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
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 
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
WORKS WITH
EM41**
DOESN’T WORK
HID
AWID
Indala
FDX-B
Fairpoint
Gallagher
Viking
HF
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 
PLEASE ONLY VOTE IF YOU HAVE ONE OR HAVE USED ONE
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0 voters
I gave it because it works with xSeries, many HF but I removed 1 because there are limited LF mode options
LINK to buy
