Auxiliary equipment for various GHz measuring purposes and other test reports !
======= Broadband Low Noise Amplifier =======
38.10dB & -100dBm input
........and the next PCB is already installed in the housing
Usable operating frequency range: 600MHz.....3GHz
========= 10 GHz 3 stage preamplifier ========
10 GHz preamplifier , .....used input section of old standard Kathrein LNB with waveguide input.
1. Oscillator switched off ,
2. bandpass filter disconnected ,
3. coupling capacitor and output added ( everything else remains original ! )
Gain ( i expect around 30dB ) and noise figure will be measured soon.
Here's a link to a YouTube video about the amplifier's pass-through range......
https://www.youtube.com/watch?v=BcMFsFqpGXc
Usable between 8.6 GHz and 11.9 GHz.
=========== 10 GHz BPFilter ===========
........and values i measured on my sample which is in stock :
=========== UP Down Converter 10GHz ==========
Auxiliary equipment for various 10,0.....13,0 GHz measuring purposes - Output power max. 1mW
This is an UP and DOWN mixer, meaning it can downmix 10GHz signals to for example 1GHz and UPmix 1GHz to 11GHz. Thus, the IF port output and input are the same as the RF port input and output.
PLL oscillator from: DF9NP https://www.df9np.de
Mixer : Hittite https://www.analog.com/media/en/technical-documentation/data-sheets/hmc220.pdf
It proved its worth, so I built another one.....
Here are a few more down converters built from commercial SAT LNBs.......
====================== VNA ============================
2 Ports VNA KC901R
A very good measuring device for measurements up to almost 10 GHz. Despite the stated range
of 7 GHz , it actually works up to over 9.8 GHz with all its functions. In addition to the RF analyzer
and RF signal generator ( including an AF generator ) , measurements of S11 S22 S12 and S21 are also possible.
https://deepace.net/wp-content/uploads/2020/10/KC901S-User-Manual.pdf?srsltid=AfmBOopfR0QiIXCBj4jj6NpTAdl5YZx8c06JGzIepV1s62TTVFgxWGOj
https://deepace.net/product/measall-dual-ports-handheld-network-analyzer-kc901r
============== 10GHz UPconverter =======================
================= 5.8GHz Antenne =====================
https://www.ebay.at/itm/167727201826?_skw=FPV+5%2C8-GHz-Antenne+mit+8+KreisföRmigen+Polarisierten+Antennen&itmmeta=01K56ATP15SMBBQZV49RZA9MHQ&hash=item270d51fe22:g:N3EAAeSwa55opB5j&itmprp=enc%3AAQAKAAABIFkggFvd1GGDu0w3yXCmi1d25NovXrch5qfxXNC7%2BsbbLL9tW%2BB0F%2Fdl9RIqgYPc%2BZ%2B59E3AsyBVKCTPSVRKkp23YLuA7LUHF%2BA4TJUiO8ZSn8IuO71KNrjli%2Fn9MAs0hGSPAau12tsyhNvzKT0FYmw%2BtQswWEVcrrWTfL%2FmXpDbdqjxyuhNSM8nHIh0wuLNVJvLvgLf76VcPD0zHDCDvWA2UKH9euvnAf9xO40Djtg9b%2F6A1jFpqskMLGWQS%2FW3ncNpDVUlpNZJYsdAg7Oq7JggOde%2FBHZ4OdsyKPKtl3dTW4v8%2B5EJ1G%2FerQWQWJ3Q7aKJ%2FsvD2iE%2B6oLmA4KP7jQKYJfcdgJD7XFF%2Fq2oGwPti5nmaSntwXaDzrK7q2wR8Q%3D%3D%7Ctkp%3ABFBMlOHqyqlm
As it is in its original form, it's useless for us amateur radio operators.
Why ?
Because it's not well tuned, in the entire range from 5 to 6 GHz, the SWR is well over 1: 2.5
A new calibration must be performed.....
After the readjustment, very useful technical values were achieved......
============== " Class A" 2.4GHz Amplifier ==============
First test after the quiescent current setting.....
Consumes a lot of current but is relative linear and therefore suitable for all operating modes, from CW to
the worst modulation DVB-T
Vcc: 10V Icc: 8 Amps test on 2400MHz
Here are my first test results....
Input Output Gain
12,5mW 3,5 Watt ~24,6 dB
30,0mW 8,8 Watt ~24,5 dB
67,0mW 16,0 Watt ~23,8 dB
100,0mW 20,0 Watt ~23,0 dB
147,0mW 25,0 Watt ~22,4 dB
old-fashioned analog measurement....
