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on: Today at 05:07:04 PM
Started by VK5CQ - Last post by VK5CQ
We Hams like to help other Hams... and this warm tradition has lead to many Hints & Tips like articles & shorts, in QST & Club newsletters alike.
Entire schematics, with detailed parts-lists, are distributed, as part of articles, in either type of publication... but Software is often offered sans (without) source-code.
Why should this be so?
Although some (OK, even a great deal of) Open Source software is available for Ham projects, some is held, as if "Company Confitential" even when there might be those able & interested in reading & possibly extending or customizing a project's software.
Why don't we let clever folks extend / customize the software modules of a larger project, just as we do its hardware moduled?
If not NOW, when? :-/
on: Today at 05:04:43 PM
Started by WA4ZYN - Last post by WA4ZYN
I studied the FT-5100 manual as suggested, and figured out how to put the sub-band on the same band as the main band. I have full power output on both VHF and UHF. Using your suggestion then I found that yes, I have receive on the sub-band when set to the VHF repeater output frequency. I guess that means my receive is "deaf", not "dead." I will keep on keepin on with this project! Thanks for that very useful suggestion.
PS: I will try to "jam a signal down its throat" and will see how that affects it.
I just had my 5200 on my bench. The 5100 is much the same.
1. Leave the squelch open and key up the local repeater.
2. Does the transmitter make rated power?
3. I suspect you have a popped RF amp or pin diode. There are several pin diodes in the path, check them all.
4. Switch the UHF side to receive VHF, does it work?
Hope you get it working.
on: Today at 04:58:06 PM
Started by N3DT - Last post by W1JKA
QUESTION?? Can I download Linux Mint onto the disc via WiFi from Windows XP or do I have use my direct internet wire connection? Yup, you got it, when it comes to computers I'm one of those plug, play, point and enter guys. Thanks
on: Today at 04:55:12 PM
Started by KB1TKQ - Last post by AC5UP
Even if the firmware was perma-hosed, shouldn't there be some response to the power switch, even if it's only an error code?
Yeah, I know there are situations where the CPU has to make it through POST before there can be any sign of life, but I don't see a TS-570 as being so fully digital that no clock = no play, no way, Jose.
More likely something was overlooked during the reassembly portion of the battery swap. (?)
BTW: Has someone used their Cen-Tech DVM to confirm the new battery is in fact at the 3.10+ VDC level and this voltage can be found on the CPU board in the right place(s)? Not asking if the battery is good, asking if the PC board has what it needs where it needs it 'cuz that's what matters.
on: Today at 04:52:37 PM
Started by KJ6YJS - Last post by VK5CQ
Luzerne County (Pa.)'s Tropical Storm AGNES (1972)
By some luck, the County had funded a Ham (who -
by day - sold Ham & other electronic gear) to give a
Technician Class license course, with exam FREE to
anyone interested. (Starting with 40 places, but this
was doubled, after twice that many turned up for it!)
Years earlier, its Civil Defense had placed Amateur
Gear in an underground equipment & plant room, at
a semi-rural High School: HF (SSB AM CW) + 6m AM
with an Inverted V or 2 supporting a mast-mounted
6m Vertical on the roof.
These 2 events combined to increased the readiness
of the County's RACES operators.
A Flood soon followed Agnes (1972) into 2 cities near
the County Courthouse, in who's sub-basement Civil
Defense's offices & RACES station was located.
During the Flood, RACES-trained Hams were dis-
patched to the High School's RACES station, and a
nearby private Catholic college.
Flooded folks were sheltered both at the High School
(in a vast array of army cots, set up in the gym) &
the College (presumably, on similar sports flooring,
& possibly in any empty dorm rooms).
To answer your question, RACES operators were
needed because Flood waters wiped out the cities'
telephone exchange, reportedly just after it had
been upgraded in some way.
So, Red Cross (who might have been set up on the
College's beautiful campus) & others service pro-
viders used RACES' stations to send & receive
lists of supplies needed by their shelter folks.
