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
THe MDF-5 is listed in BRCN 213 (circa 1960) , the RCN's Materials Catalogue. MDF-5
Frequency range: 265 to 670 KHz
See http://www.jproc.ca/marconi/mdf5.htmlSPERRY LORAN MK 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. Looking for a photo. Contact: jerry.proc@sympatico.ca
AN/SPN-7
AN/SPN-7 is listed in BRCN 213 (circa 1960) , the RCN's Materials Catalogue. This is a Loran 'A" receiver.
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
