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K2 Transceiver Kit – Elecraft
https://elecraft.com/products/k2-the-classic-hf-transceiver-full-kit
The K2’s low receive current (approx. 150 mA in battery save mode) makes portable operation possible from small gel cell batteries. The K2 even includes an option for an internal 2.9-Ah rechargeable battery. Easy Alignment: No …
Elecraft - K2 Rec Low Audio Output and AGC Adj
http://elecraft.365791.n2.nabble.com/K2-Rec-Low-Audio-Output-and-AGC-Adj-td442767.html
I've noticed a larger number of posts regarding low audio output with the K2. I'm sure there are various reasons for low audio. Such as wiring the speakers wrong etc.. Poor soldering etc. I have two K2's and both of them had to be hooked up to external amplified speakers in order to provide a comfortable room listening volume.
Measuring The Elecraft K2 SSB TX/RX Audio Response
https://www.qsl.net/kd2bd/ksb2.html
The result is a complete, overall picture of the K2's transmitter audio response. Figure 2: Relative RF Output Voltage as a Function of Modulating Frequency. In Figure 2, the effects of the low frequency audio roll-off modifications can be seen, and are most pronounced on the LSB curve, which is the desired result. In particular, the sharp peak on the low frequency end of the …
Re: [Elecraft] K2 TX audio
On my Rev-A K2, I've changed crystals, changed the filter capacitors for 2.6kHz, and made the drive modifications from KI6WX (I'm driving transverters on 10m). People complain that the audio doesn't sound right, and the Spectrogram grapth is far from flat. I'm OK with RX audio but people complain about my TX audio.
Re: [Elecraft] K2/100 audio
Position the 'knee' of the low frequency slope of the passband. ... To: [email protected] Subject: [Elecraft] K2/100 audio I assembled my k2/100 quite some time ago. I finally used it on ssb. I wastold my audio was too tight. I think the early ones were setup for contestaudio.
K2_Options – Elecraft
https://elecraft.com/collections/k2_options
Regular price. $299.95. K2 Audio Filter & Real Time Clock. Regular price. $139.95. KBT2 Internal Battery Kit. Regular price. $199.95. KBT2 w/o Battery.
G3VGR's Elecraft K2 Page - QSL.net
https://www.qsl.net/g3vgr/k2.html
The 2 option boards have now been installed in the completed K2. The next option will be the 100W PA: The completed KPA100 Amplifier option ready to install in the K2. This was another nice kit to build: The KAF2 Audio Filter and Real Time clock is the last Elecraft option to be fitted to my K2: The K2 with the 4 options installed.
K2 Mods and Notes – Elecraft
https://elecraft.com/pages/k2-mods-and-notes
Production phase-in details (if applicable) K2 Upgrade Parts. An informational sheet for K2 upgrades. K2 LCD and Backlight Pre-installation Notes. Application Note: K2 LCD and Backlight Pre-installation, W6FVI & W3FPR. January 9, 2007. Control Cable to …
Mods, Notes & Alerts – Elecraft
https://elecraft.com/pages/mods-notes-alerts
Incorrect VOX operation (VOX 'hangs') and/or low or corrupted TX audio, when using a front panel mic which requires BIAS to be supplied to the mic through the audio pin. (Elecraft MH2, MD2, Proset-K2 with electret elements etc.) Modification involves addition of 1 wire to the rear of the K3 Front Panel board.
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