Same with my boards. Looks like there are reverse flow protection diode built in to the 7805.
Raj
toggle quoted message
Show quoted text
At 17/12/2017, you wrote: Works even with five. I left the usb cable connected From the pc and switched off the dc suppy. Kill me, but it continued to receive at low volume.
- f
|
Re: Allard's Capacitive touch keyer
This looks like the adaptor I used to fix a movie camera tripod head to a
camera tripod stand base.
At 17/12/2017, you wrote:
toggle quoted message
Show quoted text
Have you looked at threaded
inserts?? Think of a pipe nipple that is threaded internally and
externally.
![[]](/g/BITX20/attachment/36056/)
There are several brands.? This is the first one I found.? If
you have a real hardware store with aisles full of bins and trays of
weird fasteners you might find some you can actually put your hands on
and find nuts and washers and bolts that work.
|
Re: Ordered the 10th, no tracking number yet
I ordered on the 10th Dec (Australian time) and I got notification at 2:12 am AEDT today (17th Dec) that the package had been posted.? Tracking number does not yet reveal anything, but that is par for the course.? I have found India Post to be reliable even if it takes two or three weeks to get down here.
I see that Sunil VU3SUA is advertising a case for the uBITX. No details as yet whether it is for that being sold and delivered by HFSignals, nor details on price nor a picture of it.
|
Re: ?BITX as a Tool for Recruiting New Hams
In the USA that is...
Dr.?William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ ? Owner - Operator Big Signal Ranch ¨C K9ZC Staunton, Illinois ? Owner ¨C Operator Villa Grand Piton - J68HZ Soufriere, St. Lucia W.I. Rent it:
email:??bill@... ?
toggle quoted message
Show quoted text
On Dec 16, 2017, at 7:04 PM, Jack Purdum via Groups.Io < jjpurdum@...> wrote: Simon:
I think your comment is a bit harsh and 1) I did not see it as a religious or political comment, but rather in line with my comments, and 2) this is a Forum and not air waves regulated by the FCC. Expressing one's opinion "off the air" is a Constitutional right in the US protected by the First Amendment.
Jack, W8TEE
Please keep your political/religious commentary off this forum. It is not, as you should know, being a licensed amateur, appropriate to discussions of amateur radio. You should know it, because it is a condition of your license.
Simon VE7SXS Thanks, Jack. I have been working at private, accredited ?Christian schools for the pat 14 years and they allow people from colleges & ?industry to teach as long as they show "some progress towards getting certified" as a high school teacher with the ACSI. That¡¯s quite easy, really.
I don¡¯t have a teaching credential either, just a BSEE, extensive MSEE course work and a MaEd.
Sadly the public school system is paralyzed with this thinking that a teacher MUST have a teaching credential to teach. There should be other ways to become a public school qualified teacher.?
Warmly,
WERNER G VAVKEN ? BSEE, MaEd
STEM Director Rancho Christian School
-303-1408 ?x6157 Cell: ? ?408-375-6165
On Dec 15, 2017, at 8:53 AM, Jack Purdum via Groups.Io < jjpurdum@...> wrote:
Werner:
That is so cool! I checked with a local high school when I was in Indiana about teaching a ham radio class as part of the STEM system. Even though I have a Ph.D. and 40 years of university teaching, I was told by the Principal I was not "properly qualified" to teach a HS class in IN. Maybe I should try again, as I now live in OH.
Dennis is a wonderful person to work with. I know just enough EE stuff to make him tear his hair out when I ask a question. Still, he has the patience of Job and can always frame an answer I can understand...and that's a?real?talent!
Thanks for this email...maybe I can fool some OH administrators into letting me in the classroom.
73, Jack, W8TEE
Jack, you are spot on. It is mission critical to get new hams ACTIVE both on the air (including HF) and also to get them on the road to get their hands dirty building hardware, including antennas.? The uBitx is a great way to do this that I will use next month¡see below. I ordered 8 of them and 8 plastic cases from BangGood.?
I am a retired EE with over 30+ years experience in designing hardware and radio systems from audio thru 40GHz. Teaching is my new passion. I have been teaching ham courses (and how to put science experiments on the ISS) at the high school level for over seven years. My ham classes (disguised with the name Satellite Tracking) is a high school level ?¡°science elective¡± and I offer it over three semesters to allow students to earn their Tech, General and Extra class licenses. Doing it over a 4+ month period, for each level, I actually get to TEACH the relevant material, have students build stuff and get them on the air. They also learn a lot about tracking satellites.
Every one of my new ham student ¡°earns" an Alinco DJ-G7 triband HT ?and an Elk LPA Antenna to track satellites if they pass the Tech exam. They also build an EggBeater antenna I designed and presented at recent Pacificon events,?
Next Semester they will each build one of the uBitx transceivers and a 40M dipole and they WILL get on HF!
BTW, Jack, we have a mutually close friend, Dennis -W6DQ, I manage the Collins Collectors Association West Coast Friday night NET on 3895 at 7PM. He is one of my NET control operators for that net!
Thanks for all you do for our Ham Radio hobby and, of course, your contributions to this uBitx, etc.
? 73¡¯²õ
WERNER G VAVKEN, WB6RAW Cell: 408-375-6165
On Dec 15, 2017, at 8:24 AM, Jack Purdum via Groups.Io < jjpurdum@...> wrote:
I changed the topic to narrow the focus. You're right, Joe, the social media sites have a lock on young people. My club gives the FCC exams every month (except Dec.) for free and we always have people show up; sometimes as many as three dozen. Most are going for the Tech license to get their toe wet. Then they buy a 2M HT and we never see them again. I did run into one guy almost a year later and asked how he was enjoying his license. He said: "I haven't done anything for the past several months. It doesn't even let me do what my cell phone does." We need to get Tech's more than just a small slice of 10M in the HF spectrum. Otherwise, I think they are missing out on 90% of what ham radio has to offer. When I was a Novice, we had small chunks of HF (e.g., 40M) to play with. True, you were rock-bound and limited to 75W and CW, but I spent almost all of my time on 40M. Britain has had more success than we have with young people, and I think part of the reason is because they give their Tech-equivalent hams small slices of spectrum on all bands, including HF. They are limited to 5W, but at least they can chase DX. Other than the rare atmospheric events, DX on 2M is a couple of counties away with the HT that most end up buying.
