Re: LF: T/A April 2

["Laurence KL1X" <hellozerohellozero@hotmail.com>]

Joe - on 137Khz does your sensitivity improve with the IPO enabled on the 
817...? its very deaf without a lot of drive but with the L400b eprobe it 
shoves enough signal - without it and on my loop arrays I needed something 
like 20dB gain to get things "hot". I agree on the modification!
Laurence KL1X in 5
okie em26br



from the manual -
"IPO (Intercept Point Optimization) - Bypasses RX Preamp on HF/50 MHz for 
improved performance during strong-signal conditions."

> From: Joe Craig <jcraig@mun.ca>
> Reply-To: rsgb_lf_group@blacksheep.org
> To: rsgb_lf_group@blacksheep.org
> Subject: Re: LF: T/A April 2
> Date: Sun, 2 Apr 2006 21:49:00 -0230 (NDT)
>
> Roelof and group,
>
> I was using an ft-817 with the miniwhip and was quite amazed that
> the LF TX could be heard at 20km.  I will try the attenuator between the
> rig and the miniwhip next time to see if the intermod is from the RX.
> Thanks fort the suggestion.
>
> The ft817 is very deaf below 0.5 MHz because of the small inductive
> reactances in the front end and mixer xfmr I believe, but modifying
> it would be awkward because of its size.
>
> Joe