I'm not sure what the question is, but those look like 4500 micro-farad, 150VDC
electrolytic caps. What would the HP manual tell you about them?
On Fri, 14 Jan 2005 09:12:18 +1200, Richard T. Perry
[EMAIL PROTECTED] wrote:
Since this list is a font of everything electronic, can y'all help me
On Apr 5, 2005 11:56 AM, EricJ [EMAIL PROTECTED] wrote:
There is a nameless ham on one of the several cw nets I am on
who has NEVER sent my call properly. His only consistency is a self standing
dah followed by a string of 7 dits for the 6 in my call.
Maybe he's sending six dits for the
If the strip reader was built in you had the HP-65. Later the HP-41
(31?) series had a strip reader as and optional plug on unit. I used
the HP-IL to RS232 converter with my HP41.
Mark
On 4/18/05, Dan Barker [EMAIL PROTECTED] wrote:
Reminds me of my first, professional, programming job. The
What do you guys think? Also, is there a support group for those who
are addicted to building these things?
I thought this was the support group for those who are addicted to building
Elecraft rigs??
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I would like to get my K2 up off the desk and mount it under a shelf.
You'll probably need an external speaker.
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I don't think that's quite true. BC stations survive direct hits every
day.
well ... sort of. I used to make a reasonable living repairing BC
stations in upstate NY. Got real good at repairing HV power supplies.
It is fun to stand at the base of an AM tower and watch the arc fly
across
Check your Lisa gram (a/k/a Katie gram), the one that arrived at this
QTH included the following line of text:
A shipping notification will be sent within 24 hours of your shipment.
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You must be
I am thinking I will get some aluminum sided insulation that you
see in rolls at Lowes and use it as an assembly mat.
The normal anti-static mat has a high resistance per square. An
aluminum mat will have a very low resistance.
How much damage is done to a powered up board when it is placed the
Whatsay?
I'd say this is the wrong place to ask. Call Elecraft!
Mark AD5SS
On Wed, Apr 2, 2008 at 1:32 PM, Dave Hachadorian [EMAIL PROTECTED] wrote:
After receiving one's Katiegram, can you change the order from
factory-assembled to a kit? I would like to build it myself, but delivery of
Right! get a conductive mat, with a HIGH-RESISTANCE per square.
Mark
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..make that QRM
On Sat, Apr 5, 2008 at 2:43 PM, Mark Bayern [EMAIL PROTECTED] wrote:
Salt water is funny stuff. It seems to work better around rare DX islands
than it does, like say, from a beach in Florida. Wonder why?
Fewer neighbors with QRN generators
Salt water is funny stuff. It seems to work better around rare DX islands
than it does, like say, from a beach in Florida. Wonder why?
Fewer neighbors with QRN generators?
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You must be a
The K3 was shipped 8-9 months too soon, given the immature state of
the firmware. This behavior would have been wildly and viscously
attacked if exhibited by a Japanese manufacturer.
...only because a Japanese manufacturer would have made you purchase
the next model to get newer firmware
Hang in there -- if you have to do MS stuff don't drop XP until we see
what Windows 7 looks like.
Mark
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I think what I want rules out most Heil communication microphones. I
probably need a studio microphone with push to talk. I have an external PTT
...
Well if you want studio microphones, Heil is a possibility, you just
need to be on the 'pro' side of the website, and not the
'communications'
The proset, even for the K2, has a stereo connector for the headphones
and a mono connector for the mic.
I purchased one from Elecraft for the K2, and it is working well on
the rear panel connectors of the K3.
Mark
On Tue, May 6, 2008 at 11:48 PM, Bruce McLaughlin [EMAIL PROTECTED] wrote:
Software isn't bug free until you stop using it.
The only way to know your program is correct is to never find the
first error -- Harlan Mills ca. 1969 (back when the comp sci guys
were seriously working on formal methods to prove program correctness)
Mark AD5SS
Anyone hear if Elecraft or any of the other guys made any new product
announcements at Dayton today?
I haven't heard of any from Elecraft. Wayne didn't mention any in his
talk at the Kit Building forum.
Budd W3FF however, showed up that the FDIM evening vendors event with
a thing that appears to
Additionally, it really constitutes a 2nd receiver, which l sorts of
possibilities.
