PRC-1187A VHF Handheld Hopping-Frequency Transceiver is a new generation of VHF anti-
jamm-ing handheld communication equipment. It is mainly used for mobile communication by
commanders and soldiers in battalion, company and platoon. It has the functions of fixed/hopping
frequency clear/encrypted voice and fixed/hopping frequency data transmission. Additionally, it
also has the functions of selective call, self-test and short message edition. It has the features of
small size and light weight. Built-in microphone and speaker contribute to direct handheld talking.
Clear display and flexible operation are attributed to LCD and key operation. Equipped with 10W
power amplifier, it can be used as vehicle-borne transceiver.
主要指标 Main Specifications
1整机性能
1 Specifications of the transceiver
•频率范围：30~87.975MHz
Frequency range： 30~87.975MHz
•信道间隔：25KHz
•Channel space : 25KHz
•工作方式：定频明/密话、
Operation mode:
跳频明/密话、
Fixed frequency clear/encrypted voice;
Hopping frequency clear/encrypted voice;
定频及跳频数传。
Fixed frequency data transmission;
•存储信道数：10个
Hopping frequency data transmission.
•天线种类：1.3米宽带鞭状天线、
Storage channel number: 10
0.45米宽带鞭状天线
Antennas: 1.3m broadband whip antenna
•供电电压：锂电池7.2V
0.45m broadband whip antenna
•工作温度：-25℃~+55℃
Power voltage: 7.2V Li-ion battery
•外形尺寸：
Operation temperature:-25℃~+55℃
Dimensions:
65mm(W)×180mm(H)×50mm(D)
65mm(W)×180mm(H)×50mm(D)
•重量：
0.6kg（含电池）
Weight:0.6kg(including battery)
2 发信机性能
2 Specifications of the transmitter
•载波功率：大功率2W±1.5dB
Carrier power: 2W±1.5 dB (high power)
小功率0.5W±1.5dB
0.5W±1.5 dB (low power)
Frequency error:士250Hz
频率误差：±250Hz
Harmonic suppression:=40dB
•谐波抑制：≥40dB
•Pilot frequency: 150Hz±2Hz
•导频频率：150Hz±2Hz
Modulated frequency deviation:
analog voice:5.6kHz±lkHz
• 调制频偏：模拟话 5.6KHz±1KHz
Digital voice:7KHz±1KHz
数字话 7KHz±1KHz
Pilot frequency:3KHz±1KHz
导 频 3KHz±1KHz
3 Specifications of the receiver
3接收机性能
•Sensitivity:0.35μV(S+N/N=12dB)
•灵敏度：
0.35μV(S+N/N=12dB)
• Audio output: 3.5mW (adjustable)
•音频输出：3.5mW（可调整）
• Audio distortion：≤6%
•音频失真：<6%
• Audio response: variation relative to 1000Hz is less
音频响应：在300~3000Hz内，相对于1000Hz
than ±6dB in the frequency range of 300~3000Hz.
的变化在±6以内，
• IF suppression：≥70 dB
•Image suppression:≥60dB
•中频抑制：270 dB
4 Frequency Hopping, Encryption and Data
•像频抑制：≥60dB
Transmission Performances
4跳频、保密、数传性能指标
Frequency hopping rate:500hops/s
跳频速率：500 hops/s
Frequency hopping bandwidth:hopping in full band or
跳频带宽：可全频段跳, 也可分频段跳
separate band
语音编码方式：CVSD/MELP
Voice coding mode:CVSD/MELP
话音数据率：CVSD 16Kbits/s; MELP 2400bits/s
•Voice coding rate:CVSD 16Kbits/s;MELP 2400bits/s
速率：19200/9600/4800/2400/1200/600bps
Rate:19200/9600/4800/2400/1200/600bps
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