HFU HF Underground

Loggings => 10/11 meters => Topic started by: R4002 on October 19, 2021, 1932 UTC

Title: FM CB Channels / Frequencies 11 Meter US FM Calling Channels
Post by: R4002 on October 19, 2021, 1932 UTC
Now that FM mode is legal in the USA for CB purposes.  Is FM CB legal in the USA?  Yes, it is. 

I fully support designating in-band and out-of-band calling channels.  26.805 FM and 27.600 FM.  Legal CB Channels 27 FM, 29 FM, 30 FM and 31 FM.  27.600 MHz FM is right next to UK FM CB Channel 1 - 27.601 FM or 27.60125 MHz FM. 

26.805 MHz FM is already in use, as is 27.600 MHz FM. 

So 26.805 FM and 27.600 FM.  In-band CB channels 27, 29 and 31 - 27.275 MHz FM, 27.295 MHz FM and 27.315 MHz FM. 

FM CB Working Channels

26.805 MHz FM 26.805 FM 26805 FM - The original 26 MHz freeband 11m FM calling channel (USA)
27.295 MHz - 27.295 FM - CB Channel 29 FM - FM CB Radio Trucker Channel
27.275 MHz - 27.275 FM - CB Channel 27 FM - USA FM CB Radio Working Channel
27.315 MHz - 27.315 FM - CB Channel 31 FM - FM CB Radio Calling and Working Channel
27.305 MHz - 27.305 FM - CB Channel 30 FM - FM CB Radio Calling and Working Channel
27.600 MHz FM 27.600 FM 27600 FM - 11m freeband CB FM Calling 27.6 MHz FM 27.600 FM
27.650 MHz FM 27.650 FM 27650 FM - 11m freeband CB FM Calling 27.65 MHz FM 27.650 FM
27.575 MHz FM 27.575 FM 27575 FM - 11m freeband CB FM Calling 27.575 MHz FM 27.575 FM


Note:  Channel 27 (27.275 MHz) is used for SSB calling in the UK, specifically 27.275 USB (CB Channel 27 USB). 

European FM CB DX channels are


27.305 MHz FM 27.305 FM - CB Channel 30 FM
27.315 MHz FM 27.315 FM - CB Channel 31 FM
26.565 MHz FM 26.565 FM - German 80 Channel CB Channel 41
27.601 MHz FM 27.601 FM 27.60125 MHz FM 27.60125 FM - UK FM CB Channel 1 - will work with 27.600 FM!
27.781 MHz FM 27.781 FM 27.78125 MHz FM 27.78125 FM - UK FM CB Channel 19
27.971 MHz FM 27.971 FM 27.97125 MHz FM 27.97125 FM - UK FM CB Channel 38
27.981 MHz FM 27.981 FM 27.98125 MHz FM 27.98125 FM - UK FM CB Channel 39
27.991 MHz FM 27.991 FM 27.99125 MHz FM 27.99125 FM - UK FM CB Channel 40
27.125 MHz FM 27.125 FM - also used for AM calling in Europe CB Channel 14





Title: Re: FM CB Channels / Frequencies 11 Meter US FM Calling Channels
Post by: Elf36 on October 19, 2021, 2058 UTC
I would have never even thought about trying FM between 26 - 28 Mhz, had you not posted those freqs. I wouldn't say it's better than SSB, but hey it's something new and it works OR, ID and AZ on FM made me a believer. With good conditions anyway.
Title: Re: FM CB Channels / Frequencies 11 Meter US FM Calling Channels
Post by: R4002 on October 20, 2021, 1012 UTC
I would have never even thought about trying FM between 26 - 28 Mhz, had you not posted those freqs. I wouldn't say it's better than SSB, but hey it's something new and it works OR, ID and AZ on FM made me a believer. With good conditions anyway.

With good conditions it's a winner.  I think 27.600 MHz FM and 27.650 MHz FM are easy enough to remember, plus there's already a group of guys using 26.805 MHz FM.

