I don't remember the frequencies but they were heard late at night Baghdad local time. It did seem kind of creepy at the time. Maybe they were instructions to spy handlers or maybe just something to keep their opposite number up and worried.
On several nights, I copied some of it down but could not make any sense of it. It could have been a one-time-pad code system. It was not a message being read by a speaker. It was a female voice that sounded like it was controlled by a computer program in the way the voice is with AT&T’s directory assistance. Here is an example. Imagine a droning, monotone female voice and you will get a good idea.
Message, message, message, message, message.
Group four, group four, group four, group four.
November, delta, sierra, alfa, echo, hotel, lima, bravo, quebec, uniform, papa, alfa, lima, tango, charlie, victory, foxtrot, delta, oscar, zulu, india, xray, hotel, juliet, mike, whiskey, sierra, november, lima, uniform, alfa, bravo, golf, ..................................... (This would go on for about 25 min.)
Message, complete.