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The satellite sub-band

Recently, we had the wonderful happening of 'Suitsat' that spurred the interest of many young minds.

The frequency of 145.990 is in the OSCAR sub band (145.800-146.000) as indicated by the ARRL in their well
publicized band plan.

Many interlopers find their way into this clear portion of two meters unknowingly using these sub bands and causing headaches to those that were straining to hear this event.

Even using nearby Freqs causes problems when the super ears are listening for the birds. Also, 145.800 the ISS downlink, is in this same sub band and is being used in many metro areas for chit-chat and other experiments.

We must remind each other that the band plan was put in place to assist us in utilizing the spectrum effectively. Those that just hear nothing and start a QSO should be reminded about how wide their signal is and that they are causing many well intentioned hams trying to make contact with
these satellites and happenings unintentional interference.

There may not be a satellite signal every minute of the day in these sub bands, but when they are there, terrestrial stations are not listening with big enough ears as someone with an OSCAR caliber setup.

Point these sub bands out to all at your next club meeting or get together.

Dee, NB2F


 

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