[hpsdr] Frequency tuning with Mercury/PowerSDR2025

[Bob McGwier]

I suspect you need to go into the setup on PowerSDR and check the box that
says "spur reduction".  This really engages the software tuning which is
what is needed.

Bob


ARRL SDR Working Group Chair
Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats,
NJQRP, QRP ARCI, QCWA, FRC.
"And yes I said, yes I will Yes", Molly Bloom

-----Original Message-----
From: hpsdr-bounces at lists.hpsdr.org [mailto:hpsdr-bounces at lists.hpsdr.org]
On Behalf Of David Woodhead
Sent: Saturday, December 27, 2008 9:17 PM
To: hpsdr at lists.hpsdr.org
Subject: [hpsdr] Frequency tuning with Mercury/PowerSDR2025

***** High Performance Software Defined Radio Discussion List *****

I'm using Mercury with Phil's V2 code and SVN2025. Noticing that the
frequency tuning is acting strange....

With a CW input at 7MHz and tuning the receiver in 1hz steps the frequency
only changes at the following transistions
7.000,041/042
7.000,100/101
7.000,158/159
7.000,217/218

Looks like the min tuning step is ~ 60Hz

Seems to vary with mode. Above was CWL.

David.
KM5TZ
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