I look around at my club and I can almost hear the arteries calcifying. I can say that 'cuz I'm two years younger than dirt so I know the aging membership issues quite well. We need some younger members; perhaps younger than those who are recently married and starting their families. The real solution: I don't know, but there are things we can do. I have a FB account, but probably use it twice a year. I'm not on Twitter. I need to root around there for a while and see what I can do for the cause.
Jack, W8TEE
This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager.?This message may contain?confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited.
|
Re: ubitx cw listening width modification
I plan to add an inexpensive audio filter on the output.
Note also the the frequency you see in CW with the uBitx will differ from the frequency reported by commercial rigs that take into account a side tone offset in CW mode.
|
Re: In Line Resistive Terminators for Z Measurement? ?BITX Crystal Filter
No worries, Vince - thanks very much!
Andy
toggle quoted message
Show quoted text
On Sat, Dec 16, 2017 at 08:17 pm, Vince Vielhaber wrote:
Ignore that. Wearing the wrong glasses and thought you were looking for
attenuators, not terminators.
Vince.
|
Re: In Line Resistive Terminators for Z Measurement? ?BITX Crystal Filter
Sorry...the file names didn't make it into the post.? The top picture that could be a glove is with the 4:1 transformers installed.? The bottom one with the much smaller ripple has no matching devices - just crystals and caps.
toggle quoted message
Show quoted text
On Sat, Dec 16, 2017 at 07:20 pm, AndyH wrote:
Greetings RF Gurus - a noob has ascended to bother the masters. ;)
Would someone please point me to a schematic or other resource that would help me determine the correct resistor values so that I may construct a pair of resistive terminators?? I'm trying to figure out how to measure the impedance of the two crystal filters I've constructed.? VK2SJA has an excellent blog post, but I'm missing a vital piece of tribal knowledge, apparently.? (Ok, I'm missing a number of pieces of tribal and non tribal knowledge.? hi hi)? He used a pair of terminators with pots to determine his termination needs.
I built a pair of 8 crystal filters for a ?BITX, and assuming the 4:1 match, wound a pair of center-tapped toroidal transformers.? My new Sweeperino (a magical device that makes the invisible visible) showed me that my impedance matching guess was incorrect....like 10 dB of ripple's worth of incorrect.? :D
Iterating DISHAL suggests the filters are 75 ¦¸.? I'd like to measure them to know for sure.
Thanks all
Andy, KG5RKP
|
Re: In Line Resistive Terminators for Z Measurement? ?BITX Crystal Filter
Thanks Ashhar.? I'm enjoying the learning. :)? ?I have read W7ZIO's paper a couple of times and am understanding more of it now that I'm melting solder and getting more comfortable with DISHAL.? Frankly, I really don't know how 10 dB of ripple sounds as I've not put these into a rig yet.? So far I have a 2.7 KHz filter (170pF caps) that doesn't like my transformers, and I have a 4.2 KHz filter (with 100 pF caps) that also doesn't like my transformers.? I'm temped to leave them out (Minima style?)
I'll solder some resistors together and see what happens, if for no other reason than to see if I can 'trust' DISHAL's model.
Cheers sir,
Andy
toggle quoted message
Show quoted text
On Sat, Dec 16, 2017 at 08:12 pm, Ashhar Farhan wrote:
andy,?
this a terribly confusing topic. let me attempt it as best as i can from the phone.
a filter can be driven and terminated with any impedance without the rf police turning up at your doorstep.
the question, really, is what do you expect the filter to do. at every termination, it will show a different ripple and passband. here is a quick summary :
higher the value if caps, smaller the bandwidth. lower the impedance, lower the ripple. low ripple also means, worse skirt.
search out w7zoi paper on ladder filters.
- f
?
|
Many years ago I talked my Junior High shop teacher into letting me build a Heathkit Tower (aka Benton Harbor Lunchbox) in place of his lame project. It was a nice little rog for the time. Over the decades the Tower and the popularity of 2 meter AM disappeared. Last year I picked up a dead Lunchbox to recycle into a new project. I removed the chassis, thoroughly cleaned the case, replaced the speaker and installed the uBitx. I still need smaller washers for the panel mounts, to fit knobs and install indicator leds. I also plan to add an audio filter to use in CW mode. ?????? Bob 
|
Re: In Line Resistive Terminators for Z Measurement? ?BITX Crystal Filter
Ignore that. Wearing the wrong glasses and thought you were looking for attenuators, not terminators.
Vince.
toggle quoted message
Show quoted text
On 12/16/2017 11:14 PM, Vince Vielhaber wrote: I don't have a URL handy, but if you google "pi attenuator" you should
find the tables of what resistor combinations to use for various levels
of attenuation. There should also be a calculator or two in the mix.
Vince.
On 12/16/2017 10:20 PM, AndyH wrote:
Greetings RF Gurus - a noob has ascended to bother the masters. ;)
Would someone please point me to a schematic or other resource that
would help me determine the correct resistor values so that I may
construct a pair of resistive terminators? I'm trying to figure out how
to measure the impedance of the two crystal filters I've constructed.
VK2SJA has an excellent blog post, but I'm missing a vital piece of
tribal knowledge, apparently. (Ok, I'm missing a number of pieces of
tribal and non tribal knowledge. hi hi) He used a pair of terminators
with pots to determine his termination needs.
