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LF: Re: Re: semiconductor switches, was "Pre-amps on LF"

To: [email protected]
Subject: LF: Re: Re: semiconductor switches, was "Pre-amps on LF"
From: [email protected]
Date: Tue, 11 Jan 2005 15:30:21 +0100
Reply-to: [email protected]
Sender: [email protected]
Thread-index: AcT36WVqyisEaG5BSx2QzOcrPjIcSgAAELKQ
Thread-topic: LF: Re: semiconductor switches, was "Pre-amps on LF"
Not sure if IF-break-through could be a problem - as it is at least on the 
28MHz band - so might be an idea to use lower frequency band, possibly around 
2MHz (?), so I might even consider my well reputed KwEa receiver

73,
Jan-Martin, LA8AK
-----Opprinnelig melding-----
Fra: [email protected]


It is now starting to look easier to start from scratch by building
a new LF RX or simply to continue using the external preamp.

73
Joe VO1NA

Hello Joe,

maybe is less work to build an up-convertor to HF and use the existing RX at HF. Using a widely available (and thus cheap) 10MHz xtal you end up right in the 30m band (10.137kHz). As the RX is probably very sensitive at 10MHz maybe you can do without any amplification at LF, just a bandpass filter and a mixer (preferably passive DBM, minicircuits has some nice and cheap building blocks).

73, Rik ON7YD




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