Cobra MR F55 EU can't find ch37

[x25dave]

Hi, had an embarrassing moment, approaching a marina, and trying to call them on channel 37.
My radio goes from channel 28 straight to channel 60.
I can get all them ones below and above, but none between 28 - 60.


It has three settings USA. CAN. INT. I have put it on INT.

Can anyone assist please.

 

[pvb]

It doesn't have channel 37. Most marinas will respond if you call them on 80 or 16.

 

[NickRobinson]

I had this prob approaching Liverpool Marina- the Mersey is no place to read manuals!

Ch 37 is M1

Nick

 

[prv]

Ch 37 is M1

Yep - and M / M2 are UK-specific channels so depending on the route through which you bought the radio, it may not have been programmed to have them.

Pete

 

[pvb]

Ch 37 is M1

Doesn't matter what you call it, the Cobra doesn't have it.

 

[x25dave]

Can't believe that. It'll be on eBay next week!!

 

[Stork_III]

Can't believe that. It'll be on eBay next week!!

According to the manual Recreational channels can be programmed into channel maps, refer to dealer.

 

[x25dave]

Yes, a little too reactionary, perhaps I should contact Cobra for info.

 

[VicMallows]

I love my ancient SEALINE 2 ..... it can be programmed for ANY channel you choose with a few diodes

 

[VicS]

Doesn't matter what you call it, the Cobra doesn't have it.

If you buy one from TCS Chandlery it will have M1 and M2 according to the spec on their website http://www.tcschandlery.co.uk/9873/Cobra-Electronics-MR-F55EU-FIXED-DSC-RADIO.html

Likewise from Amazon

 

[VicS]

I love my ancient SEALINE 2 ..... it can be programmed for ANY channel you choose with a few diodes

How do I add M2 to mine ?

 

[pvb]

If you buy one from TCS Chandlery it will have M1 and M2 according to the spec on their website http://www.tcschandlery.co.uk/9873/Cobra-Electronics-MR-F55EU-FIXED-DSC-RADIO.html

Likewise from Amazon

Must be added by them, there's no mention of it in the manual.

 

[VicS]

Must be added by them, there's no mention of it in the manual.

The manual, at least the one in English that I found on line, IIRC refers to "recreational" channels and says they can be added by your dealer.
I guess if you buy one from a reputable UK chandler they are fitted as a matter of course. Be a bit peeved if you bought one and found it didnt have all the "usual" channels

 

[oldgit]

I love my ancient SEALINE 2 ..... it can be programmed for ANY channel you choose with a few diodes

Presume you have some sort of winch to get it on and off the boat.
Diodes on a matrixboard fine in Nelsons day when you had 12 channels !

 

[VicS]

Presume you have some sort of winch to get it on and off the boat.
Diodes on a matrixboard fine in Nelsons day when you had 12 channels !

It may be a bit heavier than the Cobra that is the subject of the thread but is under 2kg and that's no problem for a bit of kit that stays old board the whole time.

 

[Burnham Bob]

you sure its not hiding between the topmost numbered channel and the lowest? my Standrad Horizon has M1 and M2 (or N1 and N2 die to the led readout) if you scroll down from the lowest number before it starts again at the top

 

[Supine Being]

I can't remember if its labelled M1 or P1 on my Cobra, but its definitely on there.

 

[VicMallows]

How do I add M2 to mine ?

Vic, I'll send you the circuit. You will enjoy the challenge of working out the PLL multipliers. (can't remember if the circuit shows the crystal frequencies, but they are as usual marked on the cans). I assume your set has P1 programmed as Ch37, which is the clue you then need to work out the diode(s) needed for your chosen channels.

(There is an interesting function referred to in the manual which says the 'spare' position after P4 is an 'optional scan of the [4] private channels'. I would love to implement this if anyone knows how!).

Vic(M) ..... (will of course help more specifically if needed )

Edit: Never having desired M2, just looked it up. (161.425). Maybe that IS out of the easily possible range and it WAS a trick question!

 

[rob2]

The gybe about "only 12 channels" isn't so cutting nowadays. So many channels are not really of any practical use as they're dedicated to particular services!

Rob.