RD985 DIRECT MODE

[ajo]

Hi everyone

i want to know if hytera's RD985 can work in direct mode, wich mean he wont repeat and the TX frequency and RX frequency will be the same exact.

i sow that in repeater path i can change to basic mode but i am not sure it can be the same the rx and tx frequencies could br the same...

Thanks!

joe

 

[speedway_navigator]

My RD982 won't take the same freqs for TX and RX, no reason to. Doing that makes the repeater a simplex base station.
My only options for operation mode are regular or XPT.

 

[ajo]

Thanks Jay

thats the issue...that i want the repeater to be a simplex base station , from some reasons.

it would be great if there is a trick to do so.....

 

[speedway_navigator]

I think you're screwed if you are using DMR but analog lets you scan.
You could put your RX in one channel and the TX in another and set scan TX mode to designated channel.
I got CPS to do this in a code plug but don't have access to a repeater to test it.

There was a base station mode option but I think it went away with ver 9 firmware, I don't see it anymore.

 

[ajo]

Thanks!
you mean that for example i should power on channel 2 and set scan to designated channel 1 ( channel 2 RX = channel 1 TX ) ?
this configuration suppose to be valid on repeater?

about the base mode havn't so it in firmware 9 and 8....

 

[speedway_navigator]

Yes and have scan turned on automatically. I would put a dummy RX freq in the TX channel just to make sure it doesn't find some activity.

 

[ajo]

Ok,
and in the RX channel i should set the repeater path to basic mode instead of repeater mode so it will be sort of simplex?
if scan turned on automatically its always scan ?

 

[speedway_navigator]

If you want 464.500 try
ch1 rx 380.000 or something not likely to be used, tx 464.500
ch 2 rx 464.500 tx 469.500
scan on, designated TX ch 1
have repeater on ch 2

 

[ajo]

thanks
will do the same ( only with vhf ...) .
will update if there is something interesting.
joe

 

[ottosykora]

Just Q:

how is it about the receiver protection when trying to tx/rx on same freq? On a reperater, there are two connectors, one tx , other rx. Therefore I asume that there is not really some correct switch over between tx and rx.
Clearly one can have two antennas in vertical separation according to frequency or some complex external circulator etc, but still, I would have thoughts of harming the receiver one day.
How is it solved in such cases?

 

[speedway_navigator]

Just found this option to turn on base station mode in the buttons section. I'm out of the shop and won't be able to test it this week.