In management theory there is something called "the rule of 3"; for example, only 3 main competitors usually survive in any domestic market.
In cars, the 3 boiled down to Ford, GM, and Chrysler.
We were at three domestically with BE, CE, and Harris. And it sure does seem like Nautel has replaced or displaced one of the three.
With Nautel firmly entrenched in the US market, it does seem like Harris+ ??? (one of the existing two) would reduce the domestic market back to three. CE is the only fit for radio transmission, and they need the solid state products - they compliment their core business.
In fact, it might be possible to view ERI, Jampro, and Shively as the 3 in FM antennae.... Dielectric is the odd company out in FM antennae.
Honestly, I always thought that SPX would announce divestiture of Dielectric to one of the 3 previously mentioned companies. Would have thought that Dielectric would have been spun off way before Harris BCD.