The transmit mode is CW only. This is powered from 12 VDC. This set comes with 12 crystals 6 receive and 6 transmit.
Also included is the very hard to find BB-447A battery box and headset. I do not have the battery for this.
This is a Vietnam war vintage radio. I tested this on receive and it is very sensitive and receives very well, I did not test this on transmit. The item "RT-654A TRC-77 Military Field Radio HF Receiver CW Transmitter 3-8 MC" is in sale since Saturday, September 19, 2020.
This item is in the category "Collectibles\Militaria\Surplus\Radios". The seller is "navships" and is located in Dubuque, Iowa.This item can be shipped worldwide.