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for the PRC-25's tube filament. This remained unchanged so the batteries could operate either radio it was placed in, but the PRC-77 did not use the 3 V tap at all. With the more efficient all-transistorized circuitry, and without the DC-DC step-up voltage converter for the tube, the common battery lasted longer in the PRC-77 under the same conditions. "OF THE TWENTY-FIVE (25) ELECTRONIC MODULES ORIGINALLY USED IN BOTH THE TRANSMITTER AND RECEIVER PORTIONS OF THE AN/PRC-25, ONLY EIGHT (8) OF THE MODULES USED IN THE AN/PRC-77 ARE INTERCHANGEABLE WITH THE AN/PRC-25.'"
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601:(Multi Role Radio) and LFR (Lett Flerbruks Radio) (Norwegian for Light Multi Role Radio), and other modern radios. However the Norwegian Army did not throw these radio sets away. Instead many of them were handed over to the Home Guard which still uses it as their backup radio as there is a limited supply of MRR sets for the force totalling 40 000 soldiers.
39:
356:
102:. It differs from its predecessor mainly in that the PRC-77's final power amplifier stage is made with a transistor, eliminating the only vacuum tube in the PRC-25, as well as the DC-DC voltage converter used to create the high plate voltage for the tube from the 15 V battery. In addition, the PRC-25 could not support
121:
There were no changes to the external controls or looks, so the two radios looked and the operating controls were the same. The equipment tag glued to the edge of the front panel was the main (external) way to tell the difference. The original batteries had a 3 V tap (series diode-reduced to 2.4 V)
117:
family. Problems were encountered in
Vietnam with the combination as described in the NESTOR article. The transmitter's spurious emissions were cleaned up to create less interference to nearby receivers. The receiver's performance was also hardened in the PRC-77 to enable it to better reject
437:
still uses the AN/PRC-77, though in a limited capacity such as training cadets in radio communications. For border patrol the
Austrian Army now uses a new device called "TFF-41" (Pentacom RT-405), which is capable of frequency-hopping and digital encryption. The Austrian Army also uses the
456:
use the AN/PRC-77 as a section level communication equipment. In
Chittagong Hill Tracts area it is still used for operations. Some modified/improvised local antenna concepts often increase the communication range up to 15–20 km. Now being phased out by far superior Q-MAC's
438:
AN/PRC-1177 for example the
Austrian AN/PRC-77 have a special switch for a 25 kHz mode, which reduces the bandwidth of the selected channel by 25 kHz and therefore doubles the number of available channels.
118:
interference suffered from nearby transmitters, a common operating set up that reduced the effectiveness of the PRC-25. The receiver audio bandwidth was also increased to operate with the encryption equipment.
479:
do Brasil S/A, São Paulo 1970 the radio is used today but is now being replaced but still the PRC-77 remains stored in military units also used for training of technicians in military communications sergeants
552:
used this radio extensively from the early 1970s to the late 1990s, when it was gradually replaced by modern digital devices. However, it can still be found in some units, mostly in stationary temporary
530:
uses this radio as a "battalion radio", using it as a common training device. The radio is designated LV 217 'Ventti-seiska' ('ventti' is
Finnish slang for '21', from the Finnish variant of
655:
made extensive use of the AN/PRC-77 for several decades until they were phased out of service with the introduction of newer manpack radios such as the Harris Falcon II during the 2000s.
129:
radios, but it is still capable of inter-operating with most VHF FM radios used by U.S. and allied ground forces. It was commonly nicknamed the "prick-77" by U.S. military forces.
575:'fitted for radio' (FFR) variants, from the late 1960s until the 1990s. It came into New Zealand service with a lot of other US equipment during New Zealand's contribution to the
1056:
1071:
1061:
54:
794:
850:
669:: The Spanish Army, Spanish Navy (Armada Española), Spanish Marines and Spanish Air Force formerly used the AN/PRC-77. It was replaced by the French PR4G since 2002
386:
1066:
619:
has used the set for the past 25+ years. Purchased from different sources including the US, Brazil and Spain, it is scheduled to be replaced in the next 5 years.
771:
723:
nicknamed the radio as "77", and had used it for over 40 years when AN/PRC-77, along with AN/VRC-12, were replaced by indigenous radio systems in 2010s.
