Nandblasting not working in one xo

[James Cameron]

On Tue, Jul 03, 2012 at 11:04:07AM +0545, Roshan Karki wrote:
> I'm sorry I never noticed the period. Actually I was typing one
> command per line and thought . was for period. With dot I'm getting
> 0 as result.

Sorry about that.  The Forth word . pops an item from the stack and
prints it as a number in the current radix.

Okay, this means that during 300ms of listening on the specified
channel, the wireless device was unable to receive any of the
multicast packets from the sender.

The transmit power used by the NANDblaster sender is likely to be much
lower than the transmit power used by your access point.  The result
of the RF link budget [1] may not allow successful receive.

> You are right. There is around -20 difference between working and
> this xo. 

Try placing this XO with the antennas 25cm from the sender, with the
antennas of both XO set vertical.

I'm now convinced you have an antenna cable problem that needs
maintenance.  There is likely to be about 20 dB extra loss in the
cables, compared to the working XO.

As an optimisation, you can also use test-antenna to find which XO has
the best RSSI, and use that XO as the NANDblaster sender.  A high RSSI
also means the XO will transmit better, in most cases.

References:

1.  http://en.wikipedia.org/wiki/Link_budget

-- 
James Cameron
http://quozl.linux.org.au/