# 智慧火腿 — SmartHamClub

> SmartHamClub (iPhone/iPad app by 毅 万.)

- Source: https://appshunter.io/ios/app/id6761058918 (this page in markdown: same URL + `.md`)
- Developer: [毅 万](https://appshunter.io/developer/1887424045)
- Category: Education, Utilities
- Price: Free with in-app purchases (on sale, was $0.99)
- Age rating: 4+
- Requires: iOS 18.0 · 13 MB
- Languages: American English, Japanese, Korean, Chinese (Simplified, China), Chinese (Traditional, Taiwan)
- Released: 2026-03-27
- Data updated: 2026-08-28
- User reviews in markdown: https://appshunter.io/ios/app/id6761058918/reviews.md

## What is 智慧火腿?

SmartHamClub is an all-in-one app for amateur radio operators and learners. It combines license exam study, satellite tracking, real-time DX spot monitoring,
  SSTV/CW decoding, and locator tools in one place. Whether you are preparing for an exam, tracking amateur satellites, or practicing daily radio operation,
  SmartHamClub gives you practical tools built for real ham radio workflows.

  1. Amateur Radio Exam Study
     In simple terms: Study with built-in Class A, B, and C question banks, review wrong answers, save favorites, and take mock exams.
     Technical features: The study system is built on structured local question-bank data with progress tracking, error review, favorites, randomized answer
     options, and simulated exam scoring. Explanations support rich text and formula rendering for radio, electronics, and regulatory content.
  2. Amateur Satellite Tracking
     In simple terms: Check satellite position, elevation, distance, next pass time, and visibility to know when a satellite may be workable.
     Technical features: Satellite position and pass windows are calculated from TLE orbital data using the SGP4 propagation model. The app combines orbital
     prediction with device location to compute azimuth, elevation, range, AOS/LOS, maximum elevation, and current pass status.
  3. Satellite Frequency and Doppler Support
     In simple terms: View uplink and downlink frequency information and understand how satellite motion affects radio frequency.
     Technical features: The app combines transmitter metadata, uplink/downlink bands, and relative radial velocity to estimate Doppler shift, providing useful
     references for satellite communication, monitoring, and signal decoding.
  4. SSTV Image Decoder
     In simple terms: Use the iPhone microphone to receive SSTV audio and reconstruct slow-scan television images.
     Technical features: The decoder is built around real-time audio capture, frequency demodulation, filtering, pixel buffering, and multi-mode SSTV image
     rendering. It includes decoding support architecture for common modes such as Robot, Martin, Scottie, PD, Raw, and Fax.
  5. CW Morse Code Tools
     In simple terms: Practice Morse code and use the microphone to help decode CW audio.
     Technical features: CW decoding uses audio capture, Goertzel tone detection, timing analysis, and Morse codebook matching. A CW study quiz is also included
     to help users learn characters, rhythm, and code patterns.
  6. HamSpot Real-Time DX Monitoring
     In simple terms: View live DX spots across common operating modes and quickly see what is active on the bands.
     Technical features: DX spot data is fetched from online sources, parsed, sorted, and displayed with local time conversion. Mode filters include SSB, CW,
     RTTY, FT8, and FT4.
  7. Maidenhead Grid Locator
     In simple terms: Convert your current location into a Maidenhead grid locator, or convert a locator back into approximate coordinates.
     Technical features: The app implements bidirectional conversion between WGS84 coordinates and Maidenhead Locator formats, supports multiple precision levels,
     and integrates device location and reverse geocoding for clearer location references.
  8. HF propagation prediction feature based on NOAA space weather data and the ITU-R P.533 prediction model.
  9. Personal Settings
     In simple terms: Adjust language, font size, and light/dark appearance to match your preference.
     Technical features: The settings system uses platform localization and SwiftUI Dynamic Type support for language, typography, and appearance configuration,
     with persistent storage for learning preferences and progress.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| 冠军赞助 | $9.99 | one-time |
| 起步支持 | $0.99 | one-time |
| 咖啡支持 | $2.99 | one-time |
| 热情支持 | $3.99 | one-time |



## Version history (last 5 releases)

### 1.10 — 2026-08-26

Added an HF propagation prediction feature based on NOAA space weather data and the ITU-R P.533 prediction model. We will continue incorporating ionospheric data to improve prediction accuracy.

### 1.9 — 2026-08-22

Basic features (study, satellite tracking) are available for free, while advanced features require a paid subscription (we will continuously improve usability and add more valuable features).

### 1.8 — 2026-06-23

1. Added call sign query function (based on Big CTY data from country-files. In future versions, we may consider more precise call sign queries, but it is highly unlikely that we will integrate data from qrz.com due to the high subscription cost)
2. Added notification function (can be disabled on the same day, and will not be displayed again after being viewed)

### 1.7 — 2026-06-16

1. Added an Antenna Length Calculator supporting: half-wave dipole antennas, inverted-V antennas, 1/4-wave vertical antennas, and long-wire antennas.
2. Optimized the Real-time QSO (Real-time Contact) feature by adding country and region displays for both participating stations.

### 1.6.1 — 2026-05-25

1. Fix some code that may cause crashes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-28.*