(****) Dual Frequency Desktop Reader :reader_usb:

Dual Frequency Desktop Reader to replace my original KBR1

Prefix why I was looking to replace my KBR1

I had one of the original KBR1 readers and have had it for many years, but the performance was never great, and when you see the size of the antenna, you understand why, although it works well with a full sized card.

that version has been replaced / upgraded. Link to the newer more reliable KBR1

This is what I chose to try out

image

From the get go, I was not sure how I could use a dual frequency implant (NExT) in a manor that I could consistently read the UID I wanted.
So
The first thing I did was open it up to check the antenna placements.
View of the the bottom :peach:

Under the sticker

Remove the 2 small Phillips screws
Then gently pry open, there are 2 tabs at the opposite end of the USB, they release easily

I simply moved my LF antenna sideways.
(It was basically the LF copper antenna inside framed by the HF PCB antenna,
I chose to move the LF antenna to the Right Hand Side, So I could swipe LF from Right and HF from Left.)

The Piezo Buzzer is mounted on the board under the HF antenna, to you need to desolder the HF antenna (mounted on header pins)to get access to, glue fill or remove…

Then there was one more problem.
It looks ugly

SOLVED

This works well and without fail so far, I can choose LF or HF accordingly by the side I approach from

Technology Tested

  • Reads xSeries, 5mm - contact with reader required, Flex a little more.
  • If its not listed, I did not test it

LF

:freq_lf_125khz:

WORKS WITH

EM41**

DOESN’T WORK

HID
AWID
Indala
FDX-B
Fairpoint
Gallagher
Viking

HF

:freq_hf_13_56mhz:
WORKS WITH

DESFire EV1
DESfIre EV2
DESFire 4 byte
DESFire 7 byte
NTAG216
Ultralight
Mifare S50
Mifare S70
APEX Flex
NTAG I2C Plus

DOESN’T WORK

iso15693 iCODE

Rating by the community :robot:

PLEASE ONLY VOTE IF YOU HAVE ONE OR HAVE USED ONE

:star: = :poop:

:star::star: = :pleading_face:

:star::star::star: = :neutral_face:

:star::star::star::star: = :grin:

:star::star::star::star::star: = :trophy:

AliExpress Desktop reader
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0 voters

I gave it :star::star::star::star: because it works with xSeries, many HF but I removed 1 :star: because there are limited LF mode options
LINK to buy

6 Likes

I found something interesting; I thought you guys may like to see the the duty cycle, so I grabbed my wallet DT Diagnostic card, I put it on the reader, and No LF LED !!! So I thought, it must have broken in my wallet.
I had 2 other unused :card_diagnostic_dt:
I tried them, they didn’t work either…weird because it’s still reading my LF implants

:thinking:
I grabbed another field detector…this one worked.
So if you were still wondering, it appears to be an almost constant but very rapid duty cycle

2 Likes