MFJ 9040 Questions

---------

From: Bill Myers (bjmyers@arc.net)
Date: Wed May 28 1997 - 18:08:33 EDT


Howdy.....

I've recently aquired a MFJ9040. I really like it and have had some really
nice QSO's with it. And it is a lot smaller than my HW-8 and is putting out
about 3 watts compared to 1 watt on the HW-8.

However.... I got a couple of questions.

I have done a complete alignment per the book. The only "problem" here is
that the opposite sideband is NOT supressed. The book tells you to adjust
the BFO Trimcap so that the Voltmeter peak coincides with a 700 Hz tone. It
then says to check supression of the opposite sideband. IT DOES NOT TELL
YOU HOW TO ADJUST FOR SIDEBAND SUPRESSION if it isn't supressed. Can anyone
help here.

The AGC on this one appears to be operating fine at the factory specs,
however, when sending the sidetone appears to be overdriving. How can I
turn down the "drive" of the sidetone so it doesn't saturate the receiver.
The receiver is recovering very quickly when I unkey and I can hear signals
very well between cw characters. It's almost like a THUMP, but not quite.

ALSO, has anyone sent one of these (or any 90xx series) radio back to MFJ
for a factory alignment? I was told it runs about $30.00 now. Wuld it be
better for me to send it back and let them do it, or can I get it done myself.

I do have basic test equipment, freq generator, older Heathkit o'scopes,
DMM, etc.

Any information and help will be appreciated.

--
Bill Myers	KK4KF	Grid - EM60rk
FISTS#2390 QRP-L#755 ARCI#9282 scQRPions#42 
CQC#386 NE#508 AK/QRP#081
Snail Mail	P. O. Box 178	 Shalimar, FL 32579
e-mail		<bjmyers@arc.net>
homepage	http://www.nfds.net/~bmyers/
CHECK OUT THE FISTS INTERNATIONAL CW CLUB U. S. HOMEPAGE
http://n9nvv.qrp.com/~fists  (That's N 9 N V V)


Search QRP-L Archives

[ QRP-L Archive | ]
[ 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 ]

---------

This archive was generated by hypermail 2b29 on Fri Jun 02 2000 - 11:33:46 EDT

kd4ab@kd4ab.org