No the century 21 was also a direct conversion receiver with an
oscillator running at the operating frequency.
Carl Moreschi N4PY
58 Hogwood Rd
Louisburg, NC 27549
www.n4py.com
On 12/29/2017 5:07 PM, Dukes HiFi wrote:
Whoda thunk???
The C21 was a superheterodyne with a 5.0 to 5.5 MHz wide IF stage, fed by the RF input and
the crystal oscillator for each band, and a product detector on the AF board that uses the
VFO as the “BFO” to carry out product detection. It is NOT direct conversion.
I had always assumed that the C22 was a repackaged C21 with digital display.
WRONG!
It is indeed a direct conversion radio. It premixes the PTO with the crystal
oscillator for each band and shoots the result (which is right on the revive
and transmit frequency) right into a mixer which direct detects signals, then
on to the AF stage! What a downgrade compared with the C21!
WHAT A DOWNGRADE TT made to produce the C22!
If you have a choice, get a C21!
Gary
W0DVN
On Dec 29, 2017, at 3:04 PM, Winston<jones_winston@bellsouth.net> wrote:
Good fun cw rig.
Winston K4CWQ
Sent from my iPhone
On Dec 29, 2017, at 2:56 PM, Dr Richard San Antonio<K1MD@cox.net> wrote:
Buy it....lots of fun but don't sell your Omni6+!
Richard K1MD
-----Original Message-----
From: TenTec [mailto:tentec-bounces@contesting.com] On Behalf Of Michael
Tortorella
Sent: Friday, December 29, 2017 11:42 AM
To: tentec@contesting.com
Subject: [TenTec] century 22
Hi all, I am contemplating purchase of a Century 22 and would like to hear
what people on the list think of that rig.
Thanks and 73
Mike W2IY
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