30 Jul
2002
30 Jul
'02
11:42 a.m.
Well today was pretty good to me but I also missed some nice items at the auction.
1. A working Vectrex, console and one controller only no games with it. $5
2. A NES Stack-up cartridge for ROB the robot and it had the special Famicon board and
Famicon-to-NES converter inside. $6
3. A Advanced Electronic Applications, Inc. Computer Patch Interface. It's a gray
metal box with the following on the faceplate Filter - Tune - Var Shift - STBY/PTT - NORM
- OFF/ON - PWR light. Under the Filter title are three buttons named VAR - 170 - CW.
It's a model CP-1 and on the back are lots of phono ports. Anyone have info on this
unit?
4. Got several books, generic pc's such as 386 and P166's, some 14" monitors,
and some ink jets all for $10.
30 Jul
30 Jul
12:02 p.m.
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31 Jul
31 Jul
4:05 a.m.
Tony Duell wrote:
It is a demodulator for AFSK signals used in ham radio and cmmercial TTY
stations. Common shifts are 170 and 850 Hz, commercial boys use 425.
Also copies CW morse code with proper software. You can hook it up to a
SW receiver and copy news broadcasts with the computer, if you have a
Baudot program.
AEA is still in business, in Lynwood, WA, if you need more info.
Gary HIldebrand
ST. Joseph, MO
3. A Advanced Electronic Applications, Inc.
Computer Patch Interface. =
It's a gray metal box with the following on the faceplate Filter - Tune =
- Var Shift - STBY/PTT - NORM - OFF/ON - PWR light. Under the Filter =
title are three buttons named VAR - 170 - CW.
It's a model CP-1 and on the back are lots of phono ports. Anyone have =
info on this unit?
No real info (as in : no manual), but it sounds like it's got something
to do with amateur radio (ham radio). At least for RTTY (Radio Teletype)
and maybe for morse code as well.
170 (Hz) is a common shift between Mark and Space frequencies for amateur
RTTY IIRC. CW would be Continuous Wave, here used to mean on/off keying,
normally used for morse code.
-tony 
30 Jul
30 Jul
12:12 p.m.
On Tue, 30 Jul 2002, Keys wrote:
Well today was pretty good to me but I also missed
some nice items at the auction.
[snip]
3. A Advanced Electronic Applications, Inc. Computer
Patch Interface.
It's a gray metal box with the following on the faceplate Filter - Tune
- Var Shift - STBY/PTT - NORM - OFF/ON - PWR light. Under the Filter
title are three buttons named VAR - 170 - CW.
It's a model CP-1 and on the back are lots of phono ports. Anyone have
info on this unit?
This is an early AEA (some years out of business now, assets bought by
Timewave Inc., www.timewave.com) interface box for decoding Morse Code and
Radio Teletype signals.
'Var Shift' refers to the different modulation methods used by RTTY
signals, they are FSK and use one tone to denote a 'mark' and one tone to
denote a 'space' with the difference between the two called the 'shift'
of
the signal.
'VAR - 170 - CW' is for Variable shift, a fixed shift of 170 Htz, or
Morse Code... this is a filter adjustment and usually the code part is
fixed on a center frequency of 500 - 900 htz.
As for usefulness, opinions may vary, but it is quite a primitive little
box, compared to thier other products, and similar products of competing
manufacturers... there are quite a few of them around, in fact I saw two
or three at the recent hamfest I attended over the weekend.
Hope this helps a bit.
Cheers
John
31 Jul
31 Jul
9:27 a.m.
Think I have a CP-100 handbook in the system if it's any use. Can't tell you
the differences. Fixed one for someone a long time back. I can remember
seeing a CP-1 but never owned any of that 'commercial' stuff-- too expensive
and never worked as well as home-built stuff anyway. Especially for RTTY.
Dave Brown
Christchurch
NZ
----- Original Message -----
From: "Keys" <jrkeys(a)concentric.net>
To: "cctech@classiccmp" <cctech(a)classiccmp.org>
Sent: Wednesday, July 31, 2002 11:38 AM
Subject: Some Great Finds Today
It's a model CP-1 and on the back are lots of phono ports. Anyone have info
on this unit?
8185
days inactive
8186
days old
5 comments
6 participants
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