[Lf] [Fwd: LF: pegelmesser]

[Andre Kesteloot]

hamilton mal wrote:

> I have today been testing a Siemens Pegelmesser D2155 as a LF
> receiver.Freq range 200 hz - 620 khz. B/widths 20 hz and 3.1 khz. Mode
> lsb/usb.This instrument makes a fb LF receiver for 73 and 136 khz,
> with the narrow 20 hz filter and superb sensitivity. With my 90 metre
> perimiter loop and vertical I have to throttle the RF attenuater well
> back even on the weakest signals. The Siemens and the W & G spm-12
> peform about the same.I intend to use both for space diversity
> reception, one fed by the vertical and the other the loop, then
> combine the af outputs.I hope to hear some transatlantic signals later
> on in the year with this setup. These selective pegelmessers
> outperform any other receiver that I tried on LF, including the
> FT1000mp/ FT847/IC746/IC706/TS850/TS50, the performance of these
> receivers are acceptable and some are much better than others but
> sensitivity is generally poor on LF, and selectivity with the normal
> 200 hz filter is too wide, although those with DSP are better.I use a
> DSP processer but it is not really necessary with those pegelmessers
> fitted with 20/25 hz filters.Pegelmessers in mint/execllent condition
> are not cheap but compared to alternatives which were never designed
> for LF working are better value.73 de Mal/G3KEV



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