900Mhz daaaa

[canjap02]

I heard on AFN radio yesterday that the japanese (okinawan) goverment wants all military to stop using 900Mhz boardcastings, because it is interfearing with there emergency channels. So stop useing cordless phone, baby monitors, hell everything runs on 900Mhz. How stupid can they be, to put there emergencey channels on the 900Mhz band?

[amplify]

I heard on AFN radio yesterday that the japanese (okinawan) goverment wants all military to stop using 900Mhz boardcastings, because it is interfearing with there emergency channels. So stop useing cordless phone, baby monitors, hell everything runs on 900Mhz. How stupid can they be, to put there emergencey channels on the 900Mhz band?

I haven't seen a 900mhz cordless phone in AGES! Where do you get one?

[socalheart]

We have notices about this in our building lobby. The exchanges on base only carry one baby monitor, which is 900Mhz. :rolleyes: We looked for monitors off base (not just at ToysR'Us), but found none with video monitoring capability. :thumbdown: We had to order ours online from freakin China. The transmitting power is so low that there is static if you close the door or walk more than two feet from the camera. :mad: We have to send it back and get something with a little more power and IR, but within Japanese regulations.

This is a giant PITA, and I hope some high ranking officer has this problem too, so AAFES gets in some worthwhile and legal video monitors in stock. It won't help us any, but maybe it'll help some poor E-2 family who can't afford to buy one online. I know ours put us over our budget this month. I'm still pretty ticked that it doesn't transmit worth a darn. :rolleyes:

[abonifi1]

I haven't seen a 900mhz cordless phone in AGES! Where do you get one?

MCCS and AAFES, because they have:first: all the advanced technologies.

[P_chan]

I heard on AFN radio yesterday that the japanese (okinawan) goverment wants all military to stop using 900Mhz boardcastings, because it is interfearing with there emergency channels. So stop useing cordless phone, baby monitors, hell everything runs on 900Mhz. How stupid can they be, to put there emergencey channels on the 900Mhz band?

Stupid? Well, the spectrum is not infinite and every country allocates different frequencies for different purposes. Hence why you're unable to us ISR and FSR on Okinawa. What might be a ISR frequency in America could be an emergency frequency in Japan or another country. So Joe Blow walking around with his cobra HHR he ordered from walmart could be jamming local frequencies every time he hits the PTT button. Spectrum Management fell on my shop on Kadena and we had multiple policy letters banning the sale and use of ISR and FSR hand helds on island simply because the spectrum bands are different in Japan then they are in the states.

ROR, but then again, it wasn't always followed. Once I first arrived on kadena you couldn't even use cordless phones that were purchased in the states and a lot of shops would hide their cordless phone when inspectors came around. But last I heard the cordless phone rule changed because most newer model cordless phones use a frequency that's in the proper frequency range to be used in japan. But I'm sure there are people still using the old 900 Mhz models.

[canjap02]

true, I was thinking of all the stuff from back home, where everything is 900Mhz. I dont have any thing that transmits in my house (besides the TV remote).

[DoctorP]

how in the world are they gonna enforce that..

if a family already has a 900Mhz one and have another kid i am willing to bet they arent just gonna up and get rid of it to dump a chunk of change on a new one..

In mainland, they would track the signal, then issue a citation. I don't even think that they have ever attempted here. Funny thing is, even though this is a regulation, the base has never tried to stop AAFES from selling things that use 900Mhz.:rolleyes:

[socalheart]

if a family already has a 900Mhz one and have another kid i am willing to bet they arent just gonna up and get rid of it to dump a chunk of change on a new one..Are you talking about the kid or the electronics here? :D

In mainland, they would track the signal, then issue a citation. I don't even think that they have ever attempted here. Funny thing is, even though this is a regulation, the base has never tried to stop AAFES from selling things that use 900Mhz.:rolleyes:They can track the signal here also, but so far only to the building. :-| AAFES could literally sell poop and the military would be like, "Oh, that's nice." :rolleyes:

[amplify]

i guess.. i guessi dont know much about signals and interference and stuff.. we know you arent supposed to use cell phones on planes and stuff..

but its hard for me to wrap my mind around the fact that something like a baby monitor will affect communications in the way it seems like is being indicated..

