[carpe] links for carpe meeting on soldering, and some amateur radio QRP
R P Herrold
herrold at owlriver.com
Wed Mar 28 16:13:21 EDT 2018
cq cq cq de wb8sky
Action item: curent Amateur radio licensees, please consider
becoming a VE:
http://kparc.org/VE.pdf
and
http://www.arrl.org/files/file/VEs/VE%20Manual%20Web%20FINAL%202014.pdf
a reference manual for VEs, but no question pool, nor answer
form
------------------------------------------
Gabriel Sheeley called and mentioned that Jim Prior had
volunteered me for the upcoming April 10 meeting, and that
soldering was the desired topic. I started typing
This write up kind of 'just grew' as I assembled links, and a
BOM for one to follow along with, or replicate the meeting
later (I anticipate we will do more than one to cover this
topic. I also include materials from a NASA program, which
seems completely unaware of the emergence of the 'Maker
movement' in recent years
I've been licensed for over 45 years in Amateur radio, and an
electronics hobbyist longer than that. I know there are
others in the group also licensed. If there is interest, we
can do a 'volunteer examiner' session and do the exams. Self
study of the question pools is the way to know what will be
asked:
This site [ http://ncvec.org/ ] looks as though it needs a
good paid editor to clean up nameing, ,and site organization,
but as it is a volunteer effort, you get what you pay for
Technician
http://ncvec.org/downloads/2018-2022%20Tech%20Pool%202nd%20Errata%2002122018.pdf
http://ncvec.org/downloads/2018-2022%20Tech%20Graphics.pdf
General
http://www.ncvec.org/downloads/FINAL%20Revised%202015-2019%20General%20Class%20Question%20Pool%202-11-2015.pdf
http://ncvec.org/page.php?id=350 (this looks stale)
http://www.ncvec.org/downloads/Final%20Element%203%20Pool.pdf
errrata
http://www.ncvec.org/downloads/Revised%20G7-1.pdf
Amateur Extra
http://www.ncvec.org/downloads/2016%20ExtraClassPool2nd%20Errata.doc
http://www.ncvec.org/downloads/2016%20Extra%20Class%20Pool%20Diagrams.pdf
from: http://www.w5yi-vec.org/ve_manual.php
Since the Federal Communications Commission released rules in
2007 that removed CW - Morse Code as a testing requirement
from ALL Amateur license examinations in the United States,
there have been few if any rule changes that impacted the VEC
Program.
Currently there are three license classes that require only
written examinations:
Element 2: 35 question written test for a Technician
License. Pool effective 7/01/14 to 6/30/18 .....passing score
for written exam is 26 questions answered correctly
Element 3: 35-question written test for a General
license.Pool effective 7/01/15 to 6/30/19....passing score for
written exam is 26 questions answered correctly
Element 4: 50-question written test for an Amateur Extra
license. Pool effective 7/01/16 to 6/30/20....passing score
for written exam is 37 questions answered correctly
stuff for the April and a later CARPE meeting
==============================================
Parts and tools
I assume you will find a soldering iron -- a 35 watt one is
fine, and MicroCenter ahs all this in stock -- and solder,
flux, and a wipeing sponge for the session
Here are some parts, and some PDF links to let us explore the
topics of soldering to small PCB's identifying components, and
more. We will consider the Schematics, Instructions, PCB
layout, and BOM -- Bill of materials,
Desired sub-topics:
joining single strand wire, one to another
tinning multi strand wire, and joining
PCB soldering
One always hopes to actually DO SOMETHING INTERESTING, and so
the mention of the 'QRP Pixie' -- QRP is amateur radio
operator, and shoprt wave listener shorthand for 'very low
power'
Review:
http://qrznow.com/qrp-pixie-chinese-7-00-cw-transceiver-kit-40m/
Manual and schematic:
http://www.oz1bii.dk/documents/Pixie-Transceiver-OZ.pdf
parts:
https://www.banggood.com/5Pcs-DIY-QRP-Pixie-CW-Receiver-Transmitter-Kit-7_023MHz-Shortwave-Radio-p-1146534.html
'Pixie' starter 'CW' transmitter and receiver -- Crystal
controlled, on the common frequency [40 meter band, at 7.032
MHz] used for such 'weak signal' work by convention in the
amateur radio community, worldwide. continuous wave (for FCC
type A1 signalling -- Morse code), in a low power (QRP) form,
not requiring a formal license as it is below 100 mW output
runs off 9 to 12 VDC (no tight tolerance like digital
components sometimes have)
5 kits for under $20
($12 to $15 on Amazon)
detailed writeup, Assembly hints, BOM, PCB, and schematic
http://www.oz1bii.dk/documents/Pixie-Transceiver-OZ.pdf
Assembly and fire-up narrative
http://www.vk3bq.com/2015/06/28/pixie-qrp-7mhz-cw-kit/
50 9V connectors without barrel jack for $5
https://www.banggood.com/50Pcs-9V-Battery-Connector-Snap-Clip-T-Style-Cable-Wire-Lead-Holder-Adapter-145mm-p-1122480.html
5 !! 9V connectors without barrel jack for $9 !!
