[Drake] T-4XC/R-4C on 30 and 17 meters

[Harvey Hetland]

Rod and other interested indivduals:

I posted some information relative to the use of 30m with the T-4X
series of transmitters on 03 December 2002.  The Drake manuals provide
the necessary information for all the "WARC bands" as well as a
recommendation for avoiding supurious emissions on 30m.  Manual page
references are provided at the conclusion of my posting as extracted
from the list's archives:

Harvey D. D. Hetland n6mm@arrl.net 
Tue, 03 Dec 2002 10:51:52 -0600 

I have also been very pleased with International Crystal's crystal
products. 
They are properly "aged" prior to shipping which takes a little longer,
but is
worth it.

One word of caution, however.  Their database may not reflect the Drake
manual's
recommendation to use a 300 kHz offset for the 30m crystal in the T-4X
series of
transmitters to avoid spurious emissions.  At least this was still the
case when
I ordered a 30m set about five years ago.  The crystal frequency
recommended by
Drake is 20.8 MHz for use between 10.0 and 10.2 MHz with the T-4X
series.  The
"zero" on the dial corresponds to 9.7 MHz so 10.1 MHz will be at 400 on
the dial
scale.

73,
Harvey, N6MM

References:  
T-4X/T-4 manual page 22
T-4XB manual page 25
T-4XB/T-4 manual page 24
T-4XC manual page 2-4