A radio set was supplied in several versions, differing on the bc. using a different type/version truck GMC 2.5 t 6x6 (mark. GMC CCKW 353, M-211, M-135), - type of transmitter (T-213/GRC-26 = modified BC-610 or T-368), - type of receivers (R-336/GRC-26 = modified BC-342N; or R-388/URR or the R-390/URR ); or type dálnopisů (TT-55/MGC + TT-56/MGC; or TT-4A/TG + TT-76; or TT-98 + TT-76)
Basic assembly, configuration and technical parameters were maintained in all versions.
1. AN/GRC-26 (basic version, produced from 1950) 2. AN/GRC-26A (manufactured from 1953) 3. AN/GRC-26B (produced from 1955) 4. AN/GRC-26C (manufactured from YYYY) 5. AN/GRC-26D (manufactured from 1961)
f) Service tools and implements, spare parts, technical documentation)
g) Antenna systems: - 3x rods (1x for transmitter + 2x for receivers) - 2x ship "T"
h) Power supply: 115 V AC, 50-60 Hz ***
2. AN/GRC-26A
a) 1x Transmitter T-213/GRC-26 (modification BC-610) + Antenna block BC-939 - Frequency range: 2,0-18 MHz, - Power: 400W (A3) - 450W (A1) - Types of operation: 6A3; 0.1A1; 1.1A1
b) 2x Receiver R-388/URR - Frequency range: 0.5-32 MHz - Types of operation: 6A3; 3A3A; 0.1A1; 1.1A1; c) 2x Teletype - 2x page teletype TT-55/MGC; later TT-4A/TG - Perforator with TT-56R transmitter; later TT-76 - Control unit C-808/GRC-26A ***
3. AN/GRC-26B
a) 1x Transmitter T-213/GRC-26 (modification BC-610) + Antenna block BC-939 - Frequency range: 2,0-18 MHz, - Power: 400W (A3) - 450W (A1) - Types of operation: 6A3; 0.1A1; 1.1A1
b) 2x Receiver R-388/URR - Frequency range: 0.5-32 MHz - Types of operation: 6A3; 3A3A; 0.1A1; 1.1A1;
c) 2x Teletype - 2x page teletype TT-4A/TG - Perforator with TT-76 transmitter - Control unit C-808/GRC-26A ***
4. AN/GRC-26C
a) 1x Transmitter T-213/GRC-26 (modification BC-610) + Antenna block BC-939 - Frequency range: 2,0-18 MHz, - Power: 400W (A3) - 450W (A1) - Types of operation: 6A3; 0.1A1; 1.1A1 b) 2x Receiver R-388/URR - Frequency range: 0.5-32 MHz - Types of operation: 6A3; 3A3A; 0.1A1; 1.1A1; c) 2x Teletype - 2x page teletype TT-4A/TG - Perforator with TT-76 transmitter - Control unit C-808/GRC-26A ***
5. AN/GRC-26D
a) 1x Transmitter T-368/URT - Frequency range: 1.5-20 MHz - Power: 400W (A3) - 450W (A1) - Types of operation: 6A3; 3A3A; 0.1A1; 1.1A1;
b) 2x Receiver R-390/URR or R-390A/URR - Frequency range: 0.5-32 MHz - Types of operation: 6A3; 3A3A; 0.1A1; 1.1A1;
c) 2x Teletype - 2x page teletype TT-98 - Perforator with TT-76 transmitter - Modem: MD-239
*** Resources: Manuals: - TM 11-264, "Radio Set AN/GRC-26", 1950-Dec-11; - TM 11-5820-202-10, "Operator's Manual Radio Sets AN/GRC-26A, B and C", 1959-Jan-07; - TM 11-5820-256-10, "Operator's Manual Radio Set AN/GRC-26D", 1969-Jun-19;
URL : https://www.valka.cz/AN-GRC-26-mobilni-KV-radiova-stanice-t124837#424725
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