Installation of communication equipment in Canadian ships - Appendix B

Installation of communication equipment in Canadian ships generally consisted of the following:

Destroyers   1 PV500HM, 1 PV500LM, 2 CM11, 2 FR12, 1 TBS, 1 HT11, 1 HF DF, 1 MF DF, 1 SRE, 1 Loud Hail

Frigates        1 PV500HM, 2 CM11, 1 FR12, 1 TBS, 1 HT11 (Group Leaders), 1 HF DF (Group Leaders), 1 MF DF, 1 SRE, 1 Loud Hail.

Corvettes     1 PV500HM, 1 CM11, 1 FR12, 1 TBS, 1 SRE, 1 MF DF, 1 Loud Hail.

Algerines     1 PV500HM, 2 CM11, 1 FR12, 1 TBS, 1 HT11 (Group Leaders), 1 SRE, 1 MF DF, 1 Loud Hail.

Bangors        1 PV500HM, 1 CM11, 1 FR12, 1 SRE, 1 MF DF, 1 Loud Hail.

Fairmiles     1 CM11.

A brief description of the foregoing equipment follows:

PV500HM       high frequency transmitter - 3 to 19 Mc/s

PV500LM       low frequency transmitter - 100 to 500 Kc/s

CM11              Transmitter/Receiver - 4 ranges:  375 - 13,500 Kc/s

FR12               Transmitter/Receiver - Receiver:  300 - 4200 Kc/s; Transmitter:  LF 375-500 Kc/s;  HF 1600-4500 Kc/s

TBS                 Transmitter/Receiver - 60 to 80 Mc/s

HT11               Inter-communication transmitter/receiver for HF DF ships, 550 - 3000 Kc/s

SRE                 Sound Reproducing Equipment (mainly for entertainment)

HF DF             for taking bearing of transmitting U-boats mainly

MF DF            for taking bearings of shore, ship, or aircraft stations

Loud Hail        for hailing other ships.  Two Loud Hailers existed:  the TE-129, and the TE-311B.  The latter’s output could be switched from a Hailing position to a Radio (entertainment) position.

Ships used various receivers such as: 

AR77:       540 - 31,00 Kc/s

HRO:         100 - 30,000 Kc/s

MSL5:       15 - 1775 Kc/s

SMR3:      97 - 30,000 Kc/s