Editing AN/PRC-77 Portable Transceiver (section)

== Technical details ==
The AN/PRC 77 consists of the [[RT-841]] transceiver and minor components. It can provide [[secure voice]] (X-mode) transmission with the TSEC/KY-57 [[VINSON]] voice [[encryption]] device, but is not compatible with the SINCGARS [[Frequency-hopping spread spectrum|frequency hopping mode]].<ref name="olive-drab.com"/> During the [[Vietnam War]], the PRC-77 used the earlier TSEC/KY-38 [[NESTOR (encryption)|NESTOR]] voice encryption system.

'''Major components:'''

*Transmitter/Receiver unit
*Battery

'''Minor components - CES (Complete Equipment Schedule):'''

*3&nbsp;ft antenna - 'bush/battle whip'
*10&nbsp;ft antenna
*3&nbsp;ft antenna base - 'gooseneck'
*10&nbsp;ft antenna base
*Handset
*Harness

{| cellpadding="2" cellspacing="0" border="1"
|- 
! colspan="2" style="background-color: #c0c0c0" |Technical characteristics<ref name="spec">[http://www.associated-ind.com/pdf/ANPRC77.pdf], Manufacturer Datasheet.</ref>
|-
! style="background-color: #dfdfdf;" | Channels: 
| 920 channels across two bands using 50&nbsp;kHz steps
|-
! style="background-color: #dfdfdf;" | Frequency Ranges:
| 30.00 to 52.95&nbsp;MHz (Low Channel);<br />53.00 to 75.95&nbsp;MHz (High Channel)
|-
! style="background-color: #dfdfdf;" | Estimated Range:
| 8&nbsp;km (5&nbsp;mi) Dependent on conditions
|-
! style="background-color: #dfdfdf;" | Power Output:
| 1.5 to 2.0 watts
|-
! style="background-color: #dfdfdf;" | Power Source: 
| Current (2015) military batteries:<br />BA-5598/U LiSO<sub>2</sub> nonrechargeable<br />BB-386/U NiMH and BB-2598/U Li-ion rechargeable<br /><br />Obsolete (unavailable) nonrechargeable military batteries:<br />BA-386/PRC-25 zinc-carbon, BA-398/PRC-25 zinc-carbon cold weather vest (use w/cable to radio battery connector), [[BA-4386]]/PRC-25 magnesium<br /><br />Discontinued but available military or equivalent batteries:<br />BA-3386/U alkaline nonrechargeable<br />BB-586/U NiCad and BB-LA6 SLA rechargeable
|-
! style="background-color: #dfdfdf;" | Antenna:
| AT-271A/PRC {{convert|10|ft|m|abbr=on}} multi-section whip "Static" [[Whip-a-way]], or<br />AT-892/PRL-24 3&nbsp;ft semi-rigid steel tape "Bush-whip",
|-
! style="background-color: #dfdfdf;" | Type of Service:
| 30K0F3E emission (FM)<br />Manpack field radio<br />[[land mobile service]]

|-
! style="background-color: #dfdfdf;" | Weight:
| 13.75&nbsp;lb (6.2&nbsp;kg)
|-
! style="background-color: #dfdfdf;" | Security
| Could be used with TSEC/KY-38 [[NESTOR (encryption)|NESTOR]] and, later, the KY-57 [[VINSON]] [[secure voice]] systems. 
|-
! style="background-color: #dfdfdf;" | Note:
| A modified version of the AN/PRC-77 is available and is designated<br />AN/PRC-1177.  This version has been enhanced to allow a smaller <br />channel step of 25&nbsp;kHz and to reduce voice bandwidth to 6&nbsp;kHz. These<br />features combine to double the number of available channels to 1840. 
|-
|}