Which Brandss of cordless phones most reliable

[Joerg]

Jeff Liebermann wrote:

On Tue, 22 Sep 2009 08:20:14 -0700, Joerg <invalid@invalid.invalid
wrote:

It's the comm from handset to base that drops out, base to handset never
drops out. The next cell tower is about a mile away though but we are on
top of a knoll.

The means the base receiver might be getting clobbered by a cell site.
Move the base away from the window and put something substantial (like
a wall) in between it and the cell site. Experiments with reflectors.

I would assume the base could also be fooled by a signal from a cell
phone itself if close enough.

Probably not. DECT 6.0 phones operate on 1920-1930MHz.
US PCS cellular base to mobile is at 1930-1990Mhz.

Just ran a spectrum. Strong signal at 1930.9MHz. Plus a really fat one
at 1901.1MHz. Dang.

US PCS cellular mobile to base is at 1850-1910MHz.

The handset is at least 20 Mhz away from the PCS receiver, which is
sufficiently far away so that a cheap SAW or ceramic filter would
work. That's in contrast to the PCS base, which is literally adjacent
to the DECT 6.0 frequencies.

Yup, looks like it :-(

Why did they screw up the chip sets so
badly?

The chipsets are fine. It's the lack of RF filtering that's the
problem. I haven't looked inside the phone, but my guess is that the
RF filtering is fairly minimal.

I am not at all sure about them being fine. All our previous phones
operated in the 2.45GHz band. You could stand right next to the WLAN
router while it was cranking some fat PDF file and happily talk it up.
No interference. They must have done somthing right.

Problem is, all the phones offered around here are now DECT.

I mean, I can stand right next to a guy with another cell phone
at the airport or even inside the metal fuselage of an airplane (after
landing) and nothing interferes. Did the DECT guys screw it up?

Actually, it does interfere. For GSM, the cell site synchronizes
frequencies and TDMA slot times so that they don't directly interfere.
With CDMA (spread spectrum), it's not so nice as additional handsets
raise the base line noise level. With sufficient noise generated by
other handsets, a marginal signal could cause a session disconnect.
The good news is that you won't hear any beat notes, intermod,
crosstalk, or garble. All that will happen is a dropped call.

I have a CDMA phone (Sprint network) and never had one call dropped. Not
inside an airplane nor anywhere else.

--
Regards, Joerg

http://www.analogconsultants.com/

"gmail" domain blocked because of excessive spam.
Use another domain or send PM.

 

[Joerg]

P.S.: Just spectrum-analyzed the phone system itself. It operates at
1926.9MHz with about 1.4MHz bandwidth. Needless to say, no pointers in
the manual whatsoever on how to move that down in the band a bit :-(

But the manual does say not to put heavy objects on top of the phone, in
English and in Spanish ...

--
Regards, Joerg

http://www.analogconsultants.com/

"gmail" domain blocked because of excessive spam.
Use another domain or send PM.

 

[vkamobile phone]

On 9ÔÂ25ČŐ, ÉĎÎç3Ęą38ˇÖ, Joerg <inva...@invalid.invalid> wrote:

P.S.: Just spectrum-analyzed the phone system itself. It operates at
1926.9MHz with about 1.4MHz bandwidth. Needless to say, no pointers in
the manual whatsoever on how to move that down in the band a bit :-(

But the manual does say not to put heavy objects on top of the phone, in
English and in Spanish ...

--
Regards, Joerg

http://www.analogconsultants.com/

"gmail" domain blocked because of excessive spam.
Use another domain or send PM.

http://www.vkamobi.com
http://www.handbagtime.com

 

On Tuesday, 1 September 2009 03:06:45 UTC+1, hr(bob) hofmann@att.net wrote:

I am considering buying some new cordless phones with the caller-ID
and answering features. Besides Consumerrrs Reports, does anyone here
have any experience repairing cordless phones, and which brand(s) do
they consider most reliable and/or repairable?

TIA,

Bob Hofmann

Well, I am surprised by the positive comments on Panasonic Dect phones. Each of the 5 handsets on my Panasonic system have failed one by one. Now only 3 years after purchase I have to buy another complete set and start over.. I will NEVER buy another Panasonic phone. It's all very well having the fancy functions, but not if you can't make or receive a call on it! Trouble is, what to buy that's going to be reliable?

