VHF Channel 90

[shumadine]

I would like to listen to some of the charter fishing captains when down at the Chesapeake Bay. Several have VHF radios that use channel 90. Anybody have any idea what that frequency would be ? I can't find it on any database. Thanks...

 

[morfis]

157.52500 / 162.12500

 

[dkostrey]

Marine Freqs

From the Wiki here ...

http://wiki.radioreference.com/index.php/Marine

 

[morfis]

From the Wiki here ...

I'd guess he checked there....and found that it misses a lot of standard channels...including Ch90

 

[OceanaRadio]

I'd guess he checked there....and found that it misses a lot of standard channels...including Ch90

And Channel 90 is what? 157.525 (undefined in FCC-search) is in Business (taxii/fire, etc)

Neither were in the marine band, and not part of any marine radio channel options.

Jack
Virginia Beach

 

[trainman111]

According to the coast guard and my marine radio (Atlantis 250) there is no Channel 90, so I'm not sure what they may have been refering to.

 

[morfis]

There is indeed a marine channel 90 used internationally...it looks like the USA marine channels exclude some of the ones the rest of the world use?

156.00000 156.00000 Common Marine Channel 00
156.02500 160.62500 Common Marine Channel 60
156.05000 160.65000 Common Marine Channel 01
156.07500 160.67500 Common Marine Channel 61
156.10000 160.70000 Common Marine Channel 02
156.12500 160.72500 Common Marine Channel 62
156.15000 160.75000 Common Marine Channel 03
156.17500 156.17500 Common Marine Channel 63
156.20000 160.80000 Common Marine Channel 04
156.22500 160.82500 Common Marine Channel 64
156.25000 160.85000 Common Marine Channel 05
156.27500 160.87500 Common Marine Channel 65
156.30000 156.30000 Common Marine Channel 06
156.32500 160.92500 Common Marine Channel 66
156.35000 160.95000 Common Marine Channel 07
156.37500 156.37500 Common Marine Channel 67
156.40000 156.40000 Common Marine Channel 08
156.42500 156.42500 Common Marine Channel 68
156.45000 156.45000 Common Marine Channel 09
156.47500 156.47500 Common Marine Channel 69
156.50000 156.50000 Common Marine Channel 10
156.52500 156.52500 Common Marine Channel 70
156.55000 156.55000 Common Marine Channel 11
156.57500 156.57500 Common Marine Channel 71
156.60000 156.60000 Common Marine Channel 12
156.62500 156.62500 Common Marine Channel 72
156.65000 156.65000 Common Marine Channel 13
156.67500 156.67500 Common Marine Channel 73
156.70000 156.70000 Common Marine Channel 14
156.72500 156.72500 Common Marine Channel 74
156.75000 156.75000 Common Marine Channel 15
156.77500 156.77500 Common Marine Channel 75
156.80000 156.80000 Common Marine Channel 16
156.82500 156.82500 Common Marine Channel 76
156.85000 156.85000 Common Marine Channel 17
156.87500 156.87500 Common Marine Channel 77
156.90000 161.50000 Common Marine Channel 18
156.92500 161.52500 Common Marine Channel 78
156.95000 161.55000 Common Marine Channel 19
156.97500 161.57500 Common Marine Channel 79
157.00000 161.60000 Common Marine Channel 20
157.02500 161.62500 Common Marine Channel 80
157.05000 161.65000 Common Marine Channel 21
157.07500 161.57500 Common Marine Channel 81
157.10000 161.70000 Common Marine Channel 22
157.12500 161.72500 Common Marine Channel 82
