The 3061 Power Amplifier is an HF power amplifier delivering 500 W PEP output across 1.6 to 30 MHz for continuous voice and data operation with Codan Envoy and Sentry-H transceivers.
500 W PEP +/- 1 dB and 300 W average across the full 1.6 to 30 MHz HF range into 50 ohm impedance.
Rated for 100% continuous operation in all modes for voice or data, 100% normal speech over full temperature range.
Switched mode supplies vary RF transistor voltage with load and modulation to maximise efficiency and cut heat.
Spurious and harmonic emissions better than 60 dB below PEP; intermodulation distortion better than 32 dB below PEP.
Controls an external antenna tuner or coupler; the transceiver auto-tunes on low power before high power engages.
Safe under all loads; by-pass mode delivers 125 W PEP from the transceiver under excess VSWR, heat or fault.
19 inch 5RU rack mount with extensive heatsinks and thermostatically controlled dual speed front panel exhaust.
| Product type | 3061 500W Power Amplifier (HF power amplifier) |
|---|---|
| Compatible transceivers | Envoy X1, Envoy X2, Sentry-H 6120-BM |
| Application | Voice and data operation with Codan HF transceivers |
| Front panel indicators | Internal fault, VSWR, over temperature; LED bar graph for PEP output power or supply current |
| Stand-by | Automatic stand-by when idle or when attached transceiver is powered off |
| Protection | Safe under all load conditions; by-pass to 125 W PEP from transceiver under excess VSWR, heatsink temperature or internal fault |
| Certifications and type approvals | Australian C-tick AS/NZS 4770:2000; electrical safety AS/NZS 60950 / EN 60950; CE compliance |
| RF power output | 500 W PEP +/- 1 dB, 300 W average |
|---|---|
| Frequency range | 1.6 to 30 MHz |
| Input / output impedance | 50 ohm |
| Duty cycle | 100% normal speech over full temperature range; 100% all modes up to maximum ambient 45 degrees C |
| VSWR tolerance | Operates with loads of VSWR up to 3:1 with reduced output power |
| Spurious and harmonic emissions | Better than 60 dB below PEP |
| Intermodulation distortion | Better than 32 dB below PEP |
| Antenna tuner | Interface to control an external antenna tuner or coupler |
| Power supply | 100 to 240 V AC +/-10%, 50 / 60 Hz single phase |
|---|---|
| Power consumption | 800 VA (two-tone), 900 VA maximum |
| Operating temperature | -10 degrees C to +60 degrees C |
| Cooling | Fan forced front panel exhaust, thermostatically controlled dual speed |
| Size (amplifier) | 5RU 19 inch rack: 22.2 H x 48.3 W x 41.0 D cm |
| Size (power supply) | 5RU 19 inch rack: 22.2 H x 48.3 W x 41.0 D cm |
| Weight (amplifier) | 15.4 kg |
| Weight (power supply) | 6.7 kg |
3061 500W Power Amplifier delivers 500 W PEP +/- 1 dB across 1.6 to 30 MHz with spurious and harmonic emissions better than 60 dB below PEP, giving Codan Envoy and Sentry-H transceivers the clean high power they need for continuous voice and data over long range HF links. Rated for 100% continuous duty, fully protected under all loads with by-pass backup, and packaged for 19 inch 5RU rack mounting, this HF power amplifier keeps the station operational and on-air. Backed by DTC engineering and worldwide service, the 3061 500W Power Amplifier powers the net wherever HF communications are deployed.