Skip to content

Latest commit

 

History

History
29 lines (26 loc) · 21.3 KB

Testpage_ludwich.md

File metadata and controls

29 lines (26 loc) · 21.3 KB

Looks good! ODT simple copy & paste

Quansheng UV-K5 Manual

Introduction

So you fell for the hype and bought yourself your first handheld transceiver (HT)? Or, maybe you are an experienced ham. Hopefully you will find this manual helpful. As a former Army radio operator and naval communications technician, I still found the new HT daunting and confusing. So, I put together this manual in hopes of documenting what I learned along the way and so that others could be helped as well.

Lets dive in!

Device



Menus

The menus on the UV-K5 can be rather daunting and confusing. Here is the listing of each menu item, in order. I have included the text from the manual as well as my own explanations.

SQL – Squelch Level – 0-9 – Squelch is a feature of a radio that cuts the speaker when there is no transmission. It usually uses the presence of a carrier signal to detect a transmission and turn the speaker back on. In some cases, it can use an audio frequency as well. The squelch level determines how strong the detected carrier signal has to be before turning the speaker back on and ranges from 0 (off) to 9 (very strong) with the default being 4.

STEP – Step Frequency – 2.5K/5K/6.25K/10K/12.5K/25K – Step frequency is the step from one frequency to the next when the up or down key is pressed in frequency mode. If you are at 300MHz and the step is 25K (Khz), then pressing the UP key once will give you a frequency of 300.025MHz. Smaller STEP sizes allow for finer control but require more key presses to make large changes in frequency. The default is 12.5Khz.

TXP – Output Power – LOW/MID/HIGH – This is the Transmit Power of the radio. While the actual values vary depending on the frequency, the basic values are Low - , Medium - , High – 5W.

R_DCS – Receive DCS – (OFF,1-104:DCS, 105-208: reverse DCS). – Short Press F+* to trigger DCS to scanning. – DCS is Digital Code Squelch. It is a 3 digit binary code that is encoded in the audio transmission below at a low frequency and should be filtered out by the HT so it isn’t heard. It is used to control access to repeaters and other radios which won’t accept transmissions from radios not including the correct DCS code. While the option says it ranges from 1-208, the actual DCS codes are also shown on the menu for selecting. Pressing the F button and then the * button will start the radio scanning on the current frequency for DCS tones. When a tone is detected it is displayed on the screen and you have the option to save it. See Table for a list of the codes for this radio.

R_CTCS – Receive CTCSS – (OFF, 1-50:CTCSS) – Short Press F+* to trigger CTCSS scanning. - CTCSS is Continuous Tone Coded Squelch System. This system is older than DCS and uses a sub-audible tone added to the audio transmission to deactivate the squelch. Pressing the F button and then the * button will start the radio scanning on the current frequency for CTCSS tones. When a tone is detected, it is displayed on the screen and you have the option to save it. See Table for a list of the codes for this radio.

T_DCS – Transmit DCS – (OFF, 1-104: DCS, 105-208:reverse DCS) – DCS is Digital Code Squelch. It is a 3 digit binary code that is encoded in the audio transmission at a low frequency and should be filtered out by the HT so it isn’t heard. It is used to control access to repeaters and other radios which won’t accept transmissions from radios not including the correct DCS code. The selection ranges from OFF to 208 and displays the actual DCS code on the screen. See Table for a list of the codes for this radio.

T_CTCS – Transmit CTCSS – (OFF, 1-50:CTCSS) – CTCSS is Continuous Tone Coded Squelch System. This system is older than DCS and uses a sub-audible tone added to the audio transmission to deactivate the squelch. Pressing the F button and then the * button will start the radio scanning on the current frequency for CTCSS tones. When a tone is detected, it is displayed on the screen and you have the option to save it. See Table for a list of the codes for this radio.

