Digital Frequency Counter Module Query

[Yorkie]

Just bought a little wide-ranging (100 KHz - 1.1 GHz) digital frequency counter from the orient - an impulse buy at just £11.59 with free P&P. (It arrived in nine working days!)

Anyone else bought one on here I wonder?

As I'd half expected, there are no instructions with it, so it's left to the user to fathom things out. The power supply input is obvious, but the input and setting of IF offsets if desired, is not so obvious. At one end it has an AC symbol and ground, so I'm guessing that's the signal input. On the side, there are two other sockets, one has two pins and is marked 'ECK' and is referred to in the spec as 'external clock input'. The other, alongside it - a six pin socket is marked 'ICSP' and referred to as 'MCU interface'. Huh - are these two sockets for programming the PIC? 

The 'Chinglish' refers to the sockets as 'curved needle square sockets'!
 
RF INPUT (measuring signal input): XH2.54-2P curved needle square socket
ICSP INPUT (MCU interface): XH2.54-6P curved needle square socket
ECL INPUT (external clock input): XH2.54-2P curved needle square socket

The four little 'tactile switch' buttons are marked 'SET' up arrow, down arrow, 'OK' I'm assuming that is for programming an IF offset frequency if desired.

Would make a nice digital frequency display for a home-brew receiver, whether direct conversion or superhet.
I thought I'd just house it in a little box, extend the push-buttons and use it as a handy frequency counter.

Here's the spec:

• Features:
  
  
  Use 8 bit Microchip PIC16F876A,up to 1.1GHz
  Gate time
  0.01 seconds
  0.1 seconds
  1.0 seconds
  Measuring channels ( high and low channels are high impedance )
  
  1)Low channel
  
  Measuring range : 0.1MHz ~ 70MHz
  Measurement accuracy:
  ± 100Hz ( 0.01 seconds gate )
  ± 10Hz ( 0.1 seconds gate )
  ± 1Hz ( 1.0 seconds gate )
  Sensitivity:
  0.1MHz ~ 10MHz: better than 50mVPP
  10MHz ~ 60MHz: superior to 50mVPP
  60MHz ~ 75MHz: not tested
  
  2)High channel frequency (64 points )
  
  Measuring range : 10MHz ~ 1.1GHz
  Measurement Accuracy : ± 6400Hz (0.01 seconds gate )
  ± 640Hz ( 0.1 seconds gate )
  ± 64Hz ( 1.0 seconds gate )
  High channel sensitivity : 10MHz ~ 30MHz: better than 100mVPP
  30MHz ~ 60MHz: superior to 50mVPP
  60MHz ~ 1.1GHz: not tested
  Automatic channel is automatically selected based on the frequency of the input signal level of channel
  
  Crystal measuring channel
  Measuring range : 1 MHz ~ 50 MHz ( the most low-end and highest end untested )
  
  3) . Frequency reference
  5032 package 13.000 MHz Warming voltage controlled crystal oscillator ( VC - TCXO) , frequency stability is ± 2.5 ppm
  
  IF settings
  The minimum frequency is adjustable in steps of 100 Hz, frequency range 0 ~ 999.9999 MHz, can be set to plus or minus IF mode
  
  
  working voltage
  DC input: DC 9V ~ 12V
  working current
  The backlight is enabled: ≤ 75 mA backlight disabling: ≤ 55 mA
  Display
  maximum of 9 digit display
  physical dimensions
  Length * width * height: 92mm × 37mm × 27mm
  Board interface
  RF INPUT (measuring signal input): XH2.54-2P curved needle square socket
  ICSP INPUT (MCU interface): XH2.54-6P curved needle square socket
  ECL INPUT (external clock input): XH2.54-2P curved needle square socket
  POWER INPUT (Power Interface): ① with 3.5mm socket (DC is negative)
  The XH2.54-2P curved needle square socket
   
  

Package Contents
100% Brand New

1 x 0.1～1100 MHz 0.1～ 1.1 GHz Frequency Counter Tester Measurement For Ham Radio

From here:

http://www.ebay.co.uk/itm/181862025294

Any thoughts anyone please?