I built a pair of 8 crystal filters for a ?BITX, and assuming the 4:1
match, wound a pair of center-tapped toroidal transformers. My new
Sweeperino (a magical device that makes the invisible visible) showed me
that my impedance matching guess was incorrect....like 10 dB of ripple's
worth of incorrect. :D
Iterating DISHAL suggests the filters are 75 ¦¸. I'd like to measure
them to know for sure.
Thanks all
Andy, KG5RKP
--
Michigan VHF Corp.
|
Re: In Line Resistive Terminators for Z Measurement? ?BITX Crystal Filter
I don't have a URL handy, but if you google "pi attenuator" you should find the tables of what resistor combinations to use for various levels of attenuation. There should also be a calculator or two in the mix.
Vince.
toggle quoted message
Show quoted text
On 12/16/2017 10:20 PM, AndyH wrote: Greetings RF Gurus - a noob has ascended to bother the masters. ;)
Would someone please point me to a schematic or other resource that
would help me determine the correct resistor values so that I may
construct a pair of resistive terminators? I'm trying to figure out how
to measure the impedance of the two crystal filters I've constructed.
VK2SJA has an excellent blog post, but I'm missing a vital piece of
tribal knowledge, apparently. (Ok, I'm missing a number of pieces of
tribal and non tribal knowledge. hi hi) He used a pair of terminators
with pots to determine his termination needs.
I built a pair of 8 crystal filters for a ?BITX, and assuming the 4:1
match, wound a pair of center-tapped toroidal transformers. My new
Sweeperino (a magical device that makes the invisible visible) showed me
that my impedance matching guess was incorrect....like 10 dB of ripple's
worth of incorrect. :D
Iterating DISHAL suggests the filters are 75 ¦¸. I'd like to measure
them to know for sure.
Thanks all
Andy, KG5RKP
--
Michigan VHF Corp.
|
Re: In Line Resistive Terminators for Z Measurement? ?BITX Crystal Filter
andy,? this a terribly confusing topic. let me attempt it as best as i can from the phone. a filter can be driven and terminated with any impedance without the rf police turning up at your doorstep. the question, really, is what do you expect the filter to do. at every termination, it will show a different ripple and passband. here is a quick summary : higher the value if caps, smaller the bandwidth. lower the impedance, lower the ripple. low ripple also means, worse skirt. search out w7zoi paper on ladder filters. - f
On 17 Dec 2017 8:51 am, "AndyH" < ahecker@...> wrote: Greetings RF Gurus - a noob has ascended to bother the masters. ;)
Would someone please point me to a schematic or other resource that would help me determine the correct resistor values so that I may construct a pair of resistive terminators?? I'm trying to figure out how to measure the impedance of the two crystal filters I've constructed.? VK2SJA has an excellent blog post, but I'm missing a vital piece of tribal knowledge, apparently.? (Ok, I'm missing a number of pieces of tribal and non tribal knowledge.? hi hi)? He used a pair of terminators with pots to determine his termination needs.
I built a pair of 8 crystal filters for a ?BITX, and assuming the 4:1 match, wound a pair of center-tapped toroidal transformers.? My new Sweeperino (a magical device that makes the invisible visible) showed me that my impedance matching guess was incorrect....like 10 dB of ripple's worth of incorrect.? :D
Iterating DISHAL suggests the filters are 75 ¦¸.? I'd like to measure them to know for sure.
Thanks all
Andy, KG5RKP
 
|
In Line Resistive Terminators for Z Measurement? ?BITX Crystal Filter
Greetings RF Gurus - a noob has ascended to bother the masters. ;) Would someone please point me to a schematic or other resource that would help me determine the correct resistor values so that I may construct a pair of resistive terminators?? I'm trying to figure out how to measure the impedance of the two crystal filters I've constructed.? VK2SJA has an excellent blog post, but I'm missing a vital piece of tribal knowledge, apparently.? (Ok, I'm missing a number of pieces of tribal and non tribal knowledge.? hi hi)? He used a pair of terminators with pots to determine his termination needs. I built a pair of 8 crystal filters for a ?BITX, and assuming the 4:1 match, wound a pair of center-tapped toroidal transformers.? My new Sweeperino (a magical device that makes the invisible visible) showed me that my impedance matching guess was incorrect....like 10 dB of ripple's worth of incorrect.? :D Iterating DISHAL suggests the filters are 75 ¦¸.? I'd like to measure them to know for sure. Thanks all Andy, KG5RKP   
|
Re: Ordered the 10th, no tracking number yet
I also ordered on the 10th and had not heard anything as of last night so I emailed Ashar. He said it shipped but he's a little behind updating the statuses.?
--
John - WA2FZW
|
Re: ?BITX as a Tool for Recruiting New Hams
Ah, fellas...... Kindness and forbearance of others' differing viewpoints and/or perceived flaws are wonderful qualities. One of my mentors was incredibly patient with my failings even though we had radically different belief systems.... Thankfully even those with whom I disagree still have a right to their opinions in some parts of the world. On both sides. I happen to be about as "right wing" as one can be -- one of the people that Mr. Thompson speaks so derisively of --- and no, I, my family and my friends don't support evil, but we offer to assist those who wish to move away from evil towards the One who provided a way of escape. And you can find me at times providing free medical care to those who fall through the cracks......just as He did. Everyone is free to do as they choose..... Its a free country, its a free internet and my understanding was that it was a free airwave in general (I'll have to go look that up a bit more.....) --- but that also includes Mr. Thompson and the less derisive we are to each other, likely the better. Putting up with one another...... Gordon ________________________________________ From: [email protected] < [email protected]> on behalf of Vince Vielhaber <vev@...> Sent: Saturday, December 16, 2017 9:54 PM To: [email protected]Subject: Re: [BITX20] ?BITX as a Tool for Recruiting New Hams Don't bother Mike. He's just a snowflake in search of his playdough and safe space. Vince. On 12/16/2017 08:42 PM, Michael Hagen wrote: Hey, Get Off of It!
