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eHam Forums / VHF / UHF / RE: Nice little opening on 6m this afternoon
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on: May 15, 2013, 01:48:43 PM
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Hey All,
For me 6 M has been kind of tough (FUN, but tough) . Last summer or two were generally "dry" here. I have to go back maybe 3 years for decent QSO's (Caribbean, far W or far S U.S.) or any Transatlantic copy (copy only).
So I was really happy to work KJ4UGO in Alabama on 5/9/13.If this is my ONLY contact all Summer , at least I had fun and was able to put SOMETHING in the log !
Admittedly MOST of the problem is on MY end having a very difficult QTH . I am kind of limited to an inverted Vee for 6 M on 120 ' (!) of RG-8x ( really can't use big coax here at the apt.).
My IC-551 has one of the tandem finals open, so it will only do around 40 W. Additionally, I often back that down even lower (maybe to 20 or 25 W PEP ) due to RFI concerns here. But FWIW, the receiver seems very hot. I HEAR stuff,"at times", but usually it's far away , weak and I can't get a response (go figure !).
Despite most of this being my "fault", the spotting maps also don't seem to have favored the NE US too much as well. Most paths are "point to point" in OTHER parts of the country. Additionally it takes a STRONG opening(or big station) for me to get in , even if it IS aligned toward New England.
I just bought a Saturn Halo. What do you guys think about using IT vs my half wave diagonally downward sloping vee shaped dipole ?
For those of you that have "easier" 6 M capabilities and/ or QTH's, enjoy this SHORT season and make a dx contact for me (Hi).
de N1NQC FN 42 KI (MA)
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eHam Forums / QRP / NVIS QRP
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on: May 15, 2013, 01:08:46 PM
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Hey All,
I just got my General a few weeks ago . I am now taking advantage of my voice privileges within 40 M on an "involuntary" NVIS (LOW) 40 M horizontal Vee shaped dipole 15' over a flat apt. roof .I also need to run QRP (4 W @ ant ) from the IC 735 due to building fire alarm issues.
It has been a LOT of fun, punching through R-3 blackouts at up to S-9 + 5 or +10 anywhere from 150 to 250 Mi + away. I've had some GREAT long and fairly stable QSO's ( I'm a rag chewer anyways, and NOT the "you're 5/9/73's " type- if I can avoid it).
I have done ULTRA QRP work( as low as single milliwatts) on V/UHF SSB/FM and loved it.
On 10 M I've run 5 watts (at times) , but with the "lower" angle sky wave of 28 Mhz at , say 1000 mi, things often tend to be much more of a QSB "roller coaster". The STABILITY of CLOSE IN 40 M NVIS has impressed the heck out of me, even during daylight.
Now I gotta brush up my Morse some and get back into some CW QRP contacts.
de N1NQC
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eHam Forums / Misc / RE: Passed General , Now N1NQC/AG
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on: April 18, 2013, 08:17:14 PM
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Thanks Guys.
I have been working Ten meters for all of that 20 years and also CW on 40 more recently.So not a stranger to HF, just lower HF.I did take the Extra at the VE session ,but missed it by a good amount.
Now it's time to "take a break" and build CW speed and work on LOTS of backed up bench projects.
K
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eHam Forums / Misc / Passed General , Now N1NQC/AG
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on: April 18, 2013, 05:21:17 AM
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Hey All,
After twenty years as a Tech (probably a world record !) I took my General at MIT last night and passed it the first time around.
Now back on the J-38 to build up my speed.
K
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eHam Forums / HomeBrew / RE: Build a very simple CW receiver using common parts
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on: December 30, 2012, 11:49:51 PM
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Hi,
I built the WN6Q " Almost A Crystal Set MPF 102 for the B'cast band and it worked phenomenal ! I used a ceramic insulated var cap w/ ball drive and very light coupling on the antenna.Got at least a beat note on around 98% of ALL AM radio channels.
HF versions have been built. A SUPER simple radio and if coupled correctly onto a good long wire antenna , should work well.
K
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eHam Forums / SWL (Shortwave Listening) / RE: which receiver do you use ?
