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Circuit Board Construction Question Mar 23rd 2012, 13:10 4 2,562 on 15/9/13
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Switching Open Wire Feedline Bewtween a Transmitter and Receiver? Aug 8th 2011, 13:34 1 2,863 on 8/8/11

Latest Posts

Topic Author Posted On
Past magazine article. W8AVD 1 week, 2 days ago
Your request has been submitted to a Lab staff member who will look to see if the article you have requested is in our Technical Library.

Bob Allison
Too many... N6VX 1 week, 2 days ago
The ARRL sponsors only two contests that have an impact on the 160, 80, 40, 20, 15 and 10 meter CW parts of the band; Sweeps (last weekend) and the International DX CW Contest. There are also the 160 meter contest, which is exclusively CW and the 10 meter contest, which is all modes. While the contesters seemingly take over these bands, there are always 30, 17 and 12 meter CW, which are not used during ARRL contests.

Contests are popular because one can make many contacts in a short period of time. Many Radio Amateurs do not have the time to get on the air on a regular basis, due to many factors of life, but try to block out at least one or two weekends out of the year.

Here's the ARRL contest schedule for this year; you can see how many contests we sponsor that impact HF CW:

Bob Allison
ARRL Laboratory
ARRL Webmail Upgrade SCam AA1PR on 25/9/15
Thanks for sharing this information. It's too bad there are people in the world that attempt to steal from us, but that's the electronic world we live in today.

The ARRL IT Staff is working on this issue at this time, 12 Noon, 9/25. There will also be a news story on our web site about it, explaining it's a scam.

Bob Allison
ARRL Laboratory
AM Carrier Level on Kenwood TS-2000 W2NJU on 18/8/15
I assume "50" means 50 Watts. If that is the case, 50 Watts is too high. One would need a transmitter capable of 200 Watts PEP for proper modulation. PEP power is four times the carrier power, so a carrier setting of "25" would be the proper level for AM operation.

Bob Allison
ARRL Laboratory
Centennial QSO Party site broken on later Firefox versions N0NB on 9/7/15
Try FF, version 23.

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