WiMo PicoAPRS V4 User manual

PicoAPRS V4
Engineered by Taner Schenker
DB1NTO
Usermanua
www.wimo.com - 1- ©Taner Schenker, 13. December 2022

Tab e of contents
1. PicoAPRS V4....................................................................................................................4
1.1 Optional equipment....................................................................................................5
1.2 Recommended plug-on antennas................................................................................5
1.3 Safety instructions......................................................................................................6
2. Operation..........................................................................................................................7
2.1 Installing and removing t e battery............................................................................7
2.2 Device overview.........................................................................................................8
2.3 General information...................................................................................................8
Turn ON......................................................................................................................8
Software updates.........................................................................................................8
2.4 Mainscreen.................................................................................................................9
5-Way button.............................................................................................................11
On-screen keyboard..................................................................................................11
Mainscreen in APRS modes.....................................................................................12
Mainscreen in FM modes.........................................................................................12
Automatic display of received APRS packets in APRS modes................................13
OPEN........................................................................................................................13
- „FOLLOW“............................................................................................................14
- „WHO IS“..............................................................................................................14
- „S ow QR code“....................................................................................................14
- „Send message“......................................................................................................14
- Received status message........................................................................................15
- Received textmessage („SMS“).............................................................................15
- Received weat er packet........................................................................................16
3 Menu.................................................................................................................................17
3.1 Power OFF...............................................................................................................18
3.2 SOS...........................................................................................................................18
3.2 Settings.....................................................................................................................19
Device mode.............................................................................................................19
Brig tness.................................................................................................................20
GPS Powersave.........................................................................................................20
Beep..........................................................................................................................21
Units..........................................................................................................................21
3.3 Exit...........................................................................................................................21
3.4 GPS...........................................................................................................................22
GPS data...................................................................................................................22
GPS Satellites...........................................................................................................22
Speedometer.............................................................................................................23
Compass....................................................................................................................23
My Home..................................................................................................................23
My Car......................................................................................................................24
My Location..............................................................................................................24
GPS Deviation..........................................................................................................24
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3.5 Last Heard................................................................................................................25
3.6 Bluetoot ..................................................................................................................26
3.7 WIFI®......................................................................................................................26
WIFI setup................................................................................................................26
WIFI status................................................................................................................27
RX WIFI APRS........................................................................................................28
Webconfig.................................................................................................................28
WIFI Reconnect........................................................................................................29
3.8 Last Weat er.............................................................................................................29
3.9 Radio Settings...........................................................................................................29
3.10 Messages................................................................................................................30
Received Messages...................................................................................................30
Sent Messages...........................................................................................................31
New Message............................................................................................................31
New Message Destination→...................................................................................31
New Message Destination SSID→..........................................................................32
New Message Text→...............................................................................................32
New Message Confirm→........................................................................................33
3.11 APRS Settings........................................................................................................33
APRS Symbol...........................................................................................................33
TX Interval................................................................................................................34
MyCall......................................................................................................................34
MySSID....................................................................................................................35
APRS Frequency......................................................................................................36
My Comment............................................................................................................37
3.12 FM Voice Settings..................................................................................................37
3.13 Device Info.............................................................................................................38
4. Technical specifications..................................................................................................38
5. Trou leshooting..............................................................................................................38
6. Manufacturer information............................................................................................39
7. EU CE Declaration of Conformity...............................................................................40
8. Disclaimer.......................................................................................................................41
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1. PicoAPRS V4
PicoAPRS V4 is one of he smalles , if no he smalles radio in he world wi h his range of func ions!
As he "V4" in he name already sugges s, his is already he four h genera ion of he " iny one".
In his version, PicoAPRS has been comple ely revised and, despi e i s iny dimensions, has received
many new func ions.
Below:
- Co orscreen wi h 240x240 pixel.
- B uetooth® (Classic) for use as TNC.
- WiFi® for use as iGa e, for configura ion & sof wareupda es wi hou using a PC
- Speaker, Michrophone and PTT for FM voice communica ion
- 5 way button for easy usage
- On screen keyboard easy ex inpu
- USB-C connec or for charging and communica ion
In addi ion, PicoAPRS V4 is curren ly available in hree differen varian s.
1. VHF variant. This module offers he larges range of func ions. I enables he use of APRS in he 2m
band as well as opera ion as an iGa e wi hou a PC (via WiFi®), Blue oo h TNC and voice radio on he
2m ama eur radio band. The ransmission power is a maximum of 1 wa .
2. LoRa variant. The LoRa module enables he use of LoRA-APRS in he 70cm band (433 MHz) and
he iGa e func ion wi hou a PC.
The buil -in speaker and microphone are no used.
3. Shortwave receiver variant. Wi h his i is possible o receive SSB (USB/LSB) on ama eur radio
bands (80m o 10m) and FM radio (88 MHz - 108 MHz). APRS can only be used via WiFi connec ion.
Measuring only approx. 35mm x 66mm x 25mm, he PicoAPRS resembles a
ma chbox. The VHF varian (wi hou an enna) weighs jus 60 grams.
Ideal for always having he device wi h you, e.g. when hiking, cycling, mo orcycling,
skiing, on a boa or in he air.
APRS® & Mic-Encoder® are registered trademarks of Bob Bruninga, WB4APR
www.wimo.com - 4- ©Taner Schenker, 13. December 2022