Another op I know here in Virginia heard a guy in Texas running FM on 27.285 MHz yesterday during the tail end of the band opening...that's right, FM on CB channel 28!
Title: Re: FM CB Channels / Frequencies 11 Meter US FM Calling Channels
Post by: R4002 on October 20, 2021, 1453 UTC
FM activity on 26.805 MHz right now (1453 UTC)
Title: Re: FM CB Channels / Frequencies 11 Meter US FM Calling Channels
Post by: ChrisSmolinski on October 20, 2021, 1457 UTC
1456 26805 OM in Texas, good signal
Title: Re: FM CB Channels / Frequencies 11 Meter US FM Calling Channels
Post by: R4002 on October 20, 2021, 1516 UTC
1456 26805 OM in Texas, good signal

27255 (Channel 23 - 27.255 MHz) is 26.805 MHz up one band - I've noticed several FM voice transmissions on 27.255 MHz (mixing in with the AM voice transmissions and data bursts now that the band is open).

Channel 23 up one band is 27.705 - wouldn't surprise me if we started noticing FM activity on 26.805 MHz, 27.255 MHz and 27.705 MHz.

I still think designating channels 27 27.275 MHz for FM CB use as well as channel 31 27.315 MHz FM for FM CB use makes more sense than using 27.255 (channel 23). 

Title: Re: FM CB Channels / Frequencies 11 Meter US FM Calling Channels
Post by: Elf36 on October 20, 2021, 1907 UTC
I was thinking the other day about how AM/FM - CB/Export/Free band radios have been around for a long time. Particularly brands such as Galaxy, Mirage among others. No one ever talked about using FM though. I guess they just bought them because the radios sounded better etc. I never understood spending that kind of money for a radio without sideband. Just my opinion. Was FM more popular in other countries between 25 - 27.999 Mhz ? Years ago when I was heavy into that frequency range, I would have never even thought about it.
Title: Re: FM CB Channels / Frequencies 11 Meter US FM Calling Channels
Post by: R4002 on October 21, 2021, 1250 UTC
I was thinking the other day about how AM/FM - CB/Export/Free band radios have been around for a long time. Particularly brands such as Galaxy, Mirage among others. No one ever talked about using FM though. I guess they just bought them because the radios sounded better etc. I never understood spending that kind of money for a radio without sideband. Just my opinion. Was FM more popular in other countries between 25 - 27.999 Mhz ? Years ago when I was heavy into that frequency range, I would have never even thought about it.

Outside of the Americas and Australia/New Zealand, almost everywhere else that has a CB band allows use of FM.  Some countries allow only FM (for a long time the UK only permitted FM...they only recently legalized AM and SSB on the European standard CEPT 40 channels - the same channel plan as the USA channels or the "FCC CB channels" - often called "mid band CB").  The 40 UK-only 27/81 channels - UK FM CB 27.60125 MHz - 27.99125 MHz in 10 kHz steps - is still, and will probably remain FM only.

The German, Hungarian, Czech, etc. "auxiliary" channels (26.565 MHz - 26.955 MHz in 10 kHz steps) are also FM mode only.  The European standard CB band is the same as the US CB band but is FM only.  Many countries permit use of AM and SSB as well as FM...now that the US permits FM it has come full circle.

As far as the AM/FM exports go, I agree.  Those radios have had FM mode since the 1980s, which makes sense if you're using them in Europe you'd need FM.  But until now, I'm sure 99% of the folks using those radios never touched the mode switch (unless its one of the more expensive AM/FM/SSB export rigs).  I know some of the exports sold are actually AM mode only but the vast majority of them are AM/FM.  I think people bought them more because they have additional channels and higher power output instead of because they have FM mode.

Now people might buy them for all those reasons plus the fact that they have FM mode as well.  I've found at least one guy selling FM boards to add to your AM only 40-channel CB rig as a modification to turn your 40 channel AM CB radio into a 40 channel AM and 40 channel FM CB radio. 

