DSW-150 is a automatic T/R switch senses transmitted RF (as SwitchBox) and switches your antenna from receive to transmit using a relay. It shorts your receiver antenna input to ground to protect your receiver. Instead of using RF sense to switch the antenna, a control line input lets your key/keyer or PTT line switch the…
Specification: Frequency Range 421.5750 ~ 421.9125MHz transmission Receive 440.0250 ~ 440.3625MHz 1mW * / 10mW transmit power (+20% ~ -50%) less receiver sensitivity 7dB? (12dB SINAD) AC adapter with power supply DC 8.0V * Current consumption less than 200mA when transmitting 150mA when receiving less Number of channels 27ch Operating temperature range -10 ~ +50…
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Barrett Communications designs, manufactures and markets HF and VHF radio equipment for specialised, autonomous, long distance radio communications. For over 25 years Barrett Communications has provided HF communications solutions for global government, business, humanitarian and AID organisations. Link
Specification TX : 3.5-4.0MHz, 7.0-7.3MHz, 10.1-10.15MHz, 14.0-14.35MHZ RX: 3.2-16MHz Output power : 12V supply 4-5W, 13.8V 6-7W External Supply : Voltage:9-14VDC Optional : batterypack:11.1V Current Draw : RX about 60ma TX 800ma (12VDC) Side tone : 700Hz Memory: 1-30 Automatic key : Built in with adjustable speed Selectivity : 4 crystal filter, 400Hz-3KHz Continued adjustable…