設備已使用多年
舊天線、舊放大器及老化接頭常會累積損耗，即使未完全壞，也會令接收餘量越來越少。
香港電視覆蓋查詢Hong Kong TV Reception Lookup
天線升級Antenna Upgrade
設備評估
甚麼情況值得
評估升級天線
不是每次起格都要換天線，但如果問題持續多年、設備老化，或大廈覆蓋本身偏弱，正式評估通常比反覆猜測更有效。
Equipment Review
When An Antenna Upgrade
Is Worth It
Not every breakup issue means you need new hardware. But if the problem is persistent, the setup is old, or the building result is weak, a proper assessment makes sense.
常見值得評估的情況
長期起格或聲畫不同步
如果相同症狀多年反覆出現，而重新搜台與更換線材都無明顯改善，就值得評估整體接收系統。
大廈結果偏弱
當大廈本身屬邊緣接收，任何額外損耗都會放大問題，舊設備更可能變成瓶頸。
搬屋或重新裝修
若本來就要重新拉線或改位，順便檢查現有天線是否仍值得保留，通常更有效率。
Situations That Often Justify Review
Hardware Is Old
Old antennas, boosters, and connectors can lose enough margin over time to create recurring instability.
Persistent Pixelation Or Sync Issues
If the same symptoms return over months or years and basic fixes do not help, review the whole receive path.
The Building Result Is Weak
On marginal buildings, every extra loss matters more, and ageing hardware becomes a more likely bottleneck.
You Are Already Rewiring Or Renovating
If the setup is being changed anyway, it is a good moment to assess whether the existing antenna still makes sense.
甚麼情況未必需要換
只是輸入源錯誤
若問題其實只是電視停在 HDMI 或未重新搜台，換天線不會解決真正原因。
只有某一條線有問題
如果只是單位內某個插座或短線老化，先處理局部線路通常更合理。
設備新而且大廈結果良好
當大廈屬可接收，而設備亦不舊，問題更可能在設定、接頭或個別線路，而非天線本體。
When Replacement May Not Be Needed
It Is Only The Wrong Input Or No Scan
If the real issue is a TV setting mistake, changing the antenna will not fix the actual cause.
Only One Short Cable Path Is Bad
If a single outlet or short cable is the issue, local wiring work is often more appropriate than a full antenna change.
The Building Result Is Good And The Setup Is New
That usually points more toward settings, connectors, or one local signal path than the antenna itself.
下一步
想先看大廈結果，再決定是否值得做天線評估？
先查地址，再把設備年期及症狀發給 Techiteasy，更容易判斷是應先做局部維修，還是值得正式評估升級。
Next Step
Need the building result before deciding on an antenna review?
Search the address first, then send the equipment age and symptom summary to Techiteasy.