PTT Voice Mirrors (Part 1): Circa 1970's
/Many thanks to SRAA contributor, Dan Greenall, who shares the following recording and notes:
Broadcaster: PTT voice mirrors from the 1970's Part 1
Frequency: various
Recption location: Ancaster, Ontario, Canada
Receiver and antenna: Hallicrafters S-52 using a longwire antenna
Mode: Single Side Band
Notes:
Point to point stations were commonly found on shortwave in the 1970's outside of the normal SWBC bands. They could often be heard transmitting a repeating test message so a receiving station could tune them in prior to conducting radiotelephone traffic. These recordings were all made at Ancaster, Ontario, Canada, using either a Hallicrafters S52 or Realistic DX150A receiver hooked up to a long wire antenna.
1. Australian Overseas Radiotelephone Service, Sydney
2. Reykjavik Radio, Iceland
3. Moscow Radio Telephone Station, USSR
4. Radio Telephone Station, Warsaw, Poland
5. Overseas Station Berlin, German Democratic Republic
6. Yugoslav Telegraph and Telephone Administration, Belgrade
7. Swiss Telegraph and Telephone Administration, Bern
8. ITALCABLE, Rome, Italy
9. Netherlands PTT, Amsterdam
10. Cyprus Telecommunications Authority, Nicosia
11. Cairo Radio Telephone Terminal, Arab Republic of Egypt
12. PTT and Radio Administration, Tel Aviv, Israel
13. Saudi Arabian Post, Telegraph and Telephone Administration, Jeddah
14. Moroccan Radio Electrical Centre, Rabat
15. Companhia Portuguesa Radio Marconi, Luanda, Angola
16. RCA Global Communications, New York City
17. France Cables and Radio Company, Lome, Togo
18. Zambian Post Office, Lusaka