[Lowfer] Multicoupler

[Douglas D. Williams]

Actually, I was in error about the KIWA unit being superior in port to port
isolation. It is, from the handwritten specs that KIWA supplied to me,
about equal to the published specs of the Stridsburg unit.

The KIWA unit, although being custom built, was still less expensive (about
$100 less) than the Stridsburg unit you linked. The Stridsburg unit you
linked, however, has no loss from the input port to the four output ports,
due to incorporating an active amp. Plus, the Stridsburg unit has four
output ports.....twice as many.

Again, thank your for bringing this to our attention. It seems, from the
specs and pictures, to be a very well made and rugged splitter for those of
us interested in VLF/LF.

73, Doug KB4OER





On Fri, Dec 21, 2012 at 11:40 AM, Douglas D. Williams <kb4oer at gmail.com>wrote:

> David,
>
> Thank you for bringing this product to our attention.
>
> I recently (within the last six months) had Kiwa Electronics custom build
> a two port splitter/combiner with a frequency response of 1.5 kHz to 2.0
> MHz. I have been extremely pleased with the Kiwa unit, and have been using
> it to use the same active whip antenna with two different receivers.
>
> The unit you linked has a narrower frequency response (which may be a good
> thing if you have no interest in receiving above 500 kHz), twice as many
> output ports, and appears to have a built in amplifier to eliminate the
> inherent loss in a passive device. The Kiwa unit I had built is completely
> passive, goes lower and higher in frequency, has greater port to port
> isolation (if I remember correctly), and has an inherent 6dB loss from the
> input port to the two output ports. Also, it appears to me that the Kiwa
> unit, being passive, would allow you to use two different antennas with one
> receiver, while the Stridsberg unit, having an active amp, would only be
> intended to be used as a splitter.
>
> The unit you linked appears to be solidly built. I would wonder if, since
> it has an active amp, it is able to be easily opened up and repaired by the
> end user should a failure happen? Hopefully, it's not "potted" like some
> European devices I have purchased in the past.
>
> 73, Doug KB4OER
>
>
>
>
>
> On Fri, Dec 21, 2012 at 11:07 AM, David L. Wilson <dwilson314 at verizon.net>wrote:
>
>> I have noted that Stridsburg has a 4 output active multicoupler now for
>> VLF/LF.   I can be found on
>> http://www.stridsberg.com/prod01.htm Look for MCA04VLF.  I have ordered
>> one
>> to see how well it works.
>> Has anyone tried one of these?
>>
>>
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>