Jack is a Real Nice Guy!
Read His Books, read his Emails.
Everyone Loves Jack in Colorado!
Go find Political Correct Folks to find your Friends.
We are NOT!
You are on the Wrong Forum!
No MAS, Warmingly?
Mike, WA6ISP
On 12/16/2017 5:32 PM, Simon Thompson wrote:
Jack
You come across as a smart guy.
This is the best amateur radio forum on the internet, bar none. One of
the reasons it is so good is that it is apolitical. If someone comes
on the forum prattling on about how he works at a Christian
institution, and he can teach even though he is not qualified, and how
the education system in your country is paralyzed, these are comments
that have nothing to do with amateur radio. This is an amateur radio
forum. I would also add that evangelical Christianity appears to be
tearing your country apart, with its support for pedophilia and sexual
assault and racism re. Roy Moore, and I don¡¯t want to read about
someone's support for Evangelical Christian institutions or their
Evangelical Christian beliefs on this forum. Regardless of your
country¡¯s tolerance for unfettered free speech, which gives you the
idiocy of the Ku Klux Klan, Donald Trump, ¡°alternative facts,¡±
Birtherism, and an incomprehensible belief and reliance on a Sky Boss,
or Flying Spaghetti Monster, or whatever else you want to call it,
this is an amateur radio forum, and It should be devoted to amateur
radio, and not an individual¡¯s political or religious beliefs,
On Sat, Dec 16, 2017 at 5:04 PM Jack Purdum via Groups.Io
<jjpurdum@... <mailto:[email protected]>> wrote:
Simon:
I think your comment is a bit harsh and 1) I did not see it as a
religious or political comment, but rather in line with my
comments, and 2) this is a Forum and not air waves regulated by
the FCC. Expressing one's opinion "off the air" is a
Constitutional right in the US protected by the First Amendment.
Jack, W8TEE
------------------------------------------------------------------------
*From:* Simon Thompson <simonthompson67@...
<mailto:simonthompson67@...>>
*To:* [email protected] <mailto:[email protected]>
*Sent:* Saturday, December 16, 2017 7:41 PM
*Subject:* Re: [BITX20] ?BITX as a Tool for Recruiting New Hams
Please keep your political/religious commentary off this forum. It
is not, as you should know, being a licensed amateur, appropriate
to discussions of amateur radio. You should know it, because it is
a condition of your license.
Simon
VE7SXS
On Fri, Dec 15, 2017 at 9:13 AM Werner Vavken
<werner.vavken@...
<mailto:werner.vavken@...>> wrote:
Thanks, Jack. I have been working at private, accredited
Christian schools for the pat 14 years and they allow people
from colleges & industry to teach as long as they show "some
progress towards getting certified" as a high school teacher
with the ACSI. That¡¯s quite easy, really.
I don¡¯t have a teaching credential either, just a BSEE,
extensive MSEE course work and a MaEd.
Sadly the public school system is paralyzed with this thinking
that a teacher MUST have a teaching credential to teach. There
should be other ways to become a public school qualified teacher.
Warmly,
WERNER G VAVKEN BSEE, MaEd
STEM Director
Rancho Christian School
31300 Rancho Community Way
< >
Temecula, CA 92592
< >
Office: 951
< >-303-1408
x6157
Cell: 408-375-6165
On Dec 15, 2017, at 8:53 AM, Jack Purdum via Groups.Io
<jjpurdum@...
<mailto:jjpurdum@...>> wrote:
Werner:
That is so cool! I checked with a local high school when I
was in Indiana about teaching a ham radio class as part of
the STEM system. Even though I have a Ph.D. and 40 years of
university teaching, I was told by the Principal I was not
"properly qualified" to teach a HS class in IN. Maybe I
should try again, as I now live in OH.
Dennis is a wonderful person to work with. I know just enough
EE stuff to make him tear his hair out when I ask a question.
Still, he has the patience of Job and can always frame an
answer I can understand...and that's a /real /talent!
Thanks for this email...maybe I can fool some OH
administrators into letting me in the classroom.
73,
Jack, W8TEE
------------------------------------------------------------------------
*From:* WERNER G VAVKEN <wernervavken@...
<mailto:wernervavken@...>>
*To:* [email protected] <mailto:[email protected]>
*Sent:* Friday, December 15, 2017 11:42 AM
*Subject:* Re: [BITX20] ?BITX as a Tool for Recruiting New Hams
Jack, you are spot on. It is mission critical to get new hams
ACTIVE both on the air (including HF) and also to get them on
the road to get their hands dirty building hardware,
including antennas. The uBitx is a great way to do this that
I will use next month¡see below. I ordered 8 of them and 8
plastic cases from BangGood.
I am a retired EE with over 30+ years experience in designing
hardware and radio systems from audio thru 40GHz. Teaching is
my new passion. I have been teaching ham courses (and how to
put science experiments on the ISS) at the high school level
for over seven years. My ham classes (disguised with the name
Satellite Tracking) is a high school level ¡°science
elective¡± and I offer it over three semesters to allow
students to earn their Tech, General and Extra class
licenses. Doing it over a 4+ month period, for each level, I
actually get to TEACH the relevant material, have students
build stuff and get them on the air. They also learn a lot
about tracking satellites.
Every one of my new ham student ¡°earns" an Alinco DJ-G7
triband HT and an Elk LPA Antenna to track satellites if
they pass the Tech exam. They also build an EggBeater antenna
I designed and presented at recent Pacificon events,
Next Semester they will each build one of the uBitx
transceivers and a 40M dipole and they WILL get on HF!
BTW, Jack, we have a mutually close friend, Dennis -W6DQ, I
manage the Collins Collectors Association West Coast Friday
night NET on 3895 at 7PM. He is one of my NET control
operators for that net!
Thanks for all you do for our Ham Radio hobby and, of course,
your contributions to this uBitx, etc.
