[time-nuts] FS700 antenna

[Stan, W1LE]

The classical approach:

Look at the spectrum and notch or filter out what is not wanted.

The FS-700 does have a set of filters and a front panel LORAN output 
(w/gain)
to monitor with a spectrum analyzer for filter settings.

I like the AUSTRON model 2048 LF Multifilter, just like a 1X4 RF 
multicoupler
with a series of 8 notch filters for ~70 thru 130 KHz, with a peak 
indicator and a spherics indicator light.
Notch filters can be switch selected on the front or some are on the 
real panel.

For intermittent signals like noises, the peak indicator lamp gets my 
attention.

Stan, W1LE



On 5/5/2012 7:23 AM, Poul-Henning Kamp wrote:
> In message<E95F2CE5F1BA47B0A959AE061D4B9677 at athlon>, "Ulrich Bangert" writes:
>
>> The effect stopped to appear from the very moment when the antenna was put
>> out of the house in a distance of abt 20 m. While the effect is still not
>> completely understood there are at least 2 possible reasons:
> It is far more likely that you have a switch-mode power-supply in your
> house which wanders over the 80-120 kHz frequency band in a very
> noisy way.
>