Stupid Question but I don't know Answer SWR adjustment on dual band whip.

[WeatherWatcher]

Right I have always used separate antenna for each frequency but am going to invest in a Dual band mobile whip with centre loading coil.
Please can some one advise me the best way to a good SWR reading on both bands . Preferably simple instructions ie which band first etc. Use will on FM only 2m and 70cm ideally optimised for the repeater parts of each band,

[Buick Mackane]

Far as i know most are pre-tuned and shouldn't require any adjustments.

[WeatherWatcher]

Cheers, was just a bit worried as it is being sent in the mail and the top section may need fitting either above or below the centre loading.
Antenna is a NL770S at approx. 45cms long capable of 100W allegedly with a PL259 mount.

[Tigersaw]

Its best just to assume the UHF is pre-set correctly unless you have an analyser that will reach that high, and even then it can appear different one day to the next.

[DaveP]

Before spending your hard earned money, read the reviews on ham.net The NL77 gets quite a paisting, for quality of materials and also the quality of build. Also if you intend to use it on 70cm the loss by the PL259 mount will be significant.
They may be a bit more expensive but look at the Sharmer range, all pre-tuned the quality is pritty good and they work well.

73s Dave