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public:radio:dormant:11m

Older Topics

10m/12m

A diversion into 10m and 12m

Equipment

Antenna

  • Sleeve “T2LT” dipole
    • Sloping at approx. 45°
    • Choke 5T 110mm diameter air wound
  • Choke design recommendations :

  • Update 22/5/23 : Moved to fully vertical with choke/feedpoint 2m agl and tip @ 7m agl
    • using 7m “Sota pole”
  • Update 4/6/12 : moved back to sloping configureaton on original 5m long pole, and choke/radiator/feedpoint changed to suit 12m : choke now 6T on 110m former at 3m from “feedpoint”
    • radiator section lengthened to 3m.

(Photo to follow)

Propagation Data

10m WSPR Spots vs SFI & K indices

Date Time First SpotTime Last SpotPowerSpots In Min/Max/Ave kmSpots OutMin/Max/Ave km SFI SSN K 48H Flare
10/05/23 (1442) 2010 5W 3 2939 / 2939 / 2939 26 2939 / 10373 / 4043 180 151 5 M6.5
10/05/23 2332 0122 5W 7 1008 / 1605 / 1297 9 1175 / 1743 / 1348 180 151 5 M6.5

Last Update : 28/07/23 16:09 BST

Further Information

public/radio/dormant/11m.txt · Last modified: 28/07/23 16:09 BST by john