Cb Frequecneis Question ch 100+

[nyscan00]

question about CB Frequencies


I know the typical CB radio goes from ch 1-40 (26/27mhz)
but Ive heard people talk about CB channels like 100-200

What are the frequencies for these cahnnels? or are they referring to GMRS because I never heard of a CB that had that many channels unless it was a modification??

Any info on this would be great
Thanks

 

[LarrySC]

These are bootleg mods made to operate out of band. Some below ch-1 and some above ch-40. This has caused a stink over the past several years because some CB outlaws got into the lower end of the 10 meter ham band at 28MHz.

 

[INDY72]

Also with acsb models of 40 chans,.. you get the following: 1-40, 1-40 Low, 1-40 High
thus 120 chans of possible operation. So you could break it into 1-40 A,B,C

 

[Voyager]

Also with acsb models of 40 chans,.. you get the following: 1-40, 1-40 Low, 1-40 High
thus 120 chans of possible operation. So you could break it into 1-40 A,B,C

That's SSB models, milf, not ACSB. ACSB (or ACSSB) is only found on 220 MHz. I've always heard them say 'go to lower 30' (for CH 30 LSB) or 'go to 15 upper' for (CH 15 USB). Most likely, the 'freeband' is what is being talked about, like Larry said. The 'freeband' is typically from 27.41 MHz up - frequently going into the ham band above 28 MHz.

Joe M.

 

[INDY72]

Ahh TY for the correction.. I know mine has the SSB plus has some nifty toys.. Analog/D switch,.. Sounds,... Echo,.. Bump!, scan,.. WX,.... SWR meter,... and of course the dual ant feed,.. will not mention the amp lol..

 

[nyscan00]

ok what would the frequecnies be for the ch's above/below #1-40 ??

 

[Voyager]

ok what would the frequecnies be for the ch's above/below #1-40 ??

There probably is no set standard, but it should be close to "every 10 kHz is another channel". For CH 100, take the difference over the standard top end (60) and multiply by 10 kHz (600 kHz), and add it to CH 40 (27.405 MHz) to get the result (28.005 MHz). That likely won't be exact, but it should be around there (27.9 - 28.1 MHz). The standard band skips one channel every four between channels 1 and 23 (5 channels). Any moded units will likely do the same, so CH 100 may be 100 kHz (50 kHz per 'bank') higher than the above calculation would result (so, maybe CH 100 would be 28.105 MHz).

I don't think there is any set standard since it's an illegal mod made to existing radios, and the mod will vary depending on the model design. Some may start over at 27.415 MHz, while others may start at 27.455 MHz.

Joe M.

 

[SAR923]

It depends. If they are referring to SSB then they are same as the normal CB channels but on single side band so you won't be able to understand them (very well) without a single sideband receiver.

If they are pirate frequencies, they will be above and below the normal CB channels. I assume that channel 100 is somewhere above 27.405 mHz.

 

[INDY72]

Also one note... with CH 9 (which is still used for primarily emergency communications) You will rarely hear anyone say go 9 up or 9 down.. too much of a chance for mistakes lol.... some of the common ones used by truckers with moded radios are 21 High, 40 Low, 12 Hi h and Low,.. and to mess with a few minds 19 High/Low Your CB hobbyists and airwave jocks will run almost any combination of chans that they can find empty.... You may wish to look into seeing if there are any local CB clubs in your area...

Some of these include the Sunshine Radio Club in New Orleans, LA, the Jackson CB Wranglers in Jackson, MS, and the Canebreak Radio Rattlers in the Charleston, SC area.

 

[OntarioScannerNut]

If ya ever feel like doing some excellent dx'ng then the freeband is where you'd wanna go for sure.

Just from a plain jane Antron 99 I've been able to talk locally, about 2 hrs away, but have also, had the opp. to chat overseas to Portugal, that's the only time I remembered trying this out. And that was without any linears or anything.

Never had a freeband myself, but have seen them.

27.555 USB I think it is, used to be a popular DX Calling Frequency.

 

[nyscan00]

ok I found this link online that shows CB freq.
Does this include all the upper/ lower CB channels?

http://members.tripod.com/~cm1598/fr-freq.txt

Thanks

 

[loumaag]

Hmm, not sure about up Canada way, but CB operation in the 10Meter ham band can get pretty expensive down here. Take a look at this link and scroll to the bottom.

