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   Home   Help Search  
Pages: Prev 1 2 [3] 4 5 6 7 8 ... 10 Next
 on: Today at 06:23:29 PM 
Started by MM0IMC - Last post by WA4JQS
I always liked backup stations hihi... but my main amp is a Alpha 89 beta unit but it has a 2 min warm up so my back up amps are
 ts 950sdx  alpha 89 main rig

 ts 870s henry 2kd5

 ts 950 sdx  tl 922a

 ts 570s l4b and swan mark 6b

 ts 850sat  l4b

 tr4cw/rit l4b

 b line l4b

 c line l4b.
i know i have a thing for Drake gear.

 on: Today at 06:21:57 PM 
Started by K1ZH - Last post by N5DGK

What's the procedure for setting up the IC-9100 in cross band repeater mode?



 on: Today at 06:18:47 PM 
Started by K6LCS - Last post by K6LCS
I just received my emailed certificate from ARISS and the Polish team for
merely receiving and submitting SSTV images from the ISS earlier this month.

As always, a beautiful certificate - this one with a photograph of Salut 6.

SO ...  our ARISS US QSL manager will send you a QSL card for this project ... as well as the international team’s certificate!

ARISS QSL Card Requests:

International certificate requests;

As the ARRL reports, " ...[more than] 9,000 images relating to the 40th anniversary of the Interkosmos Project period of the Soviet space program had been posted for viewing. The SSTV images, stored on a computer in the ISS Russian segment, were transmitted by RS0ISS on 145.800 MHz with PD-120 SSTV protocol, using a Kenwood TM-D710E transceiver.

"Certificates are being distributed via e-mail to those who posted reception reports and images. The emailed certificate commemorates the 20th anniversary (in 2016) of the Amateur Radio on the International Space Station (ARISS) program.

"To be eligible for the ARISS SSTV Award, participants should have received and decoded at least one picture during the activity period. Image quality needs to be good enough to identify the picture. Partial images are acceptable.

"To qualify, upload your decoded images and complete the applicationby May 15. Details and a list of ARISS SSTV award-winning stations are available on the application page."


 on: Today at 06:16:42 PM 
Started by WB0CJB - Last post by WO7R
Generally speaking, if the DX does not mention an amount, I send 2 USD.  It works out pretty well.

Sometimes, I look up specific countries (occasionally, even manage to slog it out in the native language, though there usually is an English page because English is actually "everyone's second language" (but don't say that aloud in Europe)).

Look for the rate for an International 20g letter.  In most languages, "International" (in some spelling) seems to exist and "letter" or "carte" or some such is there.  20g is enough to get it back to the US, roughly like a one ounce letter in the US.

 on: Today at 06:11:05 PM 
Started by XZ2A - Last post by K4RVN
You might want to consider a half square antenna for simplicity in feeding. Direct feed 50 ohm coax at one end next to your room  for a short run. No radials needed and a very good DX low angle wire antenna. You could also put up a second one with no feed to make a half square array. The vertical components can be very close to the ground but high enough to prevent someone walking into the wires.


 on: Today at 06:06:05 PM 
Started by K0UA - Last post by KC0W
Molly ran the business.

 Molly provided unquestionably the worst experience I've ever had regarding customer service. It was a total joke going around & around with her regarding Alphas well known PIN diode debacle on my Alpha 99. She swore up & down that "lightning" damaged the diodes even though it happened in January in Minnesota. There are dozens of well documented cases of Alpha's PIN diode problem...................As far as I know there are no documented cases of lightning in Minnesota in January.

                                                                          Tom KC0W             

 on: Today at 06:01:28 PM 
Started by WB0CJB - Last post by N5INP
Check the "Page managed by ZD7CTO"

I QSL100%. 2 US Dollars (or Euro notes/ Sterling BUT NOT Euro coins) and a self addressed envelope will be greatly appreciated to defray mailing costs.

 on: Today at 05:59:54 PM 
Started by KD8ZIF - Last post by W6EM
Granted, you'll need an isolation transformer if you’re working on very, very old consumer broadcast AM receivers.  In those situations, the incoming 120V was rectified and filaments connected in series.  The chassis was supposed to be connected to the AC line neutral, making it potentially ‘hot’ if non-polarized plugs would allow switching hot leg for neutral on the incoming AC.  Back in those days, no polarized plugs, unlike today, so chances are.......flipped.

Variacs are usually (and properly) rated in amperes, not watts.  Why?  To avoid confusion and possible damage to the variac winding.  Wattage can only properly represent incoming power rating, not what is connected.  It otherwise generates a false sense of being able to supply that much load, irrespective of the dial/brush position.  If that were the case, when set at the midpoint, say 60V, the implication would be that twice the full load current would be just fine…..not!  While the lower half of the autotransformer winding wouldn’t be overloaded, since input and output currents in the winding oppose each other, the leads from wiper to output and the wiper could be, since potentially carrying twice what the full load current rating of the winding wire would be.  The entire winding is, of course, wound using one wire size.

As for uses for variacs, we amateurs live in a ‘regulated’ DC world for our solid state gear.  Ever wonder just how low your regulated supply incoming AC could go before it loses regulation?  A variac would tell you.  Full-load loss tests on transformers is another use, as described above to drive out moisture or check dependability.  Any situation where you might want an adjustable AC low voltage source can be created with a variac and small transformers.  Like finding the dropout voltage of small relays.

I have a large, 20A, 240V beast, and a smaller 5A 120V variac.  The large one I use at 120V, but can reconnect it for 240 if I need it.  Great bench tools.



 on: Today at 05:56:51 PM 
Started by WB3HUS - Last post by WB3HUS
ok just trying to make things easer


 on: Today at 05:50:59 PM 
Started by WB0CJB - Last post by WB0CJB
I worked ZD7BG. He only QSLs direct but he does not state if he needs US dollars and how much. I checked his QRZ page.

If a DX station does not mention how much money they need to send a card back now much do you send? I know Germany is around 2 USD but other countries there isn't a set amount.

Is there a good website that lists postage costs for a QSL back to the US?

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