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on: December 24, 2012, 03:17:14 AM
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Hey All,
IC R-71a, Halli S-120 A, DX 440, Home brew ( SW crystal sets,1 active device, 2 active device, etc). Ant: 40 M horiz Vee dipole,75 ft long wire.
de K
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eHam Forums / Misc / RE: "Broadcasting's Forgotten Father" and the "Little Hams Program" of 1912
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on: November 28, 2012, 12:41:49 PM
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Hey All,
This "discussion" has gone on for around 100 years .I feel it really depends on what your definition of "broadcasting" is.
Fessenden was not a regular voice/music "sender". Christmas Eve 1906 /New Years Eve 1907 was all I know of .
Herrold may have done it on a "schedule", but under what type of license or authority and for how long ? (anybody ?)It has been proposed that Herold's efforts eventually "became" a full time licensed b'cast station in CA (can't recall which one w/o research. It also seems a stretch that these truly and fully continued into the 1920's and became a licensed b'caster. But I defer to the Herrold folks for more info
Enrico Caruso had one of HIS performances transmitted ( forget when or by who- but it was VERY early on).
Opera singer Nellie Melba had one of HER performances sent out by the Marconi Co. , again very early on.
And let us not forget all the amateurs,including Frank Conrad (later of KDKA fame) who loved to play music.
The point here is that 99% (if not 100%) of the "broadcasting" that went on pre KDKA/WBZ was sporadic, relatively short lived and certainly NOT licensed as broadcasts.
If you REALLY examine "true " broadcasting KDKA was first (sort of). KDKA initially got a MARITIME SHORE station license(only by default as there was NO broadcast class at the time.But the govt knew of their intentions. They eventually got a broadcast license, but AFTER WBZ).
From a PRACTICAL standpoint,KDKA went on the air, started broadcasting and as done so for 90 plus years.Realistically by most criteria and in the opinion of nearly ALL broadcast historians , KDKA was first.Period.
WBZ received the world's FIRST license specifically issued for BROADCASTING. So by the "letter of the law" 'BZ is TECHNICALLY the world's first BROADCASTING station. But this is highly literal and Westinghouse NEVER promoted this fact, lest they lose 11 months of "advantage" to KDKA.
de K
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eHam Forums / QRP / RE: Let's get something straight about QRP!
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on: September 15, 2012, 01:30:45 PM
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Hey All,
I have only had a BIT of experience w/ QRP on HF CW around 7040 Kc. But I have had TONS of QSO's on V/UHF at SUPER low power levels (as low as single digit mW levels on 2 M ssb and low double digit mW's on FM) and had a BLAST doing it.
But since most of the QRP action is on HF, using the established BAND PLANS is critical ! Please give QRP'er's some space to work (ie around 7040, et al). There is plenty of room for QRO, digital, etc. The same goes for AM, they only need a BIT of spectrum, but it must be CLEAR of other modes .
FWIW, my latest (maybe silly) QRP "experiment" is running an FT-60 at .5 W on UHF with a ludicrous 120 + ft of RG-8X, a diplexer and connectors/adapters inline to an SO-239 gnd plane ant (we all know what they are like re pattern- dismal).
I figure it's around 30 mW out. I am around 80% quieting into my buddy's REPEATER (yes , I know I said the "R" word) about 25 mi away.
I intend to limbo even LOWER by (hopefully) finding a small Yagi and slapping even MORE coax inline just to gobble up the gain and still get the same 80 % quieting. Ideally I'd like to get things down to the single mW range (albeit WITH the Yagi's gain) , which would be a first for me on UHF.Anybody know where I can buy long lengths of small cheap crumby coax ? (hi, hi)
The other thing I want to try is using a 50 ohm resistor as an antenna to see what IT will do.
QRP is FUN.The advantage I see to doing it on V/UHF is the lack of QRM from QRO stations.
K
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eHam Forums / Antennas and Towers and more / RE: New MFJ 1790 10 M Antenna
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on: April 18, 2012, 12:40:39 PM
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Thanks Guys.
I sort of smelled a problem here. It sort of reminds me of the old Three Stooges joke : Do you know what this antenna is for ? It's for SALE !
