Re: [IRCA] Night time Paper clip antenna band scan

[vroomski@xxxxxxxxxxx]

Hi Kevin, 

Yes the JRC NRD 545 has a hi-Z input switch that the 
user can switch between 50 ohm and hi-Z.  
The paper clip works much better on the hi-Z 
mode.  Since most stations around here lower
power at night I will test the difference during
the day.  

Just measured the paper clip and it's 7 inches in length.
Have KGO 810 in with S-0 with audio and a little noise.
100% readable.  KJR 950 also in with S-0 signal with
good audio with little noise.

Thanks for the tip Kevin.  Might try next a small ewe
antenna using a 18 kt necklace about 18" long with
drinking straws for masts.

Gotta go, KSL 1160 in coming in.

Dennis,
Salmon Creek, WA

-------------- Original message -------------- 
From: satya@xxxxxxxxxxxx 

> Hey Dennis: 
> 
> Do you have a hi-Z input to the receiver, and if so does that fare better 
> than inserting into the 50-ohm SO-239 jack? A longwire/longclip antenna 
> is typically several hundred ohms... 
> 
> Also, have you tried terminating the paperclip? I'm thinking you should 
> have a good ground this time of year :-). 
> 
> With nothing better to do - Kevin 
> 
> 
> 
> 
> > 
> > -- 
> > Guy, 
> > 
> > A list of the stations heard with the paper clip attached to the 
> > S0239 jack. 
> > 
> > 620 KPOJ S-2.5 db 
> > 750 KXL S-.75 db 
> > 800 KDPQ S-0 audio with noise. 
> > 860 KPAM S-7.25 db 
> > 910 KTRO S-3 db 
> > 970 KCMD S-0 audio with noise. 
> > 1010 KOOR S-0 audio no noise. 
> > 1040 KLVP S-0 audio with a little noise. 
> > 1080 KFXX S-2.5 db 
> > 1150 KXMG S-1.5 db 
> > 1190 KEX S-0 audio with a little noise. 
> > 1230 KMUZ S-0 equal audio and noise. 
> > 1330 KKPZ S-0 audio with noise. 
> > 1480 KBMS S-0 audio with noise. 
> > 1520 KMPG S-0 audio with noise. 
> > 1550 KKAD S-.75 db 
> > 1600 KKOH S-0 some audio under noise. 
> > 1640 KDZR S-0 equal audio and noise. 
> > 
> > 2' bnc coax cable only, 860 KPAM only station with audio and it 
> > was weak with noise. 
> > 
> > Placing the paper clip into the bnc connector of the 2' coax raised 
> > the signal of KXL from S-.75 db to S-3 db. KPAM 860 with from 
> > S-7.5 db to S-9+5 db. KEX 1190 went from S-0 to S-3 db. 
> > 
> > The bnc 2' coax with the paper clip was best of the three methods. 
> > 
> > Attaching the paper clip to the palstar tuner produced poor results. 
> > 
> > Dennis, 
> > Salmon Creek, WA 
> > 
> > 
> > 
> > -------------- Original message -------------- 
> > From: "Guy Atkins" 
> > 
> >> Hi Dennis, 
> >> I think it's very likely that the two foot long coax cable's shield is 
> >> also 
> >> contributing to signal reception, and coupling to the inner conductor. 
> >> I'd 
> >> be interested to read a comparison using the unfolded paperclip stuck 
> >> right 
> >> into the SO239 jack on the back of your receiver. 
> >> 
> >> Congrats on beginning a new niche DXing hobby! How soon will the PCDX 
> >> Yahoogroup be started? 
> >> 
> >> Guy Atkins 
> >> Puyallup, WA USA 
> >> www.perseus-sdr.blogspot.com 
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