1.1 Optional equipment
PicoAPRS comes wi hou an enna and charger.
Order. Nr.
35055 Secondary ba ery 3,6V/850mAh
35061 USB-charger
42854.02 Adap er SMA-(male)/BNC(female), ul ra shor , black
1.2 Recommended plug-on antennas
Manufacturer DIAMOND DIAMOND DIAMOND
Type SRH-805 SRH-815S SRH-36
Frequency range 144-148 MHz 144-148 MHz 144-148 MHz
Connector SMA SMA SMA
Gain 0dBi 2dBi 3dBi
Length 4.5cm 13cm 36cm
Order nr. 17023 17021 17022
Recommended Magnetfic mount antennas
Order. Nr.
20117.SMA DIAMOND MR-77S Magne ic moun an enna, 4m cable, foo 65mm diame er
20119.SMA DIAMOND MR-75S Magne ic moun an enna, 3m cable, foo 30mm diame er
20111.SMA No-Name Magne ic moun an enna, 3m cable
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1.3 Safety instructions
Please keep your PicoAPRS away from children!
Warning: Small par s ha can be swallowed!
- The device is no wa erproof and is no pro ec ed agains he ingress of splashing wa er.
Please only use i in dry environmen !
- Do no expose he device o excessive hea (e.g. parked vehicle in s rong sunligh ).
- Do no use damaged componen s.
The ba ery used s ores energy wi h a high densi y. Improper handling of he ba ery can
lead o dangerous si ua ions. Please no e he following informa ion on safe y when handling
he ba ery.
- Do no open he ba ery or ry o repair i
- Do no shor -circui he connec ions
- Do no expose he ba ery o high empera ures or burn i
- Do no bring he ba ery in o con ac wi h liquids or immerse i
- Do no charge he ba ery when he ba ery is warm or near hea sources.
- S op using a defec ive or damaged ba ery
- Do no charge he ba ery wi h hird-par y chargers
- Do no place he device on a flammable surface
- Remove he ba ery from your PicoAPRS if you will no be using he device for a long ime
- Tape off he ba ery con ac s when s oring hem ou side of he device o avoid acciden al
shor circui s.
Battery Disposa Instructions
In connec ion wi h he sale of ba eries or he delivery of devices con aining ba eries, he
provider is obliged o inform he cus omer of he following:
As he end user, he cus omer is legally obliged o re urn used ba eries. He can re urn old
ba eries, which he Provider has or has had in i s range as new ba eries, free of charge o
he Provider's shipping warehouse (shipping address). Ba eries and rechargeable ba eries
mus no be disposed of wi h household was e.
The symbol according o §17 paragraph 1 Ba G and he charac ers according o §17
paragraph 3 Ba G
have he following meaning:
Pb = ba ery con ains more han 0.004% lead by mass
Cd = ba ery con ains more han 0.002 percen by mass of cadmium
Hg = ba ery con ains more han 0.0005 percen by mass of mercury
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2. Operation
2.1 Installing and removing the battery
1. Unlock t e battery cover by pulling t e tab on t e cover down wit your
fingernail.
2. Remove t e battery cover.
3. Remove t e battery from t e device at t e rear end of t e battery (recessed
grip).
Insert in reverse order, please note the alignment of the baery contacts to the
contacts in the PicoAPRS.
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2.2 evice overview
2.3 General information
- PicoAPRS V4 can only be operated wit an inserted battery.
- A c arging process is only displayed w en t e device is switc ed on. However, t e battery is also
c arged w en t e device is switc ed off.
Turn ON
- To urn on, p ease press the PTT for at east 3 seconds un il you hear a one.
Software updates
Since the PicoAPRS software is constantly eing developed and improved, we
recommend checking for updates regularly!
To do this, the WLAN connection must e configured once. Availa le software
updates can then e regularly checked and updated directly in the device
menu. No computer is required for this!
www.wimo.com - 8- ©Taner Schenker, 13. December 2022
Speaker
Display
5-way button
Microp one
PTT-button

2.4 Mainscreen
T e content of t e main screen c anges depending on t e set operating mode.
T e screen as no touc function. T e "soft buttons" s own (in lig t blue, ere "MENU" and SET")
indicate t e situation-dependent function of t e left and rig t button of t e 5-way button.
If t ere are small triangles (see image below) pointing up and down between t e “soft keys”, it
means t at t e up and down keys ave a function at t at moment.
The following information is displayed on the main screen:
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Battery state
Betriebsmodus
Number of used
GPS satellites
GPS-state
Bluetoot ®-state
WIFI®-state
Button Function
RIGHT
Button function
LEFT
„RX“/„TX“ Indicator
Info area
UP/DOWN buttons
are assigned
functions

Explanations of the exemplary main screen display in 2m APRS operation:
- he buil -in li hium ion ba ery is fully charged. The ba ery icon is comple ely filled in green.
A red riangle appears when charging
- To he righ of he ba ery, “TX” appears in red when ransmi ing, while “RX” is green
when receiving, or here is no indica or when nei her ransmi ing nor he squelch is open.
- Curren ly 10 sa elli es are used for posi ion de ermina ion, GPS and Blue oo h are ac ive.
- Your own call sign wi h SSID and he APRS symbol used
- Time (UTC) 15:16:40 (hours:minu es:seconds)
- The speed is 1kp/h
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The GPS icon flashes during GPS search.
If he GPS receiver has been emporarily deac iva ed o save energy (see "GPS
Powersave"), no GPS symbol will appear a his poin .
A small "D" o he righ of he number means ha "Differen ial GPS" (WAAS/EGNOS) is
used via SBAS signal and he precision of he GPS posi ion is more accura e.