... well ... it is a 2nd receiver for any signal that is available to
it from the K3's IF. That means only signals that make it through the
passband filter.
Mark AD5SS
On Sun, May 18, 2008 at 5:56 PM,
Au contrare - K3's IF output is shown on the schematics to clearly be
taken before the crystal filters.
Maybe I should have said, 'bandpass filters'? I checked before I wrote
the message and knew that the IF pickup is before the roofing filters.
...sorry for any confusion
Mark AD5SS
On
You must have missed the post this afternoon from Eric with the
subject 'Lead Time':
We are continually ramping up our production rate on a weekly basis.
We are definitely producing now at a sustained rate higher than we
were 3-4 months ago, and our plans in place are for this to increase
another
Sure sounds easier than turning off the plate supply, opening the top
of the cabinet, changing the coil(s), closing it up, turning the HV on
again, then tuning the rig for the new band.
Mark AD5SS
On Thu, May 29, 2008 at 3:04 PM, David Ferrington, M0XDF
[EMAIL PROTECTED] wrote:
5 presses?
You forgot to add changing the coils in the HRO receiver :^)
Also forgot changing the crystal ... but you get the point.
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The Art of Computer Programming was written in the mid-60s, and
would certainly have fixed the usage of the term by then.
_was_ written in the mid-60s? ... volume 1 maybe. Volume 4 is
currently shown as 'in preparation'. When I first realized that the
work had expanded to 7 volumes I was afraid
This reflector is probably good place to watch. Occasionally someone
offers up a K3 for sale.
An alternative is to call Elecraft. They have K3s -- maybe not
pre-owned, but ...
Mark
On Wed, Sep 16, 2009 at 2:18 PM, Simon Worsley simon.wors...@yahoo.com wrote:
Does anyone know where I can buy a
This is of course ignoring the dirty signal you are producing.
Maybe he's CW only and doesn't need a linear amp.
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Rick,
So far when I've had to get into the K3 for options mods, the
instructions that came with the option or mod explained very carefully
and clearly how to get into the specific area of the K3.
Mark
On Sun, Sep 27, 2009 at 10:03 PM, Richard Jones r...@prismnet.com wrote:
Hey Dave,
I
I'm wondering if the original question was really about the concentric
knobs. At one point I heard of a few problems ... but usually by the
time I'd anything hear it was, I'm amazed Elecraft got the new knobs
out to me so quickly!.
Mark AD5SS
On Fri, Oct 2, 2009 at 11:57 AM, Eric Swartz -
Elecraft has developed and shown QRO amplifiers in the past. Here is
a comment from Eric that he posted 10/31/07 about the delay getting
the amps into production:
Actually, the main reason for delay on the KPA800/1500 Amps was the K3.
Almost 12 months ago we decided that we could not bring both
Another Elecraft feature to add to Wayne's list:
- a reply to your question from the rig's designer.
On Tue, Jan 5, 2010 at 8:36 PM, Wayne Burdick n...@elecraft.com wrote:
(Disclaimer: I'm biased, by definition :)
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How do I do a master reset and where would I find a list of all the Menu
Sounds like you need to read the manual. Electronic copies can be
obtained from the Elecraft website.
Be careful with that master reset. It should have no effect on any PTT
problems, but it will loose all the filter
Will the stubby helical whip really be 50ohms at the freq out from the
XVTR OUT jack? Are you willing to bet your calibration on it?
Mark AD5SS
On Wed, Feb 11, 2009 at 3:26 PM, James Sarte kc2...@gmail.com wrote:
Dear group,
Page 50 of the user manual states that a 50 ohm resistor should
I bet Eric is coming along to squash this thread soon!
You win!
On Tue, Feb 17, 2009 at 7:35 PM, Vic K2VCO v...@rakefet.com wrote:
Wes Stewart wrote:
OK, I considered it: The Swan was a ten-meter transceiver that received on
11-meters.
My K3 receives the BC band to 30 Mhz, including
Anyone on the list experience this problem before?
Yep. Not me, but here is the description of the KPA3 12V sense mod
on the Elecraft website:
This modification adds a diode to the KPA3 12V sense circuit to hold
the voltage to no more than 0.6V when the K3 is turned off. Without
it, some K3s
Then VLF, then 70Mhz ...
70MHz? How much of the world has a 4 meter (metre?) allocation?
