Archive for the 'Contesting' Category

ARRL RTTY Roundup Propagation predictions

Friday, January 6th, 2006

I created propagation predictions for the ARRL RTTY Roundup that is starting tomorrow. Predictions were created with HamCap, SSN 23, K3 and assuming 100W and a dipole in 55ft. The QTH is 37N, 122W. Both short and long term predictions are available here.

ARRL 10m contest predictions

Thursday, December 8th, 2005

ARRL 10m contest is this weekend. I have created some short and long path propagation predictions from Northern California for the weekend. I used HamCap & SSN 30 for these simulations (that’s what IonoProbe just gave me as effective SSN).

Briefly, the operating plan could be this:

  • 00-02Z: VK/ZL/Pacific, maybe JA until 01Z
  • 0200Z: NCCC rally on CW (28040)?
  • 0230Z: NCCC rally on SSB (28400)?
  • 0300Z-15Z: go to bed, or do something else
  • 15Z: start working South Americans
  • 16Z: check for VU/9Y/HS/9M for long path opening, if not… work South Americans. Skew path to Europe by pointing antennas to Africa/South Atlantic?
  • 17Z: check for VU & Middle East long path, if not… work South Americans & ZS. Skew path to Europe by pointing antennas to Africa/South Atlantic?
  • 18-19Z: check for long path for Northern Africa, Southern Europe (EA/I), and keep working for South Americans (by now they must all be QSO B4?) & ZS. Skew path to Europe by pointing antennas to Africa/South Atlantic?
  • 20-21Z: check for long path for Northern Africa & Southern Europe, short path to South America, ZL/VK & ZS. Skew path to Europe by pointing antennas to Africa/South Atlantic?
  • 21-00Z: short path to South America, ZL & VK, maybe JA after 23Z. Skew path to JA through South Pacific?

Also, look for daytime (or 24h/day?) Sporadic-E openings to midwest and south-east USA — and probably elsewhere in USA/Canada, too. Also, meteor scatter is possible 24/7… just remember to talk/send code really fast.

Complete maps can be found here. My personal plan is to operate from W6YX (at least few hours on Friday night).

My CQWW CW 2005 activity

Friday, November 25th, 2005

I was QRV in CQWW CW 2005 for total of about 27h. I operated mostly from Stanford Radio Club (W6YX) and had some QSOs Sunday afternoon from home (W6RK).

  • 11/26 00Z-07Z: from W6YX
  • 11/26 15Z-11/27 09Z: from W6YX
  • 11/27 1745-1800 & 2115-2300Z: from W6RK

Thank you for all the QSOs!