Help identifying this tone when using GMRS Repeater

[WRYT601]

Privacy tones only control the squelch.  If someone opens the squelch with the proper tone, other signals on the same frequency without the tone will also be heard.

The bluetooth device does not directly produce 2.4GHz, rather a sub-harmonic of that fed into a frequency multiplier.  Very few GHz devices generate the GHz signals directly.  Crystals cannot be cut for that high of frequency, so a lower frequency is used and then multiplied.  It might be that your receiver is picking up the leakage from earlier RF stages of the bluetooth device.

I suspect that the operators tones opened the squelch and the resulting interference held it open.

[WRXL702]

1 hour ago, WRYT601 said:

Privacy tones only control the squelch.  If someone opens the squelch with the proper tone, other signals on the same frequency without the tone will also be heard.

The bluetooth device does not directly produce 2.4GHz, rather a sub-harmonic of that fed into a frequency multiplier.  Very few GHz devices generate the GHz signals directly.  Crystals cannot be cut for that high of frequency, so a lower frequency is used and then multiplied.  It might be that your receiver is picking up the leakage from earlier RF stages of the bluetooth device.

I suspect that the operators tones opened the squelch and the resulting interference held it open.

That is not totally correct. Privacy tones opening a receiver does not put the receiver into a carrier squelch mode to hear other transmissions on that frequency at the same time. The receiver requires the correct tone and frequency together for operation & reception.

[WRUE951]

51 minutes ago, WRXL702 said:

That is not totally correct. Privacy tones opening a receiver does not put the receiver into a carrier squelch mode to hear other transmissions on that frequency at the same time. The receiver requires the correct tone and frequency together for operation & reception.

there are too many oddities to substantiate the OP's story..   Pretty much what bundle this as..  Story!  

[WRYT601]

3 hours ago, WRXL702 said:

That is not totally correct. Privacy tones opening a receiver does not put the receiver into a carrier squelch mode to hear other transmissions on that frequency at the same time. The receiver requires the correct tone and frequency together for operation & reception.

If someone is transmitting the tone, anyone else can transmit without the tone and get through as long as one person is transmitting the tone.  It is not always noticeable since FM usually puts the strongest station above the rest, but it does open it to anything on that frequency.  

[WRXL702]

6 minutes ago, WRYT601 said:

If someone is transmitting the tone, anyone else can transmit without the tone and get through as long as one person is transmitting the tone.  It is not always noticeable since FM usually puts the strongest station above the rest, but it does open it to anything on that frequency.  

No - That is not correct.

[WRYT601]

3 minutes ago, WRXL702 said:

No - That is not correct.

go try it.  put one radio set to receive with a tone on the counter, then have one person transmit with tone and not say anything at the same time you take a 3rd radio and talk without a tone.  Been doing this for a few decades, I'm not just a walie-talkie hero.

 

or dont try it, im not here to fight.  theres enough of that on FB, believe what you want.

[WRYT601]

1 hour ago, WRXL702 said:

That is simply because low end priced gmrs radios do not have the front end receiver filtering.

Please do additional research for an educational moment.

Ok, I just had an "educational moment" with my Yaesu FT-1XD ($370 when it was new) and it worked.  Admittedly, it sounded like crap as one would expect, but it did open the squelch and let the other radio through.  

Edit: If the bluetooth modules base frequencies were not quite a sub-harmonic, then a wide open budget receiver would also be a key player here, and I wasn't disputing that, merely offering a possible explanation as to what may have let the signal through only when "provoked" (or whatever the word used was).  But a cheap radio's wide open receiver has nothing to do with a no-tone radio riding in on someone elses transmitted tone.  In that situation, both signals, the one with a tone and the one without, are both on the same RF frequency and both centered in the receivers passband where the filters do nothing.