 

[Michael A. Terrell]

tom.rice50@gmail.com wrote:

Well, I am surprised by the positive comments on Panasonic Dect phones. Each of the 5 handsets on my Panasonic system have failed one by one. Now only 3 years after purchase I have to buy another complete set and start over. I will NEVER buy another Panasonic phone. It's all very well having the fancy functions, but not if you can't make or receive a call on it! Trouble is, what to buy that's going to be reliable?

Any more reliable than some idiot British Google Groups user who
resurrecting a four year old thread? My Panasonic KX-TGA600S phones are
over seven years old, and still have the original batteries. They still
hold a good charge, and are used almost daily.


--
Anyone wanting to run for any political office in the US should have to
have a DD214, and a honorable discharge.

 

[Michael Black]

On Mon, 12 Aug 2013, Michael A. Terrell wrote:

tom.rice50@gmail.com wrote:

Well, I am surprised by the positive comments on Panasonic Dect phones. Each of the 5 handsets on my Panasonic system have failed one by one. Now only 3 years after purchase I have to buy another complete set and start over. I will NEVER buy another Panasonic phone. It's all very well having the fancy functions, but not if you can't make or receive a call on it! Trouble is, what to buy that's going to be reliable?


Any more reliable than some idiot British Google Groups user who
resurrecting a four year old thread? My Panasonic KX-TGA600S phones are
over seven years old, and still have the original batteries. They still
hold a good charge, and are used almost daily.

But the key point, since he resurrected a four year old thread, is whether

any of the phones that were discussed are still available. I thought a
lot of consumer items were basically one run things, when they run out a
new model is issued, if for no other reason than the parts that were in
the previous model may not be readily available. Functionally they stay
the same, but model numbers and innards may be different.

Michael

 

[gregz]

On Mon, 12 Aug 2013, Michael A. Terrell wrote:
tom.rice50@gmail.com wrote:

Well, I am surprised by the positive comments on Panasonic Dect phones.
Each of the 5 handsets on my Panasonic system have failed one by one. Now
only 3 years after purchase I have to buy another complete set and start
over. I will NEVER buy another Panasonic phone. It's all very well having
the fancy functions, but not if you can't make or receive a call on it!
Trouble is, what to buy that's going to be reliable?

Any more reliable than some idiot British Google Groups user who
resurrecting a four year old thread? My Panasonic KX-TGA600S phones are
over seven years old, and still have the original batteries. They still
hold a good charge, and are used almost daily.

But the key point, since he resurrected a four year old thread, is whether
any of the phones that were discussed are still available. I thought a lot
of consumer items were basically one run things, when they run out a new
model is issued, if for no other reason than the parts that were in the
previous model may not be readily available. Functionally they stay the
same, but model numbers and innards may be different.
Michael

Had to paste above for some reason..

I still got a trusty analog well over predicted life. Same battery.
My unison phones randomly goes into privacy mode for 20 seconds, then I
say, I was off for 20 seconds. Hope the new phones, still in box, work.
They seem to change models often, and most of the phones, various brands,
are much the same.

Greg

 

[Shaun]

wrote in message
news:76e1dcc6-a472-40ee-8de8-99ba4659a9b1@googlegroups.com...

On Tuesday, 1 September 2009 03:06:45 UTC+1, hr(bob) hofmann@att.net wrote:

I am considering buying some new cordless phones with the caller-ID
and answering features. Besides Consumerrrs Reports, does anyone here
have any experience repairing cordless phones, and which brand(s) do
they consider most reliable and/or repairable?

TIA,

Bob Hofmann

Well, I am surprised by the positive comments on Panasonic Dect phones.
Each of the 5 handsets on my Panasonic system have failed one by one. Now
only 3 years after purchase I have to buy another complete set and start
over. I will NEVER buy another Panasonic phone. It's all very well having
the fancy functions, but not if you can't make or receive a call on it!
Trouble is, what to buy that's going to be reliable?

