Scan Speed PRO-106/197

[ronhl]

I've done some tests on these 2 scanners for scan speed thru conv objects only.
Both loaded with exactly the same programming file of 1462 freq's or objects in order of freq from low to high, 118 up to 485 mhz.
Both have the ant input terminated into 50ohm load.
Both use 1 birdie freq stored in as a start freq and used to lock up the radio when it completes 1 full scan in order to measure the time it took.
My results were 25ch/sec pro-197 and 24ch/sec pro-106 which is about 1/2 the specified 55ch/sec from their manual specs.
This seems very slow so I was wondering if this is a valid test?

 

[RaleighGuy]

Have you considered any changes to the internal electronics of the units? Those aren't new out of the box, they are older models and depending how much usage and amount of heat generated the scan speeds may be changed. There are many things that can change scan speed including your location.

 

[chief21]

My results were 25ch/sec pro-197 and 24ch/sec pro-106 which is about 1/2 the specified 55ch/sec from their manual specs.

If I remember correctly, the maximum speed for most scanners occurs when doing a simple frequency scan (up or down). In this case, the scanner only needs to increment each frequency, as opposed to moving to a completely different frequency on each step when doing a memory channel scan.

 

[wtp]

Scanning Rate......... Approx. 55 channels per second
Search Rate ................... Approx. 90 steps per second

https://www.rigpix.com/rs-realistic/radioshack_pro106_manual.pdf

 

[MiCon]

I never gave any thought to this, but after reading these posts .....
I would think that the most accurate way to measure a scanner's scan rate would be to do it with no programming at all. All channels devoid of frequencies or anything that might cause even a millisecond of detection/ delay, with the squelch turned all the way up and no antenna connected, to also avoid detecting of any signal or noise.