Wonder if 'somebody' is already looking at satellite operating
features...
W2CVZ was asking about satellite ops when the K3 was first announced
and the answers ended up in the faqs. Looks like we're
I'm just getting back onto Ham radio after 50 years.
KF7CNJ? I'll assume that was not your orignal call. hiI was
originally licensed in the early '70s but dropped out in the '90s. It
took my son (W2CVZ) to get me back into the hobby.
If I get the K3/100 Kit, what is needed to put the kit
I find I have no problems working with screws in a horizontal axis. A
good (Wiha or equiv.) screwdriver will hold a screw with the shaft of
the screwdriver horizontal. For example to put the top cover on the K3
you could put the K3 on its side (side feet down on the counter,
handle up), put a
Has anyone seen the K2 act like this before?
Yes. In my case D16 and D17 of the KPA100 had failed. These are the
diodes in the swr/power monitor. When the K2 controller doesn't get a
power reading it just keeps on trying. Eventually you reach the
current limit.
On a slightly different topic,
Questions to think about:
Will you pickup the 12V before or after the rig's current monitoring
resistor R115)?
Before or after the power switch?
Will the power used cause F1 to trip?
Mark
On Wed, Jul 8, 2009 at 9:05 AM, dwbw...@fastmail.fm wrote:
Hey Gang,
I don't believe I will ever use an
better? Collins? Maybe he has the (Inrad) 8pole filters, and thinks they
are better.
If anyone has put Collins filters in the K3 they haven't made much
noise about it on
the mailing list. Wonder what the center freq of the filter was? I thought
most old Collins stuff used 455Kcs as the IF
How about the official _free_ one?
Check out elecraft.com. Look for the manual for the K2 and manuals for every
option your K2 has installed.
Mark AD5SS
On Sat, Jul 18, 2009 at 8:50 PM, bicyclepeddl...@netzero.com
bicyclepeddl...@netzero.com wrote:
Hi,
I recently purchased a prebuilt
Amplifiers are not such that 100 = 500 so 10 = 50. Solid state at least,
look at the charts for the 2 meter amps for instance) Doesn't work that
way.
_Linear_ amplifiers do hold true to the 100in=500out, so 10in=50out
statement.
If they are not linear amps, don't use them for anything other
please unsubscribe me.
The best way to accomplish that is to do it yourself.
Look at the bottom any email from the reflector. It has the links
necessary to manage it yourself. The first link
http://mailman.qth.net/mailman/listinfo/elecraft includes the option
to unsubscribe.
Mark AD5SS
On
Evidently emails to Wayne and Lyle get forwarded
automatically to the reflector.
??
Seems very unlikely. Are you sure your email tool isn't doing a 'reply
to all' instead of a 'reply to sender' ??
In gMail a 'reply' just goes to the person who posted the message. A
'reply to all' (which I've
As the subject of this posting suggests I'm quite a young builder; aged 20.
Congratulations! But I don't think you're the youngest to build an
Elecraft radio. Last year we were hearing on this reflector about a K2
school project which I think was a high-school aged group. Someone on
this list
I think I saw something two years ago at HamComm that would fit your
description.
It was being demo'd by a guy name Eric. grin
Mark AD5SS
On Fri, Oct 3, 2008 at 6:03 AM, Phil Debbie Salas [EMAIL PROTECTED] wrote:
I'd like a 400-600 SS amplifier, full QSK, covering 1.8-54 MHz. Auto-band
The D/A converter is listed as obsolete and no longer available.
From what I see on the TI site, the part you mentioned is listed as
'not recommended for new designs'. While there is no factory stock at
the moment they are expecting 10K on Dec 15th, so it is still in
production, and distributors
it should be this one for the DSP
http://focus.ti.com/docs/prod/folders/print/tms320vc33.html
That page _DOES_NOT_ say the chip is 'obsolete', it says 'Product is
Not Recommended for New Design'. Go ahead and do a text search on the
page, the word obsolete is not on the page. If you read to
Same thing. You're obviously not familiar with semiconductor marketing, and
how they spin things.
No it is not. It can also mean that they have a newer model that is
more cost effective, easier to build, faster, etc ...Eventually any
chip will be obsolete, but this only means what it says,
Why not reformat that email and send it to the Editor of QST?
