Name: SDR Transceiver and Receiver Switch Antenna Sharer TR Switch Box with Gas Discharge Protection
Brand: SDR
SKU: bg-1734290
Price: 5026 INR
Availability: InStock
Rating: 5.0 (85 reviews)

Question 1

The details sections says 100W output, but that's not possible with a power supply of 13.8V/200mA. Can anyone shed light on this?

Accepted Answer

It is 100W THROUGHPUT. 100W from transceiver out into the adapter and same 100W out to the antenna. Power supply (12V 200mA) only for internal circuitry (relay, switch, whatever is inside) 100W means you can not use with linear amplifier (500W-1kW)

Question 2

The Specification is DC-160mhz. My unit will NOT perform above 50mhz -VERY high SWR.?

Accepted Answer

sameas mine

Question 3

its a little bit fast (relays ar clicking on and off) on usb/lsb, have some one solved this? my transceiver is about 20watts.

Accepted Answer

trychanging internal jumper, if radio has a ppt socket 2x3.5mm plug it in both terminals the it switches as soon as you key

Question 4

Received my switch. When hooked up as required, I get a strong antenna signal at my SDR, but no antenna signal at the radio? I have tried two different coax patch cables from the switch to the radio with same results. Not just a bad signal, NO signal at the radio.

Accepted Answer

internaljumper needs changed, see techminds how to

Question 5

Hello, i connected the switch today but get interference of broadcast/sw radio.how can that be resolved?

Accepted Answer

Use a filter for interference , as the unit is only for displaying your tx through an SDR program, including.. Seeing other hams tx signals on the band, by use of your SDR  programmes waterfall.  And what ever
                                                                                                                    you wish to qrp or not,  the HF band your wanting to chase, including , monitoring your own  TX,  for other purposes.
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Question 6

The device is working fine. I purchased it a few months back. But, I would like to learn more about the function and purpose of the three additional 3.5 mm jacks located on the opposite side of the device from where the two PL259 and SMA connections are located. The jacks are Labeled: J1 TRX,  J2 AUDIO OUT, J3 SDR.  Is there any available documentation which has the descriptions of these jacks? Best Regards, Thank You

Accepted Answer

Hi the j1 trx is for a mic keyed switch.  J2 is for an external speaker. SDR is to connect a software defined radio (basically your computer).

Question 7

How does it work with ic-7100 icom

Accepted Answer

it has a rf sensing relay, but if not sure use the ptt jack off the radio

Question 8

Hi, is possible connect adaptor 12 volt ?

Accepted Answer

12V should be fine. It's close enough to 13.8V to still operate. It's probably a 12V circuit and just shown as 13.8V because that's the most common voltage used to power transceivers.

Question 9

I have a Yaesu 991A and have the plug for the TUN/LIN jack. How do I wire it to the plug, what pins do I attach the wire to? Thanks.

Accepted Answer

You can look to tune socket pinout and make proper cable, but I'm using rf sence feature on my sdr switch and it works perfectly.

Question 10

Is there some user/instruction manual available for this switching box please.... I am getting loads of feedback between my sdr and the radio when I try transmitting and also the relay is clicking like mad between tx to sdr when trying to transmit on ssb

Accepted Answer

yes, you will find it from the description.

SDR Transceiver and Receiver Switch Antenna Sharer TR Switch Box with Gas Discharge Protection

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