https://www.banggood.com/5PCS-T-type-9V-DC-Battery-Power-Cable-Cylinder-Jack-Connector-p-1047198.html
https://www.banggood.com/Frog-Sounds-HAM-Radio-QRP-Kit-Telegraph-CW-Transceiver-Receiver-Radio-Station-p-980512.html?rmmds=myorder&cur_warehouse=CN
The 'Frog Sounds' is a a more advanced kit for under $20 for
a single unit; it is a bit up in complexity from the Pixie,
and the 40-9er. It does require a license to legally transmit
A really nice review is here;
https://2e0dfu.wordpress.com/2016/03/11/chinese-qrp-transceivers-3/
https://2e0dfu.files.wordpress.com/2016/03/scan-160130-0001.jpg
schematic
https://2e0dfu.files.wordpress.com/2016/03/scan-160130-0002.jpg
Instructions --- over 100 mW !! License needed
https://2e0dfu.files.wordpress.com/2016/03/scan-160129-0001.jpg
BOM
https://2e0dfu.files.wordpress.com/2016/03/57.jpg
Alternative schematic -- there is some suggestion of
minor component changes between implementations
($21 and up on Amazon)
https://www.banggood.com/10pcs-10P-2_54MM-Stackable-Long-Connector-Female-Pin-Header-p-1205370.html
long lead, 'wire-wrap ready sockets
a nice low end display of V and A, with computer ready output
https://www.banggood.com/DC-Meter-LCD-Digital-Dual-Display-Voltage-Current-Temperature-RS485-Interface-Optional-Modbus-p-1160876.html
$10
Another low end display of V and A in the ranges we are
interested in without the panel mount case
https://www.banggood.com/3A-DC-DC-Adjustable-Boost-Power-Supply-Module-With-Dual-LCD-Display-Voltage-Ammeter-With-Housing-p-1156605.html
$10
An interesting panel mount V and A display from two
monitored and displayed inputs
https://www.banggood.com/0-33V-0-3A-Four-Bit-Voltage-Current-Meter-DC-Double-Digital-LED-Display-Voltmeter-Ammeter-p-1060303.html
$7
a cheap low end VOM ($6)
https://www.banggood.com/ANENG-AN8201-Mini-Digital-Multimeter-Backlight-ACDC-Ammeter-Voltmeter-Ohm-Tester-1999-Counts-Pocket-p-1223855.html?rmmds=search&cu
[Harbour Freight will occasionally give these away as a
promotion]
more inexpensively available at Amazon
single strand 'wire-wrap' ready wire, 30 AWG size
https://smile.amazon.com/gp/product/B01LWI20M0/
305 Meters, mixed colors
$10
https://smile.amazon.com/gp/product/B008AGUAII/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1
305 Meters, blue
$12
https://smile.amazon.com/gp/product/B006C4ABR0/
50 FEET, blue
$9 ... mentioned as the spool is easier to handle
hand wire-wrap tool, and stripper for 30 AWG
https://smile.amazon.com/gp/product/B00BFYE0CY
WOW -- I bought for under $7 last month -- buy it off Bangood,
which had them for like $7
a 'Forty-9er' kit
https://www.amazon.com/SainSmart-Forty-9er-Shortwave-Transmitter-Telegraph/dp/B013SAOYPA/
a couple of 'stages' of send / receive circuitry, so probably
more selective. I seem to remember this from years ago in QRP
circles
$20
found it:
http://norcalqrp.org/files/49erOrigMnl.pdf
home site -- Northern California QRP club
writeup, theory of operation, PCB, BOM, and Schematic
slightly over the legal limit at 250 mW, so again a
license is required
http://www.w0ch.com/49er/norcal_49er.htm
http://www.farrukhzia.com/k2zia/Purdum0316-QST-in-Depth-AssemblyManual.pdf
Seemingly 'QST' -- the American Radio Relay League magazine
had an article as well:
http://www.farrukhzia.com/k2zia/Purdum0316-QST-in-Depth-AssemblyManual.pdf
a QRP hobby site with lots of similar kit:
http://www.w0ch.com/index.htm