Title: Re: FM CB Channels / Frequencies 11 Meter US FM Calling Channels
Post by: Elf36 on October 21, 2021, 1453 UTC
Yes. I imagine the extra channels was a big factor.
Title: Re: FM CB Channels / Frequencies 11 Meter US FM Calling Channels
Post by: R4002 on October 21, 2021, 1650 UTC
The prototypical AM/FM export rigs - those made by Ranger/RCI - including the Superstar 3000, Connex 3300 series, Mirage MX36HP and similar, Galaxy DX29, DX33, DX44, DX55 series, DX66, DX66V2, DX66V3, General Lee, General HP40W, Superstar 121, Connex Deer Hunter, Connex Coyote Hunter, etc. etc. were/all AM/FM only.  The vast majority of those rigs cover the same 6-band A-B-C-D-E-F selector + 40 channel selector channel plan (frequency coverage 25.615 MHz to 28.305 MHz, with Band D being the legal CB band). 

There are some variants on that, including rigs like the Superstar 121 (which simply has a 3 position LOW/MID/HIGH band switch - with the legal CB band being MID band, coverage 26.515-27.855 MHz) and the obviously geared towards the hunting truck guys radios like the Connex Deer Hunter (3 bands, but coverage is 26.065-27.405 MHz and the band select is labeled B/C/D instead) or the Connex Coyote Hunter (4 bands, coverage 25.615-27.405 MHz - A/B/C/D bands).  I've talked to several hunters who use rigs like the Galaxy DX66, Connex 3300, Superstar 3000, etc. and they all use/used the lower bands (so bands A/B/C - 25.615-26.955 MHz), use AM mode and run their radios with amplifiers. 

Many hunting clubs are migrating to licensed business radio + export CB equipment (at least in my area).  So the standard hunting truck has two communications antennas - a CB antenna and (usually) a VHF high band antenna.  Most of them use hunting dogs with GPS radio collars (and the radio collars use the MURS frequencies).  Hunting outfitters sell VHF mag mount antennas to extend the range of the GPS dog collar's companion receiver so it is not uncommon to see hunting trucks with a CB antenna and 2, 3 or even 4 VHF antennas.  Often the hunters will use export CB rigs to communicate while their dogs track (and they watch their dogs' GPS signals on the receivers in their trucks).  Many guys, especially in the more rural areas, also use the VHF marine band in addition to export CB radios.  The "standard" setup is often an export rig (with at least access to the "lowers" or "low channels", an amplifier and additional VHF gear.  I've seen local hunting trucks with Texas Star DX350 DX500 or DX667 and RM Italy KL503s and other amplifiers so output power on 11m is pushing way past 100 watts. 

Of course, they're still using AM mode...even though almost all their radios have FM capability.  It seems like AM is used for simplicity's sake (backward compatibility with guys who have regular "street legal" 40 channel CB rigs and other CBers...)

That might be changing now too though...

Title: Re: FM CB Channels / Frequencies 11 Meter US FM Calling Channels
Post by: R4002 on October 26, 2021, 1558 UTC
Hearing South Texas, California and other stations right now - 1556 UTC anyway on 26805 FM - 26.805 MHz FM.  Strong station in TX talking about having to QSY from 27.555 USB and 27.385 LSB due to heavy QRM.  Very good signals at points.

FM is alive and well! 
Title: Re: FM CB Channels / Frequencies 11 Meter US FM Calling Channels
Post by: Exo on October 28, 2021, 0035 UTC
There's a lot of truckers using Channel 29 FM 27295 kHz.
Title: Re: FM CB Channels / Frequencies 11 Meter US FM Calling Channels
Post by: R4002 on October 28, 2021, 0042 UTC
There's a lot of truckers using Channel 29 FM 27295 kHz.

Have they been using FM on Channel 29 for a while now?  Or is CB channel 29 FM a new thing like 26.805 MHz FM? 

I kinda like it - CB Channel 19 AM, Channel 29 FM.  Makes sense to use 27.295 MHz (channels 27 and 31 also make sense - in-between the "big radio" channels 26/28 27.265 MHz AM and 27.285 MHz AM) for FM CB. 

