ARRL

AB3FN

Joined: Tue, Jun 5th 2007, 14:11 Roles: N/A Moderates: N/A

Latest Topics

Topic Created Posts Views Last Activity
Strange RFI on 10 meters and 6 meters Jun 19th, 17:12 2 235 on 19/6/14
Two important functions missing in new radios ? Feb 4th 2013, 15:16 5 873 on 28/2/13

Latest Posts

Topic Author Posted On
Strange RFI on 10 meters and 6 meters AB3FN on 19/6/14
I've recently started hearing noise at approximately 57.3 KHz intervals. The noise is strongest on 6 meters, slightly weaker on 10 meters, and continues to weaken all the way down to 40 meters. This seems "backwards" to other RFI situations. I plan to swap power supplies, use ferrite cores on various lines, etc., but would welcome any thoughts. Thanks.
Two important functions missing in new radios ? AB3FN on 4/2/13
Maybe I'm missing the boat here, but I'd like to understand why our radios don't use signals from GPS or WWV. Lots of low cost consumer electronics does.

Instead of a TCXO, for example, a radio's frequency reference could be derived from GPS or WWV. If those signals were unavailable, then the radio would use its internal reference.

Similarly, why don't our radios include a clock, which would also derive the time from GPS or WWV ? And again, if those signals were not available, then the clock would revert to its own internal crystal.

Seems to me that both features would be easy and cheap to incorporate. Are there technical issues that I'm just not seeing ?

Thanks in advance for your thoughts and for educating me.

73 - Allan, AB3FN

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