Submit a Story/Contact

If you would like to submit something that relates to cheap SDR (a project, blog post, something interesting you have found), please email us at [email protected].

We will look at your submission and if we think it is a good fit for our blog make a summary post about it, making sure to link and credit your original source. If you don't have your own website or blog, don't worry, just write about your project in an email and we will host any images or documents related to your project for you. Usually we will get to your submission within a few days.

Please note that we will not accept payments or incentives in return for any type of post except for product samples for an honest review. If you are interested in writing a non-commercial guest post for us, please also contact us on the above email address.

Product/Shipping Support

If you have a general question about RTL-SDRs or SDRs or third party software we ask you to please ask in our forums. If you email us we may not respond to questions about third party software as this should be asked in the forum.

If you need troubleshooting support please first ensure that you have been through our Quickstart guide and the troubleshooting section on it, as well as our V3 users guide. Common questions like how to use the HF mode and how to activate the bias tee are explained on the V3 users guide. 

If you have a question about shipping of an item please first read the shipping policy on our store and see if it answers your question. The shipping information is just under our product listings. If it is a request for tracking details please first check your old/deleted/spam mails for the order confirmation email which contains the tracking details. There will have been two emails from our email at [email protected], the second of which contains the tracking details.

If you suspect a lost postal item please contact your local postal agency first and inquire there. They have more information than we have. If they confirm it as lost or not received after a long time then please let us know and we can open an investigation on this side as well. Usually we must wait at least 6 weeks from the date posted before we can open a lost parcel investigation.

For everything else such as confirmed lost postal items, warranty claims and support inquiries that aren't covered by the quickstart or troubleshooting guide then please contact us at [email protected]. We aim to always reply within 1-2 business days. If we don't respond within 3 business days then the mail may have gone to our spam folder. Please try to email again using different keywords. We do check our spam filter once a week just in case, but some messages could still be missed. Remember, if you have questions about third party software, please ask in the forums only.

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  1. William James


    My name is William from Infolinks Media and we are allocating budgets from a few select brands that we have quarterly placements for. I’m now in the process of evaluating different websites to see which could be a potential fit for our advertisers.

    Our research team has reviewed and determined it to be a good fit based on your audience, engagement, past performance, and the quality of the site’s content.
    I’m trying to lock down these budgets this week. Are you available for a quick call tomorrow to discuss this opportunity?

    I look forward to hearing from you.

    Thank you,

    William James
    Media Supervisor
    Infolinks Media, LLC
    P: 551-252-1935
    E: [email protected]
    Schedule a call:

  2. David

    Sounds like you are trying to receive the signal with the repeater, have the repeater retransmit the signal so the SDR can hear it. If this is the case the repeater out probably overpowers the input to the SDR. Better to use a preamp on the sdr or tap off the signal in the repeater and send some to the SDR if you actually need it repeated for others in the area and not have a separate antenna on the SDR.

  3. raman

    we are trying to capture mobile signals, and in areas where the signals are weak, we install a GSM repeater to enhance the signals. but the compatibility between the gsm repeater and the SDR is creating problems. Any suggestions, tips are most welcome

  4. David

    What do you call a repeater? You need a preamp, preselector, or if using a transmitter an amp. A repeater is supposedly something that hears a signal then retransmits it at a higher power or in a certain direction.

  5. raman

    hello all, i need to boost the mobile signal recived by the SDR, but when i connected a mobile repeater to enhance the signals, the available frequencies as shown by the software, reduced to just 2-3 . how can i integrate a mobile signal repeater to provide better connectivity to the SDR?

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