Mark AD5SS
On Tue, Nov 25, 2008 at 8:46 PM, Dr. James C. Garland
[EMAIL PROTECTED] wrote:
This really IS a minor quibble, but the QST review noted that some hams
might prefer the larger and more widely spaced buttons and knobs on
Maybe Elecraft should offer rosin-scented candles or aerosol cans as an
option -- sort of a Ham's version of new car smell.
Or, you could build a clock for the shack! http://www.transistorclock.com
over 1200 parts to solder -- lots of rosin smoke
Mark
It does not seem right to ship radios without most of the features
they were supposed to have, no other manufacturer could get away with that,
or do I have it all wrong and the things listed above work great on all the
new K3's?
Yep, you have it all wrong. Elecraft can ship K3s with a promise
In my opinion ... the K3 technical stuff could stay here. All the
moaning and groaning about shipment dates and how Wayne and Eric
should run their company could move to another list.
Mark
On Dec 4, 2007 12:53 PM, B. Scott Andersen [EMAIL PROTECTED] wrote:
I am wondering if it might be
FWIW...
not worth very much ... the author writes authoritatively but doesn't
even sign his work or document the source of the delivery estimates.
Mark
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All you need to do is look at history tab
Thank you for making the history visible.
Where's -your- work, Mark?
My work? I have no work related to spreading rumors or guessing what
Elecraft will do in the future.
Since I'd like this reflector to be mainly devoted to technical issues
... this is
All anybody is asking for is a useful and believable shipping
schedule/commitment.
Fine ... BUT THIS EMAIL REFLECTOR IS NOT THE PLACE TO ASK!!!
None of us on the reflector can help -- you must contact Elecraft.
I checked on my order about 6 weeks ago, and I probably will ask again
in mid
It appears the firmware now does AM. From the latest firmware release notes:
Current K3 Firmware Revisions
Last Release: Dec 14, 2007
MCU: V 1.49DSP: V 1.46
*
Noise Reduction significantly improved. Also, NR can be used
with narrow filters in CW mode.
*
You should receive an email acknowledging your order. (At least I
received one for my order.)
The status page you have heard of is probably the now famous (or
infamous?) shipping status page:
http://www.elecraft.com/elecraft_shipping_status.htm
It will give you an idea how many months you have
We used a slashed zero on DEC (Digital Equipment Corp.) computers. My
experience with them was from 1966 to about 1975. At the time others
were using a rounded O(letter oh) and a squared 0(zero). I found the
slashed zero much easier to use.
Mark AD5SS
From the K3 FAQs (see http://www.elecraft.com/K3/K3FAQ.htm)
Q: I'm still not clear on the general-coverage (GC) receive option --
if it is indeed optional or available by default in a minimally
configured radio.
The basic radio, as well as the subreceiver, has a full array of
ham-band-only
I can't turn the volume all the way down my my K2/100 SN #2289.
You might check out this app note -- early K2's had some issues with
the AF gain pot.
http://www.elecraft.com/Apps/K2_AF_pot/K2_AF_gain_app_note.htm
Mark AD5SS
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When you do get to order your K3, it will have all those mods incorporated,
so you'll have a better rig than those who have one now.
I hope we're not trying spread some FUD.
In the past Elecraft has made sure that any improvements are available
to all. Every K2 ever built can be brought up
Pay a premium? Nope -- pretty soon I can a new one at list price
configured the way _I_ want it configured.
Now if someone wants to sell below list ...
Mark AD5SS
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... The flux, Quik Chip, etc are nice but not really necessary
I find the flux is very important -- makes it much easier to solder
with fewer solder bridges.
Mark AD5SS
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You must be a
Speaking of secret hardware, how about secret firmware... there must
be an easter egg somewhere in all that K3 code, right?
Yep, just like the ones in the K2, K1 and KX1.
... oh wait ... ahhh ... you mean there aren't any known easter eggs
in all that code?
at this time. For your best shot at the info you require I suggest
you join the Elecraft K3 group here on Yahoo.
Or you could join the official Elecraft mailing list -- Elecraft
List elecraft@mailman.qth.net. Start at
http://www.elecraft.com/eist.html. I would think that _ALL_ the
current K3
Discovered the value of transparent Scotch
tape.
ah yes. The day we switch to optical readers was a day of
celebration! The old mechanical readers were slow and noisy.