73¡¯²õ
<PastedGraphic-1.tiff>
WERNER G VAVKEN, WB6RAW
wernervavken@... <mailto:wernervavken@...>
Cell: 408-375-6165
On Dec 15, 2017, at 8:24 AM, Jack Purdum via Groups.Io
<jjpurdum@...
<mailto:jjpurdum@...>> wrote:
I changed the topic to narrow the focus. You're right, Joe,
the social media sites have a lock on young people. My club
gives the FCC exams every month (except Dec.) for free and
we always have people show up; sometimes as many as three
dozen. Most are going for the Tech license to get their toe
wet. Then they buy a 2M HT and we never see them again. I
did run into one guy almost a year later and asked how he
was enjoying his license. He said: "I haven't done anything
for the past several months. It doesn't even let me do what
my cell phone does." We need to get Tech's more than just a
small slice of 10M in the HF spectrum. Otherwise, I think
they are missing out on 90% of what ham radio has to offer.
When I was a Novice, we had small chunks of HF (e.g., 40M)
to play with. True, you were rock-bound and limited to 75W
and CW, but I spent almost all of my time on 40M. Britain
has had more success than we have with young people, and I
think part of the reason is because they give their
Tech-equivalent hams small slices of spectrum on all bands,
including HF. They are limited to 5W, but at least they can
chase DX. Other than the rare atmospheric events, DX on 2M
is a couple of counties away with the HT that most end up
buying.
I look around at my club and I can almost hear the arteries
calcifying. I can say that 'cuz I'm two years younger than
dirt so I know the aging membership issues quite well. We
need some younger members; perhaps younger than those who
are recently married and starting their families. The real
solution: I don't know, but there are things we can do. I
have a FB account, but probably use it twice a year. I'm not
on Twitter. I need to root around there for a while and see
what I can do for the cause.
Jack, W8TEE
<PastedGraphic-1.tiff>
/This email and any files transmitted with it are confidential
and intended solely for the use of the individual or entity to
whom they are addressed. If you have received this email in
error please notify the system manager. This message may
contain confidential information and is intended only for the
individual named. If you are not the named addressee you
should not disseminate, distribute or copy this e-mail. Please
notify the sender immediately by e-mail if you have received
this e-mail by mistake and delete this e-mail from your
system. If you are not the intended recipient you are notified
that disclosing, copying, distributing or taking any action in
reliance on the contents of this information is strictly
prohibited./
--
Mike Hagen, WA6ISP
10917 Bryant Street
Yucaipa, Ca. 92399
(909) 918-0058
PayPal ID "MotDog@..."
Mike@...
-- Michigan VHF Corp.
|
Re: Ordered the 10th, no tracking number yet
Gordon,
Thanks for the kind words! I'm delighted my videos are helpful. I won't bother HFSIGS now. I'll give them several more days. I'm just impatient!
73, Dave
|
Re: ubitx cw listening width modification
The ubitx is quitr hackable that way. Here is a hack. You take the signal off from both ends of the crystal filter and add a parallel one, say at 1.8432 mhz. This will provide a very narrow cw filter. Now, all you have to do to switch the filter is change your second if to 45 mhz + 1.8432 mhz. viola! narrow band cw
On 17 Dec 2017 8:16 am, "Gordon Gibby" < ggibby@...> wrote:
Hi Brien --? ?
The filter width is set by a crystal filter.? ?The Raduino? (Arduino-controlled VFO)?does not produce the audio signal, so I don't think you would be able to introduce an audio digital filter within it.? ?
You could add an audio filter to the output (digital or otherwise)? or you could electrically alter the configuration of the crystal filter that sets the bandwidth.? ?My BitX40's only had 4 cystals (quite fewer than the uBitx) and appeared to me to have
a narrower bandwidth.? ?It is possible that you could use capacitors or wiring to bypass (or "pull" with capacitors/inductors) some of the cyrstals in the filter to make it narrower.? ??
That's the limit of my knowledge, perhaps others will offer better solutions.? ?
Thanks!
Gordon?
In my quick read of the circuit description it says the same width for listening to SSB and CW, but that there is no reason the Arduino code could not be altered to provide a 500 hz bandwidth.
That would be absolutely required for me... I realize this is a fairly reasonably priced kit for what ALL it does, but I am very used to using 600 hz for general tuning around and? narrower at around 500 or 400 for QSO operation... if not narrow sometimes
in regard to band congestion... so am interested in what the CW ops might say on this topic re. operation.
Brien
VE3VAW
Toronto ON Canada
---------- Original Message ----------
From: Doug W <KD9CYF@...>
Date: December 9, 2017 at 5:28 PM
Thanks for all your work Ashhar.? Just ordered mine.
I don't know if it aired outside of the US but there is an old commercial for Lay's potato chips (crisps) that comes to mind...
?
|
Re: ?BITX as a Tool for Recruiting New Hams
Don't bother Mike. He's just a snowflake in search of his playdough and safe space.
Vince.
toggle quoted message
Show quoted text
On 12/16/2017 08:42 PM, Michael Hagen wrote: Hey, Get Off of It!
Jack is a Real Nice Guy!
Read His Books, read his Emails.
Everyone Loves Jack in Colorado!
Go find Political Correct Folks to find your Friends.
We are NOT!
You are on the Wrong Forum!
No MAS, Warmingly?
Mike, WA6ISP
On 12/16/2017 5:32 PM, Simon Thompson wrote:
Jack
You come across as a smart guy.
