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  <channel>
    <title>Tags / Transponder</title>
    <link>http://rfid-handbook.de/forum/list.php?8</link>
    <description><![CDATA[At this forum you may discuss about all aspects of tags and transponder (contactless smartcards, smart-label, glas transponder, ...).]]></description>
    <language>EN</language>
    <pubDate>Mon, 21 Jun 2010 12:20:39 +0200</pubDate>
    <lastBuildDate>Mon, 21 Jun 2010 12:20:39 +0200</lastBuildDate>
    <category>Tags / Transponder</category>
    <generator>Phorum 5.1.15</generator>
    <ttl>600</ttl>
    <item>
      <title>Re: Reading from 1K Mifare card (CL RC 632,ISO14443A)</title>
      <link>http://rfid-handbook.de/forum/read.php?8,3144,3861#msg-3861</link>
      <author>ganesh</author>
      <description><![CDATA[dear sir 

  i am trining to authenticate card and r/w in memory. i am using 14443a i get uid but next sequence i dont know .]]></description>
      <category>Tags / Transponder</category>
      <guid isPermaLink="true">http://rfid-handbook.de/forum/read.php?8,3144,3861#msg-3861</guid>
      <pubDate>Mon, 21 Jun 2010 12:20:39 +0200</pubDate>
    </item>
    <item>
      <title>Re: RFID Tag with Dual Port EEPROM</title>
      <link>http://rfid-handbook.de/forum/read.php?8,3575,3628#msg-3628</link>
      <author>sanchez251</author>
      <description><![CDATA[Hallo Zied!

Ich bin ebenfalls auf der Suche, nach so einem Spezialtranponder... Bei mir gehts um die Technikerarbeit...

Hast du schon Erfolg gehabt?


For all englisch speaking guys:

We are searching for a RFID-Tag-EEPROM with two types of interfaces. One for RF more precisely on HF or UHF, and one as SPI or I2C.

It's like the Dual-Access-EEPROM from Atmel AT24RF08. Does someone knows a type like that?

Thanks for help!

Mit freundlichen Grüßen / best regards

W. Tissen]]></description>
      <category>Tags / Transponder</category>
      <guid isPermaLink="true">http://rfid-handbook.de/forum/read.php?8,3575,3628#msg-3628</guid>
      <pubDate>Wed, 25 Nov 2009 14:26:19 +0100</pubDate>
    </item>
    <item>
      <title>Passive transponder coding (433.92)</title>
      <link>http://rfid-handbook.de/forum/read.php?8,3612,3612#msg-3612</link>
      <author>archibald</author>
      <description><![CDATA[Hi and welcome. 
I am looking for some information about programming passive transponders in 433.92 frequency (glass transponder). One of transponders I am using got broken and for safety reasons I want to clone it. Can you please what devices I need to read existing transponder and to write this information onto a blank one. 
Thanks in advance for your help.]]></description>
      <category>Tags / Transponder</category>
      <guid isPermaLink="true">http://rfid-handbook.de/forum/read.php?8,3612,3612#msg-3612</guid>
      <pubDate>Tue, 03 Nov 2009 10:37:07 +0100</pubDate>
    </item>
    <item>
      <title>help:Reading from 1K Mifare card (CL RC 632,ISO14443A)</title>
      <link>http://rfid-handbook.de/forum/read.php?8,3597,3597#msg-3597</link>
      <author>yangjiehhuc</author>
      <description><![CDATA[Hi guys,
i met the same problem with &quot;Reading from 1K Mifare card (CL RC 632,ISO14443A)&quot;,but i can not find solutions from that message. could someone give me the suggestion to solve the problem? thank you so much for your help.my Email:  yangjiehh@gmail.com 

- when I read from the card without authentication, the answer from the card is one byte number equal 4
example:
&gt; 0x04 //answer

- when I read with authentication, the answer is random one byte number equal from 0 to 15
example:
 0x0X //answer

can you somebody help me? Where is the problem? Why isn't the answer 16 byte of data?