Since the College & High School were outside
the flood-plane, both had electricity, but the
service providers in or nearer to flooded areas
(reportedly) didn't always have power; so, they
relied on portable radios to get the orders in.
Early-on there needed army cots, blankets, etc.
later, it was canned water & food stocks, in var-
ious forms (initially, ready to eat; later, chang-
ing to larger quantities of ingredients, ie, when
cooking facilities near them were able to cook.)
(Folks staying at the High School enjoyed the
benefit of the School's -huge- industrial kitchen,
used to prepare school lunches for several of
the District's primary schools, as well as itself)
(back to radio ops)
Of course, at random times, someone would
be directed to one of the RACES stations, &
come in to ask if they had comms with who-
ever they needed to speak with, at one of
the shelters or a coordination center.
While flood victims were well looked after,
in the temporary shelters, ie, until trailer-
pad could be built, along with needed infra-
structure build (ie, water, sewage & power),
& some "HUD trailers could be set up on the
'pads, at least one of the flooded cities seems
- by all reports - to have faded a bit.
Ethics, in the County, may also have changed,
for the worse, in some sectors:
Elected Judge(s) took steps to close County's
public youth prison(s), allowing new, private-
ly -owned & -run youth-prisons to be build.
Two (2) judges were later found to have been
unduly sentencing any youth, who attended
court -without- lawyers (since their offense
were so minor as to reasonably expect - at
worst - a fine & - if sentenced at all - to re-
ceive only -suspended- sentences, rather
than a stay at the new youth prison) to sur-
prisingly LONG periods in (privately-run)
youth-prison (who were paying kickbacks
to the judges, for each cell filled due to the
judges' harsh sentencing of a young person).
You'd never expect Judge Judy to play such
depraved games with young people. :-)
on: Today at 04:50:20 PM
Started by KH2BR - Last post by KA5QMA
I have surprised my self yesterday. I was head copying cw at 35wpm and at the same time reading a web page.
It was like natural. Both content was absorbed and understood. I haven't tried sending and reading at the same time, I don't think that will work.
I know Don, w6jl and he can send cw with one hand and work on his inventions with the other hand at the same time.
He told me that he knows some guys that can send cw and have a conversation with someone at the same time, but he cannot do that. One day I was talking to him and at the same time he was making lunch. He uses wireless headset and paddles.
What about you guys? what kind of incredible things can you do at the same time sending cw?
Thats very good!
I can understand someone speaking to me while sending or receiving CW, but I can't speak to them in any coherent fashion. I just nod
Way back when, an Elmer told me about USN operators who could work 50 wpm and carry on a conversation at the same time.
on: Today at 04:49:55 PM
Started by AF3Y - Last post by KK7JS
I did finally hear them this morning on 20m SSB, although it was mostly an ESP level copy...
mumble mumble "59"
"QSL" mumble mumble
Did hear them clearly work one station: KE4UW. Tried calling them a couple of times at that point with no luck. The ops are doing a good job on this DXpedition IMHO, it's just my antenna that isn't up to snuff.
on: Today at 04:45:50 PM
Started by KC2NYU - Last post by N2DTS
I received my kit today, it took me about 10 minutes to build it, there is not much to it, the bnc, a jack, some inter board headers.
I got it working with hdsdr easy, but it seems to have a lot of birdies or some signals that are not really there.
So far, from what I can tell, the peaberry V2 is MUCH better, with a much wider dynamic range.
Very nice case, and its a very small unit.
on: Today at 04:35:16 PM
Started by KK4PNS - Last post by VA7CPC
A little "kink" in all this:
The FT-817 has a switch near the headphone jack -- "SPeaker" or "PHones".
For _unpowered_ loudspeakers (without built-in amplifier), you want that switch in the "SP" position.
For _powered_ loudspeakers (e.g. iPhone add-ons), you want it in the "PH" position.
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