JPRS ID: 10255 WORLDWIDE REPORT TELECOMMUNICATIONS POLICY, RESEARCH AND DEVELOPMENT

• Document Type: CREST
• Collection: JPRS
• Document Number (FOIA) /ESDN (CREST): CIA-RDP82-00850R000500020024-8
• Release Decision: RIF
• Original Classification: U
• Document Page Count: 27
• Document Creation Date: November 1, 2016
• Sequence Number: 24
• Content Type: REPORTS

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~ JPRS L/10255
- 13 Janua r y 1982
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- Woridwide Re ort
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TELECnMMUNICATiONS POLICY,
i RESEARCM AND DEVEL~PMENT
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CFOUC~ 1 /82)
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_ JPRS L/10255
13 January 1982
WORI~DWIDE REPORT
TELECOMMUNICATIONS PC~LYCY, RESEARCH AP6D DEVELOPMENT
cFOVO ~/s2)
CONTENTS
IJSSR
Progress in Flectrical Con~munications Throughout Ukrainian SSR
(G. Z. Sinchenko; FI.En~1'ROSUYAZ', Aug 81) i
- Noise Immunity of Radio Relay Antennas snd Some Flays of
Improving It
(A. A. Timof.eyev~i, V. G. Yampol'skiy; FLFY.TROSVYAZ' ,
Aug 81) 9
Office Automation Fquipment at Specialized 'Sistemotekhnika-S0~
International Expositi_r~n
(N. A. Matyukhi~ia, A. L. Raykhtsaum; PRIBORY I
- SISTEMY iJPRAVLEr1IYA, Sep 81) 15
Su,nmary of Righth Plen20 SO
Figure 4
(i~ [i~e vertical plane, the fringe radiation level is below the required CCIR
' directivity pattern for medium performance antennas and, except for some
small sectors, corresponds to the CCIR patterns for high performance anten~
nas (figure 4). In addition, this antenna has a high UFA 0.7) and good
natural matching (SWR < 1.04). One important shortcoming of the antenna
is the cross-polarization maximum level, which is higher than that of axial
5ymmetric ~ntennas but comparable with HPA. According to available data in
C1te liter,ilure [8,9~, thl5 c~n be reduced si~nificantly by using the special
"mrihc~inq ~icvclo~ed at the Central D~sign Bureau can be divided conditionally into
two ~3ru}~s: pow~r ~upply dFVices intended for use in existing or newly introduced
f~ower :,u~~ply systems and devices which can provide the basis for developing or
introclucine~ power supply systems which have not been used at comanunications enter-
� F~rise~. Previously~ The first group includes thyristor rectifiers, ~ahich should
rc~p].acc the widely u~ed W K/expansion unknown/ rectifiers. Thyristor rectifiers
arc~ de:.ignc~d to bc u.ed in block-buffer systems as buffer and charge-buffer
23
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- rectifiers. A significant amount of the copper and steel used a.n making windings
is saved in manufacturing the new generation of thyristor type rectifiers. This
group also includes various AKAB storage battery switching devices, a new modifica-
tion of the W LS-3, radio relay link equipment power supplies, UKN /expansion
unknown/ voltage testing devices and UIT /expansion unknown% current indicators.
The second group of devices includes booster converters, converters for obtaining
additional voltage values or voltages with reversed polarity and device s for
guaranteed failsafe supply of stabilized AC voltages. The Scientific-Technical
Council, discussing the report of the Central Design Bureau, adopted th e basic
directions of the development of power supply devices and recommended the following:
~ that the Central Scientific-Research Institute of Communications consider the
possibility of creatinq a~ower supply sy~tem using booster converters and voltage
converters cons3dering the data available at the Central Design Bureau; that the
~cntral Ucsign 13ureau accelerate and finish by 1982 the development of converters
and dcvices for failsafe AC power supply, paying special attention to reducing
_ start-u~ time and reducing the internal resistance of converters; th at the possi-
~ bility ot reducing the internal resistance of thyristor rectifiers be lookecl into
and that requirements be defined for the power of the ADES standby automatic diesel
- power plant; that suggestions be prepared for the implementation of pos sible changes
and updates in the technical task for thyristor rectifiers; and that the problem
- of unifying the power supply equipment and systems used in wire and radio communi-
cations equipment be workeci out. It was recommended that the question of creating
a purE~oseful integrated five-year program for the development and creation of new
~ower supply equipment for communications be examined and, if necessary, khat a
design board be created for this program. /Text/ /Moscow ELEKTROSVYAZ' in Russian
No �3, nug 81 p 50/ 6900
COPfZIGtIT: Izdatel'stvo "Radio i svyaz , Elektrosvyaz 1981
c:so: 5500/101o END
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