I have a plain 1K card with keyA 0xFFFFFFFFFFFF
Maybe is not correct autorization, but when I used another keyA, authen1 and authen2 commands not finish.]]></description>
      <category>Tags / Transponder</category>
      <guid isPermaLink="true">http://rfid-handbook.de/forum/read.php?8,3597,3597#msg-3597</guid>
      <pubDate>Fri, 23 Oct 2009 05:56:05 +0200</pubDate>
    </item>
    <item>
      <title>PIC with active tag interface</title>
      <link>http://rfid-handbook.de/forum/read.php?8,3585,3585#msg-3585</link>
      <author>vsbbharat</author>
      <description><![CDATA[hi,
  i am working on rfid active tag based pic controller based projects.Does anybody has idea about interfacing with them.Please mail me.

My id : vsbbharat@gmail.com]]></description>
      <category>Tags / Transponder</category>
      <guid isPermaLink="true">http://rfid-handbook.de/forum/read.php?8,3585,3585#msg-3585</guid>
      <pubDate>Sat, 10 Oct 2009 06:23:29 +0200</pubDate>
    </item>
    <item>
      <title>How can I read full EEPROM from pcf7942(hitag2)?</title>
      <link>http://rfid-handbook.de/forum/read.php?8,3583,3583#msg-3583</link>
      <author>coolibin</author>
      <description><![CDATA[I need info what commands to use to read full eeprom from this transponder? What protocol? Is this doc in the internet?]]></description>
      <category>Tags / Transponder</category>
      <guid isPermaLink="true">http://rfid-handbook.de/forum/read.php?8,3583,3583#msg-3583</guid>
      <pubDate>Fri, 09 Oct 2009 11:58:30 +0200</pubDate>
    </item>
    <item>
      <title>Re: RFID Tag with Dual Port EEPROM</title>
      <link>http://rfid-handbook.de/forum/read.php?8,3575,3581#msg-3581</link>
      <author>zied</author>
      <description><![CDATA[Hallo,
Ich habe etwas gefunden
von ATMEL: AT24RF08                  1K x 8 Dual Access EEPROM with RFID and Serial Interfaces.

Leider die RFID Interface ist im frequenzbereich 125 KHZ.
---&gt; Kleine Reichweiter  
---&gt; größe Anntenne.


kann jemanden einer 1K x 8 Dual Access EEPROM with RFID and Serial Interfaces, die in 13,56 MHZ funktioniert?? oder einer andere Frequenz?
Grüße
Z. Mabrouk]]></description>
      <category>Tags / Transponder</category>
      <guid isPermaLink="true">http://rfid-handbook.de/forum/read.php?8,3575,3581#msg-3581</guid>
      <pubDate>Thu, 08 Oct 2009 16:20:52 +0200</pubDate>
    </item>
    <item>
      <title>RFID Tag with Dual Port EEPROM</title>
      <link>http://rfid-handbook.de/forum/read.php?8,3575,3575#msg-3575</link>
      <author>zied</author>
      <description><![CDATA[Hallo,

Ich bin auf der suche nach einen Tag, der einer EEPROM Speicher, und einer I2C BUS Interface hat.

Der Tag soll über die HF Interface Slave, und über die I2C Interface Master sein.
Fall Sie Produkte aus der Industie kenne die dieses voraussetzung erfüllen. Bitte ich Sie die mir zu nennen.

Ps.: Davon hängt meinen Diplomarbeit.

Grüße aus Hannover
Zied]]></description>
      <category>Tags / Transponder</category>
      <guid isPermaLink="true">http://rfid-handbook.de/forum/read.php?8,3575,3575#msg-3575</guid>
      <pubDate>Tue, 06 Oct 2009 16:25:36 +0200</pubDate>
    </item>
    <item>
      <title>Matching network</title>
      <link>http://rfid-handbook.de/forum/read.php?8,3562,3562#msg-3562</link>
      <author>ronghe77</author>
      <description><![CDATA[Hi,

I'm trying to figure how what is a feeding network (or some called it matching network).

1) What does a feeding network contribute to a RFID Tag / Reader ? Main function is to ensure impedance is matched between Tag antenna to ___ ?

2) Can feeding network be realized simply by adjusting the width of the microstrip to change the impedance? Or do i need passive components ?

Are there any reference which i can refer to for more info? 