83:
947:
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the radio system goes under the name Radio 145 and Radio 146 (Ra145/146), predominately the
Homeguard (National Guard) is issued the Ra145/146.
920:
735:
762:
753:
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834:
408:
154:
576:
390:
863:
Military
Communications A Test for Technology CMH_Pub_91-12-B, pg 201 and Army procurement decision B-161031, JUN. 1, 1967
984:
512:: Salvadoran military and security forces used both American and Israeli-manufactured versions during the civil war.
379:
568:
264:
BA-386/PRC-25 zinc-carbon, BA-398/PRC-25 zinc-carbon cold weather vest (use w/cable to radio battery connector),
720:
106:
devices, but PRC-77 transmitter audio bandwidth was widened to give it the ability to use the TSEC/KY-38
549:
434:
955:
780:
475:
It was nicknamed EB-11 RY-20/ERC-110 manufactured by
Associated Industries U.S.A and manufactured by
69:
593:: The AN/PRC-77 has been replaced as a main source of radio communication for regular forces of the
571:
used the '77 set' as its VHF combat arms communications equipment, both manpack and vehicle-mounted
320:
301:
162:
107:
43:
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579:, replacing the New Zealand-built ZC-1 and British equipment dating back to the Second World War.
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manufactured by
Associated Industries and used to provide short-range, two-way
702:
449:
342:
channel step of 25 kHz and to reduce voice bandwidth to 6 kHz. These
284:
150:
531:
86:(JETDS), AN/PRC translates to "Army/Navy, Portable, Radio, Communication."
612:
126:
17:
882:
38:
523:
430:
393: in this section. Unsourced material may be challenged and removed.
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344:
features combine to double the number of available channels to 1840.
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146:
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War Slang: American
Fighting Words & Phrases Since the Civil War
42:
Soldier using a PRC-77 (top) with the KY-38 "Manpack," part of the
666:
491:
355:
354:
338:
A modified version of the AN/PRC-77 is available and is designated
53:
37:
29:
813:
630:
340:
AN/PRC-1177. This version has been enhanced to allow a smaller
283:
AT-271A/PRC 10 ft (3.0 m) multi-section whip "Static"
58:
U.S. Marine carrying a PRC-77 during a training exercise in 1989
362:
66:
829:. Hicksville, NY: CW Communications, Inc. pp. 171–176.
271:
Discontinued but available military or equivalent batteries:
948:"El Paraiso and the War in El Salvador: Part I (1981–1983)"
289:
AT-892/PRL-24 3 ft semi-rigid steel tape "Bush-whip",
205:
262:
Obsolete (unavailable) nonrechargeable military batteries:
969:
Marks, Tom (January 1990). "Professionals In Paradise".
498:
still using the PRC - 77. (In process of modernization).
217:
920 channels across two bands using 50 kHz steps
182:
Minor components - CES (Complete Equipment Schedule):
897:
http://www.olive-drab.com/od_electronics_anprc25.php
795:List of military electronics of the United States
141:transceiver and minor components. It can provide
125:Today the AN/PRC-77 has largely been replaced by
94:The AN/PRC-77 entered service in 1968 during the
46:voice encryption system that was used during the
892:
890:
153:device, but is not compatible with the SINCGARS
827:Mil Spec radio gear - Korean War to present day
259:BB-386/U NiMH and BB-2598/U Li-ion rechargeable
235:8 km (5 mi) Dependent on conditions
8:
597:by indigenously developed radio sets called
113:system used in Vietnam, and the later KY-57
1057:Military radio systems of the United States
849:: CS1 maint: numeric names: authors list (
275:BB-586/U NiCad and BB-LA6 SLA rechargeable
1072:Military equipment introduced in the 1960s
145:(X-mode) transmission with the TSEC/KY-57
1062:Military electronics of the United States
1037:AN/PRC-25 and AN/PRC-77 at Olive-drab.com
409:Learn how and when to remove this message
161:, the PRC-77 used the earlier TSEC/KY-38
84:Joint Electronics Type Designation System
899:AN/PRC-25 and AN/PRC-77, Olive-drab.com
806:
731:
227:53.00 to 75.95 MHz (High Channel)
842:
225:30.00 to 52.95 MHz (Low Channel);
187:3 ft antenna - 'bush/battle whip'
1067:Military equipment of the Vietnam War
915:. Dover Publications. pp. 425–.