This has become of a special inerest of late, notice the dates envolved. Anytime you can get the FCC to act in 7 days, they are actually interested in the matter. :wink:

 

[Voyager]

ok I found this link online that shows CB freq.
Does this include all the upper/ lower CB channels?

http://members.tripod.com/~cm1598/fr-freq.txt

Thanks

The upper/lower channels are the same as the AM (standard) channels. The difference is the mode of operation (being USB or LSB), but all modes use the same base frequency.

Joe M.

 

[INDY72]

Yeah if you use illegally modified radios you can get in HOT water FAST. Thats why its safer to stick to using the legal SSB models

 

[hulka]

I forget the make but I had a "2510". It had a digital display with a VFO to scroll through the frequencies. I even came with a cheat sheet so you can find the channel you wanted to be on. I think it had ~ 500 channels. I can't remember the make of it though. It had USB & LSB and some other crazy stuff in it also. It might have even been a ham radio that I bought. I was told a CB but it was 10 years ago and I was big in to the CB thing till most of the people in my old neck of the woods started running 2500+ linears. Kind of killed it all. They would splash over every channel. I will say shooting skip on side band was a lot of fun. I talked to someone in Alaska from New Jersey, & some guy in Panama area with out a linear.

 

[Voyager]

I forget the make but I had a "2510". It had a digital display with a VFO to scroll through the frequencies.

Uniden (President) HR-2510? Yep, 10M ham radio. Illegal on the CB bands even without a 'linear' since it exceeds the maximum legal power output all by itself. I wouldn't go around admitting use on a public forum.

Joe M.

 

[richster]

Well this is my area of expertise. I used to "shoot skip" in "no man's land" back in the last "good" skip cycle peak in 1990-91. Back then there were no HR-2510's or Rangers. Extra channels were obtained by "tapping" the PLL chip in your radio. I tapped my Citizen SSB-M6 40 CH. SSB radio to go to 28.045 Mhz (channel 104), but anything past that the radio wouldn't occillate any more. No man's land is a slice of the spectrum between 27.405 Mhz (channel 40) and 28.000 Mhz (the start of the 10M band). My favorite place was triple nickle (27.555 Mhz) or channel 55. I talked to many places around the world there, and just on 4 watts!! or 25 watts SSB. All communications above channel 40 are usually sideband as well. Also having a five kilocycle slide was very beneficial. With this you could go to the "even side" which made it easier to talk with your contact. As far as legallity. Yes I suppose it is illegal, but I have never heard of anyone getting bothered unless you were running some serious power. So in other words, unless you were not making your neighbors toaster talk or harrassing the 10M guys, FCC or DOC left ya alone. There were too many "high banders" anyways, so cracking down was unrealistic. With the invention of the HR-2510 and the Ranger 2950, I suppose that band has exploded. I found it very peculiar that these 10M radio manufacturers made these radios with the ability to do the (11 Meter band) or CB, and the FCC allowed them to be made knowing full well CB'ers would be buying alot of these radios to talk in "No Man's Land". So extra channels has been seen more like "jay walking", Fed's and local law enforcement usually look the other way unless you're causing crap. Finally channels were designated by frequency number. For example 27.405 Mhz is Channel 40, so 27.555 Mhz would be channel 55, and so on..... As far as hearing people talking as high as channel 100-200, they would be well into the 10 Meter band. I can't for the life of me think of why or who they would talk to up there? Anything above channel 80 (27.805 Mhz) was Mexican anyways, and 28.000 Mhz and above was full of CW. Well that's my 2 cents nyscan00.

Regards,
Richster.

 

[hulka]

Well, no one is perfect. I was 18 and went to the local CB guy in town. He had it on display and I thought it looked cool. I was never told it was a HAM rig, just a high tech CB. It looked better than my $50.00 cobra. Like a lot of people say, "Only if I knew back then what I know now."

 

[w5gm]

I will back up some of the other guys on this thread. I would'nt go anywhere higher than 27.900. You run the risk of splattering all over hells creation... Splattering into 10 Meters which WILL get you in a whole world of hurt.

 

[remedy44]

Go and check out http://bigradios.com they dont play with 4 watts how about 70,000 + watts in there mobiles