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On
occasions the chart refresh rate can seem slow - why ?
The refresh rate on the chart data is to the nearest second
and represents a new 'trade' in the tick feed.
If there is no new data then the chart will not refresh.
The
FOREX data feed received in RTTESS from IQfeed is the tick
feed direct from either FXCM or Barclays. No data is missed
out and it is not delayed (see note 1). RTTESS collects
the data to the nearest second. The data and market provided
by FXCM and Barclays is the market at their banks. Because
there is no central exchange or clearing organization for
Forex transactions, every contributor (bank) has a different
"market". The feed from FXCM or Barclays is not
going to tick as often as something from Esignal where they
have GTIS forex providing multiple contributors via a composite
tick. Other suppliers may also use composite feeds.
Comparing the data to a Spread Betting organisation may
show differences because the Spread Betting organisations
can alter their prices as they wish and move the spreads
to suit their own preferences.
For further details on the data feed by IQFeed please contact
IQfeed
Out
of hours data
The refresh rate will be slower at times when the volume
of trading is lower.
Using
the 1 minute chart to check data
If the data feed seems slow when it should not be this can
be checked by :
1. Load a 1 minute chart for the same symbol.
2. Switch on the volume in the lower part of the chart
3. Switch on the Floating Data Box.
4. Examine the volume figures for the 'minute' that there
seemed to be slow data.
5. If the volume was very low or zero then this would confirm
that the number of trades were low at the time and the slow
refresh rate was correct.
Note : A fresh 1 Minute chart is built from the historical
data provided by the data supplier.
Internet
Connections
A poor Internet connection can account for a slow refresh
rate.
Test the connection by temporarily using a different Internet
connection if possible.
Wireless
Network Connections
On some occasions wireless connections between the computer
and the Internet can have an effect on the data feed. The
protocols involved in wireless connections are usually 'tougher'
than a hard wired link which can effect the rate of data
transfer.
Test the connection by temporarily using a fully wired connection
if possible.
Firewalls,
Virus Checkers, and other software conflicts
On some occasions firewalls, virus checkers and other
software can conflicting with the data feed connections.
Consult with your suppliers of these items to establish
how they can be set to not interfere with the data connection.
Popup
Blockers
On some occasions popup blockers can prevent the fresh
data being received.
It may be that the sensitivity is set too high.
Consult with your supplier to establish how they can be
set to not interfere with the data connection.
Latest
Software
There may be an update on the latest software.
Click Here for the
latest version of RTTESS.
Click
Here tor the latest version of IQfeed.
-------------------------------------
Note
1 : A delayed feed may be available where exchanges are
not subscribed to.
Note 2 : The Data feed from Tullet was replaced by FXCM
at the end of 2008.
Note 3 : Historical data loads via a differnet method to
the onging updates.
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Reference:
Q080618b
Written : 18 June 2008
Revised : 30 March 2010
TESS Real Time - Version 1.1.14
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