19 set vs. SCR 508 antenna mounts mystery...

[Don Dingwall]

All:
I've run into a conundrum while researching installation of 19 sets in the M4A3E8 Shermans we got from the US while in Korea.

Problem is this:
-LdSH, RC Sigs and 25 Brigade diaries mention nothing about switching to 19 sets from US SCR series.
-I stumble across a one line entry in the diary of 191 Workshop for July 7 1951 stating that Lt. So and So and his team have just returned from a week-long visit to LdSH installing 19 sets in all the C Sqn Shermans.
-Problem now is that I only see US style radio aerial bases and antennas even two years later.
-Some photos show clearly a short 2 foot antenna a/la 19 set, but also with several other antennas over 6 feet high.Some tanks have as many as five antennas showing at once.

We did use 300 (later #31 sets) to comm with infantry and arty, but the antenna bases still appear to be US. Can a 19 set be hooked up to the antenna base and wiring of an SCR 508?

In the first attached photo (SF 1668) from May 1951, only days after arrival, it clearly shows the commander using an H16U headset, indicating an SCR 508 radio set up, which makes sense as this would be prior to 19 set installation.
Second photo (SF 4258), in February 1952, shows a short antenna and two long, with what appear to be SCR antenna bases.

Third photo (SF 5491) from November 1952 also has what appear to be SCR and 19 set antennas and bases.

Any help would be greatly appreciated.
Thanks
Don