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New to SEXTANT G 5HPnD

Posted: Tue Sep 10, 2013 6:14 pm
by Jimmy
Hi all
I have 3 small question.
I have set up 2 SEXTANT G 5HPnD antenna up over 7 Km, but it is not running so good, it is stable but rely slow speed, so now we need to repoint again.
I spend some hours to day on one end to get better signal, but still it is only -89 db, but I am working on it, but the bad thing is that nr 2 antenna is in a 30 m mast, so
Q Number 1 what is the best way to tune in for best signal, other then signal, cuss we can point some degrees on the antenna with out chance in signal?
Number 2: (Tacking from the demo site) Under wireless in advance mode there is a field call Antenna Gain, what is that for? SEXTANT 5HPnD is 18 db antenna, do I put 18 in that field?
Number 3: (Also from demo site) Under wireless there is a field call Frequency mode, default it is put to manual-txpower, but what do I use it for?
Maybe some more Q later on….

Cheers
Jimmy

Re: New to SEXTANT G 5HPnD

Posted: Tue Sep 10, 2013 7:36 pm
by honzam

Re: New to SEXTANT G 5HPnD

Posted: Wed Sep 11, 2013 9:37 am
by Jimmy
Hey honzam
ya i trying to read, but still i have a Q.

antenna-gain (integer [0..4294967295]; Default: 0)

Antenna gain in dBi, used to calculate maximum transmit power according to country regulations.

I rely don't understand this, cuss how dit dbi end up with transmit power? I say antenna-gain and my antenna is 18 db antenna, so do i need to use this feld?

Again sry, but i am new to all this, it is not VHF signal anymore :)

Cheers
Jimmy

Re: New to SEXTANT G 5HPnD

Posted: Wed Sep 11, 2013 12:55 pm
by honzam
Yes, if you put number 18. Then sextant reduce TX power.

Re: New to SEXTANT G 5HPnD

Posted: Wed Sep 11, 2013 1:26 pm
by ste
Hey honzam
ya i trying to read, but still i have a Q.

antenna-gain (integer [0..4294967295]; Default: 0)

Antenna gain in dBi, used to calculate maximum transmit power according to country regulations.

I rely don't understand this, cuss how dit dbi end up with transmit power? I say antenna-gain and my antenna is 18 db antenna, so do i need to use this feld?

Again sry, but i am new to all this, it is not VHF signal anymore :)

Cheers
Jimmy

Search for EIRP and see how it is calculated. Regularory limits are given in EIRP for most bands.

Re: New to SEXTANT G 5HPnD

Posted: Thu Sep 12, 2013 11:43 pm
by Jimmy
hmm i need to read more in to this.

THX

Cheers
Jimmy