Let me recommend the 900 mhz spread spectrum phones. They offer privacy
and very good performance. Spread spectrum may be available in the 2 and
5 ghz models, but I avoid the 2 gmhz models because they interfere with
other itmes and microwave ovens can interfere with them.
Will K4SAY
[log in to unmask]
On Tue, 19 Apr
2005, Jeff Kenyon wrote:
> Hi, I know the bands, but I just now am wondering about coverage. I do not
> have terrain issues to worry about
> ----- Original Message -----
> From: "Colin McDonald" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Tuesday, April 19, 2005 11:21 AM
> Subject: Re: OT cordless phone range question
>
>
>> cordless phones:
>> There are currently four popular north american frequency ranges for
>> cordless phones:
>> 45-49 MHZ
>> 900MHZ (not sure the band spread)
>> 2.4GHZ (again not sure band spread)
>> 5.8GHZ (these band spreads can be found i have no doubt by doing a google
>> for cordless phone frequencies)
>>
>> They all have similar ranges bassed on different variables such as
>> manufacturer, quality of components, the area you are in weather there is
>> allot of other traffic on the same frequency spectrum or allot of RF
>> interpherence causing reduced range.
>> Most 900, 2.4gig and 5.8 gig phones have a range of perhaps a few blocks
>> in
>> any given direction as long as there are no obstructions and the bass
>> transmitting section and antenna are located in a relatively obstruction
>> free area.
>> The rf power output of these units is very minimal, in the range of 10/25
>> milliwatts or a tenth to a 25th of a watt. You can increase your range by
>> installing a home made or camercially availible antenna for the bass
>> transmitter/receiver as long as the bass will accept a external antenna
>> jack
>> somehow.
>> Most are built with the antenna nearly integral to the design of the
>> phone,
>> but sometimes you can get bass units with an antenna that has a mini-SMA
>> or
>> mini BNC type connecter on the antenna much like many wireless routers
>> have.
>> A good all around stable range that you should always get is about 200
>> yards
>> out of any cordless phone you buy, if you cheap out though and go for the
>> cheapest thing on the shelf you are going to get terribly low efficiency
>> and
>> much reduced range. Go for the mid priced phones made by panasonic, sony,
>> uniden and other top brands.
>> In cordless phones the length of the antenna has little bearing on range,
>> some of the 2.4 ghz and 5.8 ghz phones have no externally visible antenna
>> on
>> the handset. You will see similar designs in cellular telephones and
>> these
>> work just as well as the phones with the 3 inch stub on them.
>> The phone you may have had back in college dependant upon how long ago was
>> a
>> 46MHZ cordless...these offten had pretty good range especially the uniden
>> phones. This was because they do depend on antenna gain and the larger
>> the
>> manufacturer made the antenna the better they got out...usually though the
>> antenna length was sacrificed for cosmedic purposes, looks in other words,
>> a
>> long antenna isn't very nice to have if you arent a ham or hobbiest.
>> Anyway i think that might help im not sure.
>> 73
>> Colin, VA6BKX
>> ----- Original Message -----
>> From: "Jeff Kenyon" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Tuesday, April 19, 2005 6:56 AM
>> Subject: Re: OT cordless phone range question
>>
>>
>>> Hi everyone, the phone I got in college that I am thinking of replacing
>>> had amazing range in college, and when at my grandomther's house and this
>>> and my location now is relatively flat. It is a 900 MHz phone, but I
>>> can't get the range to improve here, and I have put it in a great
>>> location
>>> for RF transmisions, up stairs close to a window, but in the dorm I
>>> couldn't put it near a window, and got great coverage on it. I know that
>>> C. Crane had one that there was a record of a few miles with it. I can't
>>> recall the brand of it now though.
>>>
>>>
>>>
>>>
>>>
>>> On Tue, 19 Apr 2005, John Miller wrote:
>>>
>>>> I have a uniden 5.8 GHz cordless phone and I can get at least as good
>>>> if
>> not
>>>> better range than any other we've had here, it won't go around my
>>>> block,
>> but
>>>> my block is 6.3 miles around, but I can go anywhere in my back yard
>>>> with
>> no
>>>> issues and that's pretty big and the base stand is in 1 of the worst
>> places
>>>> in my house for RF signals so I could probably move it and get a lot
>> better
>>>> even if I tried. Mine is 1 of the digital ones too, I got it on
>>>> www.amazon.com.
>>>> ----- Original Message -----
>>>> From: "Jeff Kenyon" <[log in to unmask]>
>>>> To: <[log in to unmask]>
>>>> Sent: Tuesday, April 19, 2005 8:42 AM
>>>> Subject: Re: OT cordless phone range question
>>>>
>>>>
>>>> I'll have to think about that. What have others seen as far as range
>> goes
>>>> in a cordless phone?
>>>>
>>>
>
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