[IRCA] "Slider SWP" Generally Superior to Slider E100 Models

[D1028Gary@xxxxxxx]

Hello Guys,
 
     In a rather poorly-kept secret, three C.Crane SWP  ultralight radio 
units recently were fully modified by Steve Ratzlaff  (Murata IF filters) and 
myself (Slider loopsticks) to create a  modified ultralight radio with 
unprecedented weak-signal DX capability.  In  comparison to the fully modified E100 
models, the Slider SWP's not only have  slightly superior sensitivity, but 
significantly easier Slider coil  tuning.
 
     Balanced against these benefits are the  somewhat inconvenient SWP 
pushbutton volume controls, and a chassis which was  not engineered for easy 
disassembly (unlike the E100).  The Slider  modification in particular is a fairly 
serious test of a technician's patience,  with the two leads from the single 
loopstick coil routed to an awkward,  tight location on the back of the RF 
board.  This contrasts with the  supremely simple Slider modification to the E100, 
which can be done with no  prior experience.
 
     Owners of the fully-modified E100 models  already possess most of the 
DXing capability available on the SWP Sliders, and  there is no reason to feel 
that the SWP provides a huge leap in  capability.  DXers who have heard both 
models in comparison (Guy Atkins and  Kevin Schanilec) agree with me that the 
SWP model simply has slightly  better weak-signal capability, and somewhat 
easier Slider-coil  tuning.  Both should be excellent for travel portables or basic 
DXpedition  receivers, however.
 
     Because of a serious backlog in pending ULR  articles (including the 
2009 Shootout), there hasn't been time yet to write a  full report on the C.Crane 
SWP "full transformation" modifications, giving  instructions and part 
sources.  This is planned to be completed and posted  soon, however.  
 
     The C.Crane SWP is one of the models which  will be fully covered in the 
upcoming 2009 Ultralight Radio Shootout review,  along with the Degen DE1123, 
Kaito KA11, Degen DE1105, and  Tecsun DR-910.
 
     73,  Gary DeBock   
 
     
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