157.15000 161.75000 Common Marine Channel 23
157.17500 161.77500 Common Marine Channel 83
157.20000 161.80000 Common Marine Channel 24
157.22500 161.82500 Common Marine Channel 84
157.25000 161.85000 Common Marine Channel 25
157.27500 161.87500 Common Marine Channel 85
157.30000 161.90000 Common Marine Channel 26
157.32500 161.92500 Common Marine Channel 86
157.35000 161.95000 Common Marine Channel 27
157.37500 161.97500 Common Marine Channel 87
157.40000 162.00000 Common Marine Channel 28
157.42500 162.02500 Common Marine Channel 88
157.45000 162.05000 Common Marine Channel 29
157.47500 162.03500 Common Marine Channel 89
157.50000 162.10000 Common Marine Channel 30
157.52500 162.12500 Common Marine Channel 90
157.55000 162.15000 Common Marine Channel 31
157.57500 162.13500 Common Marine Channel 91
157.57500 162.23500 Common Marine Channel 93
157.60000 162.20000 Common Marine Channel 32
157.62500 162.22500 Common Marine Channel 92
157.65000 162.25000 Common Marine Channel 33
157.67500 162.23500 Common Marine Channel 93
157.70000 162.30000 Common Marine Channel 34
157.72500 162.32500 Common Marine Channel 94
157.75000 162.35000 Common Marine Channel 35
157.77500 162.37500 Common Marine Channel 95
157.80000 162.40000 Common Marine Channel 36
157.82500 162.42500 Common Marine Channel 96
157.85000 162.45000 Common Marine Channel 37
157.85000 157.85000 Common Marine Channel M1
157.87500 162.43500 Common Marine Channel 97
157.90000 162.50000 Common Marine Channel 38
157.92500 161.52500 Common Marine Channel 98
157.95000 162.55000 Common Marine Channel 39
157.97500 162.53500 Common Marine Channel 99
158.00000 162.60000 Common Marine Channel 40
158.02500 161.62500 Common Marine Channel 100
158.05000 162.65000 Common Marine Channel 41
158.07500 162.63500 Common Marine Channel 101
158.10000 162.70000 Common Marine Channel 42
158.12500 162.72500 Common Marine Channel 102
158.15000 162.75000 Common Marine Channel 43
158.17500 162.73500 Common Marine Channel 103
158.20000 162.80000 Common Marine Channel 44
158.22500 162.82500 Common Marine Channel 104
158.25000 162.85000 Common Marine Channel 45
158.27500 162.83500 Common Marine Channel 105
158.30000 162.90000 Common Marine Channel 46
158.32500 162.92500 Common Marine Channel 106
158.35000 162.95000 Common Marine Channel 47
158.37500 162.93500 Common Marine Channel 107
158.40000 163.00000 Common Marine Channel 48
158.42500 163.02500 Common Marine Channel 108
158.45000 163.05000 Common Marine Channel 49
158.47500 163.03500 Common Marine Channel 109
158.50000 163.10000 Common Marine Channel 50
158.55000 163.15000 Common Marine Channel 51
158.57500 163.13500 Common Marine Channel 111
158.60000 163.20000 Common Marine Channel 52
158.62500 163.02500 Common Marine Channel 110
158.62500 163.22500 Common Marine Channel 112
158.65000 163.25000 Common Marine Channel 53
158.67500 163.23500 Common Marine Channel 113
158.70000 163.30000 Common Marine Channel 54
158.72500 163.32500 Common Marine Channel 114
158.75000 163.35000 Common Marine Channel 55
158.77500 163.33500 Common Marine Channel 115
158.82500 163.42500 Common Marine Channel 116
160.60000 160.60000 Common Marine Coastguard
161.67500 161.67500 Common Marine Channel M2