SFT-D – Frequency Deviation Setting – (OFF: TX frequency=RX frequency; ADD: TX frequency=RX frequency + frequency deviation; SUB: TX frequency=RX frequency-frequency deviation) – This setting allows the transmit (TX) frequency to be offset from the receive (RX) frequency. It uses the TX frequency as the starting point and then changes the RX frequency according to this setting and the OFFSET setting. The three options are OFF, ADD and SUB. OFF means that the RX frequency is the same as the TX setting. This is the default. ADD means that the RX frequency will be HIGHER than the TX frequency by the OFFSET. SUB means that the RX frequency will be LOWER than the TX frequency by the OFFSET.

OFFSET – Frequency of Frequency Deviation – (0-999.9999M) – This is the offset amount for the difference between the Transmit (TX) and Receive (RX) frequencies. It can be changed by the STEP frequency to any value that the radio can cover.

W/N – Channel Bandwidth – (0:WIDE,1:NARROW) – This sets the bandwidth of the FM modulation. Since the signal is encoded by modulating the frequency of the carrier (main) frequency, the bandwidth defines how much the frequency can vary from the main frequency. Narrow band can vary a maximum of 12.5KHz. Wide band can vary a maximum of 25KHz.

SCR – Encrypted Communication – (OFF, 1-10: 1 to 10 types of scrambling frequency.) - This radio has the ability to use a simple form of audio encryption called voice inversion. This is done by amplitude modulating the audio with a carrier frequency and then using a low-pass filter to select the lower side-band. This basically flips the tones in the voice but it does not change the cadence of the words. Voice Inversion is easily decrypted with basic equipment. The inversion frequencies can be found in Table .

BCL – Busy Channel Lock – (OFF,ON) – When enabled, this feature will disable the ability to transmit (TX) when the radio detects a transmission already on the channel. It is possible you will not hear the transmission if you are using DCS or CSTSS squelch codes but the radio will also detect the transmission and prevent you from transmitting.

MEM-CH – Channel Save – (Choose the channel by Up/Down Key and Number Key, press MENU key to Save the channel.) - 

SAVE – Battery Save – (OFF/1:1/1:2/1:3/1:4) The rate between active time and sleep time.

VOX – VOX Setting – (OFF: turn off VOX, 1-10: 1 to 10 grade.)

Unlock


Chirp


Mods



Tables and Figures

Table : DCS Codes

Num Code Num Code Num Code Num Code Num Code
001 D023N 022 D131N 043 D251N 064 D371N 085 D532N
002 D025N 023 D132N 044 D252N 065 D411N 086 D546N
003 D026N 024 D134N 045 D255N 066 D412N 087 D565N
004 D031N 025 D143N 046 D261N 067 D413N 088 D606N
005 D032N 026 D145N 047 D263N 068 D423N 089 D612N
006 D036N 027 D152N 048 D265N 069 D431N 090 D624N
007 D043N 028 D155N 049 D266N 070 D432N 091 D627N
008 D047N 029 D156N 050 D271N 071 D445N 092 D631N
009 D051N 030 D162N 051 D274N 072 D446N 093 D632N
010 D053N 031 D165N 052 D306N 073 D452N 094 D654N
011 D054N 032 D172N 053 D311N 074 D454N 095 D662N
012 D065N 033 D174N 054 D315N 075 D455N 096 D664N
013 D071N 034 D205N 055 D325N 076 D462N 097 D703N
014 D072N 035 D212N 056 D331N 077 D464N 098 D712N
015 D073N 036 D223N 057 D332N 078 D465N 099 D723N
016 D074N 037 D225N 058 D343N 079 D466N 100 D731N
017 D114N 038 D226N 059 D346N 080 D503N 101 D732N
018 D115N 039 D243N 060 D351N 081 D506N 102 D734N
019 D116N 040 D244N 061 D356N 082 D516N 103 D743N
020 D122N 041 D245N 062 D364N 083 D523N 104 D754N
021 D125N 042 D246N 063 D365N 084 D526N