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[aprssig] 9600 baud capable radios

John Ackermann N8UR jra at febo.com
Wed Feb 2 20:31:35 UTC 2005


Ralph Milnes wrote:

> George says the V7A and D700 are OK. Henk do you agree with that?  
> 
> George says V7A and D700 do need a good signal path,  and Gerhard points out
> that the minimum TXDs on the V7A and D700  are relatively high and thus
> reduce the overall effectiveness of quick 9600 exchanges.. so they are not
> ideal for a 9600 baud network (for example at the node).
> 
> But I want to confirm whether or not  the V7A and  D700 (and the D7A?) will
> still function at 9600 as advertised. The answer will be useful for users
> who are trying to use these Kenwood radios for "simple" communication on a
> 9600 network.

A few years ago I did a frequency response test of the V7A, and the 
results were bad on 1200, OK on 9600 TX, and marginal on 9600 RX.  See 
http://www.febo.com/packet/layer-one/kenwood-tmv7a.html for details. 
Note that I didn't test turnaround time or other factors that would 
influence throughput.

73,
John




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