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RX Antenna switch

RX Antenna switch

This device is designed to connect an external RX antenna to a TRX that does not have an RX ANT input. It includes basic protection and PTT splitter.

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119.79 € (tax incl.)

119.79 €
99.00 € (without tax)

in stock, shipped in 2-3 days

Price history

The lowest price in the 30 last days was 119.79 €

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Description

Small transceivers are very popular these days. They are powerful and offer some of today's best features. Their disadvantage is the lack of an RX antenna input for those wishing to improve their reception on the lower bands. Most of our RX controllers include a protected RX ANT switch controlled by a PTT signal.

This small box has a circuit design that builds on the experience of previous RX controllers. It includes protections on the RX ANT input, a switch between RX and TX/RX antenna with high isolation, a PTT splitter that splits the input PTT signal to control the relay and to the extra output. The PTT input is on a classic RCA connector, but also on a mini DIN YAESU TUNER connector. This gives you a PTT output on RCA from a classic YAESU TRX. This allows you to connect other equipment such as a PA that has a PTT IN with an RCA connector. The RX ANTENNA switch is housed in a small aluminium box and has LED indicators for RX ANT, TX and ON. Selecting to RX antenna is via a small toggle switch located at the end of a 1m long cable. This toggle switch can be placed close to the TRX and the RF box can remain hidden. Switching is also possible using the relay contact of some IP controller at remote.

Using

RX ANT switch controlled by PTT
Adding RX ANT (beverage, loop etc.) to small TRX
Protections for TRX from RX ANT
PTT splitter, YAESU TUNER to RCA PTT
Ideal for IC-7300, FT-DX10 etc.

Main functions

Broadband: 0.1 MHz to 30 MHz
RX ANT High Pass 100 kHz
Max RF power 250 W continue
RX/TX controlled by PTT
RX ANT selected by external switch
RX ANT protections
Aluminium enclosure
High isolation relays isolation
Low insertion loss
Aluminium enclosure: W x H x L = 74 x 29 x 100 mm
ASSEMBLED AND TESTED VERSION

Parameters

Frequency range 0.1 to 30 MHz
RF power up to 250 W
RX ANT input high pass 100 kHz
RX ANT GDT and Neon lamp surge protection
High isolation: TRX - RX ANT over 100 dB
High isolation: TRX - TX ANT over 80 dB @ 7 MHz
Low insertion loss: 0.8 dB @ 7 MHz
RX ANT connector: SMA
TRX and and TX/RX ANT: SO-239 female
DC IN 13.8 V and 0.3 A
DC IN: green connector or YAESU TUNER
RX/TX controlled by PTT
PTT IN: RCA and mini DIN
PTT OUT: RCA
PTT IN current typ. 15 mA
PTT OUT: FET with 0.5 A polyfuse
PTT OUT: max. 60 V DC open
PTT IN and OUT: optocoupler isolators
LED: ON (Y), RX ANT (G), PTT (R)
Control switch: small toggle switch
1m long cables for DC and toggle switch

PTT logic

The PTT signal is important for controlling the relay when transmitting.
PTT IN can be either via the RCA PTT IN connector or via a Mini DIN connector connected to the YAESU TUNER. With the YAESU TRX, you not only get an RX ANT switch but also an RCA PTT output. The whole PTT IN is separated by an optocoupler. The PTT output is via a 5A FET transistor with a 0.5A reversible fuse.

DC INPUT

You can use one of two options to power the box. With the YAESU TRX when connected via Mini DIN, the switch is powered directly from the TRX. For the other case you need to connect 13.8V using the supplied two-line cable.

Available as

ASSEMBLED: ready to use

RECOMMENDATIONS TO BUY:

Included in package

RX antenna switch assembled and tested
cables
4pcs self adhesive feet pads - image

Manual

If you want to know more please check our wiki with RX Antenna switch manual.

Example with YAESU TRX

Block diagram

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