[NLRS] 222 ???

[Gerald]

On Tue, 2005-09-13 at 22:24 -0500, christenson at charter.net wrote:
> 
> Looking to add 222 to the operation. I have 2 rigs that can operate on the typical 10 meter inputs. Issue is that both of them the can only transmit a minimum of 5 watts. Every transverter I have seen out there wants a maximum of 100 mW. What do a ham do? The preferred rig is a TS-2000, currently the 6 M rig, or my faithful IC-706m2g. Don't want to put too much into it but then again don't want crap. Any ideas out there? Any info greatly appreciated.
> 
> I may even drop the ic-910 and pick up a ft-736r with all the mods - 6 meters?
> 
> KC0REO
> 
> Kris

DEMI has a transverter interface that will take 5 or 10 watts.

You can simply put in an attenuator, but the receive side may need some
extra gain to overcome the attenuator if its in both the receive and
transmit line. Or you may be able to drop the exciter power further by
putting a DC bias on the external ALC line. Some rigs when turned down
have a pulse of output before they go to low power.

The transmit mixers tend to need only a milliwatt or just a bit less so
there's already attenuation in the transverter.

I have modified the 220 module in my FT-736R and it hears better there
than on 2m. But its OK on 6m. With a couple FT-857D in the shack now, I
should be selling that 6m module and 150 watt Mirage amplifier and keep
looking for a 1296 module for the 736. Any trades out there?

-- 
73, Jerry, K0CQ
Dr. Gerald N. Johnson, electrical engineer
All content copyright, Dr. Gerald N. Johnson