Depends on the band , HF uses the Ae power feed , Looks a bit odd on mf/lf to see 400 watts etc on MF or 1000 + on LF , so there was a decision , some time back to use the Ae ERP or what ever to indi
Dimitris, On LF and MF where the EIRP is very much lower than the RF power output from the transmitter, the accepted protocol is to specify EIRP in the WSPR database. Incidentally, please will you ch
1 watt ? you can have fun in the data base , in comparing the various 1 watt erp's to see who has the best 1 watt signal , a sort of my 'one' is better than your 'one' ! UK is set to 5 watts : ) G..
Hi Dimitris, Am 06.02.2013 00:18, schrieb Dimitrios Tsifakis: [...] A reason for the discrepancy between different "1 W" values may be that the majority of amateurs would calculate rather than measur
Don't know about Helium balloons Mal Nitrous Oxide may be ? Stefan Are you saying it is all guesswork ??? 10 dB either way !! Hi Dimitris, Am 06.02.2013 00:18, schrieb Dimitrios Tsifakis: Yes, that's
Hi Dimitris, unlike HF, antenna efficiencies at LF can differ vastly from one site to another. So it makes much more sense to state radiated power (ERP) than TX power. Note that under current regulat
Hi Roger and Graham, thanks the the replies, I have now changed my TX power to +27dBm. The efficiency of the antenna is not constant, as the Rloss changes after a rain, but at least +27dBm is closer
Here in VK we are also allowed 5 W, however, if my antenna efficiency calculations are correct, I need an order of magnitude more power to get even close to 5 W radiated. Such an amplifier will cause
Am 06.02.2013 18:27, schrieb mal hamilton: Stefan Are you saying it is all guesswork ??? No, i don't. Maybe +- 6 dB accuracy for most calculations. 73, Stefan
Hi group, I was browsing the WSPR database for MF and noticed that I am the only one declaring a 50 W power. My TX power output is 50 W, however the radiate power is just a tiny fraction of 1 W. What
