had a bit of spare time and I was all revved up for testing a Baofeng with its battery eliminator. This is the part that takes the place of the HT battery pack and slides on the back of the radio instead of, providing regulated power from the car battery cigar lighter socket, in essence you make yourself a cheap and cheerful mobile rig.
I needed to just test it all out that it worked before fitting, and the MP-304 power supply which I had recently bought was still sitting on the dining room table in its box, handy for a few Volts so I thought?
Switching on the MP-304, there was no deflection of the meter, (meter switch was in the correct Volts position)? Got the DMM out, and measured the output, plenty of Volts, but still no indication on Power supply analogue meter?
Should I return it? No chance with all the hassle of someone having to wait in for the courier to collect, it had got to be worth a look. Anyway I used to test power supplies by the hundreds, when I worked in the industry, so I did have a good chance maybe?
Quick investigation required! Took off the top of the case and I was inside, no going back now. Measured at the rear of the meter terminals with the DMM no volts, nothing on the rear of meter switch that changes between Amps or Volts either. This then leads us back to the plug that plugs into CN2 on the control PCB. Just as I was about to measure at this point, I could see the Blue wire (I have marked it with a small red arrow above) was raised, with its termination tag in the plug sticking out, I unplugged the whole skt from CN2, and the Blue terminal had not been pushed home in the plug in the factory, a smart push and it clicked in place. Plugged it back into the PCB socket and switched on, and the meter then sprung into life!
It does make me wonder if the Chinese really test this stuff in the factory? Time and time again I have come across problems with Chinese equipment like this, which should really be sorted in the factory before shipping, I don't believe QA exists? The problem here is, the dealer gets a bad name, and it really isn't his fault, he buys in a pallet load, one or two get put out for demonstration, and the rest are stored ready to be shipped out in the original sealed boxes they come in.
After fixing this, it did however give me the chance to have a good look inside what it was made of :
Build quality really wasn't too bad, a nice hefty transformer feeding a quality bridge rectifier, control board (which I have already mentioned), that sets up the limits and then drives the outputs, on a good quality heatink blown at by a fan, which is triggered by a stat when the temp gets to a certain level.
Cased back up, I was then back to the point where I had started at a couple of hours earlier, testing the Baofeng:
Steve, G1KQH, is a regular contributor to AmateurRadio.com and writes from England. Contact him at [email protected].
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A lot better today!
I saw another e-mail in my inbox this morning from Marv K2VHW with the subject "Another flare". I groaned loudly, inwardly, because no one near me would have understood. Then, just before heading out to the Jeep at lunch time, I checked http://www.bandconditions.com/index.htm
That had me shaking my head even more.
I'm glad I didn't give in to the temptation to chuck it all for today, because I had the best QRP lunch time that I've had in a while - numbers and predictions be damned!
I started out on 17 Meters which seemed to be in great condition. Low noise level and some loud signals. I worked EA6NB, Jaime in the Balearic Islands. From there I wandered around a bit and worked W4B a Special Event Station for Earth Day in Florida.
After that, I switched bands and called CQ near the 20 Meter QRP Watering Hole and was answered by Dick K5TF in Atlanta, GA. Dick had a gorgeous signal. He was pushing 5 Watts out of his K2 to a Hexbeam (secretly, I am lusting for one of these babies. Bob W3BBO and I always dream about getting one for our stations and my good friend and fellow DXer/QRPer Steve WX2S is in the process of installing one). Not only was Dick's signal excellent, but his fist was a dream to copy. The words were appearing in my brain as if I were reading a teleprompter. It was a very enjoyable, but short chat.
From there, I decided to spend the last bit of time that I could squeeze out of lunch break by calling CQ at the 15 Meter QRP Watering Hole on 21.060 MHz. I was greeted there by Alberto WP4L for another 2X QRP chat. Alberto was pushing 5 Watts out of his Yeasu FT-450 and sounded like he was just down the street. And I might add, another excellent fist that was bliss to copy.
If the flare that Marv e-mailed me about helped provide the kind of band conditions that I experienced today, then I hope we get them all the time! Loud signals, quiet background noise - what more could you want or ask for? The only bad thing was having to stop so that I could come back inside in order to finish the work day out.
72 de Larry W2LJ
QRP - When you care to senf the very least!
