18 Monday, (11) 6.10.1.12. Local Radio Control. Each radio shall include a The minimum cable length for the microphone and speaker Midland January 31, remote desktop microphone and speaker. This equipment shall shall be five feet. See Addendum 3. 2011 6:31:24 include a PTT switch, receive audio speaker, receive audio mute PM and volume control, and receive audio monitoring switch to bypass the squelch before transmitting. The minimum cable lengths for the microphone and speaker shall be 20 feet. Question: Is this a correct statement? More than 5-6 feet would be considered “Remote Control”. Especially when this radio supports E&M and Tone Control. 19 Monday, (12) 6.10.1.15. Receive Audio Noise Squelch. Each radio shall be The last sentence of Section 6.10.1.15 has been deleted Midland January 31, equipped with a receiver squelch circuit that can automatically from this ITB. See Addendum 3. 2011 6:31:24 mute the received audio in the absence of an incoming signal. The PM circuit shall be comparator based and compare a carrier automatic gain control signal with a threshold sensitivity that the operator can adjust during normal radio operation. The circuit shall include a noise compensator to squelch audio when only burst noise is present. The carrier squelch sensitivity shall conform with and be adjustable over a minimum of 6 dB of sound pressure level starting from the maximum squelch sensitivity setting, in any receiver mode of operation. Receive audio noise squelching shall also support remote interfacing and voter operation via tone control or E&M signaling. Question: What is meant by highlighted sentence?
18 Monday, January 31, 2011 6:31:24 PM (11) 6.10.1.12. Local Radio Control. Each radio shall include a remote desktop microphone and speaker. This equipment shall include a PTT switch, receive audio speaker, receive audio mute and volume control, and receive audio monitoring switch to bypass the squelch before transmitting. The minimum cable lengths for the microphone and speaker shall be 20 feet. Question: Is this a correct statement? More than 5-6 feet would be considered “Remote Control”. Especially when this radio supports E&M and Tone Control. The minimum cable length for the microphone and speaker shall be five feet. See Addendum 3. Midland 19 Monday, January 31, 2011 6:31:24 PM (12) 6.10.1.15. Receive Audio Noise Squelch. Each radio shall be equipped with a receiver squelch circuit that can automatically mute the received audio in the absence of an incoming signal. The circuit shall be comparator based and compare a carrier automatic gain control signal with a threshold sensitivity that the operator can adjust during normal radio operation. The circuit shall include a noise compensator to squelch audio when only burst noise is present. The carrier squelch sensitivity shall conform with and be adjustable over a minimum of 6 dB of sound pressure level starting from the maximum squelch sensitivity setting, in any receiver mode of operation. Receive audio noise squelching shall also support remote interfacing and voter operation via tone control or E&M signaling. Question: What is meant by highlighted sentence? The last sentence of Section 6.10.1.15 has been deleted from this ITB. See Addendum 3. Midland
725-500-12-1Complete+Contract+Amendment+5.docx