I would use a directional coupler such as a HP778D to get a 20 dB
sample. Then pad the sample port with a 30 dB pad. That will get
you to 1 mW into the SA.
Note that the 778d is rated for 50 watts cw.
There are couplers made for FM transmitters. You can also find a
Bird sampler slug that will go in a Thruline wattmeter.
Another option would be to build one out of coax. It is a pretty
simple device.
Maybe just a short stub antenna and grab it off the air?
Just be careful not to overload the SA input. The mixer is not
very forgiving.
On 5/23/2019 3:50 PM, DW wrote:
I should add the 100W will be driven to an antenna on a tower, I
don't have a sampler so I'm limited to what I can sample,
hopefully the transmitter has a sample port