Why don't your open up the battery compartment and check to see what kind of
batteries are in it. The panasonic phone I have has 2 AAA NiCD batteries
in. I found a battery store in town called them and replaced all 6
batteries in 3 phones for $12.00.

 

[Shaun]

"Michael A. Terrell" wrote in message
news:fK6dnUWteMOa4pfPnZ2dnUVZ_rWdnZ2d@earthlink.com...


Michael Black wrote:

On Tue, 13 Aug 2013, Michael A. Terrell wrote:


Shaun wrote:

Why don't your open up the battery compartment and check to see what
kind of
batteries are in it.


NiMh.

But I think the point was whether the phone uses a battery pack, or just
regular off the shelf AA cells.

The former, you either need to put togehter a replacement pack, or buy
one, which can be expensive. If the latter, just about any AA will work
so you have options if there is a problem.

if there is a problem, I can always use a different handset. I keep
the base and two phones in my bedroom. One on the computer desk, and the
other on a charger by my bed. The third phone is near the back door. I
paid nothing for these phones. They were given to me used, when a
relative decided to drop their landline. They sat in storage for a year
before they remembered to give me the box, with the NiMh batteries
installed.

There does seem to be a move to regular AA cells (though obviously in the
form of nimh), which certainly makes the phones more useful.

More useful? The phones I have are over seven years old, with the
original NiMh packs that are dirt cheap to replace.


They are dirt cheap wonder boy IF you go to a dedicated battery store and
get the cells or have them make a new pack for you their. If you go to a
regular department store you'll pay an arm and a leg for the batteries. The
prices are so bad at regular store you might as well buy new phones!

Shaun


--
Anyone wanting to run for any political office in the US should have to
have a DD214, and a honorable discharge.

 

[Michael A. Terrell]

Shaun wrote:

They are dirt cheap wonder boy IF you go to a dedicated battery store and
get the cells or have them make a new pack for you their. If you go to a
regular department store you'll pay an arm and a leg for the batteries. The
prices are so bad at regular store you might as well buy new phones!

Who pays retail for batteries, if they repair electronics? The
Panasonic batteries were under $4 a set, the last time I looked into the
cost.

The Uniden phones I had on the other phone line died before their
batteries, and they were cheap Nicad packs that sell for under $3.

BTW, ar there 'Irregular department stores'?

Where do all of you knuckle dragging fools come from? I hope you
aren't the dumbass 'Shaun' I worked with in Cincinnati, in the mid
'80s. OTOH that's highly unlikely, since he should be dead of alcohol
poisioning by now.

What have you ever done in electronics, other than hang around
'Regular department stores'?


--
Anyone wanting to run for any political office in the US should have to
have a DD214, and a honorable discharge.

 

[Shaun]

"Michael A. Terrell" wrote in message
news:Sdadnay_ssciu5DPnZ2dnUVZ_gydnZ2d@earthlink.com...


Shaun wrote:

They are dirt cheap wonder boy IF you go to a dedicated battery store and
get the cells or have them make a new pack for you their. If you go to a
regular department store you'll pay an arm and a leg for the batteries.
The
prices are so bad at regular store you might as well buy new phones!

Who pays retail for batteries, if they repair electronics? The
Panasonic batteries were under $4 a set, the last time I looked into the
cost.

The Uniden phones I had on the other phone line died before their
batteries, and they were cheap Nicad packs that sell for under $3.

BTW, ar there 'Irregular department stores'?

Where do all of you knuckle dragging fools come from? I hope you
aren't the dumbass 'Shaun' I worked with in Cincinnati, in the mid
'80s. OTOH that's highly unlikely, since he should be dead of alcohol
poisioning by now.

What have you ever done in electronics, other than hang around
'Regular department stores'?

I have Two College Diplomas, one In Electronic Technology and the other in
Biomedical Technology. I Certified as an Engineering Technologist in my
Country. I have an Advanced amateur Radio License just because.

I have worked in a Hospital for 15 years testing and repairing Medical
Electronics - it was a one Man shop.
I have worked at repairing industrial electronics and doing calibrations of
different types of meters for 4 years.
I have built a medium sized Tesla Coil that makes 4 to 5 foot sparks in all
directions.
I build my own computers and fix computers.