Many Thanks]]></description>
      <category>Tags / Transponder</category>
      <guid isPermaLink="true">http://rfid-handbook.de/forum/read.php?8,3562,3562#msg-3562</guid>
      <pubDate>Fri, 25 Sep 2009 08:00:01 +0200</pubDate>
    </item>
    <item>
      <title>Re: Reading from 1K Mifare card (CL RC 632,ISO14443A)</title>
      <link>http://rfid-handbook.de/forum/read.php?8,3144,3535#msg-3535</link>
      <author>rajyalakshmi</author>
      <description><![CDATA[Hi chopin,

Even iam facing the same problem.program is freezing by request command.What changes i have to make in basic library rooutine from NXP.HOw you solved your problem.

Thank you.]]></description>
      <category>Tags / Transponder</category>
      <guid isPermaLink="true">http://rfid-handbook.de/forum/read.php?8,3144,3535#msg-3535</guid>
      <pubDate>Mon, 14 Sep 2009 11:01:33 +0200</pubDate>
    </item>
    <item>
      <title>Are Dual Protocol Tags - 15693 &amp; 14443/a - Possible?</title>
      <link>http://rfid-handbook.de/forum/read.php?8,3492,3492#msg-3492</link>
      <author>KrisTen</author>
      <description><![CDATA[Just as the topic reads are dual protocol tags, 15693 and 14443/a possible. There are several 15693 and 14443/b tags (picopass for one), why not 14443/a? 

Kris]]></description>
      <category>Tags / Transponder</category>
      <guid isPermaLink="true">http://rfid-handbook.de/forum/read.php?8,3492,3492#msg-3492</guid>
      <pubDate>Mon, 24 Aug 2009 23:42:52 +0200</pubDate>
    </item>
    <item>
      <title>help</title>
      <link>http://rfid-handbook.de/forum/read.php?8,3476,3476#msg-3476</link>
      <author>laflouf</author>
      <description><![CDATA[can some body give me a csharp code to write and read from a rfid(mifare 1K)

the card is connected to my pc via a serial port;and the data readed will bi stocked in database sql server.
pleas help i m waiting]]></description>
      <category>Tags / Transponder</category>
      <guid isPermaLink="true">http://rfid-handbook.de/forum/read.php?8,3476,3476#msg-3476</guid>
      <pubDate>Tue, 04 Aug 2009 17:49:56 +0200</pubDate>
    </item>
    <item>
      <title>Re: Passive RFID IC (Tag) with external communications interface</title>
      <link>http://rfid-handbook.de/forum/read.php?8,3454,3475#msg-3475</link>
      <author>shakaibsafvi</author>
      <description><![CDATA[Hi,
EM MICROELECTRONIC EM4134 is a chip with limited memory but you can use their ultra lowpower EM6819 uC to interface with it and use its internal Data Memory.

ST also has a solution, with M24LR64K.

also
www.IDS-MICROCHIP.com
Smart Tag SL13A
check it out !!!

these chips are ISO/IEC 14443/15693 compatable, hence not in UHF range but operate in 13.56MHz (~7KHz)

Cheers.

Shakaib Safvi
University of Southampton, UK]]></description>
      <category>Tags / Transponder</category>
      <guid isPermaLink="true">http://rfid-handbook.de/forum/read.php?8,3454,3475#msg-3475</guid>
      <pubDate>Thu, 30 Jul 2009 17:35:22 +0200</pubDate>
    </item>
    <item>
      <title>Read and write rfid cart</title>
      <link>http://rfid-handbook.de/forum/read.php?8,3474,3474#msg-3474</link>
      <author>laflouf</author>
      <description><![CDATA[Can anyone provide sample code in CSharp when handheld captures rfid tag data. This data should be displayed in window application form and saved in a database&quot;SQL SERVER 2008&quot;. Since new to this RFID Technology can any one provide the steps followed and sample code to do CHarp application.
pleaaaase help me]]></description>
      <category>Tags / Transponder</category>
      <guid isPermaLink="true">http://rfid-handbook.de/forum/read.php?8,3474,3474#msg-3474</guid>
      <pubDate>Thu, 30 Jul 2009 13:15:33 +0200</pubDate>
    </item>
    <item>
      <title>Low-Budget Transponder</title>
      <link>http://rfid-handbook.de/forum/read.php?8,3469,3469#msg-3469</link>
      <author>volkan</author>
      <description><![CDATA[Hello,
im am searching for low-budget transponder. Memory is not required. Maximum Price 0.12 EUR. Where can I get it? Thx for help.]]></description>
      <category>Tags / Transponder</category>
      <guid isPermaLink="true">http://rfid-handbook.de/forum/read.php?8,3469,3469#msg-3469</guid>
      <pubDate>Thu, 16 Jul 2009 15:39:03 +0200</pubDate>
    </item>
    <item>
      <title>Re: matching vs. efficiency of the rectifier</title>
      <link>http://rfid-handbook.de/forum/read.php?8,3393,3468#msg-3468</link>
      <author>nickagian</author>
      <description><![CDATA[Hi!