Larry Makoski, W2LJ, is a regular contributor to AmateurRadio.com and writes from New Jersey, USA. Contact him at [email protected].
That had me shaking my head even more.
I'm glad I didn't give in to the temptation to chuck it all for today, because I had the best QRP lunch time that I've had in a while - numbers and predictions be damned!
I started out on 17 Meters which seemed to be in great condition. Low noise level and some loud signals. I worked EA6NB, Jaime in the Balearic Islands. From there I wandered around a bit and worked W4B a Special Event Station for Earth Day in Florida.
After that, I switched bands and called CQ near the 20 Meter QRP Watering Hole and was answered by Dick K5TF in Atlanta, GA. Dick had a gorgeous signal. He was pushing 5 Watts out of his K2 to a Hexbeam (secretly, I am lusting for one of these babies. Bob W3BBO and I always dream about getting one for our stations and my good friend and fellow DXer/QRPer Steve WX2S is in the process of installing one). Not only was Dick's signal excellent, but his fist was a dream to copy. The words were appearing in my brain as if I were reading a teleprompter. It was a very enjoyable, but short chat.
From there, I decided to spend the last bit of time that I could squeeze out of lunch break by calling CQ at the 15 Meter QRP Watering Hole on 21.060 MHz. I was greeted there by Alberto WP4L for another 2X QRP chat. Alberto was pushing 5 Watts out of his Yeasu FT-450 and sounded like he was just down the street. And I might add, another excellent fist that was bliss to copy.
If the flare that Marv e-mailed me about helped provide the kind of band conditions that I experienced today, then I hope we get them all the time! Loud signals, quiet background noise - what more could you want or ask for? The only bad thing was having to stop so that I could come back inside in order to finish the work day out.
72 de Larry W2LJ
QRP - When you care to senf the very least!
Larry Makoski, W2LJ, is a regular contributor to AmateurRadio.com and writes from New Jersey, USA. Contact him at [email protected].
» Leave a Comment (0)
Hunting For NDB’s In CLE193
 |
| SN-408 courtesy: Alex Wiecek |
It's CLE time once again! For you low-frequency buffs, another challenge awaits. This months frequency range covers the high end, 400-419.9 kHz. Perhaps you can log little 13-watt SN (St. Catherines, Ontario) on 408kHz, last logged here in February 2014.
Conditions have been up and down so lets keep our fingers crossed for some good propagation.
From CLE coordinator Brian Keyte (G3SIA) comes the following reminder:
"Our 193rd co-ordinated listening event starts on Friday. After the Navtex
CLE last month, this is a gentle return for us to normal NDB listening.
Do join in even if you only have an hour or so to spare over the weekend.
Days: Friday 24 - Monday 27 April 2015
Times: Start and end at midday your LOCAL time
Range: 400 - 419.9 kHz
Just log all the NDBs you can identify with nominal (listed)
frequencies in the range - it includes 400 kHz, but not 420 kHz -
plus any UNIDs that you come across there.
Please send your CLE log to the List (no attachments and ideally in a
plain text email) with CLE193 at the start of its title. Show on each line:
# The Date (or Day No: 24 to 27)
# The Time in UTC (the day changes at 00:00 UTC).
# kHz - the nominal published frequency, if known.
# The Call Ident.
Please show those main items FIRST. Any other optional details such
as Location and Distance go LATER in the same line.
If you send any interim logs, please also send a 'Final' (complete) one.
And, of course, tell us your own location and brief details of the
equipment that you were using during the Event.
I will send the usual 'Any More Logs?' email soon after 17:00 UTC
on Tuesday so that you can check that your log has been found OK.
Do make sure that your log has arrived on the List by 08:00 UTC
on Wednesday 29 April at the very latest.
The combined results should be completed on that day.
You can find full details about current and past CLEs from the CLE page
http://www.ndblist.info/cle.htm including access to the CLE193 seeklists
for your part of the World prepared from the loggings on Rxx.
Good listening - enjoy the CLE.
Brian
----------------------------------------------------------
From: Brian Keyte G3SIA: <ndbcle'at'gmail.com>
Location: Surrey, SE England (CLE co-ordinator)
----------------------------------------------------------
(If you would like to listen remotely you could use any one remote
receiver such as http://websdr.ewi.utwente.nl:8901/ for your
loggings, stating its location and owner and with their permission
if required. A remote listener may NOT also use another receiver,
local or remote, to make further loggings for the same CLE)"
Do join in even if you only have an hour or so to spare over the weekend.
