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Beacon Time - From Ends vs Start of TX?

I am beaconing every 15min on 2m to test range as I move away from my QTH. I observe that the TX time appears to drift about 1sec per 15min interval. My PC's clock is GPS disciplined so very accurate.

Is the beacon timing driven as 15m from the end of TX rather than initiating every 15min perhaps?

BRET/N4SRN

3 comments

Comments (3)

irad d

Feb 07, 2023

VarAC reset the beacon time AFTER the TX has been successfully queued for TXt. In addition there could be additional delays such as BUSY frequency etc. The whole calculations before putting a beacon in the queue might take a total of 1 second more or less

73s

Irad

cbjesseenh

Feb 07, 2023

Replying to

OK, thanks - that fits with my observations beaconing at 50W on 2m from a rooftop vertical. Driving away from my QTH I heard a signal on 144.275 at ~15mi line-of-sight distance but nothing 15min later. In my location/geography, VaraAC will be useful for local comms on 2m - a better range than voice for sure. I’ll work on mapping NVIS for intermediate range on HF.

BRET/N4SRN