This is the best amateur radio forum on the internet, bar none. One of
the reasons it is so good is that it is apolitical. If someone comes
on the forum prattling on about how he works at a Christian
institution, and he can teach even though he is not qualified, and how
the education system in your country is paralyzed, these are comments
that have nothing to do with amateur radio. This is an amateur radio
forum. I would also add that evangelical Christianity appears to be
tearing your country apart, with its support for pedophilia and sexual
assault and racism re. Roy Moore, and I don¡¯t want to read about
someone's support for Evangelical Christian institutions or their
Evangelical Christian beliefs on this forum. Regardless of your
country¡¯s tolerance for unfettered free speech, which gives you the
idiocy of the Ku Klux Klan, Donald Trump, ¡°alternative facts,¡±
Birtherism, and an incomprehensible belief and reliance on a Sky Boss,
or Flying Spaghetti Monster, or whatever else you want to call it,
this is an amateur radio forum, and It should be devoted to amateur
radio, and not an individual¡¯s political or religious beliefs,
On Sat, Dec 16, 2017 at 5:04 PM Jack Purdum via Groups.Io
<jjpurdum@... <mailto:[email protected]>> wrote:
Simon:
I think your comment is a bit harsh and 1) I did not see it as a
religious or political comment, but rather in line with my
comments, and 2) this is a Forum and not air waves regulated by
the FCC. Expressing one's opinion "off the air" is a
Constitutional right in the US protected by the First Amendment.
Jack, W8TEE
------------------------------------------------------------------------
*From:* Simon Thompson <simonthompson67@...
<mailto:simonthompson67@...>>
*To:* [email protected] <mailto:[email protected]>
*Sent:* Saturday, December 16, 2017 7:41 PM
*Subject:* Re: [BITX20] ?BITX as a Tool for Recruiting New Hams
Please keep your political/religious commentary off this forum. It
is not, as you should know, being a licensed amateur, appropriate
to discussions of amateur radio. You should know it, because it is
a condition of your license.
Simon
VE7SXS
On Fri, Dec 15, 2017 at 9:13 AM Werner Vavken
<werner.vavken@...
<mailto:werner.vavken@...>> wrote:
Thanks, Jack. I have been working at private, accredited
Christian schools for the pat 14 years and they allow people
from colleges & industry to teach as long as they show "some
progress towards getting certified" as a high school teacher
with the ACSI. That¡¯s quite easy, really.
I don¡¯t have a teaching credential either, just a BSEE,
extensive MSEE course work and a MaEd.
Sadly the public school system is paralyzed with this thinking
that a teacher MUST have a teaching credential to teach. There
should be other ways to become a public school qualified teacher.
Warmly,
WERNER G VAVKEN BSEE, MaEd
STEM Director
Rancho Christian School
31300 Rancho Community Way
<,+CA+92592+Office:+951&entry=gmail&source=g>
Temecula, CA 92592
<,+CA+92592+Office:+951&entry=gmail&source=g>
Office: 951
<,+CA+92592+Office:+951&entry=gmail&source=g>-303-1408
x6157
Cell: 408-375-6165
On Dec 15, 2017, at 8:53 AM, Jack Purdum via Groups.Io
<jjpurdum@...
<mailto:jjpurdum@...>> wrote:
Werner:
That is so cool! I checked with a local high school when I
was in Indiana about teaching a ham radio class as part of
the STEM system. Even though I have a Ph.D. and 40 years of
university teaching, I was told by the Principal I was not
"properly qualified" to teach a HS class in IN. Maybe I
should try again, as I now live in OH.
Dennis is a wonderful person to work with. I know just enough
EE stuff to make him tear his hair out when I ask a question.
Still, he has the patience of Job and can always frame an
answer I can understand...and that's a /real /talent!
Thanks for this email...maybe I can fool some OH
administrators into letting me in the classroom.
73,
Jack, W8TEE
------------------------------------------------------------------------
*From:* WERNER G VAVKEN <wernervavken@...
<mailto:wernervavken@...>>
*To:* [email protected] <mailto:[email protected]>
*Sent:* Friday, December 15, 2017 11:42 AM
*Subject:* Re: [BITX20] ?BITX as a Tool for Recruiting New Hams
Jack, you are spot on. It is mission critical to get new hams
ACTIVE both on the air (including HF) and also to get them on
the road to get their hands dirty building hardware,
including antennas. The uBitx is a great way to do this that
I will use next month¡see below. I ordered 8 of them and 8
plastic cases from BangGood.
I am a retired EE with over 30+ years experience in designing
hardware and radio systems from audio thru 40GHz. Teaching is
my new passion. I have been teaching ham courses (and how to
put science experiments on the ISS) at the high school level
for over seven years. My ham classes (disguised with the name
Satellite Tracking) is a high school level ¡°science
elective¡± and I offer it over three semesters to allow
students to earn their Tech, General and Extra class
licenses. Doing it over a 4+ month period, for each level, I
actually get to TEACH the relevant material, have students
build stuff and get them on the air. They also learn a lot
about tracking satellites.
Every one of my new ham student ¡°earns" an Alinco DJ-G7
triband HT and an Elk LPA Antenna to track satellites if
they pass the Tech exam. They also build an EggBeater antenna
I designed and presented at recent Pacificon events,
Next Semester they will each build one of the uBitx
transceivers and a 40M dipole and they WILL get on HF!
BTW, Jack, we have a mutually close friend, Dennis -W6DQ, I
manage the Collins Collectors Association West Coast Friday
night NET on 3895 at 7PM. He is one of my NET control
operators for that net!
Thanks for all you do for our Ham Radio hobby and, of course,
your contributions to this uBitx, etc.
73¡¯²õ
<PastedGraphic-1.tiff>
WERNER G VAVKEN, WB6RAW
wernervavken@... <mailto:wernervavken@...>
Cell: 408-375-6165
On Dec 15, 2017, at 8:24 AM, Jack Purdum via Groups.Io
<jjpurdum@...
<mailto:jjpurdum@...>> wrote:
I changed the topic to narrow the focus. You're right, Joe,
the social media sites have a lock on young people. My club
gives the FCC exams every month (except Dec.) for free and
we always have people show up; sometimes as many as three
dozen. Most are going for the Tech license to get their toe
wet. Then they buy a 2M HT and we never see them again. I
did run into one guy almost a year later and asked how he
was enjoying his license. He said: "I haven't done anything
for the past several months. It doesn't even let me do what
my cell phone does." We need to get Tech's more than just a
small slice of 10M in the HF spectrum. Otherwise, I think
they are missing out on 90% of what ham radio has to offer.
