On Mar 29, 1:23*am, garthpdm wrote:
Hi,
I bought a Degen 1103 on ebay and it came in the mail yesterday. *I
was amazed at the difference in performance between it and my Redsun
RP 2100. *I can hear so much more on the Degen. *I realize neither one
is amoung the elite of shortwave radios but wow, what a difference.
Between 20000 - 29999 I can hear lots of different stations and that
is just with the whip. *Neither the whip nor the longwire can hear the
same stations or very much else on the Redsun. *Why is that? *From the
reviews I have read I thought the RP 2100 was relatively sensitive.
Anyone have a similar experience?

Garth

In my experience with the DE1103, there is a lot of stuff above 20MHz
all the time - it's crud generated internally due to intermodulation
distortion among strong signals at lower and higher frequencies. So
you will hear MW stations and signals from lower frequency SWBC bands
up there plus hash from local VHF-FM and TV stations. It's very
difficult to fish out genuine signals from all this crud and I find
the DE1103 to be quite useless in that range. Connecting the antenna
through a preselector or bandpass filter is necessary to depress the
mess. Maybe the RP2100 is actually giving you a better picture of what
is actually being propagated above 20MHz.

Tom

Tom wrote:

In my experience with the DE1103, there is a lot of stuff above 20MHz
all the time - it's crud generated internally due to intermodulation
distortion among strong signals at lower and higher frequencies.


Crud?...I used to get a lot of that between 26.965-27.405 MHz. In fact,
that is all I got. Seems to have quietened down a lot in the last
decade. It must have something to do with the eleven year 'Dumb Spot" cycle.






mike