Has anyone used this amp?
http://www.rfsource.gr/pm60f2-am-pallet.html
If so, can the power output be adjusted down to a few Watts or so? Can the board be powered from less than 28 VDC?
I'm thinking that this may be a good final amp to use with a SSTRAN or similar transmitter for CC use.
Joe
Using that RF amp to make a 100mW type Part 15 transmitter work for Carrier Current would need one vital modification, and that would be a RF power output variable control, because 60-Watts is way too much power for a leagl CC operation.
Depending on the efficiency of the coupler used to connect to the power lines, you might only need as little as 2-Watts or 5-Watts.
Hey - once you get this all figured out, will you post your findings? I think neut-injection cc in my area would be awesome.
Anything I figure out always gets posted here, and I hope everyone who has a building project or a radio experience shares it with everyone.
Meantime, there is a lot already published here on this website and other websites about the carrier current subject.
Also, the grand master of CC, RFB, is the guest on 3 episodes of The Low Power Hour on the CC topic
The specs. on this amp. indicate a gain of 27 dB which is a power gain of 501. A 100mW input power signal would produce 50 Watts out. The best way to control the power out of a linear amplifier is to attenuate the input drive power. If one wanted 5 W out then the input needs to be 10 mW. The attenuator should be either a Tee or Pi resistor network to maintain the load impedance to the source and the drive impedance to the amplifier. Note that the powers are for the attenuator in the circuit and the loading due to the attenuator on the source and the loading due to the amplifier on the attenuator would have to be accounted.
It would not be a good idea to "derate" the amplifier by reducing the supply voltage since this probably would result in distortion.
Neil