Re: [IRCA] Four new ULR stations, 4/3/14 & 4/4/14

["Richard N. Allen" <dx747j@xxxxxx>]

Mike:

The DT-400W receiver's primary drawback is its price.  I notice retailers now list it for $69.95.  I've owned mine since 2008 and pay less then.  

Like most of the smaller ultralight receivers, selectivity is occasionally a problem when you tuned to a weak signal adjacent to a stronger one.  It isn't as noticeable at night as in the daytime.   Some DX-ers have improve it's selectivity by removing the stock filter and carefully replacing it with a LTM450HT filter.

It works very well when coupled with a 7-inch FSL antenna.  I'm presently hearing 540 KWMT, Ft. Dodge IA (5 kW @ 734 km/456 mi) on the DT-400W with the FSL.  It isn't here audible without it.  There is some 550 KFRM slop, and slight co-channel QRM from KDFT.  I will admit KWMT is more listenable (100% readable) on a smaller, but more expensive Sony SRF-T615 (with the FSL), with less KFRM QRM.

The SRF-T615 is the best of all truly ultralight radio sets.  Most of the stations I've logged were with a barefoot T615, including JOAB, JOAK, JOBB, JOBK, and JOUB, as well as 1215 Absolute Radio.  The very selective Tecsun DSL receivers weren't yet available.  I now use a PL-310 or -606 for trans-oceanic DX.

Good DX.

Richard.

Richard Allen,
near Perry OK USA
(36°22'51"N, 97°26'35"W)

Sent from my iPad
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