Sark 100 Analyser Review
Posted: 26 May 2018, 22:51
I recently bought one of these on ebay and i'm quite surprised how well it works for the price (£50ish) Seems to be reasonably accurate, And it has quite a few features such as measuring inductance & capacitance.
It can also be hooked up to a PC where you can download SWR info and update the firmware etc. There is also a built in calibrate feature, Which consists of attaching three resistors to the analyser (50/150/274 ohm) But mine was pretty accurate straight out the box.
It comes packaged in a Bomb Proof metal enclosure, The screen is well lit and easy to read. And its very easy to use, Attach your antenna select the required band and hit scan, It then scans the entire band and displays the bandwidth (Beeps when the SWR goes above 2.0 ) and the frequency of the lowest SWR. As mention above other modes can be selected.
On to the not so good points, It has a recess on the back panel to install a battery, But doesn't include a battery tray, Although it does provide the wiring for one, These can be picked up for a few quid on ebay. I tried running mine from 6 x AA Batteries, Although it worked it didn't match the accurate readings i got when i ran it from a 12 volt mains adaptor. So really needs to be ran from 8 x AA batteries, An 8 X AA battery tray won't fit inside the battery compartment, But can be screwed to the back panel.
Another point to note is the displayed frequency and the actual frequency the analyser is transmitting on aren't quite in synch, For example if its displaying 7.000-Mhz it will actually be transmitting closer to 6.990 - Mhz, Although this is hardly a deal breaker.
Another minor pain is that it reverts to the 20m band when switched off and back on.
But considering the price the above are just trivial.
You'll probably read a lot of hit & miss reviews on these, Think its really down to quality control, These were previously available as kits, And i think a lot of the negative reviews are based on the earlier kit versions.
Coverage is 160m to 6m, Power consumption is 12 volts at around 300 ma.
So to sum it up they're a lot of bang for the buck, And get the from me.
It can also be hooked up to a PC where you can download SWR info and update the firmware etc. There is also a built in calibrate feature, Which consists of attaching three resistors to the analyser (50/150/274 ohm) But mine was pretty accurate straight out the box.
It comes packaged in a Bomb Proof metal enclosure, The screen is well lit and easy to read. And its very easy to use, Attach your antenna select the required band and hit scan, It then scans the entire band and displays the bandwidth (Beeps when the SWR goes above 2.0 ) and the frequency of the lowest SWR. As mention above other modes can be selected.
On to the not so good points, It has a recess on the back panel to install a battery, But doesn't include a battery tray, Although it does provide the wiring for one, These can be picked up for a few quid on ebay. I tried running mine from 6 x AA Batteries, Although it worked it didn't match the accurate readings i got when i ran it from a 12 volt mains adaptor. So really needs to be ran from 8 x AA batteries, An 8 X AA battery tray won't fit inside the battery compartment, But can be screwed to the back panel.
Another point to note is the displayed frequency and the actual frequency the analyser is transmitting on aren't quite in synch, For example if its displaying 7.000-Mhz it will actually be transmitting closer to 6.990 - Mhz, Although this is hardly a deal breaker.
Another minor pain is that it reverts to the 20m band when switched off and back on.
But considering the price the above are just trivial.
You'll probably read a lot of hit & miss reviews on these, Think its really down to quality control, These were previously available as kits, And i think a lot of the negative reviews are based on the earlier kit versions.
Coverage is 160m to 6m, Power consumption is 12 volts at around 300 ma.
So to sum it up they're a lot of bang for the buck, And get the from me.