Shaun

--
Anyone wanting to run for any political office in the US should have to
have a DD214, and a honorable discharge.

 

[Roger Blake]

On 2013-08-17, Shaun <stereobuff07@gmail.com> wrote:
> I build my own computers and fix computers.

Not that big a deal these days. Back in the late 1940s/early 1950s it
was indeed a big deal to build a computer:

http://www.telegraph.co.uk/technology/news/8879727/How-a-chain-of-tea-shops-kickstarted-the-computer-age.html

http://www.leo-computers.org.uk/

--
-----------------------------------------------------------------------------
Roger Blake (Change "invalid" to "com" for email. Google Groups killfiled.)

"Climate policy has almost nothing to do anymore with environmental
protection... the next world climate summit in Cancun is actually
an economy summit during which the distribution of the world's
resources will be negotiated." -- Ottmar Edenhofer, IPCC
-----------------------------------------------------------------------------

 

[Michael A. Terrell]

Shaun wrote:

"Michael A. Terrell" wrote in message
news:Sdadnay_ssciu5DPnZ2dnUVZ_gydnZ2d@earthlink.com...

Shaun wrote:

They are dirt cheap wonder boy IF you go to a dedicated battery store and
get the cells or have them make a new pack for you their. If you go to a
regular department store you'll pay an arm and a leg for the batteries.
The
prices are so bad at regular store you might as well buy new phones!

Who pays retail for batteries, if they repair electronics? The
Panasonic batteries were under $4 a set, the last time I looked into the
cost.

The Uniden phones I had on the other phone line died before their
batteries, and they were cheap Nicad packs that sell for under $3.

BTW, ar there 'Irregular department stores'?

Where do all of you knuckle dragging fools come from? I hope you
aren't the dumbass 'Shaun' I worked with in Cincinnati, in the mid
'80s. OTOH that's highly unlikely, since he should be dead of alcohol
poisioning by now.

What have you ever done in electronics, other than hang around
'Regular department stores'?

I have Two College Diplomas, one In Electronic Technology and the other in
Biomedical Technology. I Certified as an Engineering Technologist in my
Country. I have an Advanced amateur Radio License just because.

I have worked in a Hospital for 15 years testing and repairing Medical
Electronics - it was a one Man shop.

Good for you. I started repairing electronics in 1965. Back when the
entire RCA replacement transistor line was germanium transistors, and
the cross reference was the size of a small movie poster, or a fold up
price chart for tube prices. At the end of my time in manufacturing, I
was hand soldering ICs with leads spaced .015" center to center under a
stereo microscope and doing a better job than the brand new Heller
reflow oven.

I have worked at repairing industrial electronics and doing calibrations of
different types of meters for 4 years.

Yawn, I built Telemetry equipment for the Aerospace industry for four
years. I also worked as an engineering tech, did failure analysis and
worked in the cal lab. Some of my design work went into orbit as part
of the ISS, and I was a broadcast at three TV stations from the early
'70s to the late '90s. I have a letter of commendation from the US Army
for work I did at a station in Alaska. I never bothered with a ham
license, since most of the hams I knew were lids. Too stupid to solder
a mic plug, or wire a straight key to a 1'4" plug. They would blow up
their rigs, and I would repair them.

I have built a medium sized Tesla Coil that makes 4 to 5 foot sparks in all
directions.

Built one bigger than that in 1969. Anyone who can read and chew gum
at the same time can wind the output coil for a Tesla coil.

I built a two meter repeater on 146.01/61 MHz for my school's ham
radio club. One of the TV stations I worked at was an empty building
before I laid out the equipment room, installed the transmitter and
processing racks. That was a 1952 model TTU-25B UHF TV transmitter on
Ch. 58 that was built by RCA. Parts were no longer available from RCA,
since they were out of the broadcast business. That only made the job
slightly harder, since there had been no new final tubes made for about
20 years, and no company had managed to rebuild one that could put out
anywhere near the rated power. Nice water cooled stainless steel jugs
with 7 KVDC across the coolant. Twin 1000A 1.5V filaments that had to
be balanced by stretching copper bussbars used as variable resistors.

I build my own computers and fix computers.

Anyone with a screwdriver & box of parts can assemble a computer. Let
me know when you design your own from scratch.

