56 



All stations reported the signals loud, clear, and steady. 



The phone was used for intercommunication between patrol 

 vessels when being relieved, and very satisfactory results were ob- 

 tained, the maximum distance being approximately 250 miles. 



The S. S. Montclare reported copying the QST (CW.) of April 25 

 from a distance of approximately l.SOO miles. The signals were 

 reported loud and clear. 



FOURTH CRUISE, MAY 8-22, "MODOC" 



No difficulties were experienced with the transmitter during this 

 cruise. All traffic was routed via NBD (Bar Harbor), either direct 

 or relayed via the Tampa at Halifax. Considerable difficulty was 

 encountered in working NBD direct, due to this station's weak 

 signals, which were scarcely audible at times. 



The radio operator on the S. S. Coelleda reported cop^dng the QST 

 on 1,621 meters daily while crossing the Atlantic Ocean and also 

 while at Liverpool, England. 



Unusually heavy ice patrol traffic was handled during this cruise. 

 It is estimated that approximately 192,000 words were transmitted 

 and received. The hydrographic reports assumed large proportions, 

 one containing 369 words, and the average message containing 200 

 words. Radio transmitters were in constant operation 85 per cent 

 of the time during this cruise. 



A large amount of commercial traffic was handled through WCC^ 

 Chatham, Mass., which station reported the signals strong and clear 

 at all times. 



The CGR-1 short wave receiver was removed from the bridge 

 and installed in the chart room during the cruise. Remote control 

 was run from the T-1 transmitter on the bridge down to the chart 

 room and very satisfactory results were obtained. The Tampa at 

 Halifax was worked without difficulty. A schedule with IBQQ at 

 Mansfield, Mass., was maintained, handling about 30 messages. 

 All the Coast Guard destroyers and cutters off New York were 

 copied nightly. One Coast Guard destroyer (NIN) was plainly 

 heard by phone 45 minutes after daylight on May 21, the position 

 of the patrol vessel being in latitude 44° 47' N., longitude 48° 42' W. 



FIFTH CRUISE, MAY 22-JUNE 8, "TAMPA" 



The entire cruise was marked by heavy static and electrical dis- 

 turbances, causing some delay in transmission of traffic to NBD (Bar 

 Harbor) at times and on one occasion necessitating the evening 

 traffic being transmitted to NBD the following morning. All 

 traffic was routed to NBD via the Moduc at Halifax. 



During the evening of May 27 the contactor arm of the key rela\ 

 parted close to where it enters the shaft. All the traffic to NBD had 