Mark AD5SS
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You must
Michael,
What? You can't look it up yourself? You can't ask me?
Check the Elecraft website for the manuals. The command set is
documented in the KIO2 Programmer's Reference manual, the comm
parameters are in the KIO2 manual.
KIO2 manual (with baud rate, etc)
Nope. Not enough room. The K2/100 is quite full. BTW, a K2/100
doesn't need the KIO2 option, it is built into the KPA100.
Mark AD5SS
On 6/28/07, Scott McDowell [EMAIL PROTECTED] wrote:
Hello
Can the KAT100 be installed inside the K2/100 when I have the following
options already installed?
Come on! Why is the ridiculous Molex
connector considered a standard? Not because it's any better than the
APP but because it's what the manufacturers could get for pennies per
connector.
I designed a CNC control in the middle 70's and we used Molex
connectors for DC power connections to the
... I've been obsessed lately considering
ways to get the K3 mounted into an Altoids tin. Not
going too well so far...
That sounds like a difficult task! Most folks here are still waiting
to get a K3 and you're already trying to make it smaller.
Wasn't last weeks discussion about making the
Ah . my first keyer came from Bell Labs! Funny round things in
it. Had 3 leads and a tab on the funny case. Used a mercury wetted relay in
a great big tube like a shot gun shell
I built an Accukeyer out of TTL chips around 1974. You guys are making
me feel like a youngster...
P.S. As a former GM of HP's division responsible for DMMs, I should
suggest you spend $8k for a 3458A. :-)
maybe ... but I can drop a Fluke, pick it back up and keep using it. What
happens when the 3458A gets dropped?
BTW -- who uses 8 1/2 digits of precision? Who calibrates it?
Mark AD5SS
Copied from the 9/18 K3 update, written by Eric:
Wayne and I discussed the schedule and our open issues today. While
we both felt that we may start shipping in two weeks, we agreed we
should add a week to that and conservatively set the official K3 first
ship date for Monday Oct 8th.
...so the
The fanatic R/C'ers say Andersons have too much resistance.
Yeah but, what currents are they running? W2CVZ's RC car has a motor
controller that claims to handle 350A pulses. At that kind of current
the resistive losses get real high, real fast. (Those high currents
are another reason they like
As far as I remember, the K2 serial cable was just a standard 3 wire
cable, ... What is the point that I am missing?
If your K2 cable had only three wires, signal ground, send data and
receive data, there is no _major_ difference. Just the 'normal' pin
2/3 confusion. Some K2 cables include the
Big difference. Send Data and Receive Data on the K3 are opposite
that of the K2.
Big difference? I said 'no _major_ difference'. Crossing pins 23
will not destroy anything. Since the beginning of time ... well ... at
least since the beginning of DTE and DCE RS-232 devices, pins 23 have
been
http://www.wa5znu.org/log/2005/03/kx1-bag.html -- this is a better URL
-- it works!
Mark AD5SS
On 8/31/05, Leigh L Klotz, Jr. [EMAIL PROTECTED] wrote:
Mike,
You would be surprised what you can fit in a waist pack.
See http://wa5z.u.org/log/2005/03/kx1-bag.html for pix of what I use.
I
On 9/1/05, Paul T. Rubin [EMAIL PROTECTED] wrote:
You are correct that the Red Cross does not have Amateur Radio operators at
its shelters at this time. We are in the Life and Safety phase of this
I understand why you're not involved in HW traffic at this time.
However, I've never seen the
A couple of points:
1 -- While the feedline might have a 1.5:1 swr, a tuner at the rig can
allow the rig to see it as 1.0:1.
2 -- If the feedpoint of the antenna has an impedance close to 75
ohms, RG-6 would be the _correct_ feedline to use. (Correct meaning
best match to the antenna and lowest
This type of operation was discussed when the K3 was originally
announced. It seems to take more than just firmware -- questions were
raised about shielding ...
I see it is in the FAQ under Transverter Topics along with the
original question, 'can the TX freq be changed while transmitting
I don't know the K3 yet, but ...
If you have LOTS of ALC, doesn't that indicate that something has
limited the transmitter? Something has caused it to cut back?
Mark
On Nov 22, 2007 3:35 PM, Doug Person [EMAIL PROTECTED] wrote:
Again, maybe I missed something - but this seems pretty
Look for a long (10+ inches?) square plastic tube -- inside you will
find the relays.
