troxrcxrrooc orrxxx 
Fish and i'ildlife Service 
Technological laboratory 
2725 Font lake ’boulevard 
i ' eat tie » sable ;t on 
February lt t 1941. 
to Cant. 
F. Tmftoiu 
This la to advise that the radiophone frequencies listed 
hereunder have been authorised for use, during the second ex- 
pedition of t h& Alas''. a Grab Investigation, with the following 
limitations: 
2616 fee - approved for communication between vessels and 
shore stations of tie Service only* 
2670 kc - approved for emergency eoBsanicatlos with the 
U. 3 . Coast Guard only. 
2738 kc «* all goverroaeat agencies authorized to use this 
frequency for communication with coastal harbor 
and go; oreinl ship stations only* 
fbo vessel "Dorothy" will operate tinder its regular call 
letters - FFTJO* 
The vessel "Champion* and "Looks" having no re:?uiar call 
letters have been granted the temporary use, during the period 
of the charter only, of the followin'* station identifications: 
Teasel "Champion* - lS¥3f. 
Vessel '♦Lochs® - Ess'Zl. 
The radiophone aboard your vessel is to he operated in strict 
conformance with the regulation® of the Federal Ccmuni cation 
Com! salon. Advisable precautions are: 
(1) Do not use transmitter while pass lag through Canadian 
■eaters • 
(2) Keep a couplet© radio log of all use of the transmitter* 
{3} Be sure to sign clear on every call regardless of whether 
contact is mad®. 
(4) Do not talk longer than five minutes on either 2670 or 
2738. 
Technologist in- Charge. 