Glad to see the surprisingly rapid adoption of FM. Since there's a vast installed equipment base capable of FM mode already out "in the field" the switchover from AM/SSB to AM/FM/SSB CB radio / 11 meters is already happening. 

For short range comms, FM provides superior audio quality and rejection of noise/static.  When dealing with weaker signals, AM has some advantages but SSB is the obvious winner in those situations.

I had included 27.315 FM CB channel 31 - 27.315 MHz FM as the FM CB calling channel since CB channel 31 FM is one of the European in-band FM calling channels, I would call it the European version of 27.385 LSB channel 38 LSB but for FM mode specifically and for calling specifically. FM is the "default" mode for CB in many European countries so the situation is reversed. 

In the UK, for example, AM has only been legal on the FCC 40 CB channels or mid band CB or CEPT/EU standard 26.965-27.405 MHz band for the past 10-15 years.  SSB was legalized even later.  On the UK specific UK FM CB 27/81 channels 27.60125 MHz - 27.99125 MHz, FM is the only mode permitted and that probably won't change. 

Most European countries permit AM on the standard 40 CB channels in addition to FM (and most of those allow SSB as well) but this is somewhat recent of a development.  Now basically all CB rigs sold in Europe are AM/FM at least.  In many ways, the FCC legalizing FM on CB is sort of things coming "full circle".  AM will still be the standard mode for US CB radio - SSB and FM are now the extra-feature modes but I can see FM-capable FCC approved CB equipment entering the US market rapidly.
Title: Re: FM CB Channels / Frequencies 11 Meter US FM Calling Channels
Post by: Exo on October 28, 2021, 0122 UTC
It appears from their chatter that some truckers may be trying to claim CB Channel 29 as their new "trucker FM channel".
Perhaps that's just local to the west coast.
Also heard weak signals, distinctively FM activity, on 27295.0 when the skip was in to the plains states earlier today.


There's a lot of truckers using Channel 29 FM 27295 kHz.

Have they been using FM on Channel 29 for a while now?  Or is CB channel 29 FM a new thing like 26.805 MHz FM? 

I kinda like it - CB Channel 19 AM, Channel 29 FM.  Makes sense to use 27.295 MHz (channels 27 and 31 also make sense - in-between the "big radio" channels 26/28 27.265 MHz AM and 27.285 MHz AM) for FM CB. 

Glad to see the surprisingly rapid adoption of FM. Since there's a vast installed equipment base capable of FM mode already out "in the field" the switchover from AM/SSB to AM/FM/SSB CB radio / 11 meters is already happening. 

For short range comms, FM provides superior audio quality and rejection of noise/static.  When dealing with weaker signals, AM has some advantages but SSB is the obvious winner in those situations.

I had included 27.315 FM CB channel 31 - 27.315 MHz FM as the FM CB calling channel since CB channel 31 FM is one of the European in-band FM calling channels, I would call it the European version of 27.385 LSB channel 38 LSB but for FM mode specifically and for calling specifically. FM is the "default" mode for CB in many European countries so the situation is reversed. 

In the UK, for example, AM has only been legal on the FCC 40 CB channels or mid band CB or CEPT/EU standard 26.965-27.405 MHz band for the past 10-15 years.  SSB was legalized even later.  On the UK specific UK FM CB 27/81 channels 27.60125 MHz - 27.99125 MHz, FM is the only mode permitted and that probably won't change. 

Most European countries permit AM on the standard 40 CB channels in addition to FM (and most of those allow SSB as well) but this is somewhat recent of a development.  Now basically all CB rigs sold in Europe are AM/FM at least.  In many ways, the FCC legalizing FM on CB is sort of things coming "full circle".  AM will still be the standard mode for US CB radio - SSB and FM are now the extra-feature modes but I can see FM-capable FCC approved CB equipment entering the US market rapidly.
Title: Re: FM CB Channels / Frequencies 11 Meter US FM Calling Channels
Post by: R4002 on October 28, 2021, 1144 UTC
It appears from their chatter that some truckers may be trying to claim CB Channel 29 as their new "trucker FM channel".
Perhaps that's just local to the west coast.
Also heard weak signals, distinctively FM activity, on 27295.0 when the skip was in to the plains states earlier today.