Actually, the efficiency of the rectifier defines the amount of the DC power delivered to the load. From this point of view, the efficiency of the rectifier does have influence on the operative range of the tag. After all, the electronics of the tag have a minimum power requirement, not a minimum voltage requirement.

For example, assume that we can achieve the desired DC voltage levels at a certain distance (of e.g. 80cm). However, the output power of the rectifier (which is defined by the efficiency of the rectifier) may not be sufficient to provide the load with the desired current levels.

I hope that I gave you a clearer view of the situation!

Thanks,
Nikos]]></description>
      <category>Tags / Transponder</category>
      <guid isPermaLink="true">http://rfid-handbook.de/forum/read.php?8,3393,3468#msg-3468</guid>
      <pubDate>Thu, 16 Jul 2009 13:40:44 +0200</pubDate>
    </item>
    <item>
      <title>Re: TAG RFID UHF</title>
      <link>http://rfid-handbook.de/forum/read.php?8,3458,3465#msg-3465</link>
      <author>Justice5</author>
      <description><![CDATA[I use the slave as MFRC531 of Mifare Philip, pic 18f4520 as the master and I would like to read what the card but does not work.
can anyone help me to read from the card with the MFRC531.
Thank you in advance]]></description>
      <category>Tags / Transponder</category>
      <guid isPermaLink="true">http://rfid-handbook.de/forum/read.php?8,3458,3465#msg-3465</guid>
      <pubDate>Tue, 14 Jul 2009 10:23:18 +0200</pubDate>
    </item>
    <item>
      <title>Re: RFIDTags.com</title>
      <link>http://rfid-handbook.de/forum/read.php?8,3194,3464#msg-3464</link>
      <author>Justice5</author>
      <description><![CDATA[I use the slave as MFRC531 of Mifare Philip, pic 18f4520 as the master and I would like to read what the card(Tag) but does not work.
can anyone help me to read from the card with the MFRC531.
Thank you in advance]]></description>
      <category>Tags / Transponder</category>
      <guid isPermaLink="true">http://rfid-handbook.de/forum/read.php?8,3194,3464#msg-3464</guid>
      <pubDate>Tue, 14 Jul 2009 10:19:36 +0200</pubDate>
    </item>
    <item>
      <title>TAG RFID UHF</title>
      <link>http://rfid-handbook.de/forum/read.php?8,3458,3458#msg-3458</link>
      <author>andreacere</author>
      <description><![CDATA[Hello Sir, 

Iam doing a project on RFID, 
and wanted ANY information on design and circuitry of passive transceiver RFID UHF


Thank You, 

Regards, 

Cereghetti]]></description>
      <category>Tags / Transponder</category>
      <guid isPermaLink="true">http://rfid-handbook.de/forum/read.php?8,3458,3458#msg-3458</guid>
      <pubDate>Mon, 06 Jul 2009 15:13:47 +0200</pubDate>
    </item>
    <item>
      <title>Passive RFID IC (Tag) with external communications interface</title>
      <link>http://rfid-handbook.de/forum/read.php?8,3454,3454#msg-3454</link>
      <author>nickagian</author>
      <description><![CDATA[Hi all!