There is nothing "wrong" with dbi, it's just that dbd does not need the "correction factor" thrown in.
K
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eHam Forums / Antennas and Towers and more / New MFJ 1790 10 M Antenna
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on: April 18, 2012, 06:04:05 AM
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Hey All,
Anyone know anything about or have hopefully tried the new MFJ 1790 10 M antenna. There is near ZERO on their website, which makes me cautious.
Anyone know if this antenna always needs to be meter tuned when assembling for "field" ops ? Or does it just go together in a "flat" match ?
Any ideas of the 1: 1.5 to 1: 1 to 1: 1.5 bandwidth ?
What is the gain (if any) in dbd, NOT dbi.
Any info appreciated,
de N1NQC
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eHam Forums / HomeBrew / RE: Crystal Radio earphone best price
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on: November 29, 2011, 05:08:23 PM
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Hi,
Scott's Electronic Parts(angelfire/electronic2) also has 'em.I haven't check prices between the different sources though.
Indeed these puppies CAN be buggy at times, even from the factory. But a factory good earphone works GREAT. I'd buy at least 10% more just to be sure.
Sometimes a problematic earphone can be "restored" by shorting the phone terminals or if need be gently tapping the earphone body with a pencil.These earphones, even if factory good do not "age" too well and over the course of some years ( 2, 3 or 5?) they start to get more and more buggy. Eventually they all pretty much die off. But as a "demonstrator" they are fine.
Some crystal radio folks are using the piezo elements instead of crystal earphones. I have some elements in the shop but have yet to try them .
Crystal earphones DO need a "bleed resistor " as mentioned .
As mentioned the Schmarder radioboard site has more info.
FWIW I have built MANY crystal sets (some VERY high Q) and am quite active on the radio board (as "Krystallo).
de N1NQC
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eHam Forums / Misc / RE: freebanders
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on: November 15, 2011, 02:54:01 PM
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Hey All,
OK,here we go- free banders (again).
First of all I do not condone freeband activity within the 10 M band or QRM'ing an on air licensed service.
There are a lot of "listed" services along in the traditional free band range ("petroleum", ,etc) .Frankly, I have NEVER heard any of them in 40 + years of (admittedly) on and off listening.
While it does not make it RIGHT for a free bander to operate on, for example a ("supposed") "petroleum" frequency, there is a sort of real world "use it or lose" it mentality.If it's vacant, folks will use it.It is my SUPPOSITION (only) that a lot of these licenses are not being used much (or at all ) anymore.
The CW portion of 10 M is obviously NOT vacant though and any "smart" free bander would stay out of there. They have "free run" from around 26 Mhz (or lower) all the way through 28.0 Mhz ( including CB).
And while many of us may not want to admit it, many (if not MOST) of the "older" hams got started on IN BAND CB. And within that group there was a minority that "drifted" ("accidentally" of course ) into the free band.It's like those who took a few puffs of something "naughty" in way back college but don't do it now. Today many of them will NEVER admit in "polite" company that they ever did it .
Frankly I DO listen on the free band and find some (or many) of the operators as "well behaved " as some of the ham bands. But at other times it's childish or obscene. Some of them WOULD make good hams, but for WHATEVER reason ("lazy", anti- establishment, etc) they don't get licenses.
One of my main gripes is the self (or group) issued "call signs" ,silly stuff like "FT 2756 AB 56". Being a ham I like REAL call signs so I have at least an IDEA what country someone is in.Although fun to listen to as alternative to ham radio, free banders can get tedious after a while.I often just use them as "propagation indicators" to see what conditions are like in between 10 M and 12 M.
FWIW I did hear a nice QSO today between MI and S .UK- w/ Q codes, 5/9 reports etc.
To me the major issue is whether one is causing QRM , THEN we can discuss the unlicensed aspect of it.
Free banding is OBVIOUSLY NOT a big priority at the FCC ( OT- along with the HIGH powered Boston area AM b'cast band pirates that stay on the air for 14 yrs + -OR- the licensed AM b'cast stations that don't ID or won't adhere to power/pattern requirements, etc, etc ).
Oh well, blame Uncle Sam.
de N1NQC
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