Mark AD5SS
On 1/13/07, Dennis Vavra [EMAIL PROTECTED] wrote:
On page 35, left column, step 4, it requires install of k1-k17. I cannot locate
these parts in the inventory Appendis A. I do not know what they
The KPA100 has a ground lug.
Mark AD5SS
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Then there is always liquid nitrogen. g
Better check the temp specs on the finals -- might be TOO cold.
Mark
On 1/23/07, Gil Stacy [EMAIL PROTECTED] wrote:
Amateur astronomers use Peltier devices to cool the CCD on their
astrocameras. The Peltier unit cools and circulating water/alcohol
Well ... the K2 has a lot of parts, but it is built one part at a time.
Have you downloaded the K2 manual from the Elecraft website? Reading
the manual should give you a good feel for the difficulty in of
building the unit, and the troubleshooting information available.
Of course if you do have
Tune Button – How about making it so that hitting Tune
automatically reduces transmitter output to just a few
watts for the tune operation, then returns the K2 back
to it's previously set output when tuning is complete?
Running an Elecraft tuner? The K2/100 drops down to 20 watts when
running
Maybe the lesson here is: If you're using the ngen, stock a few
spares of the MMIC ??
Mark
On 2/28/07, Don Wilhelm [EMAIL PROTECTED] wrote:
... I did the same thing only last week (for the 4th or 5th
time). Fortunately, I have replacements on hand so I was able to recover in
a few minutes
I only had one minor issue and one issue that I will need to resolve. The minor
issue is that the stand is too high to use if you are constantly tuning the
bands. A center position would be helpful.
From the Elecraft website:
ETS15 Tilt Stand 1.5 $14.00
While this tilt stand won't do much
I am still in the coil world, where a TURN is a turn
In the toroid world a wire going straight though a toroid counts as one 'turn'.
Mark
On 3/23/07, Brett gazdzinski [EMAIL PROTECTED] wrote:
I took one turn off all of them because
I counted the first turn as a turn, not 2.
So I had 1
OK ... what is preventing you from installing the choke? My K2/100
has it and does not have the oscillation problem.
Mark AD5SS
K2/100 5340
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Sounds like you are missing one channel of the encoder -- first step
is to check the soldering. Looks like the two encoder channels ENC A
and ENC B go to the RF board via pins and 13 of J1. Check the
soldering on those pins on the RF board and the front panel board,
also pins 9 and 16 the MCU
auxBus peripherals. It will support the transverters and KRC2, but
Amazing ... you answered my transverter question before I was able to
type it in.
Lets talk satellite work -- can the xmit freq be changed while
transmitting (doppler?) can the sub receiver be receiving at the same
time as the
...hmmm... If it can 'wake' on serial activity it wasn't really off.
It is probably too early to know but are we talking micro-amps or 100s
of mills while in 'sleep'?
Mark
On 4/28/07, Lyle Johnson [EMAIL PROTECTED] wrote:
Can the rig be turned on/off with a software command? That would make
We won't be splitting up the reflector.
Thank you
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And of course the ability to send SSTV with your paddles just like RTTY and
PSK31. :-)
...my question to Michael was 'how would the picture be displayed?' --
never thought about asking how it would be generated.
Mark AD5SS
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IMO, the bail is the most difficult piece of the assembly.
I used longer screws while assembling the thing and then changed them
out, carefully!, one at a time to screws of the correct length.
There were some great discussions on the forum a few years ago about
the tilt bail. Lots of different
I wasn't really complaining. I just am trying to figure out what is considered
off-topic and what is not. It appears to be a perplexing puzzle on many email
reflectors. I have determined that a topic will be quashed as off-topic IF:
...
No need to be so cynical.
My guess (and it is just a
You should at the UAE to the list.
I showed up in Dubai at about 1AM with an HT in my carryone. BIG MISTAKE!
After a lengthy time with the customs and the local police, they held
the HT and let me enter.
I managed to get the HT back as I left -- the customs officer watched
me place it in my
Am I the only one who finds this entire topic cheeky and tiresome?
Not sure about your definition of 'cheeky' -- but it is tiresome. If
someone is that concerned about future software support, try getting a
radio with out any software.
Maybe they should just buy a Ten-Tec, or an I/Y/K. Those
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