883:https://www.gao.gov/products/b-161031
7:
391:adding citations to reliable sources
193:3 ft antenna base - 'gooseneck'
27:Military tactical radio transceiver
273:BA-3386/U alkaline nonrechargeable
251:Current (2015) military batteries:
25:
779:
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494:: The Telecomm Regiments in the
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367:
378:needs additional citations for
319:Could be used with TSEC/KY-38
137:The AN/PRC 77 consists of the
1:
98:as an upgrade to the earlier
1042:PRC-77 Back Pack Squad Radio
825:Mark Francis, KI0PF (2005).
311:13.75 lb (6.2 kg)
82:voice communication. In the
633::Used alongside the french
34:AN/PRC 77 radio and handset
1088:
471:: In Brazil it is used by
209:Technical characteristics
937:, Manufacturer Datasheet.
815:, Manufacturer's website.
705:used the radio as SE-227.
569:New Zealand Defence Force
359:Control Panel of a PRC-77
208:
174:Transmitter/Receiver unit
165:voice encryption system.
881:B-161031, JUN. 1, 1967
196:10 ft antenna base
65:is a manpack, portable
872:B-161031, JUN. 1, 1967
360:
323:and, later, the KY-57
155:frequency hopping mode
59:
51:
35:
973:. Soldier of Fortune.
909:Paul Dickson (2011).
550:Israel Defense Forces
358:
297:30K0F3E emission (FM)
57:
41:
33:
387:improve this article
1010:"超耐用通訊77終於要退休了 ..."
302:land mobile service
299:Manpack field radio
63:AN/PRC 77 Radio Set
971:Soldier of Fortune
361:
222:Frequency Ranges:
190:10 ft antenna
60:
52:
36:
922:978-0-486-47750-3
419:
418:
411:
348:
347:
294:Type of Service:
268:/PRC-25 magnesium
243:1.5 to 2.0 watts
232:Estimated Range:
169:Major components:
133:Technical details
16:(Redirected from
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1031:External links
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985:"立委：國產3武器明年量產"
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958:on 2019-04-11.
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157:. During the
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1017:. Retrieved
1015:. 2010-09-18
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993:. Retrieved
991:. 2010-09-17
988:
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956:the original
951:
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685:Swedish Army
528:Finnish army
496:Chilean Army
405:
396:
385:Please help
380:verification
377:
328:secure voice
181:
180:
168:
167:
143:secure voice
136:
124:
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111:secure voice
99:
93:
62:
61:
952:www.soc.mil
649:Philippines
577:Vietnam War
565:New Zealand
510:El Salvador
399:August 2023
159:Vietnam War
96:Vietnam War
76:transceiver
48:Vietnam War
1051:Categories
1019:2018-11-17
995:2018-11-17
801:References
703:Swiss Army
573:Land Rover
450:Bangladesh
285:Whip-a-way
214:Channels:
151:encryption
989:國際軍武網友聯誼會
845:cite book
683:: In the
532:blackjack
330:systems.
316:Security
280:Antenna:
100:AN/PRC-25
18:AN/PRC-77
1013:Mobile01
789:See also
613:Pakistan
308:Weight:
127:SINCGARS
635:TRC 372
524:Finland
457:VHF-90M
431:Austria
266:BA-4386
202:Harness
199:Handset
177:Battery
90:History
919:
833:
719:: The
717:Taiwan
714:
701:: The
681:Sweden
678:
664:
651:: The
646:
628:
615:: The
610:
591:Norway
588:
567:: The
562:
553:posts.
548:: The
546:Israel
543:
526:: The
521:
507:
489:
469:Brazil
466:
452:: The
447:
433:: The
428:
335:Note:
325:VINSON
321:NESTOR
163:NESTOR
149:voice
147:VINSON
139:RT-841
115:VINSON
108:NESTOR
44:NESTOR
699:Swiss
667:Spain
492:Chile
351:Users
917:ISBN
851:link
831:ISBN
631:Peru
287:, or
599:MRR
389:by
67:VHF
1053::
987:.
950:.
889:^
847:}}
843:{{
637:.
534:).
70:FM
1022:.
998:.
925:.
853:)
839:.
412:)
406:(
401:)
397:(
383:.
255:2
50:.
20:)
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