1. JAMMING STATIONS IN PRAGUE 2. RECEPTION OF FOREIGN BROADCASTS

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP82-00046R000300250010-0
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 4
• Document Creation Date: December 27, 2016
• Document Release Date: June 5, 2013
• Sequence Number: 10
• Publication Date: March 15, 1954
• Content Type: REPORT

Declassified in Part - Sanitized Copy Approved for Release a 50-Yr 2013/06/19: CIA-RDP82-00046R000300250010-0
( 4"
COUNTRY
Czechoslovakia
--gErftftrir--.
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SUMO' 1, Jamming Stations in Prague
2. Reception of Foreign Broadcasts
DATE OF INFORMATION
PLACE ACQUIRED
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THIS IS UNEVALUATED INFORMATION
REPORT Ir.
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DATE DISTR. 3.0t, March 1954
NO. OF PAGES 4
REFERENCES:
SOURCE
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1. There was an old military broadcasting station located in a villa
on Mimes Street in Prague-Bubeneo ffnnex A, Point . There were
two 'broadcast t9wers of simple iron construction about 23 In. high
on the grounds surround/ng the villa. A few soldiers were always
stationed there. I do not know when this broadcast station was
built but it was in operation in 1945. In the early summer of 1952
the army occupied a neighboring villa ffnnex A, Point 37 as well as
the ground surrounding this villa between Manes Street and the Prague-
Kladno railroad station. Four or five new iron broadcast towers
about 20 m. high were erected on the site. I heard from the people
living in the area that this new broadcasting station was a jamming
? station. In fact, as soon as the new broadcast towers were erected,? '
listening to RFE as well as to VOA broadcasts was rendered impossi-
ble by heavy interference. This same interference was experienced
by the people living on Pelle Street 2Tnnex A, Point 27) on Na
Magistrale Street nnex A, Point 1.97, as well as on Ovenecka Street
.5nnex A, Point ff.or the exact location of these two stations,
see enlargement Annex A, Points 1 and 2.g
2. In the early summer of 1952, a brick building, about 10 x 10 m.,
as well as about three broadcasting towers, each about 20 m. high,
were erected on the western side of the Strahov Stadium. ffee Annex
B, Point ij Pe#Ple told me that this was a jamming station, be-
cause as so o as this construction was built, . listening to RPE
and VOA broadcasts was rendered impossible by heavy interference.
This interference was experienced by the people living on Belohorska
Street, near the Brevnov Monastery streetcar station. niee Annex
B, Point 22
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Declassified in Part - Sanitized Copy Approved for Release @ 50-Yr 2013/06/19: CIA-RDP82-00046R000300250010-0
Declassified in Part - Sanitized Copy Approved for Release @ 50-Yr 2013/06/19: CIA-RDP82-00046R000300250010-0
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A jamming station was erected in the-Prague-lirsovice brewery in
June 1953. The people noticed an odd construction in one of the
brewery 'buildings and shortly thereafter, reception of RFE and VOA
broadcasts was rendered impossible in the surrounding areas'. This
interference was experienced by the people living on Krale Jiriho
Avenue and 'those living in the vicinity of Pankrac Prison.
In general, RFE broadcasts suffered the greatest iptArfArAn9e and
VOA followed. -BBC-London was jammed very little. I Iknow 50:00
about Paris broadcasts. The AFN-Nuernberg broadcasts were not
jammed at all. Starting at 0630 hours, all the wave lengths used
by RPE Were jammed very intensely in the whole Prague area. Very
often, listening was rendered impossible. However, listening after
2300 hours was better as the Jamming was in the background. Jamming
was even greater on Saturday and Sunday, Always one of the wave
lengths of RFS was not so heavily jammed as were the other wave lengths;
rthink this was becaUse it enabled the Czechoslovak police to listen
too. However, this lighter jamming switched from one frequency to
another at short 15 minute intervals.
Annexes:
A. Overlay on a German City Plan of Prague (no further identification
available)
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Annex Overlay on a German City Plan of Prague (no identification
'Available), Scale: 1:13,000
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Enlargement of Above Area
?
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Manes St.
1
=1 =1 MI
Beloredi Ave. (Obranou miru Ave.)
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Declassified in Part - Sanitized Copy Approved for Release @ 50-Yr 2013/06/19: CIA-RDP82-00046R000300250010-0
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Annex B: Overlay on a German City Plan of Prague (no identification
available), Scale 1:13,000
Sokolsky
Stadium
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Declassified in Part - Sanitized Copy Approved for Release @ 50-Yr 2013/06/19: CIA-RDP82-00046R000300250010-0