[Yaesu] VLF sensetivity of FT-900 and FT-817

Mon, 11 Mar 2002 07:56:19 -0500

In general all the Yaesu rigs have sensitivity drops of approximately 6-12
db between 1800 kc and 1799.99 kc, with another 12-24 db drop between 530
and 529.99 kc. This is done to reduce images problems on the SW frequencies.
I am able to copy LW broadcast and air nave beacons easily on my FT-840 and
FT-990 down to 162 kc, with my 80 foot high 160 meter Tee antenna.

73,
Thomas Giella, KN4LF

Plant City, FL
Grid Square- EL88wx
CQ Zone 5
ITU Zone 8

KN4LF 160 Meter Amateur Radio Resources And More:
http://www.kn4lf.com

KN4LF 7 Day Medium Wave Radio Propagation Outlook:
http://www.kn4lf.com/kn4lf5.htm

Florida Meteorological & Climatic Institute:
http://64.176.157.9/sub/fmci.htm

Giella Website Designs:
http://www.giellawoodsignandwebsitedesigns.com
----- Original Message -----
From: "David Willmore" <[email protected]>
To: <[email protected]>
Sent: Monday, March 11, 2002 12:27 AM
Subject: [Yaesu] VLF sensetivity of FT-900 and FT-817

>
> Does anyone know how well the FT-900 or the FT-817 work for
> VLF receive sensetivity?  I'm trying to hear stations
> between 136KHz and 190KHz.  I'm not hearing anything and
> I want to narrow down if it's my antenna (32 turn shielded
> loop) or the rigs.  Neither rig hears much there.  Might
> be the antenna.
>
> I've heard it said that VLF performance of normal ham rigs
> varies drastically from brand to brand and model to model.
> Anyone know about these two?  Might have to build a
> transverter.
>
> Cheers,
> David N0YMV
> _______________________________________________
> Yaesu mailing list
> [email protected]
> http://mailman.qth.net/mailman/listinfo/yaesu

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