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3 port SDR Switch 0-70MHz 100W
SKU Part Number:
Box1-SDR3-SWITCH-0-70MHZ
0-70MHz 100W SDR Switch
This is an alternative to the MFJ-1708, The SDR Switch is designed to allow you to use the best possible SDR receiver for...
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£177.00
Availability: In stock

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Call 0345 2300 5990-70MHz 100W SDR Switch
This is an alternative to the MFJ-1708, The SDR Switch is designed to allow you to use the best possible SDR receiver for your RX whilst still using your current 100W HF, 50 MHz or even 70 MHz transceiver for your TX. The SDR Switch integrates your SDR receiver as your station receiver rather than just wasting it as a Panadapter.
- Your SDR will connect to the RX port.
- Your transciever will connect to the TX port.
- Your antenna is then connected to the antenna port.
- The PTT on your radio switches between your RX and your TX antenna when you transmit.
SDRSwitch.com products are designed to have the lowest Insertion Loss and VSWR of any SDR Switch on the market. These are the most important measurements when choosing which SDR Switch is most suitable for your application. They are the only SDR Switches designed by Weak Signal VHF/EME operators for use on HF, 50MHz and 70MHz without causing serious degradation to an already weak signal.
When using this switch, your SDR will be your sole RX and does not share the RX of your rig. For the dual RX option, RXing on both your SDR and your transciever Rig (using an optional power divider/splitter) you will need the 4 BNC RXin RXout.
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Why only use your SDR to RX?
When it comes to working DX every dB counts. Insertion Loss is the most important number you should consider when choosing which SDR Switch is most suitable for your application. Any loss prior to your SDR receiver, or Pre-Amp, increases the Noise Figure of your entire receive system. Running dual receivers, with your SDR Rx and the receiver of your transceiver, adds a minimum of 3dB signal loss, as well as a 3dB increase in the Noise Figure of each receiver. Some SDR Switches have an Insertion Loss as high as 19.6dB. For those of you who would like to run Dual Receive, I suggest that you take a look at the 4 BNC RXin RXout SDR Switches for 0-70 MHz
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When the SDR Switch is in receiver mode the signal goes from the ANT BNC to the RX BNC. This is the default, no 12VDC applied, path. All of your RX only components will be safely protected when installed after the RX BNC.
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On transmitting your transceiver's PTT keys the SDR Switch and your transmit signal path from your rig goes via the TX BNC straight to the ANT BNC. The Isolation protects all of the components in your receive system. For more information on setting up your SDR Switch and SDR RX please refer to the SDR Setup page. Here
For the Weak Signal DX'er on HF through UHF
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Applications
- Amateur Radio: Enhance your ability to explore bands and fine-tune your radio configurations.
- SDR Experimentation: Ideal for experimentation and learning in SDR signal processing.
- Remote Monitoring Systems: Supports setups where reliable signal switching is critical.
- General RF Applications: Versatile enough for broader use in RF-based projects and testing.
Package Includes
- 1 x SDR Switch 0-70MHz 100W
Shipping:
We have several shipping options for our products, including next-day and Saturday/Sunday delivery for certain items. Please see these options at checkout.
Returns:
If you have any equipment that needs to be returned to Martin Lynch & Sons, please fill out the form below:
Upon receipt of goods you have 14 days to return goods however the goods must be returned in original packaging and care must have been taken with the goods you wish to return. Under distance selling regulations you are not entitled to any refund on carriage charges or modification charges made at your request. Large items cannot be returned if they have been assembled, unless faulty.
Warranty Terms and Conditions
Outside of the 14 faulty return period, returned items cannot be accepted, unless covered by manufacturer's warranty. We will repair as much as possible on site however in exceptional circumstances products may have to be returned to the manufacturer of distributor.
For repairs/replacements under manufacturer’s warranty for any item please download a ML&S return form from the link above and return to ML&S with the faulty product.
International Warranty information
Warranty service for items we sell is available in the U.K. only, unless otherwise noted. It is your responsibility to pay freight for returned items to the U.K. and back to you for desired warranty coverage. All of our NEW products come with a minimum 12 month warranty, (Yaesu & Icom 24 months), with up to 90 days on second-hand equipment. Items returned for service must state "returned goods for repair" on the return air waybill or U.K. import customs duties apply and will be added to your invoice. For more info about returning items please contact our customer help desk, [email protected]




