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Re: LF: Receivers

To: [email protected]
Subject: Re: LF: Receivers
From: [email protected]
Date: Tue, 13 Jul 2004 17:45:33 +0200
In-reply-to: <[email protected]>
Reply-to: [email protected]
Sender: [email protected]
Hello Jay, Hello all,

i was just looking for more information about the Harris RF-590 and found this page : http://www3.ctktv.ne.jp/~tadashi/RF590/RF590.PDF
Its a Block Diagam...
greetings
Arthur

Harris RF-590:

* Good sensitivity down to 10 kHz
* 10 MHz reference input
* noise blanker works well
* 4 agc settings + off
* multiple filter positions
* 1 Hz tuning steps
* variable BFO pitch
* calibrated signal strength meter
* scan and other misc. bells and whistles

Only drawback I've found is filter "blow by" with very strong signals.
Probably an easy fix - I just haven't got to it.

Jay, W1VD



----- Original Message ----- From: "WE0H" <[email protected]>
To: <[email protected]>
Sent: Tuesday, July 13, 2004 12:14 AM
Subject: RE: LF: Receivers


> I run my TS 440 on 1750 meters and noticed it has similar sensitivity
as my
> HP 3586C Selective Level Meter. Good to hear another person using it
even
> lower and still having good sensitivity.
>
> Mike
> WE0H
> WD2XGI
>
>
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]]
> On Behalf Of Rik Strobbe
> Sent: Monday, July 12, 2004 2:30 PM
> To: [email protected]
> Subject: Re: LF: Receivers
>
> Mike,
>
> I'm using a Kenwood TS440. Sensitivity is very good at 136kHz. A small
> loop (1x1m) can be used without pre-amp, if I am using the TX antenna
> for receiving I need at least 30dB attenuation before the LF
> noisefloor is about 10dB above the RX noisefloor (so you are sure to
> have full sensitivity - you can hear any signal that comes out of the
> noise - and optimal IMD behaviour)
>
> 73, Rik   ON7YD
>
> Citeren Mike Dennison <[email protected]>:
>
> > I am compiling a list of receivers and transceivers suitable
> > for 136kHz. I know most of the older radios already but
> > does anyone use a radio made in, say, the last five years
> > that they use sucessfully? If so, does it need an LF pre-
> > amp? Is the noise blanker any good on LF QRN and/or
> > Loran? Is a narrow filter fitted as standard?
> >
> > Your help would be appreciated.
> >
> > Thanks
> >
> > Mike, G3XDV
> > ==========
> >
> >
> >
>
>
>
>
>






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