Legal
Terms of sale
Last updated 14 Oct 2026
These terms apply when you buy an ArcturusSDR licence. ArcturusSDR is made and licensed by HamTEK Ltd ("HamTEK", "we"; our company details are on the contact page) and sold through our online reseller, as described under Buying. The software itself is used under the licence agreement. You must be at least 18 to buy.
Buying
Plans and prices are shown on the pricing page and at checkout. Our order process is conducted by our online reseller Paddle.com. Paddle.com is the merchant of record for all our orders: it sells the licence to you, takes the payment, and issues your receipt and any VAT invoice. Paddle's buyer terms apply to the payment, alongside these terms. Paddle provides customer service for payments, receipts and refunds, and we help with everything else through the contact page.
You check out from your ArcturusSDR account at account.arcturussdr.com, on a secure payment page; we never see your card details. The contract is made when your payment is accepted and your licence is issued. We confirm it by email, with a copy of these terms.
Prices and tax
Prices are shown in pounds sterling and include UK VAT. If you buy from outside the UK, UK VAT is not charged; the checkout works out any sales tax due where you live from your billing address, and shows the full price before you pay. Paddle charges that tax and pays it to the tax authorities. A later change of price never alters a licence you have already bought.
Your right to cancel, and refunds
You can cancel a purchase within 14 days of the day you bought it and have the full price refunded, whether or not you have downloaded or used the software. This goes further than your legal right to cancel, which you keep in any case.
To cancel, sign in to your ArcturusSDR account at account.arcturussdr.com and choose Cancel and refund beside the purchase. Cancelling a licence revokes it on every computer it was activated on, and also cancels anything else you bought for that licence in its 14 days. Cancelling an upgrade, a renewal or an add-on takes back only what it added, and the licence stays yours. Each payment is refunded in full, the way you paid. So that a cancelled licence stops working, ArcturusSDR checks its licence online once in the week after the 14 days end: a computer you keep offline needs connecting to the internet once in that week, or a new licence file from your account. You can also cancel by telling us through the contact page or by email, or by sending us the cancellation form at the end of these terms; say which licence you mean and the email address of your account. The refund is made within 14 days of your cancellation, by the payment method you used.
After the 14 days a licence cannot be cancelled for a refund, but your rights if something is wrong still apply.
If something is wrong
If the software is faulty or not as described, you have legal rights to have it repaired or replaced and, if that does not put it right, to some or all of your money back. Report problems through the issue tracker or the contact page; we will tell you what we have found and what we will do about it.
Subscriptions and renewals
A subscription renews at the end of each period until you cancel it; a maintenance renewal extends the period in which new releases are covered. We email you before each renewal, at least 14 days before a yearly one, saying what will be charged and when. You can cancel from your account at any time: the subscription then runs to the end of the period you have paid for and is not charged again. If we change the price of a subscription, we give you at least 30 days' notice by email before the new price applies, and you can cancel before then. A renewal payment can be cancelled for a full refund within 14 days of being taken, in the same way as a purchase.
Business buyers
If you buy for a business rather than as a consumer, the statutory consumer rights referred to above do not apply, but the 14-day cancellation above still does, and the licence agreement's terms for businesses apply.
Complaints
If you are unhappy with anything, tell us through the contact page and we will reply within five working days. We are not obliged to use an alternative dispute resolution service and have not chosen one; if we cannot resolve a problem, the courts described below can.
Law
These terms are governed by the law of England and Wales, and disputes can be brought in the courts of England and Wales. If you are a consumer living in Scotland or Northern Ireland, you may also bring proceedings there. If you are a consumer living outside the UK, you keep the protection of the consumer law of your country that cannot be excluded by agreement, and you may bring proceedings in your own courts.
Cancellation form
You do not have to use this form: cancelling from your account, or a message through the contact page or by email saying that you want to cancel, is enough.
To HamTEK Ltd (address and email on the contact page):
I give notice that I cancel my contract for the supply of the following ArcturusSDR licence: [plan], bought on [date], under the account [email address].
Name: [your name]
Address: [your address]
Date: [date]