Products/Accessories

For Ham Radio

Relay Saver for Keying Linear Amps

End expensive repair to your radio with this solid state electronic switch. No moving parts. No external DC voltage required (power comes from linear's internal keying circuit). Fast switching speed, great for fast QSK operation. NOTE! This model is for rigs that use a RELAY to key a linear. DONOT use this model on rigs that have solid state switching (Open collector). For solid state switching type rigs use the 706/7000 model as long as there is 8 or 13 volts available.

Four models to choose from depending on your linear's keying circuit: (Please refer to your linears op manual for keying specifications before making a selection.)

LVP for positive voltages less than 60 volts DC.
HVP for positive voltages higher than 60 up to 180 volts DC.
LVN for negative voltages less than 60 volts DC.
HVN for negative voltages higher than 60 up to 180 volts DC.

(Email bruce(at)sultantronics(dot)com on your voltage requirements if 180 volts is not high enough or if you have any questions.)

Any model just $25.00 + shipping/handling(USA only)

Click here for a brief list of Model vs linear

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Relay Saver for ICOM 706 & 7000 Series Transciever

This Relay Saver model is designed to work with the 706/7000 radio's HSEND signal on the 13 pin accessory jack. Only 3 connections are needed from this jack, 8 or 12 volts, HSEND and ground. Hook-up instructions included.

As with the plain relay saver (above) there are four models to choose from (LVP, LVN, HVP, HVN) depending on your linear's keying circuit.

Any model just $32.00 + shipping/handling(USA only)

(Addition of 13 pin accessory plug add $10.00 to order)

Click here for a brief list of Model vs linear

Click here for Relay Saver 706/7000 Order Form

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Beverage Antenna Port Saver for ICOM 756 Series Transceiver

The Beverage recieve antenna port on ICOM 756 (PRO , PRO2 & PRO3 also) has no internal disconnect circuit (when the port is activated) when going to transmit. If the Rx antenna and Tx antenna are to close together or a linear is being used excessive RF can be coupled in causing damage to the radio's front end circuitry.

The Beverage Antenna Port Saver is used to disconnect the Rx antenna and grounds the Rx port to protect the input from excessive RF coupling. A 7 pin DIN connector is provided to plug into the radio's 7 pin accessory jack picking up SEND, ground and 12 volts from the radio. A short coax cable with RCA type plugs on each end is the only other thing required to hook this unit up to the radio.

Any model just $30.00 + shipping/handling(USA only)

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Uses computer com (serial) port either RTS or DTR signal line to do T/R function. These serial signal pins are usually specified in software being used to key radio but may be fixed in some versions, consult the manual of the software you are using. (When com port pin goes positive radio goes into TX)

Features: Totally isolated circuit, no ground loops. All solid state, no moving parts hence fast T/R speed, does not add any significant T/R delay. Seperate power supply not needed, com port powered.

Two models to choose from: For negative open circuit voltage on PTT/CW Keying line use TXLN. For positive open circuit voltage on PTT/CW Keying line use TXLP. Both models MAX 30 Volts positive or negative. If you need a higher rated voltage please inquire via email to bruce(at)sultantronics(dot)com.

DB 9 com (serial) connector sex must be specified , either male or female plus what signal pin is going to be used as stated above.

Any model just $40.00 + shipping/handling(USA only)

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