delara news Delaware Amateur Radio Association, Delaware OH   VOL 36 NUMBER 12
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© DELARA News, the official monthly newsletter of the Delaware Amateur Radio Association, Delaware, OH


Noise Sleuths! 

We have a pesky and very irritating noise problem at the Red Cross station. It first reared up during Field Day last June, and just stomped all over our radio operating. We thought we had it- or at least part of it- when Ben and the ARES gang turned on the HF digital rig, and the laptop power supply made itself known. We have changed out the power supply with a name brand (which still could be a problem, but doubtful). Several subsequent operations went without a problem…until last month’s big weekend contests brought out the worst in AC hums for President Joe who was trying to operate.  So we’re not completely resolved, and we are starting from square one to try to isolate the noise. Several days ago, a group of intrepid noise hunters stormed the ARC.  Just like a malfunctioning car when a mechanic is close by, we couldn’t find any “in your face” noise. We were able to isolate some soft noise to a bank of battery charges (the radios are not in service) so we disconnected that. We also found that the telephone system is radiating a series of close-spaced birdies all across 80 meters. This signal can be heard throughout the building, inside and out. We have asked to have the system looked at to see if we can reduce that noise.  Additionally, George “wizard of everything computer” Hafler has a logging program running, checking noise levels every 15 minutes. We’ll see if we can observe a pattern that might help figure out where the big stuff is coming from. In the meantime, if YOU operate from the station and are faced with really bad noise (typically on 40 meters, sometimes 80) please let us know right away!   We need to get this arrested so our contesters can operate. Digital Radio at the ARC We now have a CS800  DMR radio installed at the ARC.  This radio has zones for Mt Gilead, Marion, Columbus and Marysville installed. Talk groups are consistent with the addition of some ARES- oriented talk groups such as surrounding states and the FEMA Region 5 talk group. This will be helpful in case of a wide spread emergency. Please feel free to fire this radio up and experiment with DMR!! George WD8KNC    
DELARA Club Station Agreement Use of the club station is limited to DELARA members who are current on their dues. If in doubt, ask!  The station manager’s names and phone numbers are posted on the station door. There is a lock box on the outside of the building to get a key to unlock the outside door and a keypad lock for the station door.  The keypad code will be changed periodically. Please be aware that a camera records people coming into or out of the station.  This is for security and is not designed to monitor your operating. Please attend an orientation session, or ask for a demonstration, before operating at the station. Codes for the doors are not to be shared with friends, family members or other non-DELARA members. Please announce your intention to use the station via the club’s email reflector so that others December plan around your intention. Operation of the stations must be within the bounds of your license. Please be extremely careful with drinks or food; food should be kept in the kitchen.  You are responsible for cleaning up your own mess. Please be aware that the Red Cross owns the building has much property in the building and respect for their property is expected. Most of all:  PLEASE USE THE STATION!! IT’S THERE FOR ALL CLUB MEMBERS! Remote Radio is easier than you’d think!   When you connect via remote to the DX5000 you have some options. For a contest you can start up the FT2000RC emulation, N1MMControl, And N1mm or A more straight forward approach would be to start up AIO. AIO has a built in emulator so you do not need N1MMControl, FT2000RC or anything special. Plus the built in rig has a much smaller foot print. I've attached a picture of the built in rig for your inspection. George, WD8KNC