Skip to content
View in the app

A better way to browse. Learn more.
Ham Radio Base -Powered By Ham CQ DX

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.
☀ Solar
SFI 147
SN 141
A 10
K 2 Quiet
X-Ray C3.5
Wind 416.0 km/s
Aurora 2
Updated 00:30 UTC HamQSL · N0NBH
Day 80/40m Fair 30/20m Good 17/15m Good 12/10m Fair
Night 80/40m Good 30/20m Good 17/15m Good 12/10m Poor

Callsign Lookup
_
Vanity Call Signs Available
Enter filters above and click Search.
ⓘ Callsign lookups are in real time via the FCC database. Vanity callsign availability is refreshed daily at 6:00 AM CST. The vanity search may be unavailable for a few minutes during this update.
Live DX spots
Live DX Spots — 70cm via PSKReporter · scroll or pinch to zoom
Band
Mode
Time
Loading map data…
MHz DX Spotter Info
Recent spots —
Select a band above to load spots
Ready — select a band to fetch live spots

First QRP kit build - seeking advice on efficiency tips

Just got my Tech license and want to dive into QRP. Looking at building the QRPLabs QCX+ as my first kit. Any advice on maximizing efficiency? I keep reading about antenna matching being critical - is an SWR meter essential? Also wondering about battery selection for portable ops.

Want to make sure I don't waste precious watts anywhere in the system!

  • Quote
  • Mark as Solution
    •
    Like Like ×
    • Replies 2
    • Views 103
    • Created
    • Last Reply

    Top Posters In This Topic

    Popular Days

    Featured Replies

    Every component in the signal path becomes critical when transmitter power cannot compensate for system inefficiencies - congrats on diving into QRP! Yes, get an SWR meter. Even efficient tuners introduce losses that significantly impact effective radiated power at QRP levels.

  • Quote
  • Mark as Solution
    •
    Like Like ×

    Great choice on the QCX+! I've built several of them...they are amazing! For batteries, I'd suggest LiFePO4 - they maintain voltage well under load. The QCX+ draws very little on receive so battery life is excellent.

  • Quote
  • Mark as Solution
    •
    Like Like ×

    Antenna performance becomes absolutely critical in QRP operations where every decibel of antenna gain or system efficiency loss directly impacts communication effectiveness Don't skimp on the antenna system - it's where you'll see the biggest gains for your investment.

  • Quote
  • Mark as Solution
    •
    Like Like ×
    • Guest locked and unpinned this topic
    • Guest locked, unpinned and unlocked this topic
    • Guest unlocked, unpinned and locked this topic

    Join the conversation

    You are posting as a guest. If you have an account, sign in now to post with your account.
    Note: Your post will require moderator approval before it will be visible.

    Guest
    Reply to this topic...
    Go to topic listing

    Account

    Navigation

    Search

    Search

    Configure browser push notifications
    Chrome (Android)
    1. Tap the lock icon next to the address bar.
    2. Tap Permissions → Notifications.
    3. Adjust your preference.
    Chrome (Desktop)
    1. Click the padlock icon in the address bar.
    2. Select Site settings.
    3. Find Notifications and adjust your preference.