That makes sense though.  Do they still use channel 17 and channel 21 on the West Coast in addition to 19?  Here on the East Coast its 19 but I could see Channel 29 FM as the trucker FM channel being adopted nationwide relatively quickly. 

Goes to show how many trucks are equipped with export rigs with AM and FM capability.  They've likely just never had a reason to flip that mode switch from AM to FM.  Looking at pictures of the Connex 3300, General Lee, General HP40W (a General Lee with an amplifier on the bottom), Connex CX33HPC1, the Stryker radios, the Superstar 3000, Superstar 121, most of the Galaxy rigs, etc. - most of them have AM/FM/PA as a three-position knob or AM/FM switch as a two-position switch on the front panel.  These guys have had FM capability for a while.

By the way, happy FM is legal on CB day (October 28th, 2021).  See: https://www.govinfo.gov/content/pkg/FR-2021-09-28/pdf/2021-19399.pdf   

Changes effective October 28, 2021.  FM emission type F3E is now permitted on the CB Radio Service in the United States.  47 CFR 95.971: 

(a) Permitted emission types. CBRS
transmitter types must transmit AM
voice emission type A3E or SSB voice
emission types J3E, R3E or H3E, and
may also transmit FM voice emission
type F3E.

Maximum bandwidth: 8 kHz
Maximum carrier power: 4 Watts FM
FM deviation shall not exceed +/- 2 kHz 2kHz FM deviation

8K00A3E emission designator for AM voice
8K00F3E emission designator for FM voice
4K00J3E 4K00H3E 4K00R3E emission designators for SSB voice

FM CB radio is now legal!  AM continues to be the standard mode for CB radio in the USA, FM and SSB are optional modes. 

I just updated the first post in this thread to reflect the use of CB channel 29 FM 27.295 MHz FM 27.295 FM as the trucker FM CB channel.
Title: Re: FM CB Channels / Frequencies 11 Meter US FM Calling Channels
Post by: R4002 on October 28, 2021, 1529 UTC
At 1529 UTC, some weak FM activity on 27.570 MHz
Title: Re: FM CB Channels / Frequencies 11 Meter US FM Calling Channels
Post by: Exo on October 29, 2021, 0027 UTC
Channel 19 AM on the West Coast has remained in active use as a trucker and highway information channel since about 1976.
Prior to that, Channel 10 AM was the ad hoc nationwide trucker channel, but some regional trucker channels (such as 17 AM and 21 AM) also existed then. 

Channel 17 AM started as one of those regional trucker channels in California.
Then 17 AM became very active up and down the coast around 1978 during the intense skip of that roaring sunspot cycle.
Eventually, around 1996 during the low point in the sunspot cycles, most truckers in California began keeping their dial locked on 19 AM instead of switching to 17 AM when they were on Interstate I-5.
17 AM eventually stopped being a trucker channel at all, and devolved into a calling and working channel for the locals in many California towns and cities.

The addition of FM to the new FCC rules will probably cause another evolution in the use of FM for truckers and local information.

The growing use of Channel 29 as an FM Trucker Channel looks eerily similar to the way previous trucker channels evolved.

It appears from their chatter that some truckers may be trying to claim CB Channel 29 as their new "trucker FM channel".
Perhaps that's just local to the west coast.
Also heard weak signals, distinctively FM activity, on 27295.0 when the skip was in to the plains states earlier today.


That makes sense though.  Do they still use channel 17 and channel 21 on the West Coast in addition to 19?  Here on the East Coast its 19 but I could see Channel 29 FM as the trucker FM channel being adopted nationwide relatively quickly. 

Goes to show how many trucks are equipped with export rigs with AM and FM capability.   

I just updated the first post in this thread to reflect the use of CB channel 29 FM 27.295 MHz FM 27.295 FM as the trucker FM CB channel.
Title: Re: FM CB Channels / Frequencies 11 Meter US FM Calling Channels
Post by: R4002 on October 29, 2021, 1331 UTC
Channel 19 AM on the West Coast has remained in active use as a trucker and highway information channel since about 1976.
Prior to that, Channel 10 AM was the ad hoc nationwide trucker channel, but some regional trucker channels (such as 17 AM and 21 AM) also existed then. 

