Return to KLUBNL.PL main page

rsgb_lf_group
[Top] [All Lists]
<prev [Date] next>
[Advanced]
 <prev [Thread] next>

Re: LF: Re: 136kHz LPF toroids?

from [Gary - G4WGT] [Permanent Link][Original]
To: [email protected]
Subject: Re: LF: Re: 136kHz LPF toroids?
From: Gary - G4WGT <[email protected]>
Date: Sun, 25 Jul 2010 19:39:10 +0100
Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:sender:received :in-reply-to:references:date:x-google-sender-auth:message-id:subject :from:to:content-type; bh=mgfoHiIkbXcp5WUKeA4M87TUGB8XCn/reM1yFQzn5FE=; b=BYzB3yM16+NOAEb5XvG91DrKSwBiS1129LM+u9pX0DWOcdsssFZowdW2qTRLYsd81P yhxXvRwZau8iDnYZuizLupsWbUZ7Olr+xlcMY6b8JvBTMcL6krhPF74II7kGITwBmf1X sT+QR66JPcjweKaH+Dw58iq4CxTSpuWCJVXTs=
Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:content-type; b=qcczC3IS6IcA8mHIeGsvpxX5T7i5T76LgBuLMrXxdmo9IMcc0A0PPq6OOPjNj5jr/d BwJUib6xobdgLC0ya4RuQj69zCXuZVeR5nwGO1Y/IL0TPTqZKirJrHi2Bedom0wtePCs TxwIyVtnD1j6YYobjIwh4reK9JzkKuTqthSKs=
Domainkey-status: good (testing)
In-reply-to: <002a01cb2c25$ed5da320$0601a8c0@xphd97xgq27nyf>
References: <[email protected]> <002a01cb2c25$ed5da320$0601a8c0@xphd97xgq27nyf>
Reply-to: [email protected]
Sender: [email protected]
Hi Mal,

You wrote :-
The aim on this band is for at least 1W erp

The maximum allowed ERP for this band (136kHz) is 1 watt ERP.

73

Gary - G4WGT.


On 25 July 2010 19:19, mal hamilton <[email protected]> wrote:
Roger
A T- 200 is ideal but maybe too large for u. Except you have a large antenna 20w is not enough on 137 for any serious impact.
The aim on this band is for at least 1W erp
de mal/g3kev
 
----- Original Message -----
Sent: Sunday, July 25, 2010 6:58 PM
Subject: LF: 136kHz LPF toroids?

Some advice please....
  1. I'm about to construct a 136kHz transverter with an output power up to 20W. What's the best choice of toroid for the TX output low pass filter inductors for this sort of power level?  Around 54uH is required and this is rather too much for a T50 (red) toroid that I used on 500kHz. I don't want anything too physically large if I can avoid it.
  2. Also, are there any readily available canned inductors (or toroids) suitable for use as the input tuned circuit on RX? Something like the KANK3333 inductors from Toko? Again, nothing too big unless this is a necessity for large signal handling.
Thanks in advance for inputs.

73s
Roger G3XBM

--
http://g3xbm-qrp.blogspot.com/
http://www.g3xbm.co.uk
http://www.youtube.com/user/g3xbm
G3XBM    GQRP 1678      ISWL G11088

[More with this subject...]
<Prev in Thread] Current Thread [Next in Thread>
Previous by Date:  Re: LF: 136kHz LPF toroids?, Stefan Schäfer
Next by Date:  Re: LF: Re: Re: JA7NI, Scott Tilley
Previous by Thread:  LF: Re: 136kHz LPF toroids?, mal hamilton
Next by Thread:  Re: LF: Re: 136kHz LPF toroids?, mal hamilton
Indexes:  [Date] [Thread] [Top] [All Lists]