[Hallicrafters] Signal generators

[Carl]

----- Original Message ----- 
From: "James Liles" <james.liles at comcast.net>
To: <hallicrafters at mailman.qth.net>
Sent: Thursday, November 17, 2011 8:03 PM
Subject: Re: [Hallicrafters] Signal generators


> Correction:
>
> An HP 3325A is a great signal, function, and sweep generator --- range 1
> cycle to 20Mc but rock solid and very low phase noise.  Lowest output is 
> 1mv
> but an attenuator will get you anywhere you want to go.  Has one onboard
> marker.  Very easy to use and stable.  Something to think about at about
> $300  to $400.
>
> Another thought --- the HP 11710B down converter will work with any 
> sweeper
> or signal generator and get you nearly down to audio --- about $75 to 
> $100.
>
> I used an HP 8640B signal generator with a ramp/function generator
> into the FM input as a sweeper for years but the sweep range is limited to
> approximately 1% of the carrier frequency.  If used with the 11710B down
> converter the sweep range is 500kc.  The input frequency range for the
> 11710B is 50mc to 61mc for an output range of 10kc to 11mc although it 
> will
> work down to audio.  The 8640B using FM modulation at 50mc will be capable
> of varying the frequency 500kc for more than enough range even for 
> broadband
> systems in the 10kc to 11mc catagory.
>
> Long time since I used the configuration.
>
> Kindest regards Jim K9AXN


That is very good to know and I certainly overlooked that possibility.

Thanks again.

Carl
KM1H