Of course the VHF Channel 90 referred to might be a local name for just about anything...................

 

[trainman111]

It probably is a local channel. Not sure why the US excludes some of the frequencies. That's weird that my radio dopesn't have a channel 90 in it. The highest it goes on International, US, or CAN is Ch. 88.

 

[bpckty1]

Channel 90 could possibly be an out of band frequency, or one, that the "in crowd" knows, that is a regular marine frequency. If you don't have the chart, or know the conversion code for the day or week, you will miss the comms.

 

[hill]

VHF channel 90 is an international assignment and can't be used in U.S. waters. If vessels are using it in the Chesapeake Bay the operating illegal. I am not in the lower bay, but in the Northern Bay area and will have to put it in the scanner. I will be making a trip to the Ocean City, MD this weekend to visit my brother and will take a listen in that area. Readers of this Forum must remember that just because it is being used does not make it right. Many fishing vessels have used HF freqs outside of the HF-SSB Marine band in the past. Here is a link to the VHF-FM marine channels right from the USCG website.
http://www.navcen.uscg.gov/marcomms/vhf.htm
Hope this helps.

Larry
Baltimore, MD

 

[n4voxgill]

157.5225 is in the business band and licensed anywhere in the continental United States. This part of spectrum was in automotive band before consolidating services.

 

[kb2vxa]

I have from time to time heard sport fishers on the nearby railroad frequency assignments and a couple of encrypted portables on a "splinter" frequency between standard assignments. Obviously nothing is legal but these guys figure that unidentified transmissions from non fixed locations are difficult to locate so they get away with it. There's lots of talk about "intruders" or "pirates" or whatever on HF but you'll find them everywhere thinking "legal" is what you can get away with.

 

[Spec]

Chan 90 ?

In the Marine VHF world there are 3 basic setups in radios most often sold in the US / Can market today. The band plans are : US , Can , International. Depending where and how you set it up not all channels are the same. With the availability of new technology a new band plan has come about. This new band plan provides for splits between the present vhf marine channels. IT HAS NOT BEEN AUTHORIZED for use in the USA. There also is another possibility , among others, that these parties were using, as I do at times, radios that are capable of containing extra frequencies and in the programming “naming” them what they choose. I use marine radios of this type and am licensed to operate additional frequencies and in fact call them channel 90 etc. By the way I’m no where near you. At times we also use encryption . Another possibility is that commercial fisherman sometimes use HF radios and refer to some unauthorized HF frequencies as you have described. This often keeps the competition in the dark.. So many possibilities here….good luck and good monitoring.

Spec

 

[Gilligan]

I hope that freq list makes it into the Wiki. It seems like very useful information.

 

[NeFire242]

I have from time to time heard sport fishers on the nearby railroad frequency assignments and a couple of encrypted portables on a "splinter" frequency between standard assignments. Obviously nothing is legal but these guys figure that unidentified transmissions from non fixed locations are difficult to locate so they get away with it.

And they do get away with it, so its working.

Channel 90 could also be referring to xxx.90 MHz

 

[Cowthief]

Grab a VX-7R and set it on marine band, or just copy down the frequencies from the manual.
This is VHF-M, and goes up well past channel 200 and is indeed the de facto standard, you will find the quite a few "export" marine VHF radios have this exact channel lineup.

 

[novascotian]

I think the key question is whether or not there is really an international standard that goes beyond Channel 88, and by international I mean one approved by the ITU (International Telecommunications Union), or are these channels from 89 upwards something additional authorized by a single country or a few countries. I am assuming that within reason any country can designate what it wants... just like in the US many of the international marine frequencies are assigned to the railroad service. The long list posted here is interesting but where did it come from. Maybe it is the standard in Britain or somewhere, or just wishful thinking from a radio manufacturer but I doubt it is part of the general international allocation.

At the other end I dont think there is an internationally authorized Channel 00 and would be interested to hear if marine xcvrs sold legitimately in North America now have that on them. I know that in Canada that frequency 156.00 is authorized to the Canadian Coast Guard but I have been assuming that this was a business or land mobile frequency assigned because it was adjacent to the the real marine band.

 

[ecps92]

US Channels go to Ch.88

Yes, the International channels DO get used in the US of A and Canada, but should not be used, but then there is no enforcement unless a complaint is filed.

There was a proposal for the International [Not in the US of A or Canada] to change the VHF Marine to allow 12.5 Khz Splinters, which is where we get some of the 200 Series channels MARITIME VHF NARROWBAND CHANNELS - 12.5 KHZ

There is also on that same page a list of 6.25 channels.

Yes, some of the older and some new Marine Radios contain PRIVATE Channels , but based on what I have seen of those channel plans, they get into the RailRoad and Federal Frequencies which is ILLEGAL

The RR WIKI is for the LEGAL channels at this time... I have not come across any real users on the 200/300 channels as yet, which is why they are not in the RR WIKI

Grab a VX-7R and set it on marine band, or just copy down the frequencies from the manual.
This is VHF-M, and goes up well past channel 200 and is indeed the de facto standard, you will find the quite a few "export" marine VHF radios have this exact channel lineup.

 

[K9WG]

WOW - Talk about resurrecting a long dead thread .......

 

[radioman2001]

Yes it is, but you can find users on the old Marine Operator frequency splinters. Apparently if the licensee has both side of the splinter, it's his to use.