When I was a Novice, we had small chunks of HF (e.g., 40M)
to play with. True, you were rock-bound and limited to 75W
and CW, but I spent almost all of my time on 40M. Britain
has had more success than we have with young people, and I
think part of the reason is because they give their
Tech-equivalent hams small slices of spectrum on all bands,
including HF. They are limited to 5W, but at least they can
chase DX. Other than the rare atmospheric events, DX on 2M
is a couple of counties away with the HT that most end up
buying.
I look around at my club and I can almost hear the arteries
calcifying. I can say that 'cuz I'm two years younger than
dirt so I know the aging membership issues quite well. We
need some younger members; perhaps younger than those who
are recently married and starting their families. The real
solution: I don't know, but there are things we can do. I
have a FB account, but probably use it twice a year. I'm not
on Twitter. I need to root around there for a while and see
what I can do for the cause.
Jack, W8TEE
<PastedGraphic-1.tiff>
/This email and any files transmitted with it are confidential
and intended solely for the use of the individual or entity to
whom they are addressed. If you have received this email in
error please notify the system manager. This message may
contain confidential information and is intended only for the
individual named. If you are not the named addressee you
should not disseminate, distribute or copy this e-mail. Please
notify the sender immediately by e-mail if you have received
this e-mail by mistake and delete this e-mail from your
system. If you are not the intended recipient you are notified
that disclosing, copying, distributing or taking any action in
reliance on the contents of this information is strictly
prohibited./
--
Mike Hagen, WA6ISP
10917 Bryant Street
Yucaipa, Ca. 92399
(909) 918-0058
PayPal ID "MotDog@..."
Mike@...
--
Michigan VHF Corp.
|
Re: Ordered the 10th, no tracking number yet
?Dave --- I didn'thear anything until later in the day TODAY and I had ordered by paypal on the 9th....so I think you might have to wait another day or so.....and by the way, we have used your wonderful youtubes for Ithink THREE ham radio classes now in
Gainesville FL and we had FIVE people pass the EXTRA with your help this year....
gordon
toggle quoted message
Show quoted text
|
Re: ?BITX as a Tool for Recruiting New Hams
You are right, Will.?
Folks from the trades need to be trained on the craft of teaching.?
Sadly, many engineers/techies make poor educators....but when trained on how to properly teach they can be effective if they use the training. ?
Maybe that¡¯s the key. Give people from the trades some partial credit toward a teaching credential, for their technical prowess & experience in their field, but then require some compulsory training in educational matters.? 73
Werner, WB6RAW
Sent from my iPhone
On Dec 16, 2017, at 5:49 PM, William Kimber < zl1tao@...> wrote:
I would just point out that in the local ZL news this week there
lamentations that a teacher qualification was needed.? Persons
with a lifetime of trade knowledge just were not able to teach.?
Even if there was shortage in the field of knowledge.
Cheers,
Will
ZL1TAO
On 17/12/17 14:43, Jack Purdum via
Groups.Io wrote:
Simon:
If you
read his first post, it was about reaching out to young people
and bringing them into the fold of amateur radio, and that
often means a contact with them at school. Both his and my
comments after that fell out from the initial thought, which
was very much in line with amateur radio. As to poking fun at
my country, not a good idea on your part. I had a summer home
in your country for over 30 years and we can discuss your
country's shortcomings if you wish to contact me off line.?
My
participation in this thread is done.
Jack,
W8TEE
Jack
You
come across as a smart guy.
This
is the best amateur radio forum on the internet,
bar none. One of the reasons it is so good is
that it is apolitical. If someone comes on the
forum prattling on about how he works at a
Christian institution, and he can teach even
though he is not qualified, and how the
education system in your country is paralyzed,
these are comments that have nothing to do with
amateur radio. This is an amateur radio forum. I
would also add that evangelical Christianity
appears to be tearing your country apart, with
its support for pedophilia and sexual assault
and racism re. Roy Moore, and I don¡¯t want to
read about someone's support for Evangelical
Christian institutions or their Evangelical
Christian beliefs on this forum. Regardless of
your country¡¯s tolerance for unfettered free
speech, which gives you the idiocy of the Ku
Klux Klan, Donald Trump, ¡°alternative facts,¡±
Birtherism, and an incomprehensible belief and
reliance on a Sky Boss, or Flying Spaghetti
Monster, or whatever else you want to call it,
this is an amateur radio forum, and It should be
devoted to amateur radio, and not an
individual¡¯s political or religious beliefs,
On
Sat, Dec 16, 2017 at 5:04 PM Jack Purdum via
Groups.Io <jjpurdum= [email protected]>
wrote:
Simon:
I
think your comment is a bit harsh and 1)
I did not see it as a religious or
political comment, but rather in line
with my comments, and 2) this is a Forum
and not air waves regulated by the FCC.
Expressing one's opinion "off the air"
is a Constitutional right in the US
protected by the First Amendment.
Jack,
W8TEE
Subject:
Re: [BITX20] ?BITX as a Tool for
Recruiting New Hams
Please
keep your
political/religious
commentary off this forum.
It is not, as you should
know, being a licensed
amateur, appropriate to
discussions of amateur
radio. You should know it,
because it is a condition
of your license.
Simon
VE7SXS
Thanks, Jack. I have been working at
private, accredited
?Christian schools for
the pat 14 years and
they allow people from
colleges &
?industry to teach as
long as they show
"some progress towards
getting certified" as
a high school teacher
with the ACSI. That¡¯s
quite easy, really.
I
don¡¯t have a
teaching credential
either, just a BSEE,
extensive MSEE
course work and a
MaEd.