Compare to:
A commercial and assembled QRP kit
https://www.amazon.com/MFJ-9340K-QRP-Cub-Transceiver-Meter/dp/B00AR0CPUQ/
About $100 for a nice case and a non-kit form
====================
SOLDERING
and Soldering per se
https://protostack.com.au/download/NASA%20Student%20Handbook%20for%20Hand%20Soldering.pdf
NASA Training Program
Student Workbook for
Hand Soldering
150 pps
comprehensive, but not tactical
-----------
https://snebulos.mit.edu/projects/reference/NASA-Generic/NASA-STD-8739-2.pdf
WORKMANSHIP STANDARD FOR
SURFACE MOUNT TECHNOLOGY
again, comprehensive
-----------
https://granasat.ugr.es/wp-content/uploads/2017/07/soldering_primer.pdf
SOLDERING
GUIDE
20 pps
more tactical
-----------
INSPIRE
Interactive
Nasa
Space
Physics
Ionosphere
Radio
Experiments
... yeah -- a bureaucrat approved _that_ one
http://theinspireproject.org/downloads/pdf/VLF_Instructions_Apr2011.pdf
.
VLF
Assembly Instructions
INSPIRE VLF
Receiver Kit
NASA driven, very professional
kitting and assembly guide
more: (Space Camp)
a longer and probably later version:
http://theinspireproject.org/downloads/INSPIRE_VLF3_Rev1C_Assembly_InstructionsOnline.pdf
http://theinspireproject.org/downloads/pdf/inspire%20Theory_of_Operations.pdf
THE INSPIRE VLF-3 RECEIVER
Theory of Operation
technical information and trouble shooting
guidance for the receiver
more files, audio samples, logging forms
http://theinspireproject.org/downloads/
but:
The INSPIRE Project
107 S West Street PMB #425
Alexandria, VA 22314 - 2824
7.
Include a write up accounting your procedure, location, and
observations and an article reporting on the results will be considered
in the next INSPIRE Journal
a bit pricey:
Kit Cost:
VLF-3 Radio Receiver Kit - $120.00 each + S H
http://theinspireproject.org/default.asp?contentID=27
The INSPIRE Project, Inc.
is a NASA educational portfolio program
The INSPIRE Project, Inc is a non-profit scientific
educational corporation that provides engaging opportunities
for students to observe naturally occurred Very Low Frequency
(VLF) waves generated by lightning and in the process gain
hands-on, real world experience in science and electronics. It
seeks to enhance educators knowledge of atmospheric and space
science to encourage our next generation of scientists.
INSPIRE’s educational platform serves a wide range of science,
technology, engineering and math (STEM) topics and programs.
sadly: barnacle bureaucrats in DC
https://oig.nasa.gov/audits/reports/FY16/IG-16-001.pdf
However, the Office’s efforts have been hampered by an outdated
strategic framework and a lack of long-term goals
upon which to evaluate the success of NASA’s educa
tion activities.Specifically, the Office of Education
did not update a 2006 framework document to align with the priorities outlined
in the Agency’s 2014 Strategic Plan until July 2015.
Furthermore, the updated framework did
not include measurable long-term goals that address the Nation’s need to
increase the number of students who earn advanced degrees in
preparation for STEM careers.
------------------
https://science.nasa.gov/learners
... forwards to:
https://science.nasa.gov/about-us/email-updates
and is complete
with an outlink to a dead ML
------------------
TI Op Amp tutorial and application guide
http://www.ti.com/lit/an/sboa092b/sboa092b.pdf
95 pps
-----------------
-- Russ herrold
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