kenwood TM700

[chappaz alexandre <alexandre.chappaz@data-tools.com>]

hi guys

I am a newbie in ham radio, and for my job I use 2 Kenwood TM700 transceivers 
for a numeric packet radio transmission (Kenwood TM700 has an build-in TNC),

 For the moment the TNC-radios are discussing in an half duplex mode - that 
means one radio emmits a packet and stops, the second radio receives the 
packet and answers and so on and so on... My problem is that in that case, 
the maximum speed is  only one packet ever half second is emmited. This is 
due (to me) to the time the radio emettor needs to bring the power up and 
running for emitting the packet. The problem is that once the packet is sent, 
the radio stops the emission, that  means it has to start up again for the 
next packet. I didn't find any mode for telling the emetor to stay up even if 
there's no packet to transmit....... So I'd like to know if someone could 
help me eather for configuring properly the built-in TNC or to use a 
soundcard modem in the same purpose 
( have numeric transmission with the less delay possible in fact ).


Thank a lot
(sorry for the not perfect english i am french)
Alex Chappaz