A U.S. Manufacturer of Repeater and Interoperability Controllers and Accessories

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Q: How do I delay the PTT on a port after a power cycle?

After a power failure, some radios require that the PTT not be asserted for some amount of time.  You might need this if you have a tube power amplifier that needs to warm up, a Yaesu DR-1X that might lock up, or a Kenwood TKR-x50 Version 1 that switches modes.

This example uses a User Timer (see page 20-1) that is started by the Power-Up Macro (see page 5-28).  Macros disable the transmitter PTT (see page 11-26), then reenable it after the delay time.

S-COM 7330 and the Yaesu DR-1X

Submitted by davemac on Tue, 05/27/2014 - 06:23

At Dayton, some of you may have noticed an S-COM 7330 mounted in a rack in the Yaesu booth between two Yaesu DR-1 System Fusion repeaters.  This demonstration showed how an S-COM 7330 can provide analog linking between two DR-1's as well as with other analog linking and repeater equipment.

S-COM In The News

Submitted by davemac on Sun, 05/27/2012 - 12:06

The S-COM 7330 is shown in the May 2012 issue Mission Critical Communications, page 36, in a product roundup called What's New: Interoperability.  If you receive the magazine and have that issue, be sure to take a look.

Updated 7330 Speech Library Available!

Submitted by davemac on Sun, 05/15/2011 - 18:29

This updated Speech Library, SpLibEng_1.2, shortens the words in the library by trimming ~5% of quiet from each word. Overall, this has the effect of making sequences of words sound faster.  This library includes the changes from SpLibEng_1.1 which increased the amplitude of all words to full scale and fixed the pronunciation of "Joaquin".  This update replaces the 7xxx_words_1.0.bin that has been shipping in all previous releases.

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