Channel 17 AM started as one of those regional trucker channels in California.
Then 17 AM became very active up and down the coast around 1978 during the intense skip of that roaring sunspot cycle.
Eventually, around 1996 during the low point in the sunspot cycles, most truckers in California began keeping their dial locked on 19 AM instead of switching to 17 AM when they were on Interstate I-5.
17 AM eventually stopped being a trucker channel at all, and devolved into a calling and working channel for the locals in many California towns and cities.

The addition of FM to the new FCC rules will probably cause another evolution in the use of FM for truckers and local information.

The growing use of Channel 29 as an FM Trucker Channel looks eerily similar to the way previous trucker channels evolved.



Considering how many truckers seem to already have FM-capable radios installed I can definitely see your point.

I know it's not a 1-for-1 comparison but in Russia they have 27.135 MHz AM (Channel 15AM, C15AM or D15AM) as the AM road/highway/trucker channel and 27.185 MHz FM (Channel 19 FM, C19FM or D19FM) as the FM road/highway/trucker channel.  27.635 MHz FM is also used as a highway advisory channel or road channel (D19FM or E19FM) in some areas.  In larger cities, truckers use additional channels (mostly in FM mode) but Channels 15 and 19 seem to be the main channels.  Rigs designed for the Russian market have Channel 15 switches like most rigs have a Channel 9 / Channel 19 / NORM switch (or just a Channel 9 switch). 

Maybe something similar will happen here.  FM does make more sense for local short-range communications, which is what channel 19 is used for now.  Maybe 19 will eventually switch to FM and another channel will become the AM channel. 

I remember reading about the 23-channel days, back when channel 9 was the emergency channel, channel 10 was the road channel/trucker channel and channel 11 was the calling channel.  Channel 11 has remained the calling channel in many respects.  I believe the switch from 10 to 19 was, at least in part, to reduce adjacent-channel interference on channel 9 and channel 11 from heavy traffic on channel 10. 

We might end up taking a page out of the European or Russian CB book and include the mode in the channel designator - CB channel 29 FM, CB channel 19 AM, CB channel 21 AM, CB channel 31 FM, etc.

