Kevin


Great explanation. Any other than E100 recommended recievers ULR,
starting with lowest price first and then up that have 1khz
increments ?


TX

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

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.

Kevin

Kevin:

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?

rob


--- 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 DXer.ca, but it sounds

like you

may not be in a position to do that (I know I wouldn't even think

about

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

really

help.

If you're ready to step up, given that you have wielded a

soldering

iron,

a suggestion is to get an Eton e100 (within the correct serial

number

range) and put the slider antenna on it. I have VERY modest

soldering

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

Sangean

DT400W is best bet. However, can anyone comment on actually

using

that

set long term. OR, any other suggestions for my second set?

rob