Tuesday, December 29, 2009

NOAA 19 weather picture today 1229 0551 UTC

Thick dark cloud forms north of Lahad Datu. Going to be rain?

Today's nature shots





Sunday, December 27, 2009

Monday, December 07, 2009

JT65 EME.

Will be operating EME in JT65 Mode once the antenna set for this purpose finished. There are 3 mode of JT65 and they are JT65A, B and C.

I will operate the JT65B for start.

Well EME is the operating mode which use the moon to act as a reflector to reflects back our signal to the other side of the earth. So the most suitable time to operate this mode is when the moon is at the earth horizon. The place where the moon starts to rise of just sets.

My ant setup will be stacking of the V and U antenna sits in the Yaesu G5500 Az/El Rotator.

More news will be coming up.

Thursday, December 03, 2009

Amateur Satellite Frequency combination operating mode.

In Amateur Satellite operating there are certain operating mode or frequencies combinations that we need to follow of.

Frequencies ranges that is use with Amateur Satellite is:
1) 145MHz
2) 435MHz
3) 21MHz
4) 29MHz
5) 2.4GHz

Several combinations mode of uplink and downlink for the above frequencies is:

1) Mode A 145 up / 29 down
2) Mode B 435 up / 145 down
3) Mode JA 145 up / 435 down (Analogue Modulation)
4) Mode JD 145 up / 435 down (Digital Modulation)
5) Mode K 21 up / 29 down
6) Mode S 435 up / 2.4G down
7) Mode T 21 up / 145 down

Good luck operating Amateur Satellite.

From 9M6WST Wong.