Channel 1 -
Channel 2 -
Channel 3 -
Channel 4 - this is apparently used by 4x4 groups, Jeep clubs, etc. - see also: channel 16 - AM mode
Channel 5 - heavily used by Latin American stations - AM mode
Channel 6 - we already know what channel 6 is...
Channel 7 - often similar to Channel 5, although when the band is closed its used locally - AM mode
Channel 8 -
Channel 9 - still the emergency channel, in theory, but you'll have better luck on 19. Latin American calling channel - AM mode
Channel 10 -
Channel 11 - calling channel - AM mode
Channel 12 -
Channel 13 -
Channel 14 - AM mode channel, used locally - AM mode
Channel 15 - Often also used as an AM DX channel
Channel 16 - this is apparently used by 4x4 groups, Jeep clubs, etc. - see also: channel 4 - AM mode
Channel 17 - AM DX channel, calling channel - AM mode
Channel 18
Channel 19 - road channel - highway channel - trucker channel - AM mode
Channel 20 - "testing channel" - used for DX during band openings - AM mode (for now?)
Channel 21 -
Channel 22 - used locally (around me anyway) AM mode
Channel 23 -
Channel 24 -
Channel 25 -
Channel 26 - AM DX calling channel - AM mode
Channel 27
Channel 28 - AM DX calling channel - AM mode
Channel 29 - trucker FM channel - CB channel 29 FM 27.295 MHz FM mode
Channel 30
Channel 31
Channel 32
Channel 33
Channel 34
Channel 35 - sometimes used for SSB
Channel 36 - often used for SSB, or as a local channel
Channel 37 - often used for SSB
Channel 38 - SSB calling - 27.385 MHz LSB 27.385 LSB
Channel 39 - often used for SSB
Channel 40 - AM channel, sometimes used for SSB operations as well
Title: Re: FM CB Channels / Frequencies 11 Meter US FM Calling Channels
Post by: Exo on April 11, 2022, 0655 UTC
Lately, I've been hearing more truckers using FM on Channel 24 (27235 kHz) and none on Channel 29.
Maybe all the bleedover from 28 AM made them find the new channel.
Title: Re: FM CB Channels / Frequencies 11 Meter US FM Calling Channels
Post by: VE3MOP on June 01, 2022, 1752 UTC
Greetings to all. Please feel free to check out "FM Worldwide DX" on Facebook operating at 27.235 MHz citizens band Channel 24 where all amateurs, freebanders, cb'ers & swl's are always welcome. 73
Title: Re: FM CB Channels / Frequencies 11 Meter US FM Calling Channels
Post by: Elf36 on June 01, 2022, 1916 UTC
I'm glad you brought this up. I had forgotten how much fun I had making FM contacts on 27 Mhz when there was a band opening a few months back. That was the first time I tried running FM, other than maybe some locals, just trying to see how it worked 5 miles or so apart. I was able to work several station on the west coast. Ill check today when I get home. Hopefully conditions will be as good as they were yesterday. I'll keep you posted of any contacts.
Title: Re: FM CB Channels / Frequencies 11 Meter US FM Calling Channels
Post by: BOOKS on August 06, 2022, 1601 UTC
Just my President Randy AM/FM walkie, I do not see 26,805 on the dial, so I got ripped off!!!
Title: Re: FM CB Channels / Frequencies 11 Meter US FM Calling Channels
Post by: Pigmeat on August 10, 2022, 1326 UTC
When I was into CB back in the early 70's, 17 and 21 were the local BS'ing channels while 6 was the same as it is now. Remember, we had an extra watt of power so talking worldwide in Hi-fi AM was a breeze. Then Satan's Sideband cluttered the spectrum up, and the oil embargo and the national 55 mph speed limit opened the CB band up to a pack of idiots ruining it for everyone except pimps and lot lizards.

Now, can I use my old Palomar linear amp in FM? 
Title: Re: FM CB Channels / Frequencies 11 Meter US FM Calling Channels
Post by: VE3MOP on January 22, 2023, 1951 UTC
"FM Worldwide DX" has nearly 5000 Facebook members and is really hopping now at 26.900 MHz
Title: Re: FM CB Channels / Frequencies 11 Meter US FM Calling Channels
Post by: R4002 on January 26, 2023, 1643 UTC
26.900 MHz is home to paging systems in Europe, and the frequency is often busy with full-scale POCSAG signals.

I know 26.805 MHz FM is quite popular.  26.905 MHz FM would be a decent choice too.  I've seen some evidence that 27.605 MHz FM and 27.805 MHz FM are both active in the USA.

Today I monitored activity on CB channel 29 FM - 27.295 MHz FM and the other day, in addition to wall-to-wall activity on the UK FM CB channels, strong FM activity (from Europe and the UK) on 27.125 MHz FM (CB Channel 14 FM). 
Title: Re: FM CB Channels / Frequencies 11 Meter US FM Calling Channels
Post by: R4002 on February 05, 2023, 1355 UTC

Noted US stations running FM on:

26805 FM 26.805 MHz FM - no surprise there
27605 FM 27.605 MHz FM - also not a surprise
27805 FM 27.805 MHz FM - this seems to be a new one.

German stations heard running FM on 27.295 MHz FM CB Channel 29 FM.  I know US truckers have adopted this frequency for FM use, along with 26.845 MHz FM and 27.745 MHz FM.  Of course, Channel 30 FM and Channel 31 FM are also popular.

26.900 MHz and 26.950 MHz have both been home to lots and lots of paging activity recently.  26.905 MHz FM though, that might be a better call.  Same with some other frequencies in the 26.805 MHz to 26.895 MHz ballpark.  When the band isn't open to Europe, 26.900 MHz FM would absolutely work though.