I am looking for an IC which implements passive (or battery-assisted/semi-passive) RFID communications at the UHF band and has connections for accessing the memory from an external uP. Does anything exist? Does anyone has something in mind?]]></description>
      <category>Tags / Transponder</category>
      <guid isPermaLink="true">http://rfid-handbook.de/forum/read.php?8,3454,3454#msg-3454</guid>
      <pubDate>Thu, 25 Jun 2009 11:32:56 +0200</pubDate>
    </item>
    <item>
      <title>Re: ISO11784 / 5 Data format</title>
      <link>http://rfid-handbook.de/forum/read.php?8,2257,3451#msg-3451</link>
      <author>mediumrate</author>
      <description><![CDATA[Hi Joe,

Long time since your post I see, but did you ever get a response to this question?
Thanks]]></description>
      <category>Tags / Transponder</category>
      <guid isPermaLink="true">http://rfid-handbook.de/forum/read.php?8,2257,3451#msg-3451</guid>
      <pubDate>Wed, 17 Jun 2009 07:23:31 +0200</pubDate>
    </item>
    <item>
      <title>RFID - costs and benefit</title>
      <link>http://rfid-handbook.de/forum/read.php?8,3408,3408#msg-3408</link>
      <author>ChrGe</author>
      <description><![CDATA[Hi everybody,

I'm writing my thesis about RFID. One main aspect of my thesis will be the analysis of the cost and benefit of the system. Additionally I will design a returnable system for global used RFID tags.

For this reason I need information about cleaning the info on rfid tags. Are there any hard problems to switch a read-only system to a rewritable system. Everybody that has experience in this field is called to write me an email to 

ceeeg@hotmail.com

My question is about how to measure the benefit, are there any controlling tools known for logistics key data that are especially related to RFID?

Or does anybody know usefull literature or links for this topic?

Any help is appreciated.

Thanks
Chris

Once again my email: ceeeg@hotmail.com

Every person that helpes me will be announced in my acknowledgement in my thesis]]></description>
      <category>Tags / Transponder</category>
      <guid isPermaLink="true">http://rfid-handbook.de/forum/read.php?8,3408,3408#msg-3408</guid>
      <pubDate>Mon, 04 May 2009 13:28:41 +0200</pubDate>
    </item>
    <item>
      <title>High Temperature Transponder</title>
      <link>http://rfid-handbook.de/forum/read.php?8,3395,3395#msg-3395</link>
      <author>Dave</author>
      <description><![CDATA[Hello,

We are looking for a high temperature transponder to use in our application. At present we are using a glass transponder from TI 23mm x 4mm and require a tag the same size but one that will work at 150 Deg C.

Does anyone know of such a tag, or anywhere that would be interested in the manufacture of one ??

TIA
Dave]]></description>
      <category>Tags / Transponder</category>
      <guid isPermaLink="true">http://rfid-handbook.de/forum/read.php?8,3395,3395#msg-3395</guid>
      <pubDate>Wed, 01 Apr 2009 09:12:13 +0200</pubDate>
    </item>
    <item>
      <title>ID-12 writing</title>
      <link>http://rfid-handbook.de/forum/read.php?8,3394,3394#msg-3394</link>
      <author>ayung</author>
      <description><![CDATA[Hi All,

I am use ID-12 RFID base reader type, 
I got a problem with writing of the data to RFID tags.
I don't know the application for RFID Writing. 
Please help me.

Thanks.]]></description>
      <category>Tags / Transponder</category>
      <guid isPermaLink="true">http://rfid-handbook.de/forum/read.php?8,3394,3394#msg-3394</guid>
      <pubDate>Wed, 01 Apr 2009 04:55:13 +0200</pubDate>
    </item>
    <item>
      <title>matching vs. efficiency of the rectifier</title>
      <link>http://rfid-handbook.de/forum/read.php?8,3393,3393#msg-3393</link>
      <author>Stefano82</author>
      <description><![CDATA[Hi, 

Theoretically, if an antenna is perfectly matched with the load (for example the rectifier), the amplitude of the voltage on the load will be the antenna amplitude over two! And this result is indipendent by the current absorbed by the load. So, in condition of matching the efficiency of the rectifier has not influence on the maximum operative range of the tag. 

Is it correct? 
Why does people try to maximize the efficiency of the rectifier and not to minimize its input voltage need to work? 
The two approach are different because of the input impedence. 

Thanks a lot... 
Stefano]]></description>
      <category>Tags / Transponder</category>
      <guid isPermaLink="true">http://rfid-handbook.de/forum/read.php?8,3393,3393#msg-3393</guid>
      <pubDate>Tue, 31 Mar 2009 14:34:48 +0200</pubDate>
    </item>
    <item>
      <title>EPC C1G2 tag requirements</title>
      <link>http://rfid-handbook.de/forum/read.php?8,3362,3362#msg-3362</link>
      <author>jancambodia</author>
      <description><![CDATA[Hi

I would like to know if there are any hardware performance requirements for EPC C1G2 tags, like a minimum tag sensitivity, RCS, power reflection coefficient, etc...