Material procurement:
1. Mitsubishi modules are available from: pauls@metro-cad.com or sales@metro-cad.com
2. PCB 9a6rzn@gmail.com
======================== 5.8GHz Antenna ==================
Purchased from : https://www.alibaba.com/product-detail/5-8GHz-Customized-Directional-Panel-Flat_1601338133274.html?spm=a2700.prosearch.normal_offer.d_image.2c3867afIKPGKj&priceId=4d60ceaa056e44038c40e3867d033784
As it came, i tested it straight away , without any recalibration , here are the measured values....
I think it's a very good antenna , suitable for use in the frequency range 5700 to 5900MHz ,
with very good values. I haven't tested the opening angle , it's intended for vertical polarization ,
but the mount also allows it to be rotated 90° for horizontal polarization.
At 26.54 euros including VAT shipping and customs , you can't go wrong if you need something like this ? and buy one.
============= Octagon Twin LNB =============
Caution: There are several versions of this product in the same packaging under the same type.
The manufacturer reserves the right to change the internal components as long
as the technical specifications remain the same.
1. Two local oscillators, each with a 27 MHz crystal.
2. Two local oscillators, each with a 25 MHz crystal.
3. Two local oscillators, each with a 27 MHz crystal and a bandpass filter.
4. One local oscillator with a 25 MHz crystal and a bandpass filter.
L.O. Freq. Calculation factor ( without 22kHz !!! ) :
27MHz crystal x 361,1111111111 = 9750MHz for LNB with RDA chip
25MHz crystal x 390 = 9750MHz for LNB with RT320M or other chip
Note: When modifying , keep in mind that the PLL lower limit is
around 9300MHz , below this frequency, it no longer locks !!.
Prompted by IC8EPV 's request, " i would like to receive two ATV stations
with an LNB in the around 10400MHz range, and the LO frequency should be
relatively stable, also for DATV , but exactly the same frequency "
The LNB chosen was an Octagon Twin LNB that had already been
modified once and includes an oscillator.
I simply desoldered one crystal and soldered on another with 24MHz , that's it.
 |
| 24MHz TC 20ppm 24 x 390 = 9360 MHz |
Now screw on the lid and test it..., the signal source is a sweep generator
at 10.400 GHz with aprx. -5dBm output at a distance of 2m from the LNB.
Well done, now I've earned a drink.....
==================== BiasT =======================
......for Freq.range: 10MHz.......1600 MHz Voltage up to 30V Current up to 2 Amper
========= 2pcs 2.4 GHz antenne ===============
Three-element Yagi antenna ( open dipole ) in a styrofoam radome......
....and made in China panel antenna for 2.4 GHz
============= 2.4 GHz Bandpass Filter =============
A "relatively" good bandpass filter for the 2.4 GHz band is available online. It comes in various SMA versions,
mine had one end SMA male and the other end SMA RP female ( hence the need for an adapter ).
Data I measured:
Pass band ( -0.75dB ) 2400.....2470 MHz
Pass band ( -1.5dB ) 2365.....2522 MHz
Pass band ( Fc 2435 MHz ) loss 0.6dB
My recommended maximum CW power is 5 Watts ( manufacturer's recommendation is 10W ).
Hersteller Daten hier: https://www.taoglas.com/datasheets/BPF.24.01.pdf
♠ ♠ ♠ ♠ ♠ ♠ ♠ ♠ ♠ 13 GHz TX UP converter ♠ ♠ ♠ ♠ ♠ ♠ ♠ ♠ ♠
For those who have ideas and can find a use for it, here is a 13GHz UPconverter.
Operating voltage and current: 10,5V.......28V 600mA.........300mA
Required values at the "Sat F" connector for normal operation....
♦ 12V 520mA ( example )
♦ IF Signal 950......1550MHz 0,5mW.......4mW ( example: 1100MHz 1mW )
♦ 10MHz Signal -20dBm ( preferred GPS )
Internal oscillator with external 10MHz signal operates at 11.8 GHz ( PLL with ADF4106BRUZ )
Output Signal: 12,7 GHz........13,4 GHz ( -3dB )
at 12,9GHz 1,25 Watt RF output CW mode
Output connector: WR75
12,900 GHz ---> Also tested with a DVB signal, signal source is HV320 , ( DOWNconverter with LO 10,0 GHz ) ,
Shoulder distance at different output levels ---> here are the test results.....
Safely usable up to 150 mW DVB output power. FM FMTV SSB and CW can be operated with the full 1.2 watt output.
Post is still in progress....
Please also check out other posts, the link continues below.
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