http://www.proxmark.org/files/
Where do I have to look? Can't find EM4233 for example...
]]>I resume this post:
I did again some tests using HF and LF antennas to identify the working frequency of that tag:
I have a little voltage INCREMENT only at 13.56MHz (from 10.15v to 10.28); should that mean that the frequency is LOWER than 13.56 ? The chip is manufactured from EM Microelectronic in 2000-2002 and is not a common chip but a custom one called H4062 (H was used by EM Microelectronics before the introduction of the EM suffix before chip number so is an old chip with absolutely no documentation of it).
If someone is interested I also found lot of EM Microelectronic datasheets (not factsheest) files for many EM products, here is the list:
H4001 125 KHz Read only, 64 Bit
EM4102/H4102 125 KHz Read only, 64 Bit
H4003 125 KHz - 3.25 MHz Read only, 64 Bit
EM4005/EM4105 100~150 KHz Read only, 128 Bit ISO 11784/85 Compatible
EM4006/H4006 13.56 MHz Read only, 64 Bit
EM4022/P4022 Multifrequency NONE (64 Bit UID)
EM4025/EM4125 100~150 KHz Read only, 55 Bit
EM4033 13.56 MHz Read only, 64 Bit ISO 15693
EM4034 13.56 MHz R/W, 448 Bit ISO 15693
EM4035 13.56 MHz R/W, 3.2K Bit ISO 15693
V4050 125 KHz R/W, 1024 Bit
EM4055 125 KHz R/W, 1K Bit
EM4056/P4056 100~150 KHz R/W, 2K Bit
EM4069/EM4169 100~150 KHz R/W, 128 Bit
V4070 115~135 R/W, 160 Bit
P4092 100~150 KHz Base Station
EM4094 13.56 MHz Base Station ISO 15693-14443A/B
EM4095 125 KHz Booster Circuit
EM4100 100~150 KHz Read only, 64 Bit
EM4102 125 KHz Read only, 64 Bit
EM4105 125 KHz Read only, 128 Bit
EM4033 13.56 MHz Read only, 64 Bit (UID) ISO 15693
EM4122 860~960 MHz Read only, 64 Bit
EM4123 (replaces EM4122) 860~960 MHz Read only, 64 Bit
EM4133 13.56 MHz R/W, 512 Bit ISO 15693
EM4135 13.56 MHz R/W, 2432 Bit ISO 15693
EM4150/EM4350 100~150 KHz R/W, 1K Bit
EM4170 125 KHz R/W, 256 Bit
EM4200 (replace EM4100/4102/4005/4105) 125~134.2 KHz Read only, 64 Bit ISO 11784/85 Compatible
EM4205/EM4305 125~134.2 KHz R/W, 512 Bit ISO 11784/85 Compatible
EM4233 13.56 MHz R/W, 2K Bit ISO 15693
EM4294 13.56 MHz Front End ISO 15693/ISO 14443A/B
EM4324 860~960 MHz Read only, 1024 Bit ISO 18000 6C
EM4450/EM4550 125 KHz R/W, 1024 Bit
EM4469 100~150 KHz R/W, 512 Bit ISO 11785 Compatible
asper, I'm interested in the datasheets. Is there any way to download them?
]]>Look for:
Desktop.rar
File Size: 243.07KB
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Click here to start download from sendspace
No file to execute, you probably clicked the wrong link, you should get a .rar archive (243.07KB), not an .exe; click on "Click here to start download from sendspace"; maybe you are not familiar with sendspace pages ?
No, I am not familiar with it and do not have an account but, you cannot click on anything on that link without an invitation to download iLivid.exe file.........no thank you.
]]>It could very well this tag needs a "trigger" command before it starts responding. You can try to look at the datasheets of similar products from EM and send the simple "select" commands to figure out on which it will respond.
]]>Any clues ? I also have Audacity recordings using a netbook audio-in "sniffer" (in theory tuned for 125KHz).
PS 1400Hz (1.4KHz) are in the range of ULF... too "ultra-low" I think for that kind of device... don't you think ? Maybe a sub-multiple...
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