Introducing the new Asymod C1 Console. The Asymod C1 Asymmetrical Hi-Fi AM & eSSB Modulator and Station Monitor is a standalone unit that extends the functionality of any HF transceiver. On the TX side, the Asymod has all the standard Asymod controls, such as gain, modulation, carrier and asymmetry. Up to 10 kHz of audio bandwidth which can be rolled off narrower within the audio process. It also has a station ID that when activated it comes on every time the radio is keyed.

On the RX side, the Demod and station monitor offers the fader / mix control which allow for mixing the RX and TX audio. I much acts as a fader, where at the center position, both, RX and TX audio are at equal level. The TX Monitor switch allows selection of listening to the line in TX audio or the TX Demod audio. The AM demodulator samples the TX RF with no obstructions, thus leaving the AF (audio frequencies) as they are transmitted. This AF is an exact sample of the TX audio. The demodulator tone control allows to set the filter of the Demod TX RF audio that is heard out of the headphone jack only, it does not affect the TX audio being transmitted.

The monitor volume (MONITOR) sets the audio level at the headphone jack. The Asymod C1 includes a MOX switch (manual operated transmission) which allow to key the transceiver without a PTT. It also has the VFO Whine effect, simply turn on the WHINE switch and while on AM, the transceiver will begin transmission off frequency and slowly drift into the fundamental in a few seconds, thus creating the heterodyne effect when clashing with other on-air signals. The Speaker disable switch allows for the radio’s internal or external speakers to be disabled while monitoring yourself using the headphones.

The Station ID can be up to 10 seconds at 3.5 kHz bandwidth and it is reprogrammable, once the station ID is enabled, every time the transceiver is keyed, the ID will play. The On-Air playback recorder is a 4 kHz bandwidth, 10 second recorder. It can be set on board to up to 30 seconds by changing the bandwidth.

The RF Amplifier keyer can handle amplifiers with relays coil ratings up to 5A, 240V AC/DC and is available at the rear panel RCA jack.

At the rear panel, the station ID message can be transferred into the Asymod C1 by feeding the audio into the audio in 1/8” jack while pressing the ID REC button on the front panel to program the station ID.

The Line-In connector accepts line level audio up to 2V PEP. The PTT connector allows for connection of a PTT mouse, foot pedal or switch.

The Asymod C1 easily connects to the transceiver of choice via a HDMI connector which provides connectivity for all of the control and line signals.

The RF sampler is a great tool to have, it provides an RF sample of the TX RF for connection to an oscilloscope to monitor the TX signal, AM envelope, etc. No need to have RF couplers in the RF line with extra wires and connections. The Asymod C1 is built tough in a high-quality aluminum enclosure to provide years of reliable operation.

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