 |
| This was Radar 2 aboard a Mackenzie, Restigouche or Improved
Restigouche class ship. It was located on the port side, forward of EMR
and aft of EWCR which was Radio 4. (Photo # E-73473 courtesy
DND, Canadian Forces Joint Imagery Centre provided via by Robert
Langille) |
Items in this photo.
Item 1 - AN/SPA-8 PPI indicator.
Item 2 - AN/UPA-24 control panel for IFF group video decoder.
Item 3 - AN/SPS-12 range scope. It was used to set the final tuning.
Item 4 - AN/SPS-12 control panel
Item 5 - AN/SPA-4 PPI indicator with video input selector switch mounted
at left. The master SPA-4 PPI could be switched among several radar systems.
Item 6 - Sperry Mk II navigation radar.
Item 7 - Remote contol C10260/SPS-10 for SPS-10 radar. The SPS-10 radar
itself was located on the forward bulkhead of Radar 1, one frame
forward and to the right.It had the receiver controls for:
1. Receiver gain
2. FTC on or off (Fast Time Constant)
3. STC controls
STC on/off
STC Amplitude
STC Duration
STC Slope
The last three in the list resided under the cover at the top of the
box.
Transmitter controls:
Off/Stby/Radiate
Long pulse/Short pulse
Antenna rotation On/Off
Item 8 - Sperry Mk II spares kit.
RADAR ROOM FITTINGS
Radar 1 - As pictured above. After the DELEX refits in the 80's
this room contained the ADLIPS
(Automated Data Link Plotting System) equipment. This replaced the
starboard SSA-502 plotting table.
Radar 2 - Contained equipment for SPS-10, SPS-12, Sperry MK 2, radar
test equipment , Air Early Equipment or AN/WLR-1 Counter Measures Receiver.
Radar 3 - IFF gear and SB-440 radar distribution switchboard.
 |
| This as a typical Radio 4 office in a 205 St. Laurent-class steamer.
In later years, this would be reclassified as EWCR (Electronic Warfare
Control Room) although the tally plate above the EWCR door would still
read Radio 4. (Photo # E-73472 courtesy DND, Canadian Forces Joint
Imagery Centre provided via by Robert Langille) |
Items in this photo:
1) Webcor Tape Recorder
2) Receiver - Racal RA-117 with RA-137 LF converter
3) Receiver - Racal RA-17
4) Vault - It likely contained classified pubs (Comm and Non-Comm
related, recognition pubs and low grade
codes).
5) DAU DF set in cabinet.
6) Canadian Marconi MDF-5 medium frequency DF set.
7) Gyro repeater.
8) Two AN/UPD-501 DF receivers. Since no antenna control unit is evident,
this is a dual UPD501 installation meaning that two radar bands can be
monitored simultaneously. In later configurations, two UPD's would share
three antennas but an antenna control unit had to be installed.
9) IC/KAA intercom.
10) AN/UPD-501 power supplies (2)
11) AF amp accessory for UPD-501
 |
| Teletype bays in the Communications and Control Room (CCR ) aboard
the aircraft carrier HMCS Bonaventure. (Photo # BN-4100
courtesy DND, Canadian Forces Joint Imagery Centre provided via by Robert
Langille) |
 |
| A "posed" Operations room scene from a 205 class steamer - Port
side forward. (It would be very unusual, even in the "heat of battle" exercises,
to have two Lieutenant-Commanders at the action plot table). A SPA-4 PPI
with the video input switching attachment is visible in the lower right
corner of the photo. (Photo # HS-60765 courtesy DND, Canadian
Forces Joint Imagery Centre provided via by Robert Langille) |
 |
| AN/SPG-34 fire control radar. In this demonstration photo, there are
a number of clues to suggest it was posed and taken at the old training
facility at Osborne Head. From the cap tally, the letters ONA are visible
(on the high res image only) so these are rates are from Stadacona. Fire
control operators would never operate while wearing #1 dress uniform. As
well, this is an older vintage of SPG-34. (Photo # DNS-24522 courtesy
DND, Canadian Forces Joint Imagery Centre provided via by Robert
Langille) |
 |
| 205 St. Laurent-class steamer Operations Room. This shot is from the
starboard side forward looking to Port quarter. The EWCR has its door open.
(Photo # E-73467 courtesy DND, Canadian Forces Joint Imagery Centre
provided via by Robert Langille) |
Ray White recalls an experience while at sea. "On the St. Laurent, in
addition to the Captain, we had Commodore O’Brien as Senior Officer and
lots of other officers. In our enlarged Radio 4 we had
some really cool equipment that came in very handy for, among others, the
Navigator, who was able to use our Rhode & Schwartz Time and Frequency
Standard to keep his chronometers correct, and we were also able to correlate
the American Loran 'C' with the Russian version on 105 kHz, thus obtaining
really good position information. The St. Laurent had a hangar just
astern of the command position, but we did not have a helicopter. All we
carried in there was our trusty and rusty old pusser jeep. The door
to the hangar wouldn't close so one of the Bosn’s got some pusser canvas
and made sort of curtain about four feet from the deck to the always open
door. When moving along at speed the canvas would flap quite a bit.
As we were traveling along near Estonia and Latvia we are always
chased by Russian and other Eastern Bloc ships, apparently trying to get
photographic evidence of what we were hiding in the hangar!!
Wouldn't they have been surprised to find our old rusty jeep all alone
in there. On that trip one of the East Bloc countries made a diplomatic
complaint that we had violated their territorial limits, and they were
right. The Commodore had ordered us to move in close to activate their
air defence circuits. Planes were all over us for awhile".
Contributors and Credits:
1) Robert Langille <ewcs(at)ewcs.ca>
2) Jim Brewer <snack.235(at)sympatico.ca>
3) Tom Fullerton
4) Ray White <legerwhite(at)rogers.com>
5) Steven Bradshaw <steve(at)malacat.ca>