Re: Anyone Comments on Sangean DT400W use?


Hey Rob:

The M37V and DT400W tune in fixed 9 or 10 khz increments (you select
either one depending on where you're at in the world). As you push the
tune button, the receiver tuning jumps up and down in those increments
(1120, 1130, 1140, etc.). Analog receivers like the SRF-59, however, tune
continuously, so you could dial up whatever frequency you like, limited
only by your fine motor skills. The Eton e100 and others tune in 1 khz
steps, so while it isn't continuous like the analog SRF-59, the control is
much finer.

Why would this be important? If you are trying to listen to, say, 1530
khz, and a strong local on 1520 (say, WWKB's 50,000 watts...) is stomping
all over 1530, it would be nice to nudge over to 1531 or 1532 to get
further away from the problem on 1520. The station on 1530 will
generally be much more readable, and perhaps be free of "slop" from 1520
altogether. Depending on the filtering involved, you may be able to get
over to 1533 or 1534 before you start losing the desired station on 1530.
The e100 could do this, but the M37V and DT400W could not.

This ability to tune away from problems is especially important on TA
signals, since they will generally be quite close to a domestic station.
For example, 1134-Croatia competes with domestic channels on 1130 and
1140, so it would be nice to be able to tune to 1133 or 1135, away from
whatever domestic channel is giving you the most problems.

So, the M37V and DT400W would not be able to be detuned either way -
you're stuck with a fixed on-channel frequency. For domestic DXing
without a strong local to contend with, this may not be a big problem. If
you're out in Newfoundland, it's REALLY not a problem. However, in your
situation, you would probably have serious problems on a few channels like
1510 and 1530, and strong regional stations from Montreal, New York, etc.
will make adjacent channels more difficult to hear.



As I posted before I just missed out on Durham radio E100 sale a few
weeks ago by minutes or hours.
But to show my newness what does ".....unable to tune in 1
khz increments ..." mean? What does the Sony M-37 or Sangean 400W
tune in increments?


--- In ultralightdx@..., satya@... wrote:

Hey Rob:

The DT400W is the sensitivity champ, although it is unable to tune
in 1
khz increments and the stock selectivity is rather broad,
especially for
TA work. There is a filter mod posted at, but it sounds
like you
may not be in a position to do that (I know I wouldn't even think
it...). As for the ability to tune away from the standard 9/10 khz
channels, I personally would want that capability for serious
DXing, even
domestic, although the judicious use of a passive loop antenna can

If you're ready to step up, given that you have wielded a soldering
a suggestion is to get an Eton e100 (within the correct serial
range) and put the slider antenna on it. I have VERY modest
skills, and I managed to do the mod fairly quickly. The stock
filter in
the e100 is already top-of-the-class for Ultralights, and so you
could see
how it goes before deciding whether or not to put a narrower filter
in. I
see e100's on eBay quite a bit, and making sure what the serial
number is
before buying would make sure you're getting what you need.

The stock-filtered e100 is an absolute terror on the domestic MW
band, and
in Buffalo you should be able to hear a fair number of TA's.

$.02 from Kevin S. Bainbridge Island, WA

Only having the SRF-59 for 1 month as my first ULR, looking for a
digital readout ULR. Apperars from summer shootout that the
DT400W is best bet. However, can anyone comment on actually using
set long term. OR, any other suggestions for my second set?


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