Think of it as having 2 phones in your house on the same line in separate rooms. Someone calls and both phones are picked up. The phone call is for you; however the person in the other room didn't properly hang the phone up and is listening to the radio. The noise in the other room is interfering with your phone call and conversation.

I just don't see how a baby monitor or 900mhz phone can interfere with an operating range of ~25 feet... I could see a Motorola 5 mile walk-e-talkie doing it though.

[Tanimaga]

I can't see a 900Mhz low powered transmitter interfere with emergency channels considering its small footprint. Not on base anyways.

The emergency transmitters should overpower the weak signals.. maybe they don't want us to hear them on the moniters and phones.

[z's inmate#2341]

In mainland, they would track the signal, then issue a citation. I don't even think that they have ever attempted here. Funny thing is, even though this is a regulation, the base has never tried to stop AAFES from selling things that use 900Mhz.:rolleyes:

About three years ago AAFES did stop selling baby monitors that were on the Japanese emer freq. Don't know who told them to stop but they did. I knew they were going to yank them and bought one of the last sets on the shelf.

[Okiman]

the base has never tried to stop AAFES from selling things that use 900Mhz.:rolleyes:

Funny, this is just like the wheelies, Heelyes, or what ever they are called they can sell them, but do not wear them in their stores. When asked about this and other products such as flip flops/shower shoes other womens shoes, some clothing, they just say 'Hey we sell what moves' or some quote like that.

For the OP, I agree that the phones, baby monitors (maybe 50-100 foot range) might not seem like much, but as a signal is beamed, it stays low and if someone has a signal that the emergency signal is going through, then it can cause it to break up. Now to find that signal, good luck, but it can mes with the emergency signals. Another thing that it seems they are going after is the 2 way radios. Those can really mess things up and due to their power and can be tracked easily.

[P_chan]

In mainland, they would track the signal, then issue a citation. I don't even think that they have ever attempted here. Funny thing is, even though this is a regulation, the base has never tried to stop AAFES from selling things that use 900Mhz.:rolleyes:

We used to track signals if we got a request from the Japanese government or if it was interfering with our own comm. But in my three years there I only saw it done once.

[P_chan]

i guess.. i guessi dont know much about signals and interference and stuff.. we know you arent supposed to use cell phones on planes and stuff..

but its hard for me to wrap my mind around the fact that something like a baby monitor will affect communications in the way it seems like is being indicated..

It simply blocks the signal. If two people try to transmit on the same simplex net at the same time, the person who transmitted first will block out the person who is trying to transmit. So if you have something like a baby monitor that is on for hours at a time it is blocking that frequency in a certain area. Probably not large enough of an area to effect anything but you get he picture.

[DoctorP]

It simply blocks the signal. If two people try to transmit on the same simplex net at the same time, the person who transmitted first will block out the person who is trying to transmit. So if you have something like a baby monitor that is on for hours at a time it is blocking that frequency in a certain area. Probably not large enough of an area to effect anything but you get he picture.

I always thought the stronger signal would win out though.

[P_chan]

I always thought the stronger signal would win out though.

Normally yes, but it can still interfere with your transmission. Most radios will probably squlech out something as weak as a baby monitor. Hell, you'd have to be right outside of someones house to pick that up. But small cobra radios would be worse. Those put out about a watt or half of power. While the Motorola HHR they use on base put out between 2 and 5 watts. But most of those nets are repeated, but still there is the possibility of it interfering.

[socalheart]

This search for a video capable monitor (a.k.a. nanny cam) that isn't 900Mhz and still has a signal strong enough to transmit through walls and closed doors and can see in the dark is seemingly impossible! Japan's bug up its butt about this transomission thing is ridiculous, because they don't have anything available that's equivalent to the quality required to monitor as needed. Stupid frakkin bullshnit @#!*%& :cursing:

[Blues]

there was a big e-mail about it today. so be on the wary for those on base (and possibly off) the RF boogie men are out to get you!

http://i168.photobucket.com/albums/u190/LAiDEE_LUCK_1989/OogieBoogieMan.jpg