In this video, I take a hands-on look at the TinySA Ultra+ ZS704 spectrum analyzer from SeeSii — a compact, powerful RF tool with frequency coverage up to 7.3 GHz. We compare it with previous TinySA models, test real-world RFI at an RV park, and explore how well it integrates with field-ready cases and accessories.
This isn’t just a spec rundown — I take the ZS704 out for a spin, track down sources of noise, and evaluate how quiet (or not) a full-time RV setup really is. I also show off the accessories, cases, attenuators, and setup tips that make this analyzer a must-have for RF hobbyists and ham radio operators.
🧰 In This Video:
• What’s new in the TinySA Ultra+ ZS704 vs other TinySA models
• Field tests: RFI hunting in an RV park using spectrum scans and waterfall display
• Attenuator setup for safe signal testing (including 40 dB + 20 dB stack)
• Case and accessory walkthrough: mesh bags, 3D printed organizers, DC blocks, and more
• Measuring RF noise from charge controllers, LED lights, trucks, and RV electronics
• TinySA as a signal generator and sensitivity test tool
• Advice on avoiding clones and where to buy safe, legit units
🛒 Affiliate Links — Gear Featured in This Video:
Discount,10% off code: X5T6VTAS
Expire Date: 2025-05-07 23:59PDT
👉 TinySA Ultra+ ZS704: https://geni.us/Ellyz
👉 TinySA Ultra+ ZS706: https://geni.us/HBqsnm
👉 TinySA Ultra: https://geni.us/OwOOwWN
👉 TinySA (Starter): https://geni.us/QzwcT
👉 3d Printed TinySA Ultra Case: https://tidd.ly/3yX2x8H (choose "Ultra")
👉 3d Printed TinySA Case: https://tidd.ly/3yX2x8H (choose "Basic")
👉 3d Printed NanoVNA, NanoVNA-H, NanoVNA-H4 Kit: https://tidd.ly/3S3h0Gn
👉 Single TinySA Ultra Case: https://geni.us/ND1Keb0
👉 TinySA+:NanoVNA Case: https://geni.us/FcHdsKp
👉 Small Mesh Bags: https://geni.us/ED4WQ6
👉 40db Attenuator: https://geni.us/Pz4Bdf
👉 20db (cute) Attenuators: https://geni.us/E7K7p3o
👉 DC Block: https://geni.us/lSxU
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