Sadly the public
school system is
paralyzed with this
thinking that a
teacher MUST have a
teaching credential
to teach. There
should be other ways
to become a public
school qualified
teacher.?
Warmly,
WERNER G
VAVKEN ? BSEE,
MaEd
STEM
Director
Rancho
Christian
School
-303-1408 ?x6157
Cell:
?
?408-375-6165
On Dec
15, 2017, at
8:53 AM, Jack
Purdum via
Groups.Io < jjpurdum@...>
wrote:
Werner:
That
is so cool! I
checked with a
local high
school when I
was in Indiana
about teaching
a ham radio
class as part
of the STEM
system. Even
though I have
a Ph.D. and 40
years of
university
teaching, I
was told by
the Principal
I was not
"properly
qualified" to
teach a HS
class in IN.
Maybe I should
try again, as
I now live in
OH.
Dennis
is a wonderful
person to work
with. I know
just enough EE
stuff to make
him tear his
hair out when
I ask a
question.
Still, he has
the patience
of Job and can
always frame
an answer I
can
understand...and
that's a?real?talent!
Thanks
for this
email...maybe
I can fool
some OH
administrators
into letting
me in the
classroom.
73,
Jack,
W8TEE
From:?WERNER
G VAVKEN < wernervavken@...>
To:?[email protected]?
Sent:?Friday,
December 15,
2017 11:42 AM
Subject:?Re:
[BITX20] ?BITX
as a Tool for
Recruiting New
Hams
Jack,
you are spot
on. It is
mission
critical to
get new hams
ACTIVE both on
the air
(including HF)
and also to
get them on
the road to
get their
hands dirty
building
hardware,
including
antennas.? The
uBitx is a
great way to
do this that I
will use next
month¡see
below. I
ordered 8 of
them and 8
plastic cases
from
BangGood.?
I
am a retired
EE with over
30+ years
experience in
designing
hardware and
radio systems
from audio
thru 40GHz.
Teaching is my
new passion. I
have been
teaching ham
courses (and
how to put
science
experiments on
the ISS) at
the high
school level
for over seven
years. My ham
classes
(disguised
with the name
Satellite
Tracking) is a
high school
level
?¡°science
elective¡± and
I offer it
over three
semesters to
allow students
to earn their
Tech, General
and Extra
class
licenses.
Doing it over
a 4+ month
period, for
each level, I
actually get
to TEACH the
relevant
material, have
students build
stuff and get
them on the
air. They also
learn a lot
about tracking
satellites.
Every
one of my new
ham student
¡°earns" an
Alinco DJ-G7
triband HT
?and an Elk
LPA Antenna to
track
satellites if
they pass the
Tech exam.
They also
build an
EggBeater
antenna I
designed and
presented at
recent
Pacificon
events,?
Next
Semester they
will each
build one of
the uBitx
transceivers
and a 40M
dipole and
they WILL get
on HF!
BTW,
Jack, we have
a mutually
close friend,
Dennis -W6DQ,
I manage the
Collins
Collectors
Association
West Coast
Friday night
NET on 3895 at
7PM. He is one
of my NET
control
operators for
that net!
Thanks
for all you do
for our Ham
Radio hobby
and, of
course, your
contributions
to this uBitx,
etc.
?
73¡¯²õ
WERNER
G VAVKEN,
WB6RAW
Cell:
408-375-6165
On
Dec 15, 2017,
at 8:24 AM,
Jack Purdum
via Groups.Io
< jjpurdum@...> wrote:
I
changed the
topic to
narrow the
focus. You're
right, Joe,
the social
media sites
have a lock on
young people.
My club gives
the FCC exams
every month
(except Dec.)
for free and
we always have
people show
up; sometimes
as many as
three dozen.
Most are going
for the Tech
license to get
their toe wet.
Then they buy
a 2M HT and we
never see them
again. I did
run into one
guy almost a
year later and
asked how he
was enjoying
his license.
He said: "I
haven't done
anything for
the past
several
months. It
doesn't even
let me do what
my cell phone
does." We need
to get Tech's
more than just
a small slice
of 10M in the
HF spectrum.
Otherwise, I
think they are
missing out on
90% of what
ham radio has
to offer. When
I was a
Novice, we had
small chunks
of HF (e.g.,
40M) to play
with. True,
you were
rock-bound and
limited to 75W
and CW, but I
spent almost
all of my time
on 40M.
Britain has
had more
success than
we have with
young people,
and I think
part of the
reason is
because they
give their
Tech-equivalent
hams small
slices of
spectrum on
all bands,
including HF.
They are
limited to 5W,
but at least
they can chase
DX. Other than
the rare
atmospheric
events, DX on
2M is a couple
of counties
away with the
HT that most
end up buying.
I look around
at my club and
I can almost
hear the
arteries
calcifying. I
can say that
'cuz I'm two
years younger
than dirt so I
know the aging
membership
issues quite
well. We need
some younger
members;
perhaps
younger than
those who are
recently
married and
starting their
families. The
real solution:
I don't know,
but there are
things we can
do. I have a
FB account,
but probably
use it twice a
year. I'm not
on Twitter. I
need to root
around there
for a while
and see what I
can do for the
cause.
Jack, W8TEE
This
email and any
files
transmitted with
it are
confidential and
intended solely
for the use of
the individual
or entity to
whom they are
addressed. If
you have
received this
email in error
please notify
the system
manager.?This
message may
contain?confidential
information and
is intended only
for the
individual
named. If you
are not the
named addressee
you should not
disseminate,
distribute or
copy this
e-mail. Please
notify the
sender
immediately by
e-mail if you
have received
this e-mail by
mistake and
delete this
e-mail from your
system. If you
are not the
intended
recipient you
are notified
that disclosing,
copying,
distributing or
taking any
action in
reliance on the
contents of this
information is
strictly
prohibited.
|
Raj vu2zap
K9HZ
Bob Benedict, KD8CGH
