A transmission apparatus for an analog-type magnetic resonance (MR) system, comprising: a radio transmission portion (106-1) having a coupler configured for coupling to an analog radio frequency (RF) cable port of an RF coil , the radio transmission portion comprising at least one first controller , an analog-to-digital (A/D) converter , and a first digital transceiver , the first controller being configured to control the A/D converter to digitize analog magnetic resonance (MR) information received from the RF coil and to control the first digital transceiver to transmit the digitized MR information; and a radio reception portion (106-2) having an analog output port and a coupler configured for coupling the output port to an analog RF cable port input of the analog-type MR system, the radio reception portion having at least one second controller , a second digital transceiver , and a digital-to- analog (D/A) converter , the second controller operative to control the second digital transceiver to receive the transmitted digitized MR information, and control the D/A converter to perform a digital-to-analog conversion upon received digitized MR information to form a corresponding analog MR signal which is output at the output port, the radio reception portion further comprising a gain controller operative to control the gain of the analog MR signal prior to the output, wherein the first digital transceiver and the second digital transceiver being configured to communicate with each other using a bi-directional digital data transfer method, wherein the gain controller is configured to determine an average of the analog MR signal and to compare the average to a threshold desired gain control threshold (GCT) value, and wherein the gain controller is configured to adjust the gain of the analog MR signal based upon results of the comparison. a radio transmission portion (106-1) having a coupler configured for coupling to an analog radio frequency (RF) cable port of an RF coil , the radio transmission portion comprising at least one first controller , an analog-to-digital (A/D) converter , and a first digital transceiver , the first controller being configured to control the A/D converter to digitize analog magnetic resonance (MR) information received from the RF coil and to control the first digital transceiver to transmit the digitized MR information; and a radio reception portion (106-2) having an analog output port and a coupler configured for coupling the output port to an analog RF cable port input of the analog-type MR system, the radio reception portion having at least one second controller , a second digital transceiver , and a digital-to- analog (D/A) converter , the second controller operative to control the second digital transceiver to receive the transmitted digitized MR information, and control the D/A converter to perform a digital-to-analog conversion upon received digitized MR information to form a corresponding analog MR signal which is output at the output port, the radio reception portion further comprising a gain controller operative to control the gain of the analog MR signal prior to the output, wherein the first digital transceiver and the second digital transceiver being configured to communicate with each other using a bi-directional digital data transfer method, wherein the gain controller is configured to determine an average of the analog MR signal and to compare the average to a threshold desired gain control threshold (GCT) value, and wherein the gain controller is configured to adjust the gain of the analog MR signal based upon results of the comparison. <EOS>