Thanks

Jan]]></description>
      <category>Tags / Transponder</category>
      <guid isPermaLink="true">http://rfid-handbook.de/forum/read.php?8,3362,3362#msg-3362</guid>
      <pubDate>Thu, 12 Mar 2009 10:05:46 +0100</pubDate>
    </item>
    <item>
      <title>i need hehp</title>
      <link>http://rfid-handbook.de/forum/read.php?8,3355,3355#msg-3355</link>
      <author>ahmedrabiee</author>
      <description><![CDATA[hi everyone 

i want to make RFID System but i need information help me to make tag and reader if any one has material in this feild send me this material   


this is may mail 

 ahmed_rabiee2007@yahoo.com]]></description>
      <category>Tags / Transponder</category>
      <guid isPermaLink="true">http://rfid-handbook.de/forum/read.php?8,3355,3355#msg-3355</guid>
      <pubDate>Tue, 10 Mar 2009 13:00:25 +0100</pubDate>
    </item>
    <item>
      <title>Signal to activate a transponder</title>
      <link>http://rfid-handbook.de/forum/read.php?8,3312,3312#msg-3312</link>
      <author>sebastian165</author>
      <description><![CDATA[Hello everybody! I have some questions and hope you can help me. I have to realize a data transmission from a µC to a Transceiver and to a RFID Transponder and back. I have a Transponder with an HITAG S256 Chip. But I don't know how to activate it. I know that I have to send a UID Request to adress the Transponder. In the datasheet (page30) there is mentioned that I can send for example &quot;1100x) but then the data that are sent back coded in AC(Anticollison) but I need the data in Manchester code. What do I have to send or can I send what i want. And my next question is, what is the answer from the Transponder. I know that it starts to send a SOF(Start of Frame) which is also called Header. Is this the configuration that the µC knows which configuration the Transponder has. I hope anybody can help me. Thanks]]></description>
      <category>Tags / Transponder</category>
      <guid isPermaLink="true">http://rfid-handbook.de/forum/read.php?8,3312,3312#msg-3312</guid>
      <pubDate>Thu, 05 Feb 2009 21:25:21 +0100</pubDate>
    </item>
    <item>
      <title>RFID Project</title>
      <link>http://rfid-handbook.de/forum/read.php?8,3311,3311#msg-3311</link>
      <author>Aymanz87</author>
      <description><![CDATA[I am building an integrated RFID system capable of quickly identifying objects by their RFID tags. The system will be able to read and write Tags. Read data will be store in a Database through a Middleware. 

I intend this system to be installed in Libraries. By automatically identifying the 
Books and collecting their info ... 

At the bottom u will find pix for the system block diagram and flowchart 


I was wondering : 

what MCU to use and how to make it support graphical LCD? 

How the communication between PC and reader will work ... to read data and write tags ... what programing language to use ? 

what is the construction in the frame pattern sent between Tag and Reader? 

Do u got any links or books that can help me through this project? 



http://img515.imageshack.us/img515/6626/slide2gr9.gif
http://img166.imageshack.us/img166/6382/slide5bh0.gif]]></description>
      <category>Tags / Transponder</category>
      <guid isPermaLink="true">http://rfid-handbook.de/forum/read.php?8,3311,3311#msg-3311</guid>
      <pubDate>Wed, 04 Feb 2009 11:56:03 +0100</pubDate>
    </item>
    <item>
      <title>rfid tag potentiality</title>
      <link>http://rfid-handbook.de/forum/read.php?8,3310,3310#msg-3310</link>
      <author>thgnss</author>
      <description><![CDATA[Hi all, I'm investigating rfid tags potentiality and I'm wondering if a tag can hear other tag message.In the sense,  Can anyone answer my question or redirect me to documentation that cover this topic?
thanks]]></description>
      <category>Tags / Transponder</category>
      <guid isPermaLink="true">http://rfid-handbook.de/forum/read.php?8,3310,3310#msg-3310</guid>
      <pubDate>Tue, 03 Feb 2009 14:45:06 +0100</pubDate>
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