NAVIGATION
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DAU

The DAU HFDF  is listed in BRCN 213 (circa 1960) , the RCN's Materials Catalogue.
Frequency range 1.5 To 30 MHz
See http://www.jproc.ca/rrp/dau.html
 

MDF-5

THe MDF-5 is listed in BRCN 213 (circa 1960) , the RCN's Materials Catalogue.
Frequency range: 265 to 670 KHz
See   http://www.jproc.ca/marconi/mdf5.html

SPERRY LORAN MK 2 Mod 2

This is a Loran 'A" receiver produced by  Sperry. A revision date of 1953  is indicated on a  device schemnatic. There is no other info available at this time. 

AN/SPN-7

AN/SPN-7 is listed in BRCN 213 (circa 1960) , the RCN's Materials Catalogue.  This is a Loran 'A" receiver.

sari/spn7.jpg
AN/SPN-7 system (Courtesy USN) 

AN/UPN-7

AN/UPN-7 is listed in BRCN 213 (circa 1960) , the RCN's Materials Catalogue. This is a radar beacon whih provides range and azimuth information to interrogating airbone equipment. .  

TX frequency: 2820 MHz +/- 1 MHz
Rx frequency : 2850 to 2910 MHz
Peak output power: 1 KW
INpit power: 115 VAC 60 Hz 300 watts
Manufacturer: Melpar, Alexandria VA.

Click here for UPN-7/RT186 system image . (Courtesy RCN)
Click here for UPN-7/AT244 antenna image. (Courtesy RCN)

AN/URD-4

AN/URD-4 is listed in BRCN 213 (circa 1960) , the RCN's Materials Catalogue.  This is a crystal controlled direction finder which operates in the 225.0 t o 399.9 Mhz band in fixed chmnels spaced 0.1 MHz.

Click here for URD-4 teechnical info.



Contributors and Credits:

1) SPN 7 http://www.virhistory.com/navy/manuals/10794c/10794c-09.pdf
2) URD-4  http://www.navy-radio.com/manuals/94200/94200_1_05-1.pdf
 

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Apr 6/17