convert an a5 to an a9 head

kd7tqn · Post by **kd7tqn** » Mon Mar 27, 2006 11:11 am

hey all, is it possible to convert an a5 d43kma7ja5bk to use and a9 system 9000 head?
would i need a new mlm or will bit banging do the trick.
i should ask this before i go out and buy a system 9000 head lol.

i already have all the parts to make it remote accept for the head.

also if it can be converted can i use the regular remote mount cable or do i need to buy a sysem 9000 cable.

thanks
Jason

jmr061 · Post by **jmr061** » Mon Mar 27, 2006 11:37 am

Yes bitbanging will do it, and an A9 head requires the systems 9000 remote mount cable.

Jason

kd7tqn · Post by **kd7tqn** » Mon Mar 27, 2006 12:33 pm

okey, thanks

found a head on ebay, model hcn1047a
will this work?

or how bout an hcn1063a

thanks

jmr061 · Post by **jmr061** » Mon Mar 27, 2006 1:49 pm

I'd get the 1063, look for 1073 as well. The ebay market has been flooded lately with these and they are CHEAP.

Jason

60hzEE · Post by **60hzEE** » Mon Mar 27, 2006 2:12 pm

KB9KST wrote:Yes bitbanging will do it, and an A9 head requires the systems 9000 remote mount cable.

Jason

The Spectra remote cable is all that you need. Its not a systems 9000 remote cable, just a Spectra remote cable. The newer one, not the older one with the 15 pin connector dangle. A5 and A9 heads use the same cable. Don't forget to apply 12V to the green and orange wires or it won't power up. You can pitch the DB-15 accessory cable, or mod it for programming.

Also, the older A9 heads with DIP eeproms require that you ground the mike audio line or you won't be able to write to them.