600 Mhz

[michaelmikesj]

Can someone please educate me on why there isn't any 600Mhz frequency range on scanners?

 

[fineshot1]

Can someone please educate me on why there isn't any 600Mhz frequency range on scanners?

That is digital tv spectrum - nothing for a scanner to receive.

 

[CommJunkie]

http://forums.radioreference.com/general-scanning-forum/204352-600mhz.html

 

[michaelmikesj]

AHA!!! Now I see, said the blind man to the deaf woman over the telephone.

 

[kc9cra]

I once had a Yaesu Ft50r that picked up the entire 600 mhz band. There's also hospital telemetry from 608 to 614 which is tv channel 37.

Years ago in science class, this was like seventh grade, 1997, he said if you tune to channel 48 or 50, something like that, and you can see as well as hear a meteor entering the atmosphere. I've never done this, but if it actually happens, you might be able to tune to that band with the squelch open and hear a meteor shower.

I don't quite know what it shows up as, he suggested some kind of warble, but I have no clue what visual affect you would see on your screen.

 

[chrismol1]

"600MHz is not permitted to be received by consumer scanners by a special agreement with the federal government. The Federal Government uses pieces of the 600mhz band in between the TV channels for National Covert Ops and Data Transmission Network. Many of the nations secrets are transmitted over this network which is beamed to government bases all over the country. Back in the day the Fed made a back room deal with television transmission companies to hide their signals in between what our nation watched on primetime. The only way you can get the signal is if you get your hands on the Government 600MHZ Transceivers which is heavily guarded and cannot be found using radio direction finding techniques"

 

[joen7xxx]

Or an old Regency MX-7000 scanner which covers 25-1,300 mhz. Still use mine

 

[W8RMH]

The Uniden BR330T covers 100 kHz - 1.3 GHz, cell blocked of course.

 

[KB7MIB]

Wirelessly posted (Mozilla/5.0 (X11; Linux i686; U; en-US) Gecko/20081217 Vision-Browser/8.1 301x200 LG VN530)

I'm sure there are other wide-band communications receivers that can receive the 512-764MHz television band. (Which used to extend into the 800MHz band.) Didn't the IC-R9000 have an NTSC video decoder option so you could watch pre-digital TV broadcasts?

 

[KB7MIB]

Wirelessly posted (Mozilla/5.0 (X11; Linux i686; U; en-US) Gecko/20081217 Vision-Browser/8.1 301x200 LG VN530)

And I do believe there was (is?) a radio astronomy allocation in the middle of the 512-764MHz band somewhere, to listen for meteorites or somesuch.

 

[gewecke]

"600MHz is not permitted to be received by consumer scanners by a special agreement with the federal government. The Federal Government uses pieces of the 600mhz band in between the TV channels for National Covert Ops and Data Transmission Network. Many of the nations secrets are transmitted over this network which is beamed to government bases all over the country. Back in the day the Fed made a back room deal with television transmission companies to hide their signals in between what our nation watched on primetime. The only way you can get the signal is if you get your hands on the Government 600MHZ Transceivers which is heavily guarded and cannot be found using radio direction finding techniques"

Really? Hmmm... I have some radios which tune there, what frequency steps are being used for this? NFM i assume?

73,
n9zas

 

[KB7MIB]

Wirelessly posted (Mozilla/5.0 (X11; Linux i686; U; en-US) Gecko/20081217 Vision-Browser/8.1 301x200 LG VN530)

chrismol1, where did that quote come from?

 

[gewecke]

Wirelessly posted (Mozilla/5.0 (X11; Linux i686; U; en-US) Gecko/20081217 Vision-Browser/8.1 301x200 LG VN530)

chrismol1, where did that quote come from?

Read further back on this thread.

73,
n9zas

 

[KB7MIB]

Wirelessly posted (Mozilla/5.0 (X11; Linux i686; U; en-US) Gecko/20081217 Vision-Browser/8.1 301x200 LG VN530)

He posted it, but where did he get it from?

 

[lep]

OMG, the secret is out, the NCODTN will now be compromised.

 

[ampulman]

Hmmm, I have an (very) old UHF tv continuous tune converter sitting in my basement. It 'outputs' on TV channel 3 or 4.

Guess I could hook it up to one of my scanners. Would take me back to the late '60s, when I laboriously tuned my radio with VHF PSB to monitor an unknown Federal agency's stakeouts.

I would imagine, anything worth listening to would be encrypted anyway. Comments, anyone.

Amp

 

[kc4jgc]

TV trivia

There are NO TV stations licensed for channel 37; it's reserved for radio astronomy.

 

[michaeldim]

"600MHz is not permitted to be received by consumer scanners by a special agreement with the federal government. The Federal Government uses pieces of the 600mhz band in between the TV channels for National Covert Ops and Data Transmission Network. Many of the nations secrets are transmitted over this network which is beamed to government bases all over the country. Back in the day the Fed made a back room deal with television transmission companies to hide their signals in between what our nation watched on primetime. The only way you can get the signal is if you get your hands on the Government 600MHZ Transceivers which is heavily guarded and cannot be found using radio direction finding techniques"

Where in the world did you get that? Many receivers out there get 600MHz. Scanners don't because the TV signals are useless to try and listen to. (and besides, they're much too wideband for a scanner to handle anyway.)

Hell, I even have that $20 RTL-SDR thing and it can tune 600 no problem.

As for "secret signals", that sounds like a load of conspiracy bunk to me.

 

[Confuzzled]

Tin Foil Hat Society?

No, wait. Lemme guess .... 600 penetrates tin foil, right?

 

[KE4ZNR]

"600MHz is not permitted to be received by consumer scanners by a special agreement with the federal government. The Federal Government uses pieces of the 600mhz band in between the TV channels for National Covert Ops and Data Transmission Network. Many of the nations secrets are transmitted over this network which is beamed to government bases all over the country. Back in the day the Fed made a back room deal with television transmission companies to hide their signals in between what our nation watched on primetime. The only way you can get the signal is if you get your hands on the Government 600MHZ Transceivers which is heavily guarded and cannot be found using radio direction finding techniques"

:roll:
Marshall KE4ZNR