Re: Question about ultralight and loops for MW


pianoplayer88key
 

But, Gary... will that PL-360 with its plug-in 7.5" loopstick still fit in a shirt pocket or pants pocket, and be properly oriented (i.e. not vertical, reducing the signal pickup)? If I understand correctly, one of the intents of having ULRs be no larger than a certain size was so they would fit in pockets.

--- In ultralightdx@..., D1028Gary@... wrote:

"The directly-connected ferrite and air core loops always require
modification to the radio (and possibly the addition of other external hard-wired
components), but avoid the need for a separate tuning step."

Hello All,

This is one unique exception to the above statement-- the 7.5" plug-in
loopstick PL-360, which requires no radio "surgery," but provides a nice AM
performance boost. Having just sent out over 20 of these, I should have
remembered this exception :-)

73, Gary


In a message dated 7/6/2010 1:32:44 P.M. Pacific Daylight Time,
D1028Gary@... writes:




Hello Sarmento,

Many air core and ferrite core external loops give excellent performance
with the Tecsun PL-380 and PL-310 models, and make DXing a lot more fun.

Depending upon your DXing preferences, you can choose a transplanted
ferrite loop (like the 7.5" loopstick PL-380), an inductively coupled ferrite
loop (like the Q-stick) or a direct or inductively-or a direct or
inductively-<WBR>coupled air core loop. All of these antenna designs have performance
tradeoffs, and no one design

Most DXers who wish to avoid "surgery" on the radio use air or ferrite
core loops with the inductive coupling system, which gives an excellent
performance boost (depending on the size of the loop) with an extra tuned circuit
to aid in selectivity. The directly-connected ferrite and air core loops
always require modification to the radio (and possibly the addition of other
external hard-wired components), but avoid the need for a separate tuning
step.

My own favorite for convenient DXpedition usage is the 3' portable PVC air
core loop, which is described in the photo article at
_http://www.mediafirhttp://www.mediaht_ (http://www.mediafire.com/?hqyzzu1mvyt) . This tuned
passive loop provides a powerful inductive coupling boost for the barefoot
PL-380, can be assembled in 2 minutes, and will fit inside a packed compact
car trunk.

73 and Good DX,
Gary DeBock (in Puyallup, WA, USA)




In a message dated 7/6/2010 4:12:29 A.M. Pacific Daylight Time,
sarmento.campos@In a messIn a message d


Hi

After have seen info about these new DSP receivers (like PL310/380) :

_http://bbs.tecsun.http://bbs.thttp://bbhttp:/_
(http://bbs.tecsun.com.cn/0002.asp?open=186695)

I wonder if it would support loop antennas, like square air coil or even
ferrite loops.

If one issue to add : living near big power MW stations.

Have anyone tried MW dx in this conditions ?

Regards
Sarmento - Rio de Janeiro - Brazil

Join main@UltralightDX.groups.io to automatically receive all group messages.