Compare your signal strength, voice quality, and PTT technique to your fellow operators with this recording from the June 16, 2020, On-Air Club Meeting
Check-ins
(in order of appearance)
| ID | RMS | Δ | F | Note |
|---|---|---|---|---|
| W0ILO | -32.23 | -8.68 | ||
| W0ILO CW | -33.21 | -9.66 | ||
| W0JPJ | -32.23 | -8.68 | ? | |
| W0CZ | -27.90 | -4.35 | U | |
| K0CRF | -24.62 | -1.07 | V | Double w/ W0CZ |
| KC0DCF | -31.87 | -8.32 | V | |
| KC0GQE | -33.23 | -9.68 | V | |
| WC0G | -32.08 | -8.53 | U | |
| W0HNV | -24.50 | -0.95 | U | |
| WD0EGC | -31.35 | -7.80 | V | |
| W0DVL | -34.44 | -10.89 | V | |
| KC0HIG | -25.03 | -1.48 | V | |
| KE0KNV | -26.21 | -2.66 | V | Truncated |
| KA0LDG | -25.80 | -2.25 | V | Noisy |
| K0OP | -23.55 | 0 | U | |
| KC0PFS | -27.63 | -4.08 | U | Distorted |
| AI0Q | -27.42 | -3.87 | V | Distorted |
| K0RQ | -26.14 | -2.59 | V | Distorted |
| KC0SHM | -24.36 | -0.81 | U | |
| K0STK | -24.27 | -0.72 | U | Double w/ KK0V |
| KK0V | -25.86 | -2.31 | V | |
| N0TSZ | -28.01 | -4.46 | V | Truncated |
| ??? | -30.76 | -7.21 | V | Distorted |
Legend
- ID - operator callsign
- RMS dB - RMS level of transmission in dB
- Δ dB - dB difference with loudest transmission (K0OP)
- F - Frequency band used
Frequency use based on the repeater tones:
- VHF: 13
- UHF: 7
About this recording
This recording was captured from the VHF side of W0ILO, Moorhead, during the RRRA On-Air Club Meeting on June 16, 2020, with an Alinco DJ-G7 Handheld Transceiver and the Audacity audio editor and recorder.
Audio level measurements were determined using the Audacity “Contrast” analysis feature on each check-in; clicks generated by squelch opening and closing, the post transmission noise burst, and the courtesy tones were omitted from the level analysis. These measurements were made before the recording was normalized.
Post-production
Equalization to remove content below 140Hz and above 2.8KHz
Processing with the Audacity “Pop-Mute” plug-in to reduce the magnitude of the squelch artifacts present at the beginning and end of each transmission
Replacement of silence exceeding 1.25 seconds between check-ins with 1 second gaps using the Audacity “Truncate Silence…” effect
Truncation of the NCS Operator’s opening announcement
Normalization of the entire track to -1dB ; no level adjustments were made to individual check-ins
Encoding in MP3 format in Variable Bit Rate Mode (quality level 6: 95–135 kbps)
