Frequency Hunting

Hiram1717

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Joined
Jun 23, 2023
Messages
26
Location
Florida
What is the best way to find frequencies on cruise ships. Most cruise ships are using DMR what’s the best way to find RX and TX frequencies .

If scanner is the only answer:
What’s the best to find frequencies for cruises on a scanner when using DMR.

What cheap scanner do you recommend?
 

ecps92

Member
Joined
Jul 8, 2002
Messages
14,801
Location
Taxachusetts
What is the best way to find frequencies on cruise ships. Most cruise ships are using DMR what’s the best way to find RX and TX frequencies .

If scanner is the only answer:
What’s the best to find frequencies for cruises on a scanner when using DMR.

What cheap scanner do you recommend?
Scroll to the bottom of this page and you will find many of the common (per various licensing authorities - world wide)
 

ecps92

Member
Joined
Jul 8, 2002
Messages
14,801
Location
Taxachusetts
What is the best way to find frequencies on cruise ships. Most cruise ships are using DMR what’s the best way to find RX and TX frequencies .

If scanner is the only answer:
What’s the best to find frequencies for cruises on a scanner when using DMR.

What cheap scanner do you recommend?
You can also review this two part article - Frequencies are still the same, just DMR vs Analog
 

BC_Scan

Member
Joined
Aug 26, 2006
Messages
732
Location
Vancouver BC
Most cruise ships are using DMR what’s the best way to find RX and TX frequencies
very very easy . they tend all to be 457 mhz Receive + 467 mhz Transmit
when a new ship I dont have comes to Vancouver I have two search banks set aside that only search 457-458 Mhz , then467-468, a very very narrow slice of the spectrum.
I also use close call which works as well
I generally always find them there
one exception was a small boat called ocean victory using 458. mhz Receive 468 mhz tx
it would appear that the cruise ship industry as a whole has adpoted 457+468 mhz as the go to bnad for on board ship comms
no such thing as cheap scanner really
SDR dongle cheapest that would yield results
 

ecps92

Member
Joined
Jul 8, 2002
Messages
14,801
Location
Taxachusetts
very very easy . they tend all to be 457 mhz Receive + 467 mhz Transmit
when a new ship I dont have comes to Vancouver I have two search banks set aside that only search 457-458 Mhz , then467-468, a very very narrow slice of the spectrum.
I also use close call which works as well
I generally always find them there
one exception was a small boat called ocean victory using 458. mhz Receive 468 mhz tx
it would appear that the cruise ship industry as a whole has adpoted 457+468 mhz as the go to bnad for on board ship comms
no such thing as cheap scanner really
SDR dongle cheapest that would yield results
I would add, 457 or 467 could be the repeater output, all depends on who programmed them.
If programmed per the rules/documents 457 should always be the repeater, but it is not always that way.

Also for the OP, if you strike out, don't rule out they are using VHF Marine or a VHF Repeater licensed in their home country (Found a few Canadian Ferries when in USA Dry Docks)
 

Computrguy

Member
Joined
Apr 22, 2018
Messages
237
Location
Full Time RVer traveling the US of A
Also something to consider, not all usage is DMR on a ship. I find some things like dining venues and pool lifeguards are not on DMR for Carnival and NCL. They are using simple analog.
I forget which ship I was on when I found this but it was recently and I did post it to the thread I was updating at the time. A little look though the threads in this forum will yield good info.
 
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