Days: Friday 24 - Monday 27 April 2015
Times: Start and end at midday your LOCAL time
Range: 400 - 419.9 kHz
Just log all the NDBs you can identify with nominal (listed)
frequencies in the range - it includes 400 kHz, but not 420 kHz -
plus any UNIDs that you come across there.
Please send your CLE log to the List (no attachments and ideally in a
plain text email) with CLE193 at the start of its title. Show on each line:
# The Date (or Day No: 24 to 27)
# The Time in UTC (the day changes at 00:00 UTC).
# kHz - the nominal published frequency, if known.
# The Call Ident.
Please show those main items FIRST. Any other optional details such
as Location and Distance go LATER in the same line.
If you send any interim logs, please also send a 'Final' (complete) one.
And, of course, tell us your own location and brief details of the
equipment that you were using during the Event.
I will send the usual 'Any More Logs?' email soon after 17:00 UTC
on Tuesday so that you can check that your log has been found OK.
Do make sure that your log has arrived on the List by 08:00 UTC
on Wednesday 29 April at the very latest.
The combined results should be completed on that day.
You can find full details about current and past CLEs from the CLE page
http://www.ndblist.info/cle.htm including access to the CLE193 seeklists
for your part of the World prepared from the loggings on Rxx.
Good listening - enjoy the CLE.
Brian
----------------------------------------------------------
From: Brian Keyte G3SIA: <ndbcle'at'gmail.com>
Location: Surrey, SE England (CLE co-ordinator)
----------------------------------------------------------
(If you would like to listen remotely you could use any one remote
receiver such as http://websdr.ewi.utwente.nl:8901/ for your
loggings, stating its location and owner and with their permission
if required. A remote listener may NOT also use another receiver,
local or remote, to make further loggings for the same CLE)"
__._,_.___
These listening events serve several purposes. They:
- determine, worldwide, which beacons are actually in service and on-the-air so the online database can be kept up-to-date
- determine, worldwide, which beacons are out-of-service or have gone silent since the last CLE covering this range
- will indicate the state of propagation conditions at the various participant locations
- will give you an indication of how well your LF/MF receiving system is working
- give participants a fun yet challenging activity to keep their listening skills honed
Final details can be found at the NDB List website, and worldwide results, for every participant, will be posted there a few days after the event. If you are a member of the ndblist Group, results will also be e-mailed and posted there.
The very active Yahoo ndblist Group is a great place to learn more about the 'Art of NDB DXing' or to meet other listeners in your region. There is a lot of good information available there and new members are always very welcome.
If you are contemplating getting started on 630m, listening for NDBs is an excellent way to test out your receive capabilities as there are several NDBs located near this part of the spectrum.
You need not be an ndblist member to participate in the CLEs and all reports, no matter how small, are of much value to the organizers. 'First-time' logs are always VERY welcome!
Reports may be sent to the ndblist or e-mailed to either myself or CLE co- ordinator, Brian Keyte (G3SIA), whose address appears above.
Please...do give the CLE a try....then let us know what NDB's can be heard from your location! Your report can then be added to the worldwide database to help keep it up-to-date.
Steve McDonald, VE7SL, is a regular contributor to AmateurRadio.com and writes from British Columbia, Canada. Contact him at [email protected].
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Optical testing – too easy?
Before dark, I tried TXing from one side of the house to the other reflecting my 481THz optical beacon off the windmill. Even by ear in 600 ohm phones the signal was very clear and very easy to find. This was only about 100m path length, but I wanted to check the gear still worked as it is a long time since I used it. Not sure what to try next as I still feel very wobbly on my feet and tire easily. At least I know my homebrew optical gear all works still.
Roger Lapthorn, G3XBM, is a regular contributor to AmateurRadio.com and writes from Cambridge, England.
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Ham College episode 4 Live Stream
Episode 4 of Ham College is this Thursday, April 23rd at 7PM CDT, 000 UTC at live.amateurlogic.tv
George Thomas, W5JDX, is co-host of AmateurLogic.TV, an original amateur radio video program hosted by George Thomas (W5JDX), Tommy Martin (N5ZNO), Peter Berrett (VK3PB), and Emile Diodene (KE5QKR). Contact him at [email protected].
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