--
Anyone wanting to run for any political office in the US should have to
have a DD214, and a honorable discharge.

--
Anyone wanting to run for any political office in the US should have to
have a DD214, and a honorable discharge.

 

[Shaun]

"Michael A. Terrell" wrote in message
news:_sCdnRgBPIlcMI_PnZ2dnUVZ_vednZ2d@earthlink.com...


Shaun wrote:

"Michael A. Terrell" wrote in message
news:Sdadnay_ssciu5DPnZ2dnUVZ_gydnZ2d@earthlink.com...

Shaun wrote:

They are dirt cheap wonder boy IF you go to a dedicated battery store
and
get the cells or have them make a new pack for you their. If you go to
a
regular department store you'll pay an arm and a leg for the batteries.
The
prices are so bad at regular store you might as well buy new phones!

Who pays retail for batteries, if they repair electronics? The
Panasonic batteries were under $4 a set, the last time I looked into the
cost.

The Uniden phones I had on the other phone line died before their
batteries, and they were cheap Nicad packs that sell for under $3.

BTW, ar there 'Irregular department stores'?

Where do all of you knuckle dragging fools come from? I hope you
aren't the dumbass 'Shaun' I worked with in Cincinnati, in the mid
'80s. OTOH that's highly unlikely, since he should be dead of alcohol
poisioning by now.

What have you ever done in electronics, other than hang around
'Regular department stores'?

I have Two College Diplomas, one In Electronic Technology and the other in
Biomedical Technology. I Certified as an Engineering Technologist in my
Country. I have an Advanced amateur Radio License just because.

I have worked in a Hospital for 15 years testing and repairing Medical
Electronics - it was a one Man shop.

Good for you. I started repairing electronics in 1965. Back when the
entire RCA replacement transistor line was germanium transistors, and
the cross reference was the size of a small movie poster, or a fold up
price chart for tube prices. At the end of my time in manufacturing, I
was hand soldering ICs with leads spaced .015" center to center under a
stereo microscope and doing a better job than the brand new Heller
reflow oven.

My God..... you must be really old!! Germanium transistors... I've
replaced a few of those. I've never had to work with a microscope, I guess
you needed it to see your dick.

That reflow oven wasn't set up right or you weren’t using enough flux!. It
should look the same a skilled hand soldering.

I have worked at repairing industrial electronics and doing calibrations
of
different types of meters for 4 years.

Yawn, I built Telemetry equipment for the Aerospace industry for four
years. I also worked as an engineering tech, did failure analysis and
worked in the cal lab. Some of my design work went into orbit as part
of the ISS, and I was a broadcast at three TV stations from the early
'70s to the late '90s. I have a letter of commendation from the US Army
for work I did at a station in Alaska. I never bothered with a ham
license, since most of the hams I knew were lids. Too stupid to solder
a mic plug, or wire a straight key to a 1'4" plug. They would blow up
their rigs, and I would repair them.

I've built a repeater controller in College for my final project. It sent
out morse code ID, it had voice and you could change the way it operated
with a DTMF pad on a radio tuned to the I/P frequency. It was pretty fancy
for a college project.

I have built a medium sized Tesla Coil that makes 4 to 5 foot sparks in
all
directions.

Built one bigger than that in 1969. Anyone who can read and chew gum
at the same time can wind the output coil for a Tesla coil.

I doubt yours would have preformed that well. There is a LOT more to it
than that. There are a lot of calculations to determine the secondary
resonant frequency, primary frequency range, mutual inductance, coupling,
matching the step up transformer to the capacitor size so that you get the
most power output; stuff like that.
Otherwise it is hit or miss and you may tune the tesla coil to work on a
harmonic which results in lower power output and improper tuning.

My output coil is wound on 4.0 inch white PVC tubing, thin wall which is
ideal. I sanded in inside and outside, cleaned it with alcohol and let it
dry while blowing hot air threw it. Coated the inside and outside on the
PVC tube with 2 or 3 coats of polyurethane to seal it. I put the coated
tube in the freezer so it would shrink, then I wound the coil, no kinks, no
overlaps, no spaces between turns, about 1200 turns of 26 gauge magnet wire.
Then over the course of two weeks I coated it 12 times with polyurethane
while it was slowly turning and I'd sand away any air bubbles that I saw.
It worked very well.

Shaun


I built a two meter repeater on 146.01/61 MHz for my school's ham
radio club. One of the TV stations I worked at was an empty building
before I laid out the equipment room, installed the transmitter and
processing racks. That was a 1952 model TTU-25B UHF TV transmitter on
Ch. 58 that was built by RCA. Parts were no longer available from RCA,
since they were out of the broadcast business. That only made the job
slightly harder, since there had been no new final tubes made for about
20 years, and no company had managed to rebuild one that could put out
anywhere near the rated power. Nice water cooled stainless steel jugs
with 7 KVDC across the coolant. Twin 1000A 1.5V filaments that had to
be balanced by stretching copper bussbars used as variable resistors.

I build my own computers and fix computers.

Anyone with a screwdriver & box of parts can assemble a computer. Let
me know when you design your own from scratch.

--
Anyone wanting to run for any political office in the US should have to
have a DD214, and a honorable discharge.

--

Anyone wanting to run for any political office in the US should have to
have a DD214, and a honorable discharge.

 

[dave]

On 08/23/2013 05:33 PM, Shaun wrote:

"Michael A. Terrell" wrote in message

I built a two meter repeater on 146.01/61 MHz for my school's ham
radio club. One of the TV stations I worked at was an empty building
before I laid out the equipment room, installed the transmitter and
processing racks. That was a 1952 model TTU-25B UHF TV transmitter on
Ch. 58 that was built by RCA. Parts were no longer available from RCA,
since they were out of the broadcast business. That only made the job
slightly harder, since there had been no new final tubes made for about
20 years, and no company had managed to rebuild one that could put out
anywhere near the rated power. Nice water cooled stainless steel jugs
with 7 KVDC across the coolant. Twin 1000A 1.5V filaments that had to
be balanced by stretching copper bussbars used as variable resistors.

Didn't Comark (division of Thomson Multimedia) service RCA customers
well into the 1990s? When I went to IOT school in 1995 they still sold
RCA renewal parts. Comark bought RCA (including the rights to Nipper).
Now they are both part of Thales, a French defense contractor.

 

[Michael A. Terrell]

dave wrote:

On 08/23/2013 05:33 PM, Shaun wrote:


"Michael A. Terrell" wrote in message

I built a two meter repeater on 146.01/61 MHz for my school's ham
radio club. One of the TV stations I worked at was an empty building
before I laid out the equipment room, installed the transmitter and
processing racks. That was a 1952 model TTU-25B UHF TV transmitter on
Ch. 58 that was built by RCA. Parts were no longer available from RCA,
since they were out of the broadcast business. That only made the job
slightly harder, since there had been no new final tubes made for about
20 years, and no company had managed to rebuild one that could put out
anywhere near the rated power. Nice water cooled stainless steel jugs
with 7 KVDC across the coolant. Twin 1000A 1.5V filaments that had to
be balanced by stretching copper bussbars used as variable resistors.


Didn't Comark (division of Thomson Multimedia) service RCA customers
well into the 1990s? When I went to IOT school in 1995 they still sold
RCA renewal parts. Comark bought RCA (including the rights to Nipper).
Now they are both part of Thales, a French defense contractor.

They still sold some custom uncased silver mica caps that were used
as coupling capacitors for the 4CX250 drivers, but not much else. The
custom made final tubes were made by their transmitting tube division,
and when RCA shut it down, they destroyed all the design and assembly
information. One of the old RCA Transmitting Tube manuals had a
simplified schematic, and the data sheets for the 12.5 & 25 KW UHF water
cooled power tetrodes. The transmitters were considered obsolete and
EOL, so parts that were designed strictly for that model were NLA. That
custom Mica cap was used in some RCA FM transmitters that used the same
basic chassis as the aural stage of the TTU-1 and TTU-25 series TV
transmitters. Why keep making parts for a transmitter that was
considered too low power for new builds? The two final tubes were
designed for that one series of transmitters.


--
Anyone wanting to